public function testSave()
 {
     $doctrineCacheMock = $this->getMock('Doctrine\\Common\\Cache\\Cache');
     $parserCache = new DoctrineParserCache($doctrineCacheMock);
     $expression = $this->getMockBuilder('Symfony\\Component\\ExpressionLanguage\\ParsedExpression')->disableOriginalConstructor()->getMock();
     $doctrineCacheMock->expects($this->once())->method('save')->with('foo', $expression);
     $parserCache->save('foo', $expression);
 }