CODEWITHSUNDEEP
phpunit-testingphpunitsilex
Yulek
Yulek

Reputation: 341

Unit test method with Silex\Application as parameter

In my project I have a class SessionManager which sets and clears session variables for sticky forms etc. Every method in that class takes in a Silex\Application object as parameter. How can I unit test these methods? Create a Silex application object in each test method? I'm new to Silex and unit testing so and not sure how to handle this.

Example of one method:

public static function setMessage($message, $messageClass, Application &$app)
{
    // store message as array, with content and class keys
    $app['session']->set('message', array(
        'content' => $message,
        'class' => $messageClass
    ));
}

Upvotes: 1

Views: 626

Answers (1)

Adam Cameron
Adam Cameron

Reputation: 29870

Firstly I think that $app should not be a dependency of your SessionManager; $app['session'] should be. But also it should be a dependency of the object (ie: passed to the constructor) not of the individual method.

But that doesn't change the tactic for solving the problem. All you need to do is create a mock of the Session, which covers the dependent method you need to call, eg:

// in your test class
// ...
public function setup(){
    $mockedSession = $this->getMockedSession();
    $this->sessionManager = new SessionManager($mockedSession);
}

public function testMessage(){
    // test stuff here
}

private function getMockedSession(){
    $mockedSession = $this->getMockBuilder('\Symfony\Component\HttpFoundation\Session\Session')
        ->disableOriginalConstructor()
        ->setMethods(['set'])
        ->getMock();

    $mockedSession->method('set')
        ->willReturn('something testable');

    return $mockedSession;
}

You probably only need to test that your setMessage method passes through its $message and $messageClass values to the mocked method: that's all it's doing. In this light you probably wanna have a ->with('message', [$testMessage, $testClass]) or something in your mock too. The exact implementation is down to how you want to test.

Upvotes: 3

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