/drupal7/modules/simpletest/drupal_web_test_case.php - Club Drupal - Forge Centrale Marseille

root / drupal7 / modules / simpletest / drupal_web_test_case.php @ 30d5b9c5

       <?php
       /**
        * Global variable that holds information about the tests being run.
+       *
        * An array, with the following keys:
        *  - 'test_run_id': the ID of the test being run, in the form 'simpletest_%"
        *  - 'in_child_site': TRUE if the current request is a cURL request from
        *     the parent site.
+       *
        * @var array
        */
       global $drupal_test_info;
       /**
        * Base class for Drupal tests.
+       *
        * Do not extend this class, use one of the subclasses in this file.
        */
       abstract class DrupalTestCase {
         /**
          * The test run ID.
+         *
          * @var string
          */
         protected $testId;
         /**
          * The database prefix of this test run.
+         *
          * @var string
          */
         protected $databasePrefix = NULL;
         /**
          * The original file directory, before it was changed for testing purposes.
+         *
          * @var string
          */
         protected $originalFileDirectory = NULL;
         /**
          * Time limit for the test.
          */
         protected $timeLimit = 500;
         /**
          * Current results of this test case.
+         *
          * @var Array
          */
         public $results = array(
           '#pass' => 0,
           '#fail' => 0,
           '#exception' => 0,
           '#debug' => 0,
         );
         /**
          * Assertions thrown in that test case.
+         *
          * @var Array
          */
         protected $assertions = array();
         /**
          * This class is skipped when looking for the source of an assertion.
+         *
          * When displaying which function an assert comes from, it's not too useful
          * to see "drupalWebTestCase->drupalLogin()', we would like to see the test
          * that called it. So we need to skip the classes defining these helper
          * methods.
          */
         protected $skipClasses = array(__CLASS__ => TRUE);
         /**
          * Flag to indicate whether the test has been set up.
+         *
          * The setUp() method isolates the test from the parent Drupal site by
          * creating a random prefix for the database and setting up a clean file
          * storage directory. The tearDown() method then cleans up this test
          * environment. We must ensure that setUp() has been run. Otherwise,
          * tearDown() will act on the parent Drupal site rather than the test
          * environment, destroying live data.
          */
         protected $setup = FALSE;
         protected $setupDatabasePrefix = FALSE;
         protected $setupEnvironment = FALSE;
         /**
          * Constructor for DrupalTestCase.
+         *
          * @param $test_id
          *   Tests with the same id are reported together.
          */
         public function __construct($test_id = NULL) {
           $this->testId = $test_id;
+        }
         /**
          * Internal helper: stores the assert.
+         *
          * @param $status
          *   Can be 'pass', 'fail', 'exception'.
          *   TRUE is a synonym for 'pass', FALSE for 'fail'.
          * @param $message
          *   The message string.
          * @param $group
          *   Which group this assert belongs to.
          * @param $caller
          *   By default, the assert comes from a function whose name starts with
          *   'test'. Instead, you can specify where this assert originates from
          *   by passing in an associative array as $caller. Key 'file' is
          *   the name of the source file, 'line' is the line number and 'function'
          *   is the caller function itself.
          */
         protected function assert($status, $message = '', $group = 'Other', array $caller = NULL) {
           // Convert boolean status to string status.
           if (is_bool($status)) {
             $status = $status ? 'pass' : 'fail';
+          }
           // Increment summary result counter.
           $this->results['#' . $status]++;
           // Get the function information about the call to the assertion method.
           if (!$caller) {
             $caller = $this->getAssertionCall();
+          }
           // Creation assertion array that can be displayed while tests are running.
           $this->assertions[] = $assertion = array(
             'test_id' => $this->testId,
             'test_class' => get_class($this),
             'status' => $status,
             'message' => $message,
             'message_group' => $group,
             'function' => $caller['function'],
             'line' => $caller['line'],
             'file' => $caller['file'],
           );
           // Store assertion for display after the test has completed.
           self::getDatabaseConnection()
             ->insert('simpletest')
             ->fields($assertion)
             ->execute();
           // We do not use a ternary operator here to allow a breakpoint on
           // test failure.
           if ($status == 'pass') {
             return TRUE;
+          }
           else {
             return FALSE;
+          }
+        }
         /**
          * Returns the database connection to the site running Simpletest.
+         *
          * @return DatabaseConnection
          *   The database connection to use for inserting assertions.
          */
         public static function getDatabaseConnection() {
           try {
             $connection = Database::getConnection('default', 'simpletest_original_default');
+          }
           catch (DatabaseConnectionNotDefinedException $e) {
             // If the test was not set up, the simpletest_original_default
             // connection does not exist.
             $connection = Database::getConnection('default', 'default');
+          }
           return $connection;
+        }
         /**
          * Store an assertion from outside the testing context.
+         *
          * This is useful for inserting assertions that can only be recorded after
          * the test case has been destroyed, such as PHP fatal errors. The caller
          * information is not automatically gathered since the caller is most likely
          * inserting the assertion on behalf of other code. In all other respects
          * the method behaves just like DrupalTestCase::assert() in terms of storing
          * the assertion.
+         *
          * @return
          *   Message ID of the stored assertion.
+         *
          * @see DrupalTestCase::assert()
          * @see DrupalTestCase::deleteAssert()
          */
         public static function insertAssert($test_id, $test_class, $status, $message = '', $group = 'Other', array $caller = array()) {
           // Convert boolean status to string status.
           if (is_bool($status)) {
             $status = $status ? 'pass' : 'fail';
+          }
           $caller += array(
             'function' => t('Unknown'),
             'line' => 0,
             'file' => t('Unknown'),
           );
           $assertion = array(
             'test_id' => $test_id,
             'test_class' => $test_class,
             'status' => $status,
             'message' => $message,
             'message_group' => $group,
             'function' => $caller['function'],
             'line' => $caller['line'],
             'file' => $caller['file'],
           );
           return self::getDatabaseConnection()
             ->insert('simpletest')
             ->fields($assertion)
             ->execute();
+        }
         /**
          * Delete an assertion record by message ID.
+         *
          * @param $message_id
          *   Message ID of the assertion to delete.
          * @return
          *   TRUE if the assertion was deleted, FALSE otherwise.
+         *
          * @see DrupalTestCase::insertAssert()
          */
         public static function deleteAssert($message_id) {
           return (bool) self::getDatabaseConnection()
             ->delete('simpletest')
             ->condition('message_id', $message_id)
             ->execute();
+        }
         /**
          * Cycles through backtrace until the first non-assertion method is found.
+         *
          * @return
          *   Array representing the true caller.
          */
         protected function getAssertionCall() {
           $backtrace = debug_backtrace();
           // The first element is the call. The second element is the caller.
           // We skip calls that occurred in one of the methods of our base classes
           // or in an assertion function.
          while (($caller = $backtrace[1]) &&
                ((isset($caller['class']) && isset($this->skipClasses[$caller['class']])) ||
                  substr($caller['function'], 0, 6) == 'assert')) {
             // We remove that call.
             array_shift($backtrace);
+          }
           return _drupal_get_last_caller($backtrace);
+        }
         /**
          * Check to see if a value is not false (not an empty string, 0, NULL, or FALSE).
+         *
          * @param $value
          *   The value on which the assertion is to be done.
          * @param $message
          *   The message to display along with the assertion.
          * @param $group
          *   The type of assertion - examples are "Browser", "PHP".
          * @return
          *   TRUE if the assertion succeeded, FALSE otherwise.
          */
         protected function assertTrue($value, $message = '', $group = 'Other') {
           return $this->assert((bool) $value, $message ? $message : t('Value @value is TRUE.', array('@value' => var_export($value, TRUE))), $group);
+        }
         /**
          * Check to see if a value is false (an empty string, 0, NULL, or FALSE).
+         *
          * @param $value
          *   The value on which the assertion is to be done.
          * @param $message
          *   The message to display along with the assertion.
          * @param $group
          *   The type of assertion - examples are "Browser", "PHP".
          * @return
          *   TRUE if the assertion succeeded, FALSE otherwise.
          */
         protected function assertFalse($value, $message = '', $group = 'Other') {
           return $this->assert(!$value, $message ? $message : t('Value @value is FALSE.', array('@value' => var_export($value, TRUE))), $group);
+        }
         /**
          * Check to see if a value is NULL.
+         *
          * @param $value
          *   The value on which the assertion is to be done.
          * @param $message
          *   The message to display along with the assertion.
          * @param $group
          *   The type of assertion - examples are "Browser", "PHP".
          * @return
          *   TRUE if the assertion succeeded, FALSE otherwise.
          */
         protected function assertNull($value, $message = '', $group = 'Other') {
           return $this->assert(!isset($value), $message ? $message : t('Value @value is NULL.', array('@value' => var_export($value, TRUE))), $group);
+        }
         /**
          * Check to see if a value is not NULL.
+         *
          * @param $value
          *   The value on which the assertion is to be done.
          * @param $message
          *   The message to display along with the assertion.
          * @param $group
          *   The type of assertion - examples are "Browser", "PHP".
          * @return
          *   TRUE if the assertion succeeded, FALSE otherwise.
          */
         protected function assertNotNull($value, $message = '', $group = 'Other') {
           return $this->assert(isset($value), $message ? $message : t('Value @value is not NULL.', array('@value' => var_export($value, TRUE))), $group);
+        }
         /**
          * Check to see if two values are equal.
+         *
          * @param $first
          *   The first value to check.
          * @param $second
          *   The second value to check.
          * @param $message
          *   The message to display along with the assertion.
          * @param $group
          *   The type of assertion - examples are "Browser", "PHP".
          * @return
          *   TRUE if the assertion succeeded, FALSE otherwise.
          */
         protected function assertEqual($first, $second, $message = '', $group = 'Other') {
           return $this->assert($first == $second, $message ? $message : t('Value @first is equal to value @second.', array('@first' => var_export($first, TRUE), '@second' => var_export($second, TRUE))), $group);
+        }
         /**
          * Check to see if two values are not equal.
+         *
          * @param $first
          *   The first value to check.
          * @param $second
          *   The second value to check.
          * @param $message
          *   The message to display along with the assertion.
          * @param $group
          *   The type of assertion - examples are "Browser", "PHP".
          * @return
          *   TRUE if the assertion succeeded, FALSE otherwise.
          */
         protected function assertNotEqual($first, $second, $message = '', $group = 'Other') {
           return $this->assert($first != $second, $message ? $message : t('Value @first is not equal to value @second.', array('@first' => var_export($first, TRUE), '@second' => var_export($second, TRUE))), $group);
+        }
         /**
          * Check to see if two values are identical.
+         *
          * @param $first
          *   The first value to check.
          * @param $second
          *   The second value to check.
          * @param $message
          *   The message to display along with the assertion.
          * @param $group
          *   The type of assertion - examples are "Browser", "PHP".
          * @return
          *   TRUE if the assertion succeeded, FALSE otherwise.
          */
         protected function assertIdentical($first, $second, $message = '', $group = 'Other') {
           return $this->assert($first === $second, $message ? $message : t('Value @first is identical to value @second.', array('@first' => var_export($first, TRUE), '@second' => var_export($second, TRUE))), $group);
+        }
         /**
          * Check to see if two values are not identical.
+         *
          * @param $first
          *   The first value to check.
          * @param $second
          *   The second value to check.
          * @param $message
          *   The message to display along with the assertion.
          * @param $group
          *   The type of assertion - examples are "Browser", "PHP".
          * @return
          *   TRUE if the assertion succeeded, FALSE otherwise.
          */
         protected function assertNotIdentical($first, $second, $message = '', $group = 'Other') {
           return $this->assert($first !== $second, $message ? $message : t('Value @first is not identical to value @second.', array('@first' => var_export($first, TRUE), '@second' => var_export($second, TRUE))), $group);
+        }
         /**
          * Fire an assertion that is always positive.
+         *
          * @param $message
          *   The message to display along with the assertion.
          * @param $group
          *   The type of assertion - examples are "Browser", "PHP".
          * @return
          *   TRUE.
          */
         protected function pass($message = NULL, $group = 'Other') {
           return $this->assert(TRUE, $message, $group);
+        }
         /**
          * Fire an assertion that is always negative.
+         *
          * @param $message
          *   The message to display along with the assertion.
          * @param $group
          *   The type of assertion - examples are "Browser", "PHP".
          * @return
          *   FALSE.
          */
         protected function fail($message = NULL, $group = 'Other') {
           return $this->assert(FALSE, $message, $group);
+        }
         /**
          * Fire an error assertion.
+         *
          * @param $message
          *   The message to display along with the assertion.
          * @param $group
          *   The type of assertion - examples are "Browser", "PHP".
          * @param $caller
          *   The caller of the error.
          * @return
          *   FALSE.
          */
         protected function error($message = '', $group = 'Other', array $caller = NULL) {
           if ($group == 'User notice') {
             // Since 'User notice' is set by trigger_error() which is used for debug
             // set the message to a status of 'debug'.
             return $this->assert('debug', $message, 'Debug', $caller);
+          }
           return $this->assert('exception', $message, $group, $caller);
+        }
         /**
          * Logs a verbose message in a text file.
+         *
          * The link to the verbose message will be placed in the test results as a
          * passing assertion with the text '[verbose message]'.
+         *
          * @param $message
          *   The verbose message to be stored.
+         *
          * @see simpletest_verbose()
          */
         protected function verbose($message) {
           if ($id = simpletest_verbose($message)) {
             $class_safe = str_replace('\\', '_', get_class($this));
             $url = file_create_url($this->originalFileDirectory . '/simpletest/verbose/' . $class_safe . '-' . $id . '.html');
             $this->error(l(t('Verbose message'), $url, array('attributes' => array('target' => '_blank'))), 'User notice');
+          }
+        }
         /**
          * Run all tests in this class.
+         *
          * Regardless of whether $methods are passed or not, only method names
          * starting with "test" are executed.
+         *
          * @param $methods
          *   (optional) A list of method names in the test case class to run; e.g.,
          *   array('testFoo', 'testBar'). By default, all methods of the class are
          *   taken into account, but it can be useful to only run a few selected test
          *   methods during debugging.
          */
         public function run(array $methods = array()) {
           // Initialize verbose debugging.
           $class = get_class($this);
           simpletest_verbose(NULL, variable_get('file_public_path', conf_path() . '/files'), str_replace('\\', '_', $class));
           // HTTP auth settings (<username>:<password>) for the simpletest browser
           // when sending requests to the test site.
           $this->httpauth_method = variable_get('simpletest_httpauth_method', CURLAUTH_BASIC);
           $username = variable_get('simpletest_httpauth_username', NULL);
           $password = variable_get('simpletest_httpauth_password', NULL);
           if ($username && $password) {
             $this->httpauth_credentials = $username . ':' . $password;
+          }
           set_error_handler(array($this, 'errorHandler'));
           // Iterate through all the methods in this class, unless a specific list of
           // methods to run was passed.
           $class_methods = get_class_methods($class);
           if ($methods) {
             $class_methods = array_intersect($class_methods, $methods);
+          }
           foreach ($class_methods as $method) {
             // If the current method starts with "test", run it - it's a test.
             if (strtolower(substr($method, 0, 4)) == 'test') {
               // Insert a fail record. This will be deleted on completion to ensure
               // that testing completed.
