Club Drupal

  /**

   * Test field_has_data().

   */

  function testFieldHasData() {

    $entity_type = 'test_entity';

    $langcode = LANGUAGE_NONE;

    $field_name = 'field_1';

    $field = array('field_name' => $field_name, 'type' => 'test_field');

    $field = field_create_field($field);

    $this->assertFalse(field_has_data($field), "No data should be detected.");

    $instance = array(

      'field_name' => $field_name,

      'entity_type' => 'test_entity',

      'bundle' => 'test_bundle'

    );

    $instance = field_create_instance($instance);

    $table = _field_sql_storage_tablename($field);

    $revision_table = _field_sql_storage_revision_tablename($field);

    $columns = array('entity_type', 'entity_id', 'revision_id', 'delta', 'language', $field_name . '_value');

    $eid = 0;

    // Insert values into the field revision table.

    $query = db_insert($revision_table)->fields($columns);

    $query->values(array($entity_type, $eid, 0, 0, $langcode, 1));

    $query->execute();

    $this->assertTrue(field_has_data($field), "Revision data only should be detected.");

    $field_name = 'field_2';

    $field = array('field_name' => $field_name, 'type' => 'test_field');

    $field = field_create_field($field);

    $this->assertFalse(field_has_data($field), "No data should be detected.");

    $instance = array(

      'field_name' => $field_name,

      'entity_type' => 'test_entity',

      'bundle' => 'test_bundle'

    );

    $instance = field_create_instance($instance);

    $table = _field_sql_storage_tablename($field);

    $revision_table = _field_sql_storage_revision_tablename($field);

    $columns = array('entity_type', 'entity_id', 'revision_id', 'delta', 'language', $field_name . '_value');

    $eid = 1;

    // Insert values into the field table.

    $query = db_insert($table)->fields($columns);

    $query->values(array($entity_type, $eid, 0, 0, $langcode, 1));

    $query->execute();

    $this->assertTrue(field_has_data($field), "Values only in field table should be detected.");

  }