Unit testing validator constraints with symfony2.3 - php

Question

I would like to make a test unit using constraint but I have this error when running my test
This are my different classes and the obtaining error after running phpunit
use Symfony\Component\Validator\Constraint;
/**
* #Annotation
*/
class Age18 extends Constraint
{
public $message = 'Vous devez avoir 18 ans.';
}
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;
class Age18Validator extends ConstraintValidator
{
public function validate($dateNaissance, Constraint $constraint)
{
if ($dateNaissance > new \DateTime("18 years ago"))
{
$this->context->addViolation($constraint->message);
}
}
}
use Symfony\Component\Translation\TranslatorInterface;
use Symfony\Component\Validator\Constraint;
use Symfony\Component\Validator\ConstraintValidator;
class Age18ValidatorTest extends \PHPUnit_Framework_TestCase
{
private $constraint;
public function setUp()
{
$this->constraint = $this->getMock('Symfony\Component\Validator\Constraint');
}
public function testValidate()
{
/*ConstraintValidator*/
$validator = new Age18Validator();
$context = $this
->getMockBuilder('Symfony\Component\Validator\ExecutionContext')
->disableOriginalConstructor()
->getMock('Age18Validator', array('validate'));
$context->expects($this->once())
->method('addViolation')
->with('Vous devez avoir 18 ans.');
$validator->initialize($context);
$validator->validate('10/10/2000', $this->constraint);
}
public function tearDown()
{
$this->constraint = null;
}
}
Expectation failed for method name is equal to <string:addViolation> when invoked 1 time(s).
Method was expected to be called 1 times, actually called 0 times.
Please could you help me to solve this problem?
Thanks you!!

Answer 1

Check the type of your element: in the validator class you use the comparator between two DateTime object but in the test you pass a string to the validator.
This is my test class:
namespace Acme\DemoBundle\Tests\Form;
use Acme\DemoBundle\Validator\Constraints\Age18;
use Acme\DemoBundle\Validator\Constraints\Age18Validator;
class Age18ValidatorTest extends \PHPUnit_Framework_TestCase
{
private $constraint;
private $context;
public function setUp()
{
$this->constraint = new Age18();
$this->context = $this->getMockBuilder('Symfony\Component\Validator\ExecutionContext')->disableOriginalConstructor()->getMock();
}
public function testValidate()
{
/*ConstraintValidator*/
$validator = new Age18Validator();
$validator->initialize( $this->context);
$this->context->expects($this->once())
->method('addViolation')
->with($this->constraint->message,array());
$validator->validate(\Datetime::createFromFormat("d/m/Y","10/10/2000"), $this->constraint);
}
public function tearDown()
{
$this->constraint = null;
}
}
Hope this help