               $method_info = new ReflectionMethod($class, $method);
               $caller = array(
                 'file' => $method_info->getFileName(),
                 'line' => $method_info->getStartLine(),
                 'function' => $class . '->' . $method . '()',
               );
               $completion_check_id = DrupalTestCase::insertAssert($this->testId, $class, FALSE, t('The test did not complete due to a fatal error.'), 'Completion check', $caller);
               $this->setUp();
               if ($this->setup) {
                 try {
                   $this->$method();
                   // Finish up.
+                }
                 catch (Exception $e) {
                   $this->exceptionHandler($e);
+                }
                 $this->tearDown();
+              }
               else {
                 $this->fail(t("The test cannot be executed because it has not been set up properly."));
+              }
               // Remove the completion check record.
               DrupalTestCase::deleteAssert($completion_check_id);
+            }
+          }
           // Clear out the error messages and restore error handler.
           drupal_get_messages();
           restore_error_handler();
+        }
         /**
          * Handle errors during test runs.
+         *
          * Because this is registered in set_error_handler(), it has to be public.
          * @see set_error_handler
          */
         public function errorHandler($severity, $message, $file = NULL, $line = NULL) {
           if ($severity & error_reporting()) {
             $error_map = array(
               E_STRICT => 'Run-time notice',
               E_WARNING => 'Warning',
               E_NOTICE => 'Notice',
               E_CORE_ERROR => 'Core error',
               E_CORE_WARNING => 'Core warning',
               E_USER_ERROR => 'User error',
               E_USER_WARNING => 'User warning',
               E_USER_NOTICE => 'User notice',
               E_RECOVERABLE_ERROR => 'Recoverable error',
             );
             // PHP 5.3 adds new error logging constants. Add these conditionally for
             // backwards compatibility with PHP 5.2.
             if (defined('E_DEPRECATED')) {
               $error_map += array(
                 E_DEPRECATED => 'Deprecated',
                 E_USER_DEPRECATED => 'User deprecated',
               );
+            }
             $backtrace = debug_backtrace();
             $this->error($message, $error_map[$severity], _drupal_get_last_caller($backtrace));
+          }
           return TRUE;
+        }
         /**
          * Handle exceptions.
+         *
          * @see set_exception_handler
          */
         protected function exceptionHandler($exception) {
           $backtrace = $exception->getTrace();
           // Push on top of the backtrace the call that generated the exception.
           array_unshift($backtrace, array(
             'line' => $exception->getLine(),
             'file' => $exception->getFile(),
           ));
           require_once DRUPAL_ROOT . '/includes/errors.inc';
           // The exception message is run through check_plain() by _drupal_decode_exception().
           $this->error(t('%type: !message in %function (line %line of %file).', _drupal_decode_exception($exception)), 'Uncaught exception', _drupal_get_last_caller($backtrace));
+        }
         /**
          * Generates a random string of ASCII characters of codes 32 to 126.
+         *
          * The generated string includes alpha-numeric characters and common
          * miscellaneous characters. Use this method when testing general input
          * where the content is not restricted.
+         *
          * Do not use this method when special characters are not possible (e.g., in
          * machine or file names that have already been validated); instead,
          * use DrupalWebTestCase::randomName().
+         *
          * @param $length
          *   Length of random string to generate.
+         *
          * @return
          *   Randomly generated string.
+         *
          * @see DrupalWebTestCase::randomName()
          */
         public static function randomString($length = 8) {
           $str = '';
           for ($i = 0; $i < $length; $i++) {
             $str .= chr(mt_rand(32, 126));
+          }
           return $str;
+        }
         /**
          * Generates a random string containing letters and numbers.
+         *
          * The string will always start with a letter. The letters may be upper or
          * lower case. This method is better for restricted inputs that do not
          * accept certain characters. For example, when testing input fields that
          * require machine readable values (i.e. without spaces and non-standard
          * characters) this method is best.
+         *
          * Do not use this method when testing unvalidated user input. Instead, use
          * DrupalWebTestCase::randomString().
+         *
          * @param $length
          *   Length of random string to generate.
+         *
          * @return
          *   Randomly generated string.
+         *
          * @see DrupalWebTestCase::randomString()
          */
         public static function randomName($length = 8) {
           $values = array_merge(range(65, 90), range(97, 122), range(48, 57));
           $max = count($values) - 1;
           $str = chr(mt_rand(97, 122));
           for ($i = 1; $i < $length; $i++) {
             $str .= chr($values[mt_rand(0, $max)]);
+          }
           return $str;
+        }
         /**
          * Converts a list of possible parameters into a stack of permutations.
+         *
          * Takes a list of parameters containing possible values, and converts all of
          * them into a list of items containing every possible permutation.
+         *
          * Example:
          * @code
          * $parameters = array(
          *   'one' => array(0, 1),
          *   'two' => array(2, 3),
          * );
          * $permutations = DrupalTestCase::generatePermutations($parameters)
          * // Result:
          * $permutations == array(
          *   array('one' => 0, 'two' => 2),
          *   array('one' => 1, 'two' => 2),
          *   array('one' => 0, 'two' => 3),
          *   array('one' => 1, 'two' => 3),
          * )
          * @endcode
+         *
          * @param $parameters
          *   An associative array of parameters, keyed by parameter name, and whose
          *   values are arrays of parameter values.
+         *
          * @return
          *   A list of permutations, which is an array of arrays. Each inner array
          *   contains the full list of parameters that have been passed, but with a
          *   single value only.
          */
         public static function generatePermutations($parameters) {
           $all_permutations = array(array());
           foreach ($parameters as $parameter => $values) {
             $new_permutations = array();
             // Iterate over all values of the parameter.
             foreach ($values as $value) {
               // Iterate over all existing permutations.
               foreach ($all_permutations as $permutation) {
                 // Add the new parameter value to existing permutations.
                 $new_permutations[] = $permutation + array($parameter => $value);
+              }
+            }
             // Replace the old permutations with the new permutations.
             $all_permutations = $new_permutations;
+          }
           return $all_permutations;
+        }
+      }
       /**
        * Test case for Drupal unit tests.
+       *
        * These tests can not access the database nor files. Calling any Drupal
        * function that needs the database will throw exceptions. These include
        * watchdog(), module_implements(), module_invoke_all() etc.
        */
       class DrupalUnitTestCase extends DrupalTestCase {
         /**
          * Constructor for DrupalUnitTestCase.
          */
         function __construct($test_id = NULL) {
           parent::__construct($test_id);
           $this->skipClasses[__CLASS__] = TRUE;
+        }
         /**
          * Sets up unit test environment.
+         *
          * Unlike DrupalWebTestCase::setUp(), DrupalUnitTestCase::setUp() does not
          * install modules because tests are performed without accessing the database.
          * Any required files must be explicitly included by the child class setUp()
          * method.
          */
         protected function setUp() {
           global $conf;
           // Store necessary current values before switching to the test environment.
           $this->originalFileDirectory = variable_get('file_public_path', conf_path() . '/files');
           // Reset all statics so that test is performed with a clean environment.
           drupal_static_reset();
           // Generate temporary prefixed database to ensure that tests have a clean starting point.
           $this->databasePrefix = Database::getConnection()->prefixTables('{simpletest' . mt_rand(1000, 1000000) . '}');
           // Create test directory.
           $public_files_directory = $this->originalFileDirectory . '/simpletest/' . substr($this->databasePrefix, 10);
           file_prepare_directory($public_files_directory, FILE_CREATE_DIRECTORY | FILE_MODIFY_PERMISSIONS);
           $conf['file_public_path'] = $public_files_directory;
           // Clone the current connection and replace the current prefix.
           $connection_info = Database::getConnectionInfo('default');
           Database::renameConnection('default', 'simpletest_original_default');
           foreach ($connection_info as $target => $value) {
             $connection_info[$target]['prefix'] = array(
               'default' => $value['prefix']['default'] . $this->databasePrefix,
             );
+          }
           Database::addConnectionInfo('default', 'default', $connection_info['default']);
           // Set user agent to be consistent with web test case.
           $_SERVER['HTTP_USER_AGENT'] = $this->databasePrefix;
           // If locale is enabled then t() will try to access the database and
           // subsequently will fail as the database is not accessible.
           $module_list = module_list();
           if (isset($module_list['locale'])) {
             // Transform the list into the format expected as input to module_list().
             foreach ($module_list as &$module) {
               $module = array('filename' => drupal_get_filename('module', $module));
+            }
             $this->originalModuleList = $module_list;
             unset($module_list['locale']);
             module_list(TRUE, FALSE, FALSE, $module_list);
+          }
           $this->setup = TRUE;
+        }
         protected function tearDown() {
           global $conf;
           // Get back to the original connection.
           Database::removeConnection('default');
           Database::renameConnection('simpletest_original_default', 'default');
           $conf['file_public_path'] = $this->originalFileDirectory;
           // Restore modules if necessary.
           if (isset($this->originalModuleList)) {
             module_list(TRUE, FALSE, FALSE, $this->originalModuleList);
+          }
+        }
+      }
       /**
        * Test case for typical Drupal tests.
        */
       class DrupalWebTestCase extends DrupalTestCase {
         /**
          * The profile to install as a basis for testing.
+         *
          * @var string
          */
         protected $profile = 'standard';
         /**
          * The URL currently loaded in the internal browser.
+         *
          * @var string
          */
         protected $url;
         /**
          * The handle of the current cURL connection.
+         *
          * @var resource
          */
         protected $curlHandle;
         /**
          * The headers of the page currently loaded in the internal browser.
+         *
          * @var Array
          */
         protected $headers;
         /**
          * The content of the page currently loaded in the internal browser.
+         *
          * @var string
          */
         protected $content;
         /**
          * The content of the page currently loaded in the internal browser (plain text version).
+         *
          * @var string
          */
         protected $plainTextContent;
         /**
          * The value of the Drupal.settings JavaScript variable for the page currently loaded in the internal browser.
+         *
          * @var Array
          */
         protected $drupalSettings;
         /**
          * The parsed version of the page.
+         *
          * @var SimpleXMLElement
          */
         protected $elements = NULL;
         /**
          * The current user logged in using the internal browser.
+         *
          * @var bool
          */
         protected $loggedInUser = FALSE;
         /**
          * The current cookie file used by cURL.
+         *
          * We do not reuse the cookies in further runs, so we do not need a file
          * but we still need cookie handling, so we set the jar to NULL.
          */
         protected $cookieFile = NULL;
         /**
          * Additional cURL options.
+         *
          * DrupalWebTestCase itself never sets this but always obeys what is set.
          */
         protected $additionalCurlOptions = array();
         /**
          * The original user, before it was changed to a clean uid = 1 for testing purposes.
+         *
          * @var object
          */
         protected $originalUser = NULL;
         /**
          * The original shutdown handlers array, before it was cleaned for testing purposes.
+         *
          * @var array
          */
         protected $originalShutdownCallbacks = array();
         /**
          * HTTP authentication method
          */
         protected $httpauth_method = CURLAUTH_BASIC;
         /**
          * HTTP authentication credentials (<username>:<password>).
          */
         protected $httpauth_credentials = NULL;
         /**
          * The current session name, if available.
          */
         protected $session_name = NULL;
         /**
          * The current session ID, if available.
          */
         protected $session_id = NULL;
         /**
          * Whether the files were copied to the test files directory.
          */
         protected $generatedTestFiles = FALSE;
         /**
          * The number of redirects followed during the handling of a request.
          */
         protected $redirect_count;
         /**
          * Constructor for DrupalWebTestCase.
          */
         function __construct($test_id = NULL) {
           parent::__construct($test_id);
           $this->skipClasses[__CLASS__] = TRUE;
+        }
         /**
          * Get a node from the database based on its title.
+         *
          * @param $title
          *   A node title, usually generated by $this->randomName().
          * @param $reset
          *   (optional) Whether to reset the internal node_load() cache.
+         *
          * @return
          *   A node object matching $title.
          */
         function drupalGetNodeByTitle($title, $reset = FALSE) {
           $nodes = node_load_multiple(array(), array('title' => $title), $reset);
           // Load the first node returned from the database.
           $returned_node = reset($nodes);
           return $returned_node;
+        }
         /**
          * Creates a node based on default settings.
+         *
          * @param $settings
          *   An associative array of settings to change from the defaults, keys are
          *   node properties, for example 'title' => 'Hello, world!'.
          * @return
          *   Created node object.
          */
         protected function drupalCreateNode($settings = array()) {
           // Populate defaults array.
           $settings += array(
             'body'      => array(LANGUAGE_NONE => array(array())),
             'title'     => $this->randomName(8),
             'comment'   => 2,
             'changed'   => REQUEST_TIME,
             'moderate'  => 0,
             'promote'   => 0,
             'revision'  => 1,
             'log'       => '',
             'status'    => 1,
             'sticky'    => 0,
             'type'      => 'page',
             'revisions' => NULL,
             'language'  => LANGUAGE_NONE,
           );
           // Use the original node's created time for existing nodes.
           if (isset($settings['created']) && !isset($settings['date'])) {
             $settings['date'] = format_date($settings['created'], 'custom', 'Y-m-d H:i:s O');
+          }
           // If the node's user uid is not specified manually, use the currently
           // logged in user if available, or else the user running the test.
           if (!isset($settings['uid'])) {
             if ($this->loggedInUser) {
               $settings['uid'] = $this->loggedInUser->uid;
+            }
             else {
               global $user;
               $settings['uid'] = $user->uid;
+            }
+          }
           // Merge body field value and format separately.
           $body = array(
             'value' => $this->randomName(32),
             'format' => filter_default_format(),
           );
           $settings['body'][$settings['language']][0] += $body;
           $node = (object) $settings;
           node_save($node);
           // Small hack to link revisions to our test user.
           db_update('node_revision')
             ->fields(array('uid' => $node->uid))
             ->condition('vid', $node->vid)
             ->execute();
           return $node;
+        }
         /**
          * Creates a custom content type based on default settings.
+         *
          * @param $settings
          *   An array of settings to change from the defaults.
          *   Example: 'type' => 'foo'.
          * @return
          *   Created content type.
          */
         protected function drupalCreateContentType($settings = array()) {
           // Find a non-existent random type name.
           do {
             $name = strtolower($this->randomName(8));
           } while (node_type_get_type($name));
           // Populate defaults array.
           $defaults = array(
             'type' => $name,
             'name' => $name,
             'base' => 'node_content',
             'description' => '',
             'help' => '',
             'title_label' => 'Title',
             'has_title' => 1,
           );
           // Imposed values for a custom type.
           $forced = array(
             'orig_type' => '',
             'old_type' => '',
             'module' => 'node',
             'custom' => 1,
             'modified' => 1,
             'locked' => 0,
           );
           $type = $forced + $settings + $defaults;
           $type = (object) $type;
           $saved_type = node_type_save($type);
           node_types_rebuild();
           menu_rebuild();
           node_add_body_field($type);
           $this->assertEqual($saved_type, SAVED_NEW, t('Created content type %type.', array('%type' => $type->type)));
           // Reset permissions so that permissions for this content type are available.
           $this->checkPermissions(array(), TRUE);
           return $type;
+        }
         /**
          * Get a list files that can be used in tests.
