normalizer = self::$container->get(NormalizerInterface::class); } public function testNormalization() { $o = new Origin(); $normalized = $this->normalizer->normalize( $o, 'json', ['groups' => ['read']] ); $this->assertIsArray($normalized); $this->assertArrayHasKey('type', $normalized); $this->assertEquals('origin', $normalized['type']); } }