function CacheCollectorTest::testUpdateCacheClearTags

Tests a clear of the cache collector using tags.

File

core/tests/Drupal/Tests/Core/Cache/CacheCollectorTest.php, line 420

Class

CacheCollectorTest

@coversDefaultClass \Drupal\Core\Cache\CacheCollector[[api-linebreak]] @group Cache

Namespace

Code

public function testUpdateCacheClearTags() : void {
  $key = $this->randomMachineName();
  $value = $this->randomMachineName();
  $tags = [
    $this->randomMachineName(),
  ];
  $this->collector = new CacheCollectorHelper($this->cid, $this->cacheBackend, $this->lock, $tags);
  // Set the data and request it.
  $this->collector
    ->setCacheMissData($key, $value);
  $this->assertEquals($value, $this->collector
    ->get($key));
  $this->assertEquals($value, $this->collector
    ->get($key));
  // Should have been added to the storage and only be requested once.
  $this->assertEquals(1, $this->collector
    ->getCacheMisses());
  // Clear the collected cache using the tags, should call it again.
  $this->cacheBackend
    ->expects($this->never())
    ->method('delete');
  $this->cacheTagsInvalidator
    ->expects($this->once())
    ->method('invalidateTags')
    ->with($tags);
  $this->collector
    ->clear();
  $this->assertEquals($value, $this->collector
    ->get($key));
  $this->assertEquals(2, $this->collector
    ->getCacheMisses());
}