+         *
          * @param $type
          *   File type, possible values: 'binary', 'html', 'image', 'javascript', 'php', 'sql', 'text'.
          * @param $size
          *   File size in bytes to match. Please check the tests/files folder.
          * @return
          *   List of files that match filter.
          */
         protected function drupalGetTestFiles($type, $size = NULL) {
           if (empty($this->generatedTestFiles)) {
             // Generate binary test files.
             $lines = array(64, 1024);
             $count = 0;
             foreach ($lines as $line) {
               simpletest_generate_file('binary-' . $count++, 64, $line, 'binary');
+            }
             // Generate text test files.
             $lines = array(16, 256, 1024, 2048, 20480);
             $count = 0;
             foreach ($lines as $line) {
               simpletest_generate_file('text-' . $count++, 64, $line, 'text');
+            }
             // Copy other test files from simpletest.
             $original = drupal_get_path('module', 'simpletest') . '/files';
             $files = file_scan_directory($original, '/(html|image|javascript|php|sql)-.*/');
             foreach ($files as $file) {
               file_unmanaged_copy($file->uri, variable_get('file_public_path', conf_path() . '/files'));
+            }
             $this->generatedTestFiles = TRUE;
+          }
           $files = array();
           // Make sure type is valid.
           if (in_array($type, array('binary', 'html', 'image', 'javascript', 'php', 'sql', 'text'))) {
             $files = file_scan_directory('public://', '/' . $type . '\-.*/');
             // If size is set then remove any files that are not of that size.
             if ($size !== NULL) {
               foreach ($files as $file) {
                 $stats = stat($file->uri);
                 if ($stats['size'] != $size) {
                   unset($files[$file->uri]);
+                }
+              }
+            }
+          }
           usort($files, array($this, 'drupalCompareFiles'));
           return $files;
+        }
         /**
          * Compare two files based on size and file name.
          */
         protected function drupalCompareFiles($file1, $file2) {
           $compare_size = filesize($file1->uri) - filesize($file2->uri);
           if ($compare_size) {
             // Sort by file size.
             return $compare_size;
+          }
           else {
             // The files were the same size, so sort alphabetically.
             return strnatcmp($file1->name, $file2->name);
+          }
+        }
         /**
          * Create a user with a given set of permissions.
+         *
          * @param array $permissions
          *   Array of permission names to assign to user. Note that the user always
          *   has the default permissions derived from the "authenticated users" role.
+         *
          * @return object|false
          *   A fully loaded user object with pass_raw property, or FALSE if account
          *   creation fails.
          */
         protected function drupalCreateUser(array $permissions = array()) {
           // Create a role with the given permission set, if any.
           $rid = FALSE;
           if ($permissions) {
             $rid = $this->drupalCreateRole($permissions);
             if (!$rid) {
               return FALSE;
+            }
+          }
           // Create a user assigned to that role.
           $edit = array();
           $edit['name']   = $this->randomName();
           $edit['mail']   = $edit['name'] . '@example.com';
           $edit['pass']   = user_password();
           $edit['status'] = 1;
           if ($rid) {
             $edit['roles'] = array($rid => $rid);
+          }
           $account = user_save(drupal_anonymous_user(), $edit);
           $this->assertTrue(!empty($account->uid), t('User created with name %name and pass %pass', array('%name' => $edit['name'], '%pass' => $edit['pass'])), t('User login'));
           if (empty($account->uid)) {
             return FALSE;
+          }
           // Add the raw password so that we can log in as this user.
           $account->pass_raw = $edit['pass'];
           return $account;
+        }
         /**
          * Creates a role with specified permissions.
+         *
          * @param $permissions
          *   Array of permission names to assign to role.
          * @param $name
          *   (optional) String for the name of the role.  Defaults to a random string.
          * @return
          *   Role ID of newly created role, or FALSE if role creation failed.
          */
         protected function drupalCreateRole(array $permissions, $name = NULL) {
           // Generate random name if it was not passed.
           if (!$name) {
             $name = $this->randomName();
+          }
           // Check the all the permissions strings are valid.
           if (!$this->checkPermissions($permissions)) {
             return FALSE;
+          }
           // Create new role.
           $role = new stdClass();
           $role->name = $name;
           user_role_save($role);
           user_role_grant_permissions($role->rid, $permissions);
           $this->assertTrue(isset($role->rid), t('Created role of name: @name, id: @rid', array('@name' => $name, '@rid' => (isset($role->rid) ? $role->rid : t('-n/a-')))), t('Role'));
           if ($role && !empty($role->rid)) {
             $count = db_query('SELECT COUNT(*) FROM {role_permission} WHERE rid = :rid', array(':rid' => $role->rid))->fetchField();
             $this->assertTrue($count == count($permissions), t('Created permissions: @perms', array('@perms' => implode(', ', $permissions))), t('Role'));
             return $role->rid;
+          }
           else {
             return FALSE;
+          }
+        }
         /**
          * Check to make sure that the array of permissions are valid.
+         *
          * @param $permissions
          *   Permissions to check.
          * @param $reset
          *   Reset cached available permissions.
          * @return
          *   TRUE or FALSE depending on whether the permissions are valid.
          */
         protected function checkPermissions(array $permissions, $reset = FALSE) {
           $available = &drupal_static(__FUNCTION__);
           if (!isset($available) || $reset) {
             $available = array_keys(module_invoke_all('permission'));
+          }
           $valid = TRUE;
           foreach ($permissions as $permission) {
             if (!in_array($permission, $available)) {
               $this->fail(t('Invalid permission %permission.', array('%permission' => $permission)), t('Role'));
               $valid = FALSE;
+            }
+          }
           return $valid;
+        }
         /**
          * Log in a user with the internal browser.
+         *
          * If a user is already logged in, then the current user is logged out before
          * logging in the specified user.
+         *
          * Please note that neither the global $user nor the passed-in user object is
          * populated with data of the logged in user. If you need full access to the
          * user object after logging in, it must be updated manually. If you also need
          * access to the plain-text password of the user (set by drupalCreateUser()),
          * e.g. to log in the same user again, then it must be re-assigned manually.
          * For example:
          * @code
          *   // Create a user.
          *   $account = $this->drupalCreateUser(array());
          *   $this->drupalLogin($account);
          *   // Load real user object.
          *   $pass_raw = $account->pass_raw;
          *   $account = user_load($account->uid);
          *   $account->pass_raw = $pass_raw;
          * @endcode
+         *
          * @param $account
          *   User object representing the user to log in.
+         *
          * @see drupalCreateUser()
          */
         protected function drupalLogin(stdClass $account) {
           if ($this->loggedInUser) {
             $this->drupalLogout();
+          }
           $edit = array(
             'name' => $account->name,
             'pass' => $account->pass_raw
           );
           $this->drupalPost('user', $edit, t('Log in'));
           // If a "log out" link appears on the page, it is almost certainly because
           // the login was successful.
           $pass = $this->assertLink(t('Log out'), 0, t('User %name successfully logged in.', array('%name' => $account->name)), t('User login'));
           if ($pass) {
             $this->loggedInUser = $account;
+          }
+        }
         /**
          * Generate a token for the currently logged in user.
          */
         protected function drupalGetToken($value = '') {
           $private_key = drupal_get_private_key();
           return drupal_hmac_base64($value, $this->session_id . $private_key);
+        }
         /*
          * Logs a user out of the internal browser, then check the login page to confirm logout.
          */
         protected function drupalLogout() {
           // Make a request to the logout page, and redirect to the user page, the
           // idea being if you were properly logged out you should be seeing a login
           // screen.
           $this->drupalGet('user/logout');
           $this->drupalGet('user');
           $pass = $this->assertField('name', t('Username field found.'), t('Logout'));
           $pass = $pass && $this->assertField('pass', t('Password field found.'), t('Logout'));
           if ($pass) {
             $this->loggedInUser = FALSE;
+          }
+        }
         /**
          * Generates a database prefix for running tests.
+         *
          * The generated database table prefix is used for the Drupal installation
          * being performed for the test. It is also used as user agent HTTP header
          * value by the cURL-based browser of DrupalWebTestCase, which is sent
          * to the Drupal installation of the test. During early Drupal bootstrap, the
          * user agent HTTP header is parsed, and if it matches, all database queries
          * use the database table prefix that has been generated here.
+         *
          * @see DrupalWebTestCase::curlInitialize()
          * @see drupal_valid_test_ua()
          * @see DrupalWebTestCase::setUp()
          */
         protected function prepareDatabasePrefix() {
           $this->databasePrefix = 'simpletest' . mt_rand(1000, 1000000);
           // As soon as the database prefix is set, the test might start to execute.
           // All assertions as well as the SimpleTest batch operations are associated
           // with the testId, so the database prefix has to be associated with it.
           db_update('simpletest_test_id')
             ->fields(array('last_prefix' => $this->databasePrefix))
             ->condition('test_id', $this->testId)
             ->execute();
+        }
         /**
          * Changes the database connection to the prefixed one.
+         *
          * @see DrupalWebTestCase::setUp()
          */
         protected function changeDatabasePrefix() {
           if (empty($this->databasePrefix)) {
             $this->prepareDatabasePrefix();
             // If $this->prepareDatabasePrefix() failed to work, return without
             // setting $this->setupDatabasePrefix to TRUE, so setUp() methods will
             // know to bail out.
             if (empty($this->databasePrefix)) {
               return;
+            }
+          }
           // Clone the current connection and replace the current prefix.
           $connection_info = Database::getConnectionInfo('default');
           Database::renameConnection('default', 'simpletest_original_default');
           foreach ($connection_info as $target => $value) {
             $connection_info[$target]['prefix'] = array(
               'default' => $value['prefix']['default'] . $this->databasePrefix,
             );
+          }
           Database::addConnectionInfo('default', 'default', $connection_info['default']);
           // Indicate the database prefix was set up correctly.
           $this->setupDatabasePrefix = TRUE;
+        }
         /**
          * Prepares the current environment for running the test.
+         *
          * Backups various current environment variables and resets them, so they do
          * not interfere with the Drupal site installation in which tests are executed
          * and can be restored in tearDown().
+         *
          * Also sets up new resources for the testing environment, such as the public
          * filesystem and configuration directories.
+         *
          * @see DrupalWebTestCase::setUp()
          * @see DrupalWebTestCase::tearDown()
          */
         protected function prepareEnvironment() {
           global $user, $language, $conf;
           // Store necessary current values before switching to prefixed database.
           $this->originalLanguage = $language;
           $this->originalLanguageDefault = variable_get('language_default');
           $this->originalFileDirectory = variable_get('file_public_path', conf_path() . '/files');
           $this->originalProfile = drupal_get_profile();
           $this->originalCleanUrl = variable_get('clean_url', 0);
           $this->originalUser = $user;
           // Set to English to prevent exceptions from utf8_truncate() from t()
           // during install if the current language is not 'en'.
           // The following array/object conversion is copied from language_default().
           $language = (object) array('language' => 'en', 'name' => 'English', 'native' => 'English', 'direction' => 0, 'enabled' => 1, 'plurals' => 0, 'formula' => '', 'domain' => '', 'prefix' => '', 'weight' => 0, 'javascript' => '');
           // Save and clean the shutdown callbacks array because it is static cached
           // and will be changed by the test run. Otherwise it will contain callbacks
           // from both environments and the testing environment will try to call the
           // handlers defined by the original one.
           $callbacks = &drupal_register_shutdown_function();
           $this->originalShutdownCallbacks = $callbacks;
           $callbacks = array();
           // Create test directory ahead of installation so fatal errors and debug
           // information can be logged during installation process.
           // Use temporary files directory with the same prefix as the database.
           $this->public_files_directory = $this->originalFileDirectory . '/simpletest/' . substr($this->databasePrefix, 10);
           $this->private_files_directory = $this->public_files_directory . '/private';
           $this->temp_files_directory = $this->private_files_directory . '/temp';
           // Create the directories
           file_prepare_directory($this->public_files_directory, FILE_CREATE_DIRECTORY | FILE_MODIFY_PERMISSIONS);
           file_prepare_directory($this->private_files_directory, FILE_CREATE_DIRECTORY);
           file_prepare_directory($this->temp_files_directory, FILE_CREATE_DIRECTORY);
           $this->generatedTestFiles = FALSE;
           // Log fatal errors.
           ini_set('log_errors', 1);
           ini_set('error_log', $this->public_files_directory . '/error.log');
           // Set the test information for use in other parts of Drupal.
           $test_info = &$GLOBALS['drupal_test_info'];
           $test_info['test_run_id'] = $this->databasePrefix;
           $test_info['in_child_site'] = FALSE;
           // Indicate the environment was set up correctly.
           $this->setupEnvironment = TRUE;
+        }
         /**
          * Sets up a Drupal site for running functional and integration tests.
+         *
          * Generates a random database prefix and installs Drupal with the specified
          * installation profile in DrupalWebTestCase::$profile into the
          * prefixed database. Afterwards, installs any additional modules specified by
          * the test.
+         *
          * After installation all caches are flushed and several configuration values
          * are reset to the values of the parent site executing the test, since the
          * default values may be incompatible with the environment in which tests are
          * being executed.
+         *
          * @param ...
          *   List of modules to enable for the duration of the test. This can be
          *   either a single array or a variable number of string arguments.
+         *
          * @see DrupalWebTestCase::prepareDatabasePrefix()
          * @see DrupalWebTestCase::changeDatabasePrefix()
          * @see DrupalWebTestCase::prepareEnvironment()
          */
         protected function setUp() {
           global $user, $language, $conf;
           // Create the database prefix for this test.
           $this->prepareDatabasePrefix();
           // Prepare the environment for running tests.
           $this->prepareEnvironment();
           if (!$this->setupEnvironment) {
             return FALSE;
+          }
           // Reset all statics and variables to perform tests in a clean environment.
           $conf = array();
           drupal_static_reset();
           // Change the database prefix.
           // All static variables need to be reset before the database prefix is
           // changed, since DrupalCacheArray implementations attempt to
           // write back to persistent caches when they are destructed.
           $this->changeDatabasePrefix();
           if (!$this->setupDatabasePrefix) {
             return FALSE;
+          }
           // Preset the 'install_profile' system variable, so the first call into
           // system_rebuild_module_data() (in drupal_install_system()) will register
           // the test's profile as a module. Without this, the installation profile of
           // the parent site (executing the test) is registered, and the test
           // profile's hook_install() and other hook implementations are never invoked.
           $conf['install_profile'] = $this->profile;
           // Perform the actual Drupal installation.
           include_once DRUPAL_ROOT . '/includes/install.inc';
           drupal_install_system();
           $this->preloadRegistry();
           // Set path variables.
           variable_set('file_public_path', $this->public_files_directory);
           variable_set('file_private_path', $this->private_files_directory);
           variable_set('file_temporary_path', $this->temp_files_directory);
           // Set the 'simpletest_parent_profile' variable to add the parent profile's
           // search path to the child site's search paths.
           // @see drupal_system_listing()
           // @todo This may need to be primed like 'install_profile' above.
           variable_set('simpletest_parent_profile', $this->originalProfile);
           // Include the testing profile.
           variable_set('install_profile', $this->profile);
           $profile_details = install_profile_info($this->profile, 'en');
           // Install the modules specified by the testing profile.
           module_enable($profile_details['dependencies'], FALSE);
           // Install modules needed for this test. This could have been passed in as
           // either a single array argument or a variable number of string arguments.
