--- /dev/null
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Serializer\Tests\Normalizer;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Serializer\Normalizer\JsonSerializableNormalizer;
+use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
+use Symfony\Component\Serializer\SerializerInterface;
+use Symfony\Component\Serializer\Tests\Fixtures\JsonSerializableDummy;
+
+/**
+ * @author Fred Cox <mcfedr@gmail.com>
+ */
+class JsonSerializableNormalizerTest extends TestCase
+{
+ /**
+ * @var JsonSerializableNormalizer
+ */
+ private $normalizer;
+
+ /**
+ * @var \PHPUnit_Framework_MockObject_MockObject|SerializerInterface
+ */
+ private $serializer;
+
+ protected function setUp()
+ {
+ $this->serializer = $this->getMockBuilder(JsonSerializerNormalizer::class)->getMock();
+ $this->normalizer = new JsonSerializableNormalizer();
+ $this->normalizer->setSerializer($this->serializer);
+ }
+
+ public function testSupportNormalization()
+ {
+ $this->assertTrue($this->normalizer->supportsNormalization(new JsonSerializableDummy()));
+ $this->assertFalse($this->normalizer->supportsNormalization(new \stdClass()));
+ }
+
+ public function testNormalize()
+ {
+ $this->serializer
+ ->expects($this->once())
+ ->method('normalize')
+ ->will($this->returnCallback(function ($data) {
+ $this->assertArraySubset(array('foo' => 'a', 'bar' => 'b', 'baz' => 'c'), $data);
+
+ return 'string_object';
+ }))
+ ;
+
+ $this->assertEquals('string_object', $this->normalizer->normalize(new JsonSerializableDummy()));
+ }
+
+ /**
+ * @expectedException \Symfony\Component\Serializer\Exception\CircularReferenceException
+ */
+ public function testCircularNormalize()
+ {
+ $this->normalizer->setCircularReferenceLimit(1);
+
+ $this->serializer
+ ->expects($this->once())
+ ->method('normalize')
+ ->will($this->returnCallback(function ($data, $format, $context) {
+ $this->normalizer->normalize($data['qux'], $format, $context);
+
+ return 'string_object';
+ }))
+ ;
+
+ $this->assertEquals('string_object', $this->normalizer->normalize(new JsonSerializableDummy()));
+ }
+
+ /**
+ * @expectedException \Symfony\Component\Serializer\Exception\InvalidArgumentException
+ * @expectedExceptionMessage The object must implement "JsonSerializable".
+ */
+ public function testInvalidDataThrowException()
+ {
+ $this->normalizer->normalize(new \stdClass());
+ }
+}
+
+abstract class JsonSerializerNormalizer implements SerializerInterface, NormalizerInterface
+{
+}