UnitTest formType Symfony 3

Question

I'm trying to get starting the UnitTest process with symfony 3 and I'm still confused how to do that and how to test my forms, I've followed the official documentation and the instructions to create the TestClass :

TestFormType :

<?php

namespace Tests\EvalBundle\Form\Type;

use EvalBundle\Form\DepartmentType;
use EvalBundle\Entity\Department;
use Symfony\Component\Form\Test\TypeTestCase;

class DepartmentTypeTest extends TypeTestCase
{
    public function testSubmitValidData(){

        $formData = array(
            'name' => 'test',
        );

        $departmentType = new DepartmentType();
        $form = $this->factory->create($departmentType);

        $department = new Department();
        $department = fromArray($formData);

        $form->submit($formData);

        $this->assertTrue($form->isSynchronized());
        $this->assertEquals($department, $form->getData());
        $view = $form->createView();
        $children = $view->children;

        foreach (array_keys($formData) as $key) {
            $this->assertArrayHasKey($key, $children);
        }


    }


}
?>

I've got some errors that those functions :

fromArray,assertTrue,assertEquals,assertArrayHasKey : they are not undefined.

Is some one here familiar with this can help me to understand the concept?

Answer 1

• try to use $this->factory->create(DepartmentType::class) instead

$departmentType = new DepartmentType(); $form = $this->factory->create($departmentType);

If problem still appears it could be cause by one of the following issue:

• Method fromArray is not exists in your code. I suggest to feed Department object by setters like $department->setName('test');. In Symfony3 documentation method fromArray was mentioned but we should implement this method by ourselfs

• assertTrue, assertEquals ,assertArrayHasKey - suggested that you are using incorrect TestTypeCase class.

Below I pasted working unit test for form with fields email and surname

<?php

namespace Tests\AppBundle\Form;

use Symfony\Component\Form\Test\TypeTestCase;
use AppBundle\Form\RecipientType;
use AppBundle\Entity\Recipient;

class RecipientTypeTest extends TypeTestCase
{
    public function testAddRecipient()
    {
        $formData = array(
            'email' => 'test@gmail.com',
            'surname' => 'Doe',
        );

        $form = $this->factory->create(RecipientType::class);

        $object = new Recipient();
        $object->setEmail($formData['email']);
        $object->setSurname($formData['surname']);

        // submit the data to the form directly
        $form->submit($formData);

        $this->assertTrue($form->isSynchronized());
        $this->assertEquals($object, $form->getData());

        $view = $form->createView();
        $children = $view->children;

        foreach (array_keys($formData) as $key) {
            $this->assertArrayHasKey($key, $children);
        }
    }
}

Answer 2

Consider to test forms by functional testing not unit.