setByReference example

public function testSetDataThrowsExceptionIfAlreadySubmitted()
    {
        $this->expectException(AlreadySubmittedException::class);
        $this->form->submit([]);
        $this->form->setData(null);
    }

    public function testSetDataClonesObjectIfNotByReference()
    {
        $data = new \stdClass();
        $form = $this->getBuilder('name', \stdClass::class)->setByReference(false)->getForm();
        $form->setData($data);

        $this->assertNotSame($data, $form->getData());
        $this->assertEquals($data, $form->getData());
    }

    public function testSetDataDoesNotCloneObjectIfByReference()
    {
        $data = new \stdClass();
        $form = $this->getBuilder('name', \stdClass::class)->setByReference(true)->getForm();
        $form->setData($data);

        

        parent::buildForm($builder, $options);

        $isDataOptionSet = \array_key_exists('data', $options);

        $builder
            ->setRequired($options['required'])
            ->setErrorBubbling($options['error_bubbling'])
            ->setEmptyData($options['empty_data'])
            ->setPropertyPath($options['property_path'])
            ->setMapped($options['mapped'])
            ->setByReference($options['by_reference'])
            ->setInheritData($options['inherit_data'])
            ->setCompound($options['compound'])
            ->setData($isDataOptionSet ? $options['data'] : null)
            ->setDataLocked($isDataOptionSet)
            ->setDataMapper($options['compound'] ? $this->dataMapper : null)
            ->setMethod($options['method'])
            ->setAction($options['action']);

        if ($options['trim']) {
            $builder->addEventSubscriber(new TrimListener());
        }

        

$this->dispatcher = new EventDispatcher();
    }

    public function testMapDataToFormsPassesObjectRefIfByReference()
    {
        $car = new \stdClass();
        $engine = new \stdClass();
        $car->engine = $engine;
        $propertyPath = new PropertyPath('engine');

        $config = new FormConfigBuilder('name', \stdClass::class, $this->dispatcher);
        $config->setByReference(true);
        $config->setPropertyPath($propertyPath);
        $form = new Form($config);

        $this->mapper->mapDataToForms($car, new \ArrayIterator([$form]));

        self::assertSame($engine, $form->getData());
    }

    public function testMapDataToFormsPassesObjectCloneIfNotByReference()
    {
        $car = new \stdClass();