           // @todo Remove this compatibility layer in Drupal 8, and only accept
           // $modules as a single array argument.
           $modules = func_get_args();
           if (isset($modules[0]) && is_array($modules[0])) {
             $modules = $modules[0];
+          }
           if ($modules) {
             $success = module_enable($modules, TRUE);
             $this->assertTrue($success, t('Enabled modules: %modules', array('%modules' => implode(', ', $modules))));
+          }
           // Run the profile tasks.
           $install_profile_module_exists = db_query("SELECT 1 FROM {system} WHERE type = 'module' AND name = :name", array(
             ':name' => $this->profile,
           ))->fetchField();
           if ($install_profile_module_exists) {
             module_enable(array($this->profile), FALSE);
+          }
           // Reset/rebuild all data structures after enabling the modules.
           $this->resetAll();
           // Run cron once in that environment, as install.php does at the end of
           // the installation process.
           drupal_cron_run();
           // Ensure that the session is not written to the new environment and replace
           // the global $user session with uid 1 from the new test site.
           drupal_save_session(FALSE);
           // Login as uid 1.
           $user = user_load(1);
           // Restore necessary variables.
           variable_set('install_task', 'done');
           variable_set('clean_url', $this->originalCleanUrl);
           variable_set('site_mail', 'simpletest@example.com');
           variable_set('date_default_timezone', date_default_timezone_get());
           // Set up English language.
           unset($conf['language_default']);
           $language = language_default();
           // Use the test mail class instead of the default mail handler class.
           variable_set('mail_system', array('default-system' => 'TestingMailSystem'));
           drupal_set_time_limit($this->timeLimit);
           $this->setup = TRUE;
+        }
         /**
          * Preload the registry from the testing site.
+         *
          * This method is called by DrupalWebTestCase::setUp(), and preloads the
          * registry from the testing site to cut down on the time it takes to
          * set up a clean environment for the current test run.
          */
         protected function preloadRegistry() {
           // Use two separate queries, each with their own connections: copy the
           // {registry} and {registry_file} tables over from the parent installation
           // to the child installation.
           $original_connection = Database::getConnection('default', 'simpletest_original_default');
           $test_connection = Database::getConnection();
           foreach (array('registry', 'registry_file') as $table) {
             // Find the records from the parent database.
             $source_query = $original_connection
               ->select($table, array(), array('fetch' => PDO::FETCH_ASSOC))
               ->fields($table);
             $dest_query = $test_connection->insert($table);
             $first = TRUE;
             foreach ($source_query->execute() as $row) {
               if ($first) {
                 $dest_query->fields(array_keys($row));
                 $first = FALSE;
+              }
               // Insert the records into the child database.
               $dest_query->values($row);
+            }
             $dest_query->execute();
+          }
+        }
         /**
          * Reset all data structures after having enabled new modules.
+         *
          * This method is called by DrupalWebTestCase::setUp() after enabling
          * the requested modules. It must be called again when additional modules
          * are enabled later.
          */
         protected function resetAll() {
           // Reset all static variables.
           drupal_static_reset();
           // Reset the list of enabled modules.
           module_list(TRUE);
           // Reset cached schema for new database prefix. This must be done before
           // drupal_flush_all_caches() so rebuilds can make use of the schema of
           // modules enabled on the cURL side.
           drupal_get_schema(NULL, TRUE);
           // Perform rebuilds and flush remaining caches.
           drupal_flush_all_caches();
           // Reload global $conf array and permissions.
           $this->refreshVariables();
           $this->checkPermissions(array(), TRUE);
+        }
         /**
          * Refresh the in-memory set of variables. Useful after a page request is made
          * that changes a variable in a different thread.
+         *
          * In other words calling a settings page with $this->drupalPost() with a changed
          * value would update a variable to reflect that change, but in the thread that
          * made the call (thread running the test) the changed variable would not be
          * picked up.
+         *
          * This method clears the variables cache and loads a fresh copy from the database
          * to ensure that the most up-to-date set of variables is loaded.
          */
         protected function refreshVariables() {
           global $conf;
           cache_clear_all('variables', 'cache_bootstrap');
           $conf = variable_initialize();
+        }
         /**
          * Delete created files and temporary files directory, delete the tables created by setUp(),
          * and reset the database prefix.
          */
         protected function tearDown() {
           global $user, $language;
           // In case a fatal error occurred that was not in the test process read the
           // log to pick up any fatal errors.
           simpletest_log_read($this->testId, $this->databasePrefix, get_class($this), TRUE);
           $emailCount = count(variable_get('drupal_test_email_collector', array()));
           if ($emailCount) {
             $message = format_plural($emailCount, '1 e-mail was sent during this test.', '@count e-mails were sent during this test.');
             $this->pass($message, t('E-mail'));
+          }
           // Delete temporary files directory.
           file_unmanaged_delete_recursive($this->originalFileDirectory . '/simpletest/' . substr($this->databasePrefix, 10));
           // Remove all prefixed tables.
           $tables = db_find_tables($this->databasePrefix . '%');
           $connection_info = Database::getConnectionInfo('default');
           $tables = db_find_tables($connection_info['default']['prefix']['default'] . '%');
           if (empty($tables)) {
             $this->fail('Failed to find test tables to drop.');
+          }
           $prefix_length = strlen($connection_info['default']['prefix']['default']);
           foreach ($tables as $table) {
             if (db_drop_table(substr($table, $prefix_length))) {
               unset($tables[$table]);
+            }
+          }
           if (!empty($tables)) {
             $this->fail('Failed to drop all prefixed tables.');
+          }
           // Get back to the original connection.
           Database::removeConnection('default');
           Database::renameConnection('simpletest_original_default', 'default');
           // Restore original shutdown callbacks array to prevent original
           // environment of calling handlers from test run.
           $callbacks = &drupal_register_shutdown_function();
           $callbacks = $this->originalShutdownCallbacks;
           // Return the user to the original one.
           $user = $this->originalUser;
           drupal_save_session(TRUE);
           // Ensure that internal logged in variable and cURL options are reset.
           $this->loggedInUser = FALSE;
           $this->additionalCurlOptions = array();
           // Reload module list and implementations to ensure that test module hooks
           // aren't called after tests.
           module_list(TRUE);
           module_implements('', FALSE, TRUE);
           // Reset the Field API.
           field_cache_clear();
           // Rebuild caches.
           $this->refreshVariables();
           // Reset public files directory.
           $GLOBALS['conf']['file_public_path'] = $this->originalFileDirectory;
           // Reset language.
           $language = $this->originalLanguage;
           if ($this->originalLanguageDefault) {
             $GLOBALS['conf']['language_default'] = $this->originalLanguageDefault;
+          }
           // Close the CURL handler.
           $this->curlClose();
+        }
         /**
          * Initializes the cURL connection.
+         *
          * If the simpletest_httpauth_credentials variable is set, this function will
          * add HTTP authentication headers. This is necessary for testing sites that
          * are protected by login credentials from public access.
          * See the description of $curl_options for other options.
          */
         protected function curlInitialize() {
           global $base_url;
           if (!isset($this->curlHandle)) {
             $this->curlHandle = curl_init();
             // Some versions/configurations of cURL break on a NULL cookie jar, so
             // supply a real file.
             if (empty($this->cookieFile)) {
               $this->cookieFile = $this->public_files_directory . '/cookie.jar';
+            }
             $curl_options = array(
               CURLOPT_COOKIEJAR => $this->cookieFile,
               CURLOPT_URL => $base_url,
               CURLOPT_FOLLOWLOCATION => FALSE,
               CURLOPT_RETURNTRANSFER => TRUE,
               CURLOPT_SSL_VERIFYPEER => FALSE, // Required to make the tests run on HTTPS.
               CURLOPT_SSL_VERIFYHOST => FALSE, // Required to make the tests run on HTTPS.
               CURLOPT_HEADERFUNCTION => array(&$this, 'curlHeaderCallback'),
               CURLOPT_USERAGENT => $this->databasePrefix,
             );
             if (isset($this->httpauth_credentials)) {
               $curl_options[CURLOPT_HTTPAUTH] = $this->httpauth_method;
               $curl_options[CURLOPT_USERPWD] = $this->httpauth_credentials;
+            }
             // curl_setopt_array() returns FALSE if any of the specified options
             // cannot be set, and stops processing any further options.
             $result = curl_setopt_array($this->curlHandle, $this->additionalCurlOptions + $curl_options);
             if (!$result) {
               throw new Exception('One or more cURL options could not be set.');
+            }
             // By default, the child session name should be the same as the parent.
             $this->session_name = session_name();
+          }
           // We set the user agent header on each request so as to use the current
           // time and a new uniqid.
           if (preg_match('/simpletest\d+/', $this->databasePrefix, $matches)) {
             curl_setopt($this->curlHandle, CURLOPT_USERAGENT, drupal_generate_test_ua($matches[0]));
+          }
+        }
         /**
          * Initializes and executes a cURL request.
+         *
          * @param $curl_options
          *   An associative array of cURL options to set, where the keys are constants
          *   defined by the cURL library. For a list of valid options, see
          *   http://www.php.net/manual/function.curl-setopt.php
          * @param $redirect
          *   FALSE if this is an initial request, TRUE if this request is the result
          *   of a redirect.
+         *
          * @return
          *   The content returned from the call to curl_exec().
+         *
          * @see curlInitialize()
          */
         protected function curlExec($curl_options, $redirect = FALSE) {
           $this->curlInitialize();
           if (!empty($curl_options[CURLOPT_URL])) {
             // Forward XDebug activation if present.
             if (isset($_COOKIE['XDEBUG_SESSION'])) {
               $options = drupal_parse_url($curl_options[CURLOPT_URL]);
               $options += array('query' => array());
               $options['query'] += array('XDEBUG_SESSION_START' => $_COOKIE['XDEBUG_SESSION']);
               $curl_options[CURLOPT_URL] = url($options['path'], $options);
+            }
             // cURL incorrectly handles URLs with a fragment by including the
             // fragment in the request to the server, causing some web servers
             // to reject the request citing "400 - Bad Request". To prevent
             // this, we strip the fragment from the request.
             // TODO: Remove this for Drupal 8, since fixed in curl 7.20.0.
             if (strpos($curl_options[CURLOPT_URL], '#')) {
               $original_url = $curl_options[CURLOPT_URL];
               $curl_options[CURLOPT_URL] = strtok($curl_options[CURLOPT_URL], '#');
+            }
+          }
           $url = empty($curl_options[CURLOPT_URL]) ? curl_getinfo($this->curlHandle, CURLINFO_EFFECTIVE_URL) : $curl_options[CURLOPT_URL];
           if (!empty($curl_options[CURLOPT_POST])) {
             // This is a fix for the Curl library to prevent Expect: 100-continue
             // headers in POST requests, that may cause unexpected HTTP response
             // codes from some webservers (like lighttpd that returns a 417 error
             // code). It is done by setting an empty "Expect" header field that is
             // not overwritten by Curl.
             $curl_options[CURLOPT_HTTPHEADER][] = 'Expect:';
+          }
           curl_setopt_array($this->curlHandle, $this->additionalCurlOptions + $curl_options);
           if (!$redirect) {
             // Reset headers, the session ID and the redirect counter.
             $this->session_id = NULL;
             $this->headers = array();
             $this->redirect_count = 0;
+          }
           $content = curl_exec($this->curlHandle);
           $status = curl_getinfo($this->curlHandle, CURLINFO_HTTP_CODE);
           // cURL incorrectly handles URLs with fragments, so instead of
           // letting cURL handle redirects we take of them ourselves to
           // to prevent fragments being sent to the web server as part
           // of the request.
           // TODO: Remove this for Drupal 8, since fixed in curl 7.20.0.
           if (in_array($status, array(300, 301, 302, 303, 305, 307)) && $this->redirect_count < variable_get('simpletest_maximum_redirects', 5)) {
             if ($this->drupalGetHeader('location')) {
               $this->redirect_count++;
               $curl_options = array();
               $curl_options[CURLOPT_URL] = $this->drupalGetHeader('location');
               $curl_options[CURLOPT_HTTPGET] = TRUE;
               return $this->curlExec($curl_options, TRUE);
+            }
+          }
           $this->drupalSetContent($content, isset($original_url) ? $original_url : curl_getinfo($this->curlHandle, CURLINFO_EFFECTIVE_URL));
           $message_vars = array(
             '!method' => !empty($curl_options[CURLOPT_NOBODY]) ? 'HEAD' : (empty($curl_options[CURLOPT_POSTFIELDS]) ? 'GET' : 'POST'),
             '@url' => isset($original_url) ? $original_url : $url,
             '@status' => $status,
             '!length' => format_size(strlen($this->drupalGetContent()))
           );
           $message = t('!method @url returned @status (!length).', $message_vars);
           $this->assertTrue($this->drupalGetContent() !== FALSE, $message, t('Browser'));
           return $this->drupalGetContent();
+        }
         /**
          * Reads headers and registers errors received from the tested site.
+         *
          * @see _drupal_log_error().
+         *
          * @param $curlHandler
          *   The cURL handler.
          * @param $header
          *   An header.
          */
         protected function curlHeaderCallback($curlHandler, $header) {
           // Header fields can be extended over multiple lines by preceding each
           // extra line with at least one SP or HT. They should be joined on receive.
           // Details are in RFC2616 section 4.
           if ($header[0] == ' ' || $header[0] == "\t") {
             // Normalize whitespace between chucks.
             $this->headers[] = array_pop($this->headers) . ' ' . trim($header);
+          }
           else {
             $this->headers[] = $header;
+          }
           // Errors are being sent via X-Drupal-Assertion-* headers,
           // generated by _drupal_log_error() in the exact form required
           // by DrupalWebTestCase::error().
           if (preg_match('/^X-Drupal-Assertion-[0-9]+: (.*)$/', $header, $matches)) {
             // Call DrupalWebTestCase::error() with the parameters from the header.
             call_user_func_array(array(&$this, 'error'), unserialize(urldecode($matches[1])));
+          }
           // Save cookies.
           if (preg_match('/^Set-Cookie: ([^=]+)=(.+)/', $header, $matches)) {
             $name = $matches[1];
             $parts = array_map('trim', explode(';', $matches[2]));
             $value = array_shift($parts);
             $this->cookies[$name] = array('value' => $value, 'secure' => in_array('secure', $parts));
             if ($name == $this->session_name) {
               if ($value != 'deleted') {
                 $this->session_id = $value;
+              }
               else {
                 $this->session_id = NULL;
+              }
+            }
+          }
           // This is required by cURL.
           return strlen($header);
+        }
         /**
          * Close the cURL handler and unset the handler.
          */
         protected function curlClose() {
           if (isset($this->curlHandle)) {
             curl_close($this->curlHandle);
             unset($this->curlHandle);
+          }
+        }
         /**
          * Parse content returned from curlExec using DOM and SimpleXML.
+         *
          * @return
          *   A SimpleXMLElement or FALSE on failure.
          */
         protected function parse() {
           if (!$this->elements) {
             // DOM can load HTML soup. But, HTML soup can throw warnings, suppress
             // them.
