function testShouldListModels_WhenVehicleIsSelected()
 {
     $vehicle = $this->createMMYWithFitment();
     $search = new VF_Search();
     $search->setRequest($this->getRequest($vehicle->toTitleArray()));
     $actual = $search->listEntities('model');
     $this->assertEquals(1, count($actual));
     $this->assertEquals($vehicle->getLevel('model')->getId(), $actual[0]->getId(), 'should list models when make is selected');
 }