3 namespace Drupal\KernelTests\Core\Cache;
5 use Drupal\Core\Cache\Cache;
6 use Drupal\Core\DependencyInjection\ContainerBuilder;
7 use Drupal\KernelTests\KernelTestBase;
8 use Symfony\Component\DependencyInjection\Reference;
11 * Tests DatabaseBackend cache tag implementation.
15 class DatabaseBackendTagTest extends KernelTestBase {
22 public static $modules = ['system'];
27 public function register(ContainerBuilder $container) {
28 parent::register($container);
29 // Change container to database cache backends.
31 ->register('cache_factory', 'Drupal\Core\Cache\CacheFactory')
32 ->addArgument(new Reference('settings'))
33 ->addMethodCall('setContainer', [new Reference('service_container')]);
36 public function testTagInvalidations() {
37 // Create cache entry in multiple bins.
38 $tags = ['test_tag:1', 'test_tag:2', 'test_tag:3'];
39 $bins = ['data', 'bootstrap', 'render'];
40 foreach ($bins as $bin) {
41 $bin = \Drupal::cache($bin);
42 $bin->set('test', 'value', Cache::PERMANENT, $tags);
43 $this->assertTrue($bin->get('test'), 'Cache item was set in bin.');
46 $invalidations_before = intval(db_select('cachetags')->fields('cachetags', ['invalidations'])->condition('tag', 'test_tag:2')->execute()->fetchField());
47 Cache::invalidateTags(['test_tag:2']);
49 // Test that cache entry has been invalidated in multiple bins.
50 foreach ($bins as $bin) {
51 $bin = \Drupal::cache($bin);
52 $this->assertFalse($bin->get('test'), 'Tag invalidation affected item in bin.');
55 // Test that only one tag invalidation has occurred.
56 $invalidations_after = intval(db_select('cachetags')->fields('cachetags', ['invalidations'])->condition('tag', 'test_tag:2')->execute()->fetchField());
57 $this->assertEqual($invalidations_after, $invalidations_before + 1, 'Only one addition cache tag invalidation has occurred after invalidating a tag used in multiple bins.');