public function ViewsDataTest::testCacheCallsWithWarmCacheForInvalidTable in Drupal 8

Tests the cache calls for an not existing table:

Warm cache:

• all tables
• views_test_data
• $non_existing_table

File

core/modules/views/tests/src/Unit/ViewsDataTest.php, line 528

Class

ViewsDataTest

@coversDefaultClass \Drupal\views\ViewsData @group views

Namespace

Drupal\Tests\views\Unit

Code

public function testCacheCallsWithWarmCacheForInvalidTable() {
  $non_existing_table = $this
    ->randomMachineName();
  $this->moduleHandler
    ->expects($this
    ->never())
    ->method('getImplementations');

  // Setup a warm cache backend for a single table.
  $this->cacheBackend
    ->expects($this
    ->once())
    ->method('get')
    ->with("views_data:{$non_existing_table}:en")
    ->will($this
    ->returnValue((object) [
    'data' => [],
  ]));
  $this->cacheBackend
    ->expects($this
    ->never())
    ->method('set');

  // Initialize the views data cache and request a non-existing table. This
  // will result in the same cache requests as we explicitly write an empty
  // cache entry for non-existing tables to avoid unnecessary requests in
  // those situations. We do have to load the cache entry for all tables to
  // check if the table does exist or not.
  for ($i = 0; $i < 5; $i++) {
    $views_data = $this->viewsData
      ->get($non_existing_table);
    $this
      ->assertSame([], $views_data);
  }
}