             $htmlDom = new DOMDocument();
             @$htmlDom->loadHTML($this->drupalGetContent());
             if ($htmlDom) {
               $this->pass(t('Valid HTML found on "@path"', array('@path' => $this->getUrl())), t('Browser'));
               // It's much easier to work with simplexml than DOM, luckily enough
               // we can just simply import our DOM tree.
               $this->elements = simplexml_import_dom($htmlDom);
+            }
+          }
           if (!$this->elements) {
             $this->fail(t('Parsed page successfully.'), t('Browser'));
+          }
           return $this->elements;
+        }
         /**
          * Retrieves a Drupal path or an absolute path.
+         *
          * @param $path
          *   Drupal path or URL to load into internal browser
          * @param $options
          *   Options to be forwarded to url().
          * @param $headers
          *   An array containing additional HTTP request headers, each formatted as
          *   "name: value".
          * @return
          *   The retrieved HTML string, also available as $this->drupalGetContent()
          */
         protected function drupalGet($path, array $options = array(), array $headers = array()) {
           $options['absolute'] = TRUE;
           // We re-using a CURL connection here. If that connection still has certain
           // options set, it might change the GET into a POST. Make sure we clear out
           // previous options.
           $out = $this->curlExec(array(CURLOPT_HTTPGET => TRUE, CURLOPT_URL => url($path, $options), CURLOPT_NOBODY => FALSE, CURLOPT_HTTPHEADER => $headers));
           $this->refreshVariables(); // Ensure that any changes to variables in the other thread are picked up.
           // Replace original page output with new output from redirected page(s).
           if ($new = $this->checkForMetaRefresh()) {
             $out = $new;
+          }
           $this->verbose('GET request to: ' . $path .
                          '<hr />Ending URL: ' . $this->getUrl() .
                          '<hr />' . $out);
           return $out;
+        }
         /**
          * Retrieve a Drupal path or an absolute path and JSON decode the result.
          */
         protected function drupalGetAJAX($path, array $options = array(), array $headers = array()) {
           return drupal_json_decode($this->drupalGet($path, $options, $headers));
+        }
         /**
          * Execute a POST request on a Drupal page.
          * It will be done as usual POST request with SimpleBrowser.
+         *
          * @param $path
          *   Location of the post form. Either a Drupal path or an absolute path or
          *   NULL to post to the current page. For multi-stage forms you can set the
          *   path to NULL and have it post to the last received page. Example:
+         *
          *   @code
          *   // First step in form.
          *   $edit = array(...);
          *   $this->drupalPost('some_url', $edit, t('Save'));
+         *
          *   // Second step in form.
          *   $edit = array(...);
          *   $this->drupalPost(NULL, $edit, t('Save'));
          *   @endcode
          * @param  $edit
          *   Field data in an associative array. Changes the current input fields
          *   (where possible) to the values indicated. A checkbox can be set to
          *   TRUE to be checked and FALSE to be unchecked. Note that when a form
          *   contains file upload fields, other fields cannot start with the '@'
          *   character.
+         *
          *   Multiple select fields can be set using name[] and setting each of the
          *   possible values. Example:
          *   @code
          *   $edit = array();
          *   $edit['name[]'] = array('value1', 'value2');
          *   @endcode
          * @param $submit
          *   Value of the submit button whose click is to be emulated. For example,
          *   t('Save'). The processing of the request depends on this value. For
          *   example, a form may have one button with the value t('Save') and another
          *   button with the value t('Delete'), and execute different code depending
          *   on which one is clicked.
+         *
          *   This function can also be called to emulate an Ajax submission. In this
          *   case, this value needs to be an array with the following keys:
          *   - path: A path to submit the form values to for Ajax-specific processing,
          *     which is likely different than the $path parameter used for retrieving
          *     the initial form. Defaults to 'system/ajax'.
          *   - triggering_element: If the value for the 'path' key is 'system/ajax' or
          *     another generic Ajax processing path, this needs to be set to the name
          *     of the element. If the name doesn't identify the element uniquely, then
          *     this should instead be an array with a single key/value pair,
          *     corresponding to the element name and value. The callback for the
          *     generic Ajax processing path uses this to find the #ajax information
          *     for the element, including which specific callback to use for
          *     processing the request.
+         *
          *   This can also be set to NULL in order to emulate an Internet Explorer
          *   submission of a form with a single text field, and pressing ENTER in that
          *   textfield: under these conditions, no button information is added to the
          *   POST data.
          * @param $options
          *   Options to be forwarded to url().
          * @param $headers
          *   An array containing additional HTTP request headers, each formatted as
          *   "name: value".
          * @param $form_html_id
          *   (optional) HTML ID of the form to be submitted. On some pages
          *   there are many identical forms, so just using the value of the submit
          *   button is not enough. For example: 'trigger-node-presave-assign-form'.
          *   Note that this is not the Drupal $form_id, but rather the HTML ID of the
          *   form, which is typically the same thing but with hyphens replacing the
          *   underscores.
          * @param $extra_post
          *   (optional) A string of additional data to append to the POST submission.
          *   This can be used to add POST data for which there are no HTML fields, as
          *   is done by drupalPostAJAX(). This string is literally appended to the
          *   POST data, so it must already be urlencoded and contain a leading "&"
          *   (e.g., "&extra_var1=hello+world&extra_var2=you%26me").
          */
         protected function drupalPost($path, $edit, $submit, array $options = array(), array $headers = array(), $form_html_id = NULL, $extra_post = NULL) {
           $submit_matches = FALSE;
           $ajax = is_array($submit);
           if (isset($path)) {
             $this->drupalGet($path, $options);
+          }
           if ($this->parse()) {
             $edit_save = $edit;
             // Let's iterate over all the forms.
             $xpath = "//form";
             if (!empty($form_html_id)) {
               $xpath .= "[@id='" . $form_html_id . "']";
+            }
             $forms = $this->xpath($xpath);
             foreach ($forms as $form) {
               // We try to set the fields of this form as specified in $edit.
               $edit = $edit_save;
               $post = array();
               $upload = array();
               $submit_matches = $this->handleForm($post, $edit, $upload, $ajax ? NULL : $submit, $form);
               $action = isset($form['action']) ? $this->getAbsoluteUrl((string) $form['action']) : $this->getUrl();
               if ($ajax) {
                 $action = $this->getAbsoluteUrl(!empty($submit['path']) ? $submit['path'] : 'system/ajax');
                 // Ajax callbacks verify the triggering element if necessary, so while
                 // we may eventually want extra code that verifies it in the
                 // handleForm() function, it's not currently a requirement.
                 $submit_matches = TRUE;
+              }
               // We post only if we managed to handle every field in edit and the
               // submit button matches.
               if (!$edit && ($submit_matches || !isset($submit))) {
                 $post_array = $post;
                 if ($upload) {
                   // TODO: cURL handles file uploads for us, but the implementation
                   // is broken. This is a less than elegant workaround. Alternatives
                   // are being explored at #253506.
                   foreach ($upload as $key => $file) {
                     $file = drupal_realpath($file);
                     if ($file && is_file($file)) {
                       // Use the new CurlFile class for file uploads when using PHP
                       // 5.5 or higher.
                       if (class_exists('CurlFile')) {
                         $post[$key] = curl_file_create($file);
+                      }
                       else {
                         $post[$key] = '@' . $file;
+                      }
+                    }
+                  }
+                }
                 else {
                   foreach ($post as $key => $value) {
                     // Encode according to application/x-www-form-urlencoded
                     // Both names and values needs to be urlencoded, according to
                     // http://www.w3.org/TR/html4/interact/forms.html#h-17.13.4.1
                     $post[$key] = urlencode($key) . '=' . urlencode($value);
+                  }
                   $post = implode('&', $post) . $extra_post;
+                }
                 $out = $this->curlExec(array(CURLOPT_URL => $action, CURLOPT_POST => TRUE, CURLOPT_POSTFIELDS => $post, CURLOPT_HTTPHEADER => $headers));
                 // Ensure that any changes to variables in the other thread are picked up.
                 $this->refreshVariables();
                 // Replace original page output with new output from redirected page(s).
                 if ($new = $this->checkForMetaRefresh()) {
                   $out = $new;
+                }
                 $this->verbose('POST request to: ' . $path .
                                '<hr />Ending URL: ' . $this->getUrl() .
                                '<hr />Fields: ' . highlight_string('<?php ' . var_export($post_array, TRUE), TRUE) .
                                '<hr />' . $out);
                 return $out;
+              }
+            }
             // We have not found a form which contained all fields of $edit.
             foreach ($edit as $name => $value) {
               $this->fail(t('Failed to set field @name to @value', array('@name' => $name, '@value' => $value)));
+            }
             if (!$ajax && isset($submit)) {
               $this->assertTrue($submit_matches, t('Found the @submit button', array('@submit' => $submit)));
+            }
             $this->fail(t('Found the requested form fields at @path', array('@path' => $path)));
+          }
+        }
         /**
          * Execute an Ajax submission.
+         *
          * This executes a POST as ajax.js does. It uses the returned JSON data, an
          * array of commands, to update $this->content using equivalent DOM
          * manipulation as is used by ajax.js. It also returns the array of commands.
+         *
          * @param $path
          *   Location of the form containing the Ajax enabled element to test. Can be
          *   either a Drupal path or an absolute path or NULL to use the current page.
          * @param $edit
          *   Field data in an associative array. Changes the current input fields
          *   (where possible) to the values indicated.
          * @param $triggering_element
          *   The name of the form element that is responsible for triggering the Ajax
          *   functionality to test. May be a string or, if the triggering element is
          *   a button, an associative array where the key is the name of the button
          *   and the value is the button label. i.e.) array('op' => t('Refresh')).
          * @param $ajax_path
          *   (optional) Override the path set by the Ajax settings of the triggering
          *   element. In the absence of both the triggering element's Ajax path and
          *   $ajax_path 'system/ajax' will be used.
          * @param $options
          *   (optional) Options to be forwarded to url().
          * @param $headers
          *   (optional) An array containing additional HTTP request headers, each
          *   formatted as "name: value". Forwarded to drupalPost().
          * @param $form_html_id
          *   (optional) HTML ID of the form to be submitted, use when there is more
          *   than one identical form on the same page and the value of the triggering
          *   element is not enough to identify the form. Note this is not the Drupal
          *   ID of the form but rather the HTML ID of the form.
          * @param $ajax_settings
          *   (optional) An array of Ajax settings which if specified will be used in
          *   place of the Ajax settings of the triggering element.
+         *
          * @return
          *   An array of Ajax commands.
+         *
          * @see drupalPost()
          * @see ajax.js
          */
         protected function drupalPostAJAX($path, $edit, $triggering_element, $ajax_path = NULL, array $options = array(), array $headers = array(), $form_html_id = NULL, $ajax_settings = NULL) {
           // Get the content of the initial page prior to calling drupalPost(), since
           // drupalPost() replaces $this->content.
           if (isset($path)) {
             $this->drupalGet($path, $options);
+          }
           $content = $this->content;
           $drupal_settings = $this->drupalSettings;
           // Get the Ajax settings bound to the triggering element.
           if (!isset($ajax_settings)) {
             if (is_array($triggering_element)) {
               $xpath = '//*[@name="' . key($triggering_element) . '" and @value="' . current($triggering_element) . '"]';
+            }
             else {
               $xpath = '//*[@name="' . $triggering_element . '"]';
+            }
             if (isset($form_html_id)) {
               $xpath = '//form[@id="' . $form_html_id . '"]' . $xpath;
+            }
             $element = $this->xpath($xpath);
             $element_id = (string) $element[0]['id'];
             $ajax_settings = $drupal_settings['ajax'][$element_id];
+          }
           // Add extra information to the POST data as ajax.js does.
           $extra_post = '';
           if (isset($ajax_settings['submit'])) {
             foreach ($ajax_settings['submit'] as $key => $value) {
               $extra_post .= '&' . urlencode($key) . '=' . urlencode($value);
+            }
+          }
           foreach ($this->xpath('//*[@id]') as $element) {
             $id = (string) $element['id'];
             $extra_post .= '&' . urlencode('ajax_html_ids[]') . '=' . urlencode($id);
+          }
           if (isset($drupal_settings['ajaxPageState'])) {
             $extra_post .= '&' . urlencode('ajax_page_state[theme]') . '=' . urlencode($drupal_settings['ajaxPageState']['theme']);
             $extra_post .= '&' . urlencode('ajax_page_state[theme_token]') . '=' . urlencode($drupal_settings['ajaxPageState']['theme_token']);
             foreach ($drupal_settings['ajaxPageState']['css'] as $key => $value) {
               $extra_post .= '&' . urlencode("ajax_page_state[css][$key]") . '=1';
+            }
             foreach ($drupal_settings['ajaxPageState']['js'] as $key => $value) {
               $extra_post .= '&' . urlencode("ajax_page_state[js][$key]") . '=1';
+            }
+          }
           // Unless a particular path is specified, use the one specified by the
           // Ajax settings, or else 'system/ajax'.
           if (!isset($ajax_path)) {
             $ajax_path = isset($ajax_settings['url']) ? $ajax_settings['url'] : 'system/ajax';
+          }
           // Submit the POST request.
           $return = drupal_json_decode($this->drupalPost(NULL, $edit, array('path' => $ajax_path, 'triggering_element' => $triggering_element), $options, $headers, $form_html_id, $extra_post));
           $this->assertIdentical($this->drupalGetHeader('X-Drupal-Ajax-Token'), '1', 'Ajax response header found.');
           // Change the page content by applying the returned commands.
           if (!empty($ajax_settings) && !empty($return)) {
             // ajax.js applies some defaults to the settings object, so do the same
             // for what's used by this function.
             $ajax_settings += array(
               'method' => 'replaceWith',
             );
             // DOM can load HTML soup. But, HTML soup can throw warnings, suppress
             // them.
             $dom = new DOMDocument();
             @$dom->loadHTML($content);
             // XPath allows for finding wrapper nodes better than DOM does.
             $xpath = new DOMXPath($dom);
             foreach ($return as $command) {
               switch ($command['command']) {
                 case 'settings':
                   $drupal_settings = drupal_array_merge_deep($drupal_settings, $command['settings']);
                   break;
                 case 'insert':
                   $wrapperNode = NULL;
                   // When a command doesn't specify a selector, use the
                   // #ajax['wrapper'] which is always an HTML ID.
                   if (!isset($command['selector'])) {
                     $wrapperNode = $xpath->query('//*[@id="' . $ajax_settings['wrapper'] . '"]')->item(0);
+                  }
                   // @todo Ajax commands can target any jQuery selector, but these are
                   //   hard to fully emulate with XPath. For now, just handle 'head'
                   //   and 'body', since these are used by ajax_render().
                   elseif (in_array($command['selector'], array('head', 'body'))) {
                     $wrapperNode = $xpath->query('//' . $command['selector'])->item(0);
+                  }
                   if ($wrapperNode) {
                     // ajax.js adds an enclosing DIV to work around a Safari bug.
                     $newDom = new DOMDocument();
                     // DOM can load HTML soup. But, HTML soup can throw warnings,
                     // suppress them.
