/**
  * Test that you can generate error responses using the facade.
  *
  * @test
  */
 public function youCanMakeErrorResponsesUsingFacade()
 {
     // Arrange...
     $responder = $this->mockResponder();
     // Expect...
     $responder->shouldReceive('error')->with('test_error', 400, 'Test error.')->once();
     // Act...
     Responder::error('test_error', 400, 'Test error.');
 }