public function testSerializeEmbedOneTargetDocument() { $apple = new EmbeddedApple(); $apple->setColor('red'); $fruitBowl = new FruitBowl(); $fruitBowl->setEmbeddedSingleFruitTarget($apple); $correct = ['embeddedSingleFruitTarget' => ['color' => 'red']]; $array = $this->serializer->toArray($fruitBowl); $this->assertEquals($correct, $array); }