/**
  * @test
  */
 public function getByTagCallsBackendAndReturnsIdentifiersAndValuesOfEntries()
 {
     $tag = 'sometag';
     $identifiers = array('one', 'two');
     $entries = array('one' => 'one value', 'two' => 'two value');
     $backend = $this->getMockBuilder(\TYPO3\Flow\Cache\Backend\AbstractBackend::class)->disableOriginalConstructor()->setMethods(array('get', 'set', 'has', 'remove', 'findIdentifiersByTag', 'flush', 'flushByTag', 'collectGarbage'))->getMock();
     $backend->expects($this->once())->method('findIdentifiersByTag')->with($this->equalTo($tag))->will($this->returnValue($identifiers));
     $backend->expects($this->exactly(2))->method('get')->will($this->onConsecutiveCalls('one value', 'two value'));
     $cache = new \TYPO3\Flow\Cache\Frontend\StringFrontend('StringFrontend', $backend);
     $this->assertEquals($entries, $cache->getByTag($tag), 'Did not receive the expected entries');
 }