                     $newDom->loadHTML('<div>' . $command['data'] . '</div>');
                     // Suppress warnings thrown when duplicate HTML IDs are
                     // encountered. This probably means we are replacing an element
                     // with the same ID.
                     $newNode = @$dom->importNode($newDom->documentElement->firstChild->firstChild, TRUE);
                     $method = isset($command['method']) ? $command['method'] : $ajax_settings['method'];
                     // The "method" is a jQuery DOM manipulation function. Emulate
                     // each one using PHP's DOMNode API.
                     switch ($method) {
                       case 'replaceWith':
                         $wrapperNode->parentNode->replaceChild($newNode, $wrapperNode);
                         break;
                       case 'append':
                         $wrapperNode->appendChild($newNode);
                         break;
                       case 'prepend':
                         // If no firstChild, insertBefore() falls back to
                         // appendChild().
                         $wrapperNode->insertBefore($newNode, $wrapperNode->firstChild);
                         break;
                       case 'before':
                         $wrapperNode->parentNode->insertBefore($newNode, $wrapperNode);
                         break;
                       case 'after':
                         // If no nextSibling, insertBefore() falls back to
                         // appendChild().
                         $wrapperNode->parentNode->insertBefore($newNode, $wrapperNode->nextSibling);
                         break;
                       case 'html':
                         foreach ($wrapperNode->childNodes as $childNode) {
                           $wrapperNode->removeChild($childNode);
+                        }
                         $wrapperNode->appendChild($newNode);
                         break;
+                    }
+                  }
                   break;
                 case 'updateBuildId':
                   $buildId = $xpath->query('//input[@name="form_build_id" and @value="' . $command['old'] . '"]')->item(0);
                   if ($buildId) {
                     $buildId->setAttribute('value', $command['new']);
+                  }
                   break;
                 // @todo Add suitable implementations for these commands in order to
                 //   have full test coverage of what ajax.js can do.
                 case 'remove':
                   break;
                 case 'changed':
                   break;
                 case 'css':
                   break;
                 case 'data':
                   break;
                 case 'restripe':
                   break;
                 case 'add_css':
                   break;
+              }
+            }
             $content = $dom->saveHTML();
+          }
           $this->drupalSetContent($content);
           $this->drupalSetSettings($drupal_settings);
           $verbose = 'AJAX POST request to: ' . $path;
           $verbose .= '<br />AJAX callback path: ' . $ajax_path;
           $verbose .= '<hr />Ending URL: ' . $this->getUrl();
           $verbose .= '<hr />' . $this->content;
           $this->verbose($verbose);
           return $return;
+        }
         /**
          * Runs cron in the Drupal installed by Simpletest.
          */
         protected function cronRun() {
           $this->drupalGet($GLOBALS['base_url'] . '/cron.php', array('external' => TRUE, 'query' => array('cron_key' => variable_get('cron_key', 'drupal'))));
+        }
         /**
          * Check for meta refresh tag and if found call drupalGet() recursively. This
          * function looks for the http-equiv attribute to be set to "Refresh"
          * and is case-sensitive.
+         *
          * @return
          *   Either the new page content or FALSE.
          */
         protected function checkForMetaRefresh() {
           if (strpos($this->drupalGetContent(), '<meta ') && $this->parse()) {
             $refresh = $this->xpath('//meta[@http-equiv="Refresh"]');
             if (!empty($refresh)) {
               // Parse the content attribute of the meta tag for the format:
               // "[delay]: URL=[page_to_redirect_to]".
               if (preg_match('/\d+;\s*URL=(?P<url>.*)/i', $refresh[0]['content'], $match)) {
                 return $this->drupalGet($this->getAbsoluteUrl(decode_entities($match['url'])));
+              }
+            }
+          }
           return FALSE;
+        }
         /**
          * Retrieves only the headers for a Drupal path or an absolute path.
+         *
          * @param $path
          *   Drupal path or URL to load into internal browser
          * @param $options
          *   Options to be forwarded to url().
          * @param $headers
          *   An array containing additional HTTP request headers, each formatted as
          *   "name: value".
          * @return
          *   The retrieved headers, also available as $this->drupalGetContent()
          */
         protected function drupalHead($path, array $options = array(), array $headers = array()) {
           $options['absolute'] = TRUE;
           $out = $this->curlExec(array(CURLOPT_NOBODY => TRUE, CURLOPT_URL => url($path, $options), CURLOPT_HTTPHEADER => $headers));
           $this->refreshVariables(); // Ensure that any changes to variables in the other thread are picked up.
           return $out;
+        }
         /**
          * Handle form input related to drupalPost(). Ensure that the specified fields
          * exist and attempt to create POST data in the correct manner for the particular
          * field type.
+         *
          * @param $post
          *   Reference to array of post values.
          * @param $edit
          *   Reference to array of edit values to be checked against the form.
          * @param $submit
          *   Form submit button value.
          * @param $form
          *   Array of form elements.
          * @return
          *   Submit value matches a valid submit input in the form.
          */
         protected function handleForm(&$post, &$edit, &$upload, $submit, $form) {
           // Retrieve the form elements.
           $elements = $form->xpath('.//input[not(@disabled)]|.//textarea[not(@disabled)]|.//select[not(@disabled)]');
           $submit_matches = FALSE;
           foreach ($elements as $element) {
             // SimpleXML objects need string casting all the time.
             $name = (string) $element['name'];
             // This can either be the type of <input> or the name of the tag itself
             // for <select> or <textarea>.
             $type = isset($element['type']) ? (string) $element['type'] : $element->getName();
             $value = isset($element['value']) ? (string) $element['value'] : '';
             $done = FALSE;
             if (isset($edit[$name])) {
               switch ($type) {
                 case 'text':
                 case 'tel':
                 case 'textarea':
                 case 'url':
                 case 'number':
                 case 'range':
                 case 'color':
                 case 'hidden':
                 case 'password':
                 case 'email':
                 case 'search':
                   $post[$name] = $edit[$name];
                   unset($edit[$name]);
                   break;
                 case 'radio':
                   if ($edit[$name] == $value) {
                     $post[$name] = $edit[$name];
                     unset($edit[$name]);
+                  }
                   break;
                 case 'checkbox':
                   // To prevent checkbox from being checked.pass in a FALSE,
                   // otherwise the checkbox will be set to its value regardless
                   // of $edit.
                   if ($edit[$name] === FALSE) {
                     unset($edit[$name]);
                     continue 2;
+                  }
                   else {
                     unset($edit[$name]);
                     $post[$name] = $value;
+                  }
                   break;
                 case 'select':
                   $new_value = $edit[$name];
                   $options = $this->getAllOptions($element);
                   if (is_array($new_value)) {
                     // Multiple select box.
                     if (!empty($new_value)) {
                       $index = 0;
                       $key = preg_replace('/\[\]$/', '', $name);
                       foreach ($options as $option) {
                         $option_value = (string) $option['value'];
                         if (in_array($option_value, $new_value)) {
                           $post[$key . '[' . $index++ . ']'] = $option_value;
                           $done = TRUE;
                           unset($edit[$name]);
+                        }
+                      }
+                    }
                     else {
                       // No options selected: do not include any POST data for the
                       // element.
                       $done = TRUE;
                       unset($edit[$name]);
+                    }
+                  }
                   else {
                     // Single select box.
                     foreach ($options as $option) {
                       if ($new_value == $option['value']) {
                         $post[$name] = $new_value;
                         unset($edit[$name]);
                         $done = TRUE;
                         break;
+                      }
+                    }
+                  }
                   break;
                 case 'file':
                   $upload[$name] = $edit[$name];
                   unset($edit[$name]);
                   break;
+              }
+            }
             if (!isset($post[$name]) && !$done) {
               switch ($type) {
                 case 'textarea':
                   $post[$name] = (string) $element;
                   break;
                 case 'select':
                   $single = empty($element['multiple']);
                   $first = TRUE;
                   $index = 0;
                   $key = preg_replace('/\[\]$/', '', $name);
                   $options = $this->getAllOptions($element);
                   foreach ($options as $option) {
                     // For single select, we load the first option, if there is a
                     // selected option that will overwrite it later.
                     if ($option['selected'] || ($first && $single)) {
                       $first = FALSE;
                       if ($single) {
                         $post[$name] = (string) $option['value'];
+                      }
                       else {
                         $post[$key . '[' . $index++ . ']'] = (string) $option['value'];
+                      }
+                    }
+                  }
                   break;
                 case 'file':
                   break;
                 case 'submit':
                 case 'image':
                   if (isset($submit) && $submit == $value) {
                     $post[$name] = $value;
                     $submit_matches = TRUE;
+                  }
                   break;
                 case 'radio':
                 case 'checkbox':
                   if (!isset($element['checked'])) {
                     break;
+                  }
                   // Deliberate no break.
                 default:
                   $post[$name] = $value;
+              }
+            }
+          }
           return $submit_matches;
+        }
         /**
          * Builds an XPath query.
+         *
          * Builds an XPath query by replacing placeholders in the query by the value
          * of the arguments.
+         *
          * XPath 1.0 (the version supported by libxml2, the underlying XML library
          * used by PHP) doesn't support any form of quotation. This function
          * simplifies the building of XPath expression.
+         *
          * @param $xpath
          *   An XPath query, possibly with placeholders in the form ':name'.
          * @param $args
          *   An array of arguments with keys in the form ':name' matching the
          *   placeholders in the query. The values may be either strings or numeric
          *   values.
          * @return
          *   An XPath query with arguments replaced.
          */
         protected function buildXPathQuery($xpath, array $args = array()) {
           // Replace placeholders.
           foreach ($args as $placeholder => $value) {
             // XPath 1.0 doesn't support a way to escape single or double quotes in a
             // string literal. We split double quotes out of the string, and encode
             // them separately.
             if (is_string($value)) {
               // Explode the text at the quote characters.
               $parts = explode('"', $value);
               // Quote the parts.
               foreach ($parts as &$part) {
                 $part = '"' . $part . '"';
+              }
               // Return the string.
               $value = count($parts) > 1 ? 'concat(' . implode(', \'"\', ', $parts) . ')' : $parts[0];
+            }
             $xpath = preg_replace('/' . preg_quote($placeholder) . '\b/', $value, $xpath);
+          }
           return $xpath;
+        }
         /**
          * Perform an xpath search on the contents of the internal browser. The search
          * is relative to the root element (HTML tag normally) of the page.
+         *
          * @param $xpath
          *   The xpath string to use in the search.
          * @param array $arguments
          *   An array of arguments with keys in the form ':name' matching the
          *   placeholders in the query. The values may be either strings or numeric
          *   values.
+         *
          * @return
          *   The return value of the xpath search. For details on the xpath string
          *   format and return values see the SimpleXML documentation,
          *   http://us.php.net/manual/function.simplexml-element-xpath.php.
          */
         protected function xpath($xpath, array $arguments = array()) {
           if ($this->parse()) {
             $xpath = $this->buildXPathQuery($xpath, $arguments);
             $result = $this->elements->xpath($xpath);
             // Some combinations of PHP / libxml versions return an empty array
             // instead of the documented FALSE. Forcefully convert any falsish values
             // to an empty array to allow foreach(...) constructions.
             return $result ? $result : array();
+          }
           else {
             return FALSE;
+          }
+        }
         /**
          * Get all option elements, including nested options, in a select.
+         *
          * @param $element
          *   The element for which to get the options.
          * @return
          *   Option elements in select.
          */
         protected function getAllOptions(SimpleXMLElement $element) {
           $options = array();
           // Add all options items.
           foreach ($element->option as $option) {
             $options[] = $option;
+          }
           // Search option group children.
           if (isset($element->optgroup)) {
             foreach ($element->optgroup as $group) {
               $options = array_merge($options, $this->getAllOptions($group));
+            }
+          }
           return $options;
+        }
         /**
          * Pass if a link with the specified label is found, and optional with the
          * specified index.
+         *
          * @param $label
          *   Text between the anchor tags.
          * @param $index
          *   Link position counting from zero.
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to, defaults to 'Other'.
          * @return
          *   TRUE if the assertion succeeded, FALSE otherwise.
          */
         protected function assertLink($label, $index = 0, $message = '', $group = 'Other') {
           $links = $this->xpath('//a[normalize-space(text())=:label]', array(':label' => $label));
           $message = ($message ?  $message : t('Link with label %label found.', array('%label' => $label)));
           return $this->assert(isset($links[$index]), $message, $group);
+        }
         /**
          * Pass if a link with the specified label is not found.
+         *
          * @param $label
          *   Text between the anchor tags.
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to, defaults to 'Other'.
          * @return
          *   TRUE if the assertion succeeded, FALSE otherwise.
          */
         protected function assertNoLink($label, $message = '', $group = 'Other') {
           $links = $this->xpath('//a[normalize-space(text())=:label]', array(':label' => $label));
           $message = ($message ?  $message : t('Link with label %label not found.', array('%label' => $label)));
           return $this->assert(empty($links), $message, $group);
+        }
         /**
          * Pass if a link containing a given href (part) is found.
+         *
          * @param $href
          *   The full or partial value of the 'href' attribute of the anchor tag.
          * @param $index
          *   Link position counting from zero.
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to, defaults to 'Other'.
+         *
          * @return
          *   TRUE if the assertion succeeded, FALSE otherwise.
          */
         protected function assertLinkByHref($href, $index = 0, $message = '', $group = 'Other') {
           $links = $this->xpath('//a[contains(@href, :href)]', array(':href' => $href));
           $message = ($message ?  $message : t('Link containing href %href found.', array('%href' => $href)));
           return $this->assert(isset($links[$index]), $message, $group);
+        }
         /**
          * Pass if a link containing a given href (part) is not found.
+         *
          * @param $href
          *   The full or partial value of the 'href' attribute of the anchor tag.
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to, defaults to 'Other'.
+         *
          * @return
          *   TRUE if the assertion succeeded, FALSE otherwise.
          */
         protected function assertNoLinkByHref($href, $message = '', $group = 'Other') {
           $links = $this->xpath('//a[contains(@href, :href)]', array(':href' => $href));
           $message = ($message ?  $message : t('No link containing href %href found.', array('%href' => $href)));
           return $this->assert(empty($links), $message, $group);
+        }
         /**
          * Follows a link by name.
+         *
          * Will click the first link found with this link text by default, or a later
          * one if an index is given. Match is case sensitive with normalized space.
          * The label is translated label.
+         *
          * If the link is discovered and clicked, the test passes. Fail otherwise.
+         *
          * @param $label
          *   Text between the anchor tags.
          * @param $index
          *   Link position counting from zero.
          * @return
          *   Page contents on success, or FALSE on failure.
          */
         protected function clickLink($label, $index = 0) {
           $url_before = $this->getUrl();
           $urls = $this->xpath('//a[normalize-space(text())=:label]', array(':label' => $label));
           if (isset($urls[$index])) {
             $url_target = $this->getAbsoluteUrl($urls[$index]['href']);
             $this->pass(t('Clicked link %label (@url_target) from @url_before', array('%label' => $label, '@url_target' => $url_target, '@url_before' => $url_before)), 'Browser');
             return $this->drupalGet($url_target);
+          }
           $this->fail(t('Link %label does not exist on @url_before', array('%label' => $label, '@url_before' => $url_before)), 'Browser');
           return FALSE;
+        }
         /**
          * Takes a path and returns an absolute path.
