How to mock laravel helper function request

Question

How do you mock the request() helper function?

For example if I have a function that makes a call

$name = request()->input('name')

How do mock that call, I have tried the following but I get an error that it was never called

$requestMock = $this->mock(Request::class);
$requestMock->shouldReceive('input')->once()->andReturn($name);

Answer 1

If you look at the request() helper ( https://github.com/laravel/framework/blob/05da44d6823c2923597519ac10151f5827a24f80/src/Illuminate/Foundation/helpers.php#L602 ) it's retrieving an instance of the Request class from the Container. After you set up your mock Request class and add your expectations you need to bind it to the Container:

$this->app->instance('request', $mock);