Version 1

[yaffs-website] / web / core / tests / Drupal / KernelTests / Core / Cache / DatabaseBackendTagTest.php

diff --git a/web/core/tests/Drupal/KernelTests/Core/Cache/DatabaseBackendTagTest.php b/web/core/tests/Drupal/KernelTests/Core/Cache/DatabaseBackendTagTest.php
new file mode 100644 (file)
index 0000000..0fefc39
--- /dev/null
+++ b/web/core/tests/Drupal/KernelTests/Core/Cache/DatabaseBackendTagTest.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace Drupal\KernelTests\Core\Cache;
+
+use Drupal\Core\Cache\Cache;
+use Drupal\Core\DependencyInjection\ContainerBuilder;
+use Drupal\KernelTests\KernelTestBase;
+use Symfony\Component\DependencyInjection\Reference;
+
+/**
+ * Tests DatabaseBackend cache tag implementation.
+ *
+ * @group Cache
+ */
+class DatabaseBackendTagTest extends KernelTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = ['system'];
+
+  /**
+   * {@inheritdoc}
+   */
+  public function register(ContainerBuilder $container) {
+    parent::register($container);
+    // Change container to database cache backends.
+    $container
+      ->register('cache_factory', 'Drupal\Core\Cache\CacheFactory')
+      ->addArgument(new Reference('settings'))
+      ->addMethodCall('setContainer', [new Reference('service_container')]);
+  }
+
+  public function testTagInvalidations() {
+    // Create cache entry in multiple bins.
+    $tags = ['test_tag:1', 'test_tag:2', 'test_tag:3'];
+    $bins = ['data', 'bootstrap', 'render'];
+    foreach ($bins as $bin) {
+      $bin = \Drupal::cache($bin);
+      $bin->set('test', 'value', Cache::PERMANENT, $tags);
+      $this->assertTrue($bin->get('test'), 'Cache item was set in bin.');
+    }
+
+    $invalidations_before = intval(db_select('cachetags')->fields('cachetags', ['invalidations'])->condition('tag', 'test_tag:2')->execute()->fetchField());
+    Cache::invalidateTags(['test_tag:2']);
+
+    // Test that cache entry has been invalidated in multiple bins.
+    foreach ($bins as $bin) {
+      $bin = \Drupal::cache($bin);
+      $this->assertFalse($bin->get('test'), 'Tag invalidation affected item in bin.');
+    }
+
+    // Test that only one tag invalidation has occurred.
+    $invalidations_after = intval(db_select('cachetags')->fields('cachetags', ['invalidations'])->condition('tag', 'test_tag:2')->execute()->fetchField());
+    $this->assertEqual($invalidations_after, $invalidations_before + 1, 'Only one addition cache tag invalidation has occurred after invalidating a tag used in multiple bins.');
+  }
+
+}