+         *
          * @param $path
          *   A path from the internal browser content.
          * @return
          *   The $path with $base_url prepended, if necessary.
          */
         protected function getAbsoluteUrl($path) {
           global $base_url, $base_path;
           $parts = parse_url($path);
           if (empty($parts['host'])) {
             // Ensure that we have a string (and no xpath object).
             $path = (string) $path;
             // Strip $base_path, if existent.
             $length = strlen($base_path);
             if (substr($path, 0, $length) === $base_path) {
               $path = substr($path, $length);
+            }
             // Ensure that we have an absolute path.
             if ($path[0] !== '/') {
               $path = '/' . $path;
+            }
             // Finally, prepend the $base_url.
             $path = $base_url . $path;
+          }
           return $path;
+        }
         /**
          * Get the current URL from the cURL handler.
+         *
          * @return
          *   The current URL.
          */
         protected function getUrl() {
           return $this->url;
+        }
         /**
          * Gets the HTTP response headers of the requested page. Normally we are only
          * interested in the headers returned by the last request. However, if a page
          * is redirected or HTTP authentication is in use, multiple requests will be
          * required to retrieve the page. Headers from all requests may be requested
          * by passing TRUE to this function.
+         *
          * @param $all_requests
          *   Boolean value specifying whether to return headers from all requests
          *   instead of just the last request. Defaults to FALSE.
          * @return
          *   A name/value array if headers from only the last request are requested.
          *   If headers from all requests are requested, an array of name/value
          *   arrays, one for each request.
+         *
          *   The pseudonym ":status" is used for the HTTP status line.
+         *
          *   Values for duplicate headers are stored as a single comma-separated list.
          */
         protected function drupalGetHeaders($all_requests = FALSE) {
           $request = 0;
           $headers = array($request => array());
           foreach ($this->headers as $header) {
             $header = trim($header);
             if ($header === '') {
               $request++;
+            }
             else {
               if (strpos($header, 'HTTP/') === 0) {
                 $name = ':status';
                 $value = $header;
+              }
               else {
                 list($name, $value) = explode(':', $header, 2);
                 $name = strtolower($name);
+              }
               if (isset($headers[$request][$name])) {
                 $headers[$request][$name] .= ',' . trim($value);
+              }
               else {
                 $headers[$request][$name] = trim($value);
+              }
+            }
+          }
           if (!$all_requests) {
             $headers = array_pop($headers);
+          }
           return $headers;
+        }
         /**
          * Gets the value of an HTTP response header. If multiple requests were
          * required to retrieve the page, only the headers from the last request will
          * be checked by default. However, if TRUE is passed as the second argument,
          * all requests will be processed from last to first until the header is
          * found.
+         *
          * @param $name
          *   The name of the header to retrieve. Names are case-insensitive (see RFC
          *   2616 section 4.2).
          * @param $all_requests
          *   Boolean value specifying whether to check all requests if the header is
          *   not found in the last request. Defaults to FALSE.
          * @return
          *   The HTTP header value or FALSE if not found.
          */
         protected function drupalGetHeader($name, $all_requests = FALSE) {
           $name = strtolower($name);
           $header = FALSE;
           if ($all_requests) {
             foreach (array_reverse($this->drupalGetHeaders(TRUE)) as $headers) {
               if (isset($headers[$name])) {
                 $header = $headers[$name];
                 break;
+              }
+            }
+          }
           else {
             $headers = $this->drupalGetHeaders();
             if (isset($headers[$name])) {
               $header = $headers[$name];
+            }
+          }
           return $header;
+        }
         /**
          * Gets the current raw HTML of requested page.
          */
         protected function drupalGetContent() {
           return $this->content;
+        }
         /**
          * Gets the value of the Drupal.settings JavaScript variable for the currently loaded page.
          */
         protected function drupalGetSettings() {
           return $this->drupalSettings;
+        }
         /**
          * Gets an array containing all e-mails sent during this test case.
+         *
          * @param $filter
          *   An array containing key/value pairs used to filter the e-mails that are returned.
          * @return
          *   An array containing e-mail messages captured during the current test.
          */
         protected function drupalGetMails($filter = array()) {
           $captured_emails = variable_get('drupal_test_email_collector', array());
           $filtered_emails = array();
           foreach ($captured_emails as $message) {
             foreach ($filter as $key => $value) {
               if (!isset($message[$key]) || $message[$key] != $value) {
                 continue 2;
+              }
+            }
             $filtered_emails[] = $message;
+          }
           return $filtered_emails;
+        }
         /**
          * Sets the raw HTML content. This can be useful when a page has been fetched
          * outside of the internal browser and assertions need to be made on the
          * returned page.
+         *
          * A good example would be when testing drupal_http_request(). After fetching
          * the page the content can be set and page elements can be checked to ensure
          * that the function worked properly.
          */
         protected function drupalSetContent($content, $url = 'internal:') {
           $this->content = $content;
           $this->url = $url;
           $this->plainTextContent = FALSE;
           $this->elements = FALSE;
           $this->drupalSettings = array();
           if (preg_match('/jQuery\.extend\(Drupal\.settings, (.*?)\);/', $content, $matches)) {
             $this->drupalSettings = drupal_json_decode($matches[1]);
+          }
+        }
         /**
          * Sets the value of the Drupal.settings JavaScript variable for the currently loaded page.
          */
         protected function drupalSetSettings($settings) {
           $this->drupalSettings = $settings;
+        }
         /**
          * Pass if the internal browser's URL matches the given path.
+         *
          * @param $path
          *   The expected system path.
          * @param $options
          *   (optional) Any additional options to pass for $path to url().
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to, defaults to 'Other'.
+         *
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertUrl($path, array $options = array(), $message = '', $group = 'Other') {
           if (!$message) {
             $message = t('Current URL is @url.', array(
               '@url' => var_export(url($path, $options), TRUE),
             ));
+          }
           $options['absolute'] = TRUE;
           return $this->assertEqual($this->getUrl(), url($path, $options), $message, $group);
+        }
         /**
          * Pass if the raw text IS found on the loaded page, fail otherwise. Raw text
          * refers to the raw HTML that the page generated.
+         *
          * @param $raw
          *   Raw (HTML) string to look for.
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to, defaults to 'Other'.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertRaw($raw, $message = '', $group = 'Other') {
           if (!$message) {
             $message = t('Raw "@raw" found', array('@raw' => $raw));
+          }
           return $this->assert(strpos($this->drupalGetContent(), $raw) !== FALSE, $message, $group);
+        }
         /**
          * Pass if the raw text is NOT found on the loaded page, fail otherwise. Raw text
          * refers to the raw HTML that the page generated.
+         *
          * @param $raw
          *   Raw (HTML) string to look for.
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to, defaults to 'Other'.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertNoRaw($raw, $message = '', $group = 'Other') {
           if (!$message) {
             $message = t('Raw "@raw" not found', array('@raw' => $raw));
+          }
           return $this->assert(strpos($this->drupalGetContent(), $raw) === FALSE, $message, $group);
+        }
         /**
          * Pass if the text IS found on the text version of the page. The text version
          * is the equivalent of what a user would see when viewing through a web browser.
          * In other words the HTML has been filtered out of the contents.
+         *
          * @param $text
          *   Plain text to look for.
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to, defaults to 'Other'.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertText($text, $message = '', $group = 'Other') {
           return $this->assertTextHelper($text, $message, $group, FALSE);
+        }
         /**
          * Pass if the text is NOT found on the text version of the page. The text version
          * is the equivalent of what a user would see when viewing through a web browser.
          * In other words the HTML has been filtered out of the contents.
+         *
          * @param $text
          *   Plain text to look for.
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to, defaults to 'Other'.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertNoText($text, $message = '', $group = 'Other') {
           return $this->assertTextHelper($text, $message, $group, TRUE);
+        }
         /**
          * Helper for assertText and assertNoText.
+         *
          * It is not recommended to call this function directly.
+         *
          * @param $text
          *   Plain text to look for.
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to.
          * @param $not_exists
          *   TRUE if this text should not exist, FALSE if it should.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertTextHelper($text, $message = '', $group, $not_exists) {
           if ($this->plainTextContent === FALSE) {
             $this->plainTextContent = filter_xss($this->drupalGetContent(), array());
+          }
           if (!$message) {
             $message = !$not_exists ? t('"@text" found', array('@text' => $text)) : t('"@text" not found', array('@text' => $text));
+          }
           return $this->assert($not_exists == (strpos($this->plainTextContent, $text) === FALSE), $message, $group);
+        }
         /**
          * Pass if the text is found ONLY ONCE on the text version of the page.
+         *
          * The text version is the equivalent of what a user would see when viewing
          * through a web browser. In other words the HTML has been filtered out of
          * the contents.
+         *
          * @param $text
          *   Plain text to look for.
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to, defaults to 'Other'.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertUniqueText($text, $message = '', $group = 'Other') {
           return $this->assertUniqueTextHelper($text, $message, $group, TRUE);
+        }
         /**
          * Pass if the text is found MORE THAN ONCE on the text version of the page.
+         *
          * The text version is the equivalent of what a user would see when viewing
          * through a web browser. In other words the HTML has been filtered out of
          * the contents.
+         *
          * @param $text
          *   Plain text to look for.
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to, defaults to 'Other'.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertNoUniqueText($text, $message = '', $group = 'Other') {
           return $this->assertUniqueTextHelper($text, $message, $group, FALSE);
+        }
         /**
          * Helper for assertUniqueText and assertNoUniqueText.
+         *
          * It is not recommended to call this function directly.
+         *
          * @param $text
          *   Plain text to look for.
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to.
          * @param $be_unique
          *   TRUE if this text should be found only once, FALSE if it should be found more than once.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertUniqueTextHelper($text, $message = '', $group, $be_unique) {
           if ($this->plainTextContent === FALSE) {
             $this->plainTextContent = filter_xss($this->drupalGetContent(), array());
+          }
           if (!$message) {
             $message = '"' . $text . '"' . ($be_unique ? ' found only once' : ' found more than once');
+          }
           $first_occurance = strpos($this->plainTextContent, $text);
           if ($first_occurance === FALSE) {
             return $this->assert(FALSE, $message, $group);
+          }
           $offset = $first_occurance + strlen($text);
           $second_occurance = strpos($this->plainTextContent, $text, $offset);
           return $this->assert($be_unique == ($second_occurance === FALSE), $message, $group);
+        }
         /**
          * Will trigger a pass if the Perl regex pattern is found in the raw content.
+         *
          * @param $pattern
          *   Perl regex to look for including the regex delimiters.
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertPattern($pattern, $message = '', $group = 'Other') {
           if (!$message) {
             $message = t('Pattern "@pattern" found', array('@pattern' => $pattern));
+          }
           return $this->assert((bool) preg_match($pattern, $this->drupalGetContent()), $message, $group);
+        }
         /**
          * Will trigger a pass if the perl regex pattern is not present in raw content.
+         *
          * @param $pattern
          *   Perl regex to look for including the regex delimiters.
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertNoPattern($pattern, $message = '', $group = 'Other') {
           if (!$message) {
             $message = t('Pattern "@pattern" not found', array('@pattern' => $pattern));
+          }
           return $this->assert(!preg_match($pattern, $this->drupalGetContent()), $message, $group);
+        }
         /**
          * Pass if the page title is the given string.
+         *
          * @param $title
          *   The string the title should be.
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertTitle($title, $message = '', $group = 'Other') {
           $actual = (string) current($this->xpath('//title'));
           if (!$message) {
             $message = t('Page title @actual is equal to @expected.', array(
               '@actual' => var_export($actual, TRUE),
               '@expected' => var_export($title, TRUE),
             ));
+          }
           return $this->assertEqual($actual, $title, $message, $group);
+        }
         /**
          * Pass if the page title is not the given string.
+         *
          * @param $title
          *   The string the title should not be.
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertNoTitle($title, $message = '', $group = 'Other') {
           $actual = (string) current($this->xpath('//title'));
           if (!$message) {
             $message = t('Page title @actual is not equal to @unexpected.', array(
               '@actual' => var_export($actual, TRUE),
               '@unexpected' => var_export($title, TRUE),
             ));
+          }
           return $this->assertNotEqual($actual, $title, $message, $group);
+        }
         /**
          * Asserts themed output.
+         *
          * @param $callback
          *   The name of the theme function to invoke; e.g. 'links' for theme_links().
          * @param $variables
          *   (optional) An array of variables to pass to the theme function.
          * @param $expected
          *   The expected themed output string.
          * @param $message
          *   (optional) A message to display with the assertion. Do not translate
          *   messages: use format_string() to embed variables in the message text, not
          *   t(). If left blank, a default message will be displayed.
          * @param $group
          *   (optional) The group this message is in, which is displayed in a column
          *   in test output. Use 'Debug' to indicate this is debugging output. Do not
          *   translate this string. Defaults to 'Other'; most tests do not override
          *   this default.
+         *
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertThemeOutput($callback, array $variables = array(), $expected, $message = '', $group = 'Other') {
           $output = theme($callback, $variables);
           $this->verbose('Variables:' . '<pre>' .  check_plain(var_export($variables, TRUE)) . '</pre>'
             . '<hr />' . 'Result:' . '<pre>' .  check_plain(var_export($output, TRUE)) . '</pre>'
             . '<hr />' . 'Expected:' . '<pre>' .  check_plain(var_export($expected, TRUE)) . '</pre>'
             . '<hr />' . $output
           );
           if (!$message) {
             $message = '%callback rendered correctly.';
+          }
           $message = format_string($message, array('%callback' => 'theme_' . $callback . '()'));
           return $this->assertIdentical($output, $expected, $message, $group);
+        }
         /**
          * Asserts that a field exists in the current page by the given XPath.
+         *
          * @param $xpath
          *   XPath used to find the field.
          * @param $value
          *   (optional) Value of the field to assert. You may pass in NULL (default)
          *   to skip checking the actual value, while still checking that the field
          *   exists.
          * @param $message
          *   (optional) Message to display.
          * @param $group
          *   (optional) The group this message belongs to.
+         *
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertFieldByXPath($xpath, $value = NULL, $message = '', $group = 'Other') {
           $fields = $this->xpath($xpath);
           // If value specified then check array for match.
           $found = TRUE;
           if (isset($value)) {
             $found = FALSE;
             if ($fields) {
               foreach ($fields as $field) {
                 if (isset($field['value']) && $field['value'] == $value) {
                   // Input element with correct value.
                   $found = TRUE;
+                }
                 elseif (isset($field->option)) {
                   // Select element found.
                   if ($this->getSelectedItem($field) == $value) {
                     $found = TRUE;
+                  }
                   else {
                     // No item selected so use first item.
                     $items = $this->getAllOptions($field);
                     if (!empty($items) && $items[0]['value'] == $value) {
                       $found = TRUE;
+                    }
+                  }
+                }
                 elseif ((string) $field == $value) {
                   // Text area with correct text.
                   $found = TRUE;
+                }
+              }
+            }
+          }
           return $this->assertTrue($fields && $found, $message, $group);
+        }
         /**
          * Get the selected value from a select field.
+         *
          * @param $element
          *   SimpleXMLElement select element.
