public function testDeleteReview()
 {
     $daoMock = $this->getMock("PerformanceReviewDao", array("deleteReview"));
     $daoMock->expects($this->any())->method('deleteReview')->will($this->returnValue(true));
     $service = new PerformanceReviewService();
     $service->setDao($daoMock);
     $reviews = $service->deleteReview(array(1));
     $this->assertEquals(1, $service->deleteReview(1));
 }