Author: Kévin Dunglas (dunglas@gmail.com)
Inheritance: implements Symfony\Component\Serializer\Normalizer\NormalizerInterface
    public function testNormalize()
    {
        $urlGeneratorProphecy = $this->prophesize(UrlGeneratorInterface::class);
        $urlGeneratorProphecy->generate('api_jsonld_context', ['shortName' => 'ConstraintViolationList'])->willReturn('/context/foo')->shouldBeCalled();
        $normalizer = new ConstraintViolationListNormalizer($urlGeneratorProphecy->reveal());
        $list = new ConstraintViolationList([new ConstraintViolation('a', 'b', [], 'c', 'd', 'e'), new ConstraintViolation('1', '2', [], '3', '4', '5')]);
        $expected = ['@context' => '/context/foo', '@type' => 'ConstraintViolationList', 'hydra:title' => 'An error occurred', 'hydra:description' => 'd: a
4: 1', 'violations' => [['propertyPath' => 'd', 'message' => 'a'], ['propertyPath' => '4', 'message' => '1']]];
        $this->assertEquals($expected, $normalizer->normalize($list));
    }