function ViewsModuleTest::testFetchData in Views (for Drupal 7) 7.3

Tests views_fetch_data().

File

tests/views_module.test, line 161

Definition of ViewsModuleTest.

Class

ViewsModuleTest

Tests basic functions from the Views module.

Code

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');

  // Test if the cache consistency is ensured. There was an issue where
  // calling _views_fetch_data() first with a table would prevent the function
  // from properly rebuilt a missing the general cache entry.
  // See https://www.drupal.org/node/2475669 for details.
  // Make sure we start with a empty cache.
  $this
    ->resetStaticViewsDataCache();
  cache_clear_all('*', 'cache_views', TRUE);

  // Prime the static cache of _views_fetch_data() by calling it with a table
  // first.
  views_fetch_data('views_test');

  // Now remove the general cache.
  cache_clear_all('views_data:en', 'cache_views');

  // Reset the static cache to see if fetches from the persistent cache
  // properly rebuild the static cache.
  $this
    ->resetStaticViewsDataCache();

  // Prime the static cache of _views_fetch_data() by calling it with a table
  // first.
  views_fetch_data('views_test');

  // Fetch the general cache, which was deleted, an see if it is rebuild
  // properly.
  views_fetch_data();
  $this
    ->assertTrue(cache_get('views_data:en', 'cache_views'), 'Cache for all tables was properly rebuild.');
}