public function testDenormalizationLink() { $this->assertFalse($this->attributeMetadata->isDenormalizationLink()); $newAttributeMetadata = $this->attributeMetadata->withDenormalizationLink(true); $this->assertTrue($newAttributeMetadata->isDenormalizationLink()); $this->assertNotEquals($this->attributeMetadata, $newAttributeMetadata); }