          * @return
          *   The selected value or FALSE.
          */
         protected function getSelectedItem(SimpleXMLElement $element) {
           foreach ($element->children() as $item) {
             if (isset($item['selected'])) {
               return $item['value'];
+            }
             elseif ($item->getName() == 'optgroup') {
               if ($value = $this->getSelectedItem($item)) {
                 return $value;
+              }
+            }
+          }
           return FALSE;
+        }
         /**
          * Asserts that a field doesn't exist or its value doesn't match, by XPath.
+         *
          * @param $xpath
          *   XPath used to find the field.
          * @param $value
          *   (optional) Value for the field, to assert that the field's value on the
          *   page doesn't match it. You may pass in NULL to skip checking the
          *   value, while still checking that the field doesn't exist.
          * @param $message
          *   (optional) Message to display.
          * @param $group
          *   (optional) The group this message belongs to.
+         *
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertNoFieldByXPath($xpath, $value = NULL, $message = '', $group = 'Other') {
           $fields = $this->xpath($xpath);
           // If value specified then check array for match.
           $found = TRUE;
           if (isset($value)) {
             $found = FALSE;
             if ($fields) {
               foreach ($fields as $field) {
                 if ($field['value'] == $value) {
                   $found = TRUE;
+                }
+              }
+            }
+          }
           return $this->assertFalse($fields && $found, $message, $group);
+        }
         /**
          * Asserts that a field exists in the current page with the given name and value.
+         *
          * @param $name
          *   Name of field to assert.
          * @param $value
          *   (optional) Value of the field to assert. You may pass in NULL (default)
          *   to skip checking the actual value, while still checking that the field
          *   exists.
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertFieldByName($name, $value = NULL, $message = NULL) {
           if (!isset($message)) {
             if (!isset($value)) {
               $message = t('Found field with name @name', array(
                 '@name' => var_export($name, TRUE),
               ));
+            }
             else {
               $message = t('Found field with name @name and value @value', array(
                 '@name' => var_export($name, TRUE),
                 '@value' => var_export($value, TRUE),
               ));
+            }
+          }
           return $this->assertFieldByXPath($this->constructFieldXpath('name', $name), $value, $message, t('Browser'));
+        }
         /**
          * Asserts that a field does not exist with the given name and value.
+         *
          * @param $name
          *   Name of field to assert.
          * @param $value
          *   (optional) Value for the field, to assert that the field's value on the
          *   page doesn't match it. You may pass in NULL to skip checking the
          *   value, while still checking that the field doesn't exist. However, the
          *   default value ('') asserts that the field value is not an empty string.
          * @param $message
          *   (optional) Message to display.
          * @param $group
          *   The group this message belongs to.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertNoFieldByName($name, $value = '', $message = '') {
           return $this->assertNoFieldByXPath($this->constructFieldXpath('name', $name), $value, $message ? $message : t('Did not find field by name @name', array('@name' => $name)), t('Browser'));
+        }
         /**
          * Asserts that a field exists in the current page with the given ID and value.
+         *
          * @param $id
          *   ID of field to assert.
          * @param $value
          *   (optional) Value for the field to assert. You may pass in NULL to skip
          *   checking the value, while still checking that the field exists.
          *   However, the default value ('') asserts that the field value is an empty
          *   string.
          * @param $message
          *   (optional) Message to display.
          * @param $group
          *   The group this message belongs to.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertFieldById($id, $value = '', $message = '') {
           return $this->assertFieldByXPath($this->constructFieldXpath('id', $id), $value, $message ? $message : t('Found field by id @id', array('@id' => $id)), t('Browser'));
+        }
         /**
          * Asserts that a field does not exist with the given ID and value.
+         *
          * @param $id
          *   ID of field to assert.
          * @param $value
          *   (optional) Value for the field, to assert that the field's value on the
          *   page doesn't match it. You may pass in NULL to skip checking the value,
          *   while still checking that the field doesn't exist. However, the default
          *   value ('') asserts that the field value is not an empty string.
          * @param $message
          *   (optional) Message to display.
          * @param $group
          *   The group this message belongs to.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertNoFieldById($id, $value = '', $message = '') {
           return $this->assertNoFieldByXPath($this->constructFieldXpath('id', $id), $value, $message ? $message : t('Did not find field by id @id', array('@id' => $id)), t('Browser'));
+        }
         /**
          * Asserts that a checkbox field in the current page is checked.
+         *
          * @param $id
          *   ID of field to assert.
          * @param $message
          *   (optional) Message to display.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertFieldChecked($id, $message = '') {
           $elements = $this->xpath('//input[@id=:id]', array(':id' => $id));
           return $this->assertTrue(isset($elements[0]) && !empty($elements[0]['checked']), $message ? $message : t('Checkbox field @id is checked.', array('@id' => $id)), t('Browser'));
+        }
         /**
          * Asserts that a checkbox field in the current page is not checked.
+         *
          * @param $id
          *   ID of field to assert.
          * @param $message
          *   (optional) Message to display.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertNoFieldChecked($id, $message = '') {
           $elements = $this->xpath('//input[@id=:id]', array(':id' => $id));
           return $this->assertTrue(isset($elements[0]) && empty($elements[0]['checked']), $message ? $message : t('Checkbox field @id is not checked.', array('@id' => $id)), t('Browser'));
+        }
         /**
          * Asserts that a select option in the current page is checked.
+         *
          * @param $id
          *   ID of select field to assert.
          * @param $option
          *   Option to assert.
          * @param $message
          *   (optional) Message to display.
          * @return
          *   TRUE on pass, FALSE on fail.
+         *
          * @todo $id is unusable. Replace with $name.
          */
         protected function assertOptionSelected($id, $option, $message = '') {
           $elements = $this->xpath('//select[@id=:id]//option[@value=:option]', array(':id' => $id, ':option' => $option));
           return $this->assertTrue(isset($elements[0]) && !empty($elements[0]['selected']), $message ? $message : t('Option @option for field @id is selected.', array('@option' => $option, '@id' => $id)), t('Browser'));
+        }
         /**
          * Asserts that a select option in the current page is not checked.
+         *
          * @param $id
          *   ID of select field to assert.
          * @param $option
          *   Option to assert.
          * @param $message
          *   (optional) Message to display.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertNoOptionSelected($id, $option, $message = '') {
           $elements = $this->xpath('//select[@id=:id]//option[@value=:option]', array(':id' => $id, ':option' => $option));
           return $this->assertTrue(isset($elements[0]) && empty($elements[0]['selected']), $message ? $message : t('Option @option for field @id is not selected.', array('@option' => $option, '@id' => $id)), t('Browser'));
+        }
         /**
          * Asserts that a field exists with the given name or ID.
+         *
          * @param $field
          *   Name or ID of field to assert.
          * @param $message
          *   (optional) Message to display.
          * @param $group
          *   The group this message belongs to.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertField($field, $message = '', $group = 'Other') {
           return $this->assertFieldByXPath($this->constructFieldXpath('name', $field) . '|' . $this->constructFieldXpath('id', $field), NULL, $message, $group);
+        }
         /**
          * Asserts that a field does not exist with the given name or ID.
+         *
          * @param $field
          *   Name or ID of field to assert.
          * @param $message
          *   (optional) Message to display.
          * @param $group
          *   The group this message belongs to.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertNoField($field, $message = '', $group = 'Other') {
           return $this->assertNoFieldByXPath($this->constructFieldXpath('name', $field) . '|' . $this->constructFieldXpath('id', $field), NULL, $message, $group);
+        }
         /**
          * Asserts that each HTML ID is used for just a single element.
+         *
          * @param $message
          *   Message to display.
          * @param $group
          *   The group this message belongs to.
          * @param $ids_to_skip
          *   An optional array of ids to skip when checking for duplicates. It is
          *   always a bug to have duplicate HTML IDs, so this parameter is to enable
          *   incremental fixing of core code. Whenever a test passes this parameter,
          *   it should add a "todo" comment above the call to this function explaining
          *   the legacy bug that the test wishes to ignore and including a link to an
          *   issue that is working to fix that legacy bug.
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertNoDuplicateIds($message = '', $group = 'Other', $ids_to_skip = array()) {
           $status = TRUE;
           foreach ($this->xpath('//*[@id]') as $element) {
             $id = (string) $element['id'];
             if (isset($seen_ids[$id]) && !in_array($id, $ids_to_skip)) {
               $this->fail(t('The HTML ID %id is unique.', array('%id' => $id)), $group);
               $status = FALSE;
+            }
             $seen_ids[$id] = TRUE;
+          }
           return $this->assert($status, $message, $group);
+        }
         /**
          * Helper function: construct an XPath for the given set of attributes and value.
+         *
          * @param $attribute
          *   Field attributes.
          * @param $value
          *   Value of field.
          * @return
          *   XPath for specified values.
          */
         protected function constructFieldXpath($attribute, $value) {
           $xpath = '//textarea[@' . $attribute . '=:value]|//input[@' . $attribute . '=:value]|//select[@' . $attribute . '=:value]';
           return $this->buildXPathQuery($xpath, array(':value' => $value));
+        }
         /**
          * Asserts the page responds with the specified response code.
+         *
          * @param $code
          *   Response code. For example 200 is a successful page request. For a list
          *   of all codes see http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html.
          * @param $message
          *   Message to display.
          * @return
          *   Assertion result.
          */
         protected function assertResponse($code, $message = '') {
           $curl_code = curl_getinfo($this->curlHandle, CURLINFO_HTTP_CODE);
           $match = is_array($code) ? in_array($curl_code, $code) : $curl_code == $code;
           return $this->assertTrue($match, $message ? $message : t('HTTP response expected !code, actual !curl_code', array('!code' => $code, '!curl_code' => $curl_code)), t('Browser'));
+        }
         /**
          * Asserts the page did not return the specified response code.
+         *
          * @param $code
          *   Response code. For example 200 is a successful page request. For a list
          *   of all codes see http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html.
          * @param $message
          *   Message to display.
+         *
          * @return
          *   Assertion result.
          */
         protected function assertNoResponse($code, $message = '') {
           $curl_code = curl_getinfo($this->curlHandle, CURLINFO_HTTP_CODE);
           $match = is_array($code) ? in_array($curl_code, $code) : $curl_code == $code;
           return $this->assertFalse($match, $message ? $message : t('HTTP response not expected !code, actual !curl_code', array('!code' => $code, '!curl_code' => $curl_code)), t('Browser'));
+        }
         /**
          * Asserts that the most recently sent e-mail message has the given value.
+         *
          * The field in $name must have the content described in $value.
+         *
          * @param $name
          *   Name of field or message property to assert. Examples: subject, body, id, ...
          * @param $value
          *   Value of the field to assert.
          * @param $message
          *   Message to display.
+         *
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertMail($name, $value = '', $message = '') {
           $captured_emails = variable_get('drupal_test_email_collector', array());
           $email = end($captured_emails);
           return $this->assertTrue($email && isset($email[$name]) && $email[$name] == $value, $message, t('E-mail'));
+        }
         /**
          * Asserts that the most recently sent e-mail message has the string in it.
+         *
          * @param $field_name
          *   Name of field or message property to assert: subject, body, id, ...
          * @param $string
          *   String to search for.
          * @param $email_depth
          *   Number of emails to search for string, starting with most recent.
+         *
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertMailString($field_name, $string, $email_depth) {
           $mails = $this->drupalGetMails();
           $string_found = FALSE;
           for ($i = sizeof($mails) -1; $i >= sizeof($mails) - $email_depth && $i >= 0; $i--) {
             $mail = $mails[$i];
             // Normalize whitespace, as we don't know what the mail system might have
             // done. Any run of whitespace becomes a single space.
             $normalized_mail = preg_replace('/\s+/', ' ', $mail[$field_name]);
             $normalized_string = preg_replace('/\s+/', ' ', $string);
             $string_found = (FALSE !== strpos($normalized_mail, $normalized_string));
             if ($string_found) {
               break;
+            }
+          }
           return $this->assertTrue($string_found, t('Expected text found in @field of email message: "@expected".', array('@field' => $field_name, '@expected' => $string)));
+        }
         /**
          * Asserts that the most recently sent e-mail message has the pattern in it.
+         *
          * @param $field_name
          *   Name of field or message property to assert: subject, body, id, ...
          * @param $regex
          *   Pattern to search for.
+         *
          * @return
          *   TRUE on pass, FALSE on fail.
          */
         protected function assertMailPattern($field_name, $regex, $message) {
           $mails = $this->drupalGetMails();
           $mail = end($mails);
           $regex_found = preg_match("/$regex/", $mail[$field_name]);
           return $this->assertTrue($regex_found, t('Expected text found in @field of email message: "@expected".', array('@field' => $field_name, '@expected' => $regex)));
+        }
         /**
          * Outputs to verbose the most recent $count emails sent.
+         *
          * @param $count
          *   Optional number of emails to output.
          */
         protected function verboseEmail($count = 1) {
           $mails = $this->drupalGetMails();
           for ($i = sizeof($mails) -1; $i >= sizeof($mails) - $count && $i >= 0; $i--) {
             $mail = $mails[$i];
             $this->verbose(t('Email:') . '<pre>' . print_r($mail, TRUE) . '</pre>');
+          }
+        }
+      }
       /**
        * Logs verbose message in a text file.
+       *
        * If verbose mode is enabled then page requests will be dumped to a file and
        * presented on the test result screen. The messages will be placed in a file
        * located in the simpletest directory in the original file system.
+       *
        * @param $message
        *   The verbose message to be stored.
        * @param $original_file_directory
        *   The original file directory, before it was changed for testing purposes.
        * @param $test_class
        *   The active test case class.
+       *
        * @return
        *   The ID of the message to be placed in related assertion messages.
+       *
        * @see DrupalTestCase->originalFileDirectory
        * @see DrupalWebTestCase->verbose()
        */
       function simpletest_verbose($message, $original_file_directory = NULL, $test_class = NULL) {
         static $file_directory = NULL, $class = NULL, $id = 1, $verbose = NULL;
         // Will pass first time during setup phase, and when verbose is TRUE.
         if (!isset($original_file_directory) && !$verbose) {
           return FALSE;
+        }
         if ($message && $file_directory) {
           $message = '<hr />ID #' . $id . ' (<a href="' . $class . '-' . ($id - 1) . '.html">Previous</a> | <a href="' . $class . '-' . ($id + 1) . '.html">Next</a>)<hr />' . $message;
           file_put_contents($file_directory . "/simpletest/verbose/$class-$id.html", $message, FILE_APPEND);
           return $id++;
+        }
         if ($original_file_directory) {
           $file_directory = $original_file_directory;
           $class = $test_class;
           $verbose = variable_get('simpletest_verbose', TRUE);
           $directory = $file_directory . '/simpletest/verbose';
           $writable = file_prepare_directory($directory, FILE_CREATE_DIRECTORY);
           if ($writable && !file_exists($directory . '/.htaccess')) {
             file_put_contents($directory . '/.htaccess', "<IfModule mod_expires.c>\nExpiresActive Off\n</IfModule>\n");
+          }
           return $writable;
+        }
         return FALSE;
+      }

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root / drupal7 / modules / simpletest / drupal_web_test_case.php @ 30d5b9c5