Laravel - Mocking - Mocking Facades

Unlike traditional static method calls, facades (including real-time facades) may be mocked. This provides a great advantage over traditional static methods and grants you the same testability that you would have if you were using traditional dependency injection. When testing, you may often want to mock a call to a Laravel facade that occurs in one of your controllers. For example, consider the following controller action:

    
    

We can mock the call to the Cache facade by using the shouldReceive method, which will return an instance of a Mockery mock. Since facades are actually resolved and managed by the Laravel service container, they have much more testability than a typical static class. For example, let's mock our call to the Cache facade's get method:

    
    once()
                        ->with('key')
                        ->andReturn('value');
    
            $response = $this->get('/users');
    
            // ...
        }
    }
	
You should not mock the Request facade. Instead, pass the input you desire into the HTTP testing methods such as get and post when running your test. Likewise, instead of mocking the Config facade, call the Config::set method in your tests.