function CacheCollectorTest::testUpdateCacheClear

Tests a clear of the cache collector.

File

core/tests/Drupal/Tests/Core/Cache/CacheCollectorTest.php, line 394

Class

CacheCollectorTest

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

Namespace

Code

public function testUpdateCacheClear() : void {
    $key = $this->randomMachineName();
    $value = $this->randomMachineName();
    // 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, should call it again.
    $this->cacheBackend
        ->expects($this->once())
        ->method('delete')
        ->with($this->cid);
    $this->cacheTagsInvalidator
        ->expects($this->never())
        ->method('invalidateTags');
    $this->collector
        ->clear();
    $this->assertEquals($value, $this->collector
        ->get($key));
    $this->assertEquals(2, $this->collector
        ->getCacheMisses());
}