function CacheCollectorTest::testUpdateCacheClearTags

Tests a clear of the cache collector using tags.

File

core/tests/Drupal/Tests/Core/Cache/CacheCollectorTest.php, line 390

Class

CacheCollectorTest

@coversDefaultClass \Drupal\Core\Cache\CacheCollector @group Cache

Namespace

Code

public function testUpdateCacheClearTags() {
    $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());
}