function ChainedFastBackendTest::testSet

Tests that sets only get written to the consistent backend.

File

core/tests/Drupal/Tests/Core/Cache/ChainedFastBackendTest.php, line 113

Class

ChainedFastBackendTest

Tests Drupal\Core\Cache\ChainedFastBackend.

Namespace

Code

public function testSet() : void {
  $consistent_cache = $this->createMock(CacheBackendInterface::class);
  $fast_cache = $this->createMock(CacheBackendInterface::class);
  // The initial write to the fast backend should result in two writes to the
  // consistent backend, once to invalidate the last write timestamp and once
  // for the item itself. However subsequent writes during the same second
  // should only write to the cache item without further invalidations.
  $consistent_cache->expects($this->exactly(5))
    ->method('set');
  $fast_cache->expects($this->never())
    ->method('set');
  $fast_cache->expects($this->never())
    ->method('setMultiple');
  $chained_fast_backend = new ChainedFastBackend($consistent_cache, $fast_cache, 'foo');
  $chained_fast_backend->set('foo', TRUE);
  $chained_fast_backend->set('bar', TRUE);
  $chained_fast_backend->set('baz', TRUE);
  $chained_fast_backend->set('zoo', TRUE);
}