CODEWITHSUNDEEP
phpunit-testingsymfonygetphpunit
Yassine Elhamraoui
Yassine Elhamraoui

Reputation: 155

How to access get method in a Test Class Symfony2

I have to write a test class to test my service methods. In my controllers I could access the service by doing $service = $this->get('myService'); and I could access my methods by doing $service->someMethod();.
Now I want to write a test class to test some of the service methods, I tried doing like the doc : 

class ServiceTest extends \PHPUnit_Framework_TestCase {
    public function testSomeMethod() {
        $service = $this->get('myService');
        ....
    }
}

When I launch the test I get something like :
Fatal error : Call to undefined method XXX\XXXBundle\Tests\Services\ServicesTest::get() in ...
So my question is how can I use get method to be able to call my service methods

Upvotes: 0

Views: 270

Answers (2)

D_R
D_R

Reputation: 4962

You don't need to use the container in order to test services and other classes. You should create a new instance of the class and inject the dependencies using test doubles.

Test doubles - since you don't want to write a functional testing and to use the real dependencies you should be using a test double. for example if one of the service dependencies is the EntityManager what would happen is that a new entries would be inserted into the Database (or deleted from it) and its not the purpose of Unit testing (you do need to check this tho if you are writing a functional test).

And that's how you should approach this kind of testings:

public function testSomeServiceAdd()
{
    $dependencyOne = $this->getMockBuilder('Acme\SomeBundle\DependencyOne')->
        disableOriginalConstructor()->
        getMock();

    $dependencyTwo = $this->getMockBuilder('Acme\SomeBundle\DependencyTwo')->
        disableOriginalConstructor()->
        getMock();

    $service = new SomeService($dependencyOne, $dependencyTwo);

    $response = $service->add(1, 2);

    $this->assertEquals($response, 3);
}

As you can see I am "mocking" the dependencies and injecting it into the service, after that i'm calling the method and asserting the result.

I would also like to suggest a Mocking framework instead of using the built-in PHPUnit mocking functions. it's easier to use and it has much more mocking functionality: https://github.com/danrevah/ShortifyPunit

Upvotes: 4

Alexandru Olaru
Alexandru Olaru

Reputation: 7092

To test your services you should extend the KernelTestCase class.

class ServiceTest extends KernelTestCase
{
    private $service;

    /**
     * {@inheritDoc}
     */
    public function setUp()
    {
        self::bootKernel();
        $this->service = static::$kernel->getContainer()
            ->get('my_service')
        ;
    }
}

Upvotes: 0

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