Club Drupal

  /**

   * Tests views_fetch_data().

   */

  function testFetchData() {

    // Make sure we start with a empty cache.

    $this->resetStaticViewsDataCache();

    cache_clear_all('*', 'cache_views', TRUE);

    variable_set('views_test_views_data_count', 0);

    // Request info about an existing table.

    $this->assertTrue(views_fetch_data('views_test'), 'Data about existing table returned');

    // This should have triggered a views data rebuild, and written a cache

    // entry for all tables and the requested table but no other tables.

    $this->assertEqual(variable_get('views_test_views_data_count', 0), 1, 'Views data rebuilt once');

    $this->assertTrue(cache_get('views_data:en', 'cache_views'), 'Cache for all tables written.');

    $this->assertTrue(cache_get('views_data:views_test:en', 'cache_views'), 'Cache for requested table written.');

    $this->assertFalse(cache_get('views_data:views_test_previous:en', 'cache_views'), 'No Cache written for not requested table.');

    $this->assertTrue(drupal_static('_views_fetch_data_fully_loaded'), 'Views data is fully loaded');

    $this->resetStaticViewsDataCache();

    // Request the same table again.

    $this->assertTrue(views_fetch_data('views_test'), 'Data about existing table returned');

    $this->assertEqual(variable_get('views_test_views_data_count', 0), 1, 'Views data rebuilt once');

    $this->assertFalse(drupal_static('_views_fetch_data_fully_loaded'), 'Views data is not fully loaded');

    $this->resetStaticViewsDataCache();

    // Request a missing table, this should load the full cache from cache but

    // not rebuilt.

    $this->assertFalse(views_fetch_data('views_test_missing'), 'No data about missing table returned');

    $this->assertEqual(variable_get('views_test_views_data_count', 0), 1, 'Views data rebuilt once');

    $this->assertTrue(drupal_static('_views_fetch_data_fully_loaded'), 'Views data is fully loaded');

    $this->resetStaticViewsDataCache();

    // Request the same empty table again, this should load only that (empty)

    // cache for that table.

    $this->assertFalse(views_fetch_data('views_test_missing'), 'No data about missing table returned');

    $this->assertEqual(variable_get('views_test_views_data_count', 0), 1, 'Views data rebuilt once');

    $this->assertFalse(drupal_static('_views_fetch_data_fully_loaded'), 'Views data is not fully loaded');

  }

  /**

   * Resets the views data cache.

   */

  protected function resetStaticViewsDataCache() {

    drupal_static_reset('_views_fetch_data_cache');

    drupal_static_reset('_views_fetch_data_recursion_protected');

    drupal_static_reset('_views_fetch_data_fully_loaded');

  }