When example

use Symfony\Component\Validator\Tests\Constraints\Fixtures\WhenTestWithAttributes;

final class WhenTest extends TestCase
{
    use ExpectDeprecationTrait;

    public function testMissingOptionsExceptionIsThrown()
    {
        $this->expectException(MissingOptionsException::class);
        $this->expectExceptionMessage('The options "expression", "constraints" must be set for constraint "Symfony\Component\Validator\Constraints\When".');

        new When([]);
    }

    public function testNonConstraintsAreRejected()
    {
        $this->expectException(ConstraintDefinitionException::class);
        $this->expectExceptionMessage('The value "foo" is not an instance of Constraint in constraint "Symfony\Component\Validator\Constraints\When"');
        new When('true', [
            'foo',
        ]);
    }

    

final class WhenValidatorTest extends ConstraintValidatorTestCase
{
    public function testConstraintsAreExecuted()
    {
        $constraints = [
            new NotNull(),
            new NotBlank(),
        ];

        $this->expectValidateValue(0, 'Foo', $constraints);

        $this->validator->validate('Foo', new When([
            'expression' => 'true',
            'constraints' => $constraints,
        ]));
    }

    public function testConstraintIsExecuted()
    {
        $constraint = new NotNull();
        $this->expectValidateValue(0, 'Foo', [$constraint]);

        $this->validator->validate('Foo', new When([