public function loginWithUsernameAndPasswordExpectObjectId()
 {
     $AVUser = $this->AVUser;
     $AVUser->username = $this->testUser['username'];
     $AVUser->password = $this->testUser['password'];
     $return = $AVUser->signup();
     $loginUser = new AVUser();
     $loginUser->username = $this->testUser['username'];
     $loginUser->password = $this->testUser['password'];
     $returnLogin = $loginUser->login();
     $deleteUser = new AVUser();
     $deleteUser->delete((string) $return->objectId, (string) $return->sessionToken);
     \Enhance\Assert::isTrue(property_exists($returnLogin, 'objectId'));
 }