public function ChainedFastBackendTest::testFallThroughToConsistentCache in Drupal 8

Same name and namespace in other branches

1. 9 core/tests/Drupal/Tests/Core/Cache/ChainedFastBackendTest.php \Drupal\Tests\Core\Cache\ChainedFastBackendTest::testFallThroughToConsistentCache()
2. 10 core/tests/Drupal/Tests/Core/Cache/ChainedFastBackendTest.php \Drupal\Tests\Core\Cache\ChainedFastBackendTest::testFallThroughToConsistentCache()

Tests a fast cache miss gets data from the consistent cache backend.

File

core/tests/Drupal/Tests/Core/Cache/ChainedFastBackendTest.php, line 64

Class

ChainedFastBackendTest

@coversDefaultClass \Drupal\Core\Cache\ChainedFastBackend @group Cache

Namespace

Drupal\Tests\Core\Cache

Code

public function testFallThroughToConsistentCache() {
  $timestamp_item = (object) [
    'cid' => ChainedFastBackend::LAST_WRITE_TIMESTAMP_PREFIX . 'cache_foo',
    // Time travel is easy.
    'data' => time() + 60,
  ];
  $cache_item = (object) [
    'cid' => 'foo',
    'data' => 'baz',
    'created' => time(),
    'expire' => time() + 3600,
    'tags' => [
      'tag',
    ],
  ];
  $consistent_cache = $this
    ->createMock('Drupal\\Core\\Cache\\CacheBackendInterface');
  $fast_cache = $this
    ->createMock('Drupal\\Core\\Cache\\CacheBackendInterface');

  // We should get a call for the timestamp on the consistent backend.
  $consistent_cache
    ->expects($this
    ->once())
    ->method('get')
    ->with($timestamp_item->cid)
    ->will($this
    ->returnValue($timestamp_item));

  // We should get a call for the cache item on the consistent backend.
  $consistent_cache
    ->expects($this
    ->once())
    ->method('getMultiple')
    ->with([
    $cache_item->cid,
  ])
    ->will($this
    ->returnValue([
    $cache_item->cid => $cache_item,
  ]));

  // We should get a call for the cache item on the fast backend.
  $fast_cache
    ->expects($this
    ->once())
    ->method('getMultiple')
    ->with([
    $cache_item->cid,
  ])
    ->will($this
    ->returnValue([
    $cache_item->cid => $cache_item,
  ]));

  // We should get a call to set the cache item on the fast backend.
  $fast_cache
    ->expects($this
    ->once())
    ->method('set')
    ->with($cache_item->cid, $cache_item->data, $cache_item->expire);
  $chained_fast_backend = new ChainedFastBackend($consistent_cache, $fast_cache, 'foo');
  $this
    ->assertEquals('baz', $chained_fast_backend
    ->get('foo')->data);
}