Laravel - Console Tests - Input Output Expectations

Laravel allows you to easily "mock" user input for your console commands using the expectsQuestion method. In addition, you may specify the exit code and text that you expect to be output by the console command using the assertExitCode and expectsOutput methods. For example, consider the following console command:

    
    Artisan::command('question', function () {
        $name = $this->ask('What is your name?');
    
        $language = $this->choice('Which language do you prefer?', [
            'PHP',
            'Ruby',
            'Python',
        ]);
    
        $this->line('Your name is '.$name.' and you prefer '.$language.'.');
    });
	

You may test this command with the following test which utilizes the expectsQuestion, expectsOutput, doesntExpectOutput, and assertExitCode methods:

    
    /**
     * Test a console command.
     *
     * @return void
     */
    public function test_console_command()
    {
        $this->artisan('question')
             ->expectsQuestion('What is your name?', 'Taylor Otwell')
             ->expectsQuestion('Which language do you prefer?', 'PHP')
             ->expectsOutput('Your name is Taylor Otwell and you prefer PHP.')
             ->doesntExpectOutput('Your name is Taylor Otwell and you prefer Ruby.')
             ->assertExitCode(0);
    }