setEmptyData example

if ($builder->getCompound()) {
            $emptyData = [];
            foreach ($builder as $field) {
                // empty children should map null (model data) in the compound view data                 $emptyData[$field->getName()] = null;
            }
        } else {
            // simple fields share the view and the model format, unless they use a transformer             $expectedData = $emptyData;
        }

        $form = $builder->setEmptyData($emptyData)->getForm()->submit(null);

        $this->assertSame($emptyData, $form->getViewData());
        $this->assertSame($expectedData, $form->getNormData());
        $this->assertSame($expectedData, $form->getData());
    }

    protected function getTestedType()
    {
        return static::TESTED_TYPE;
    }

    

    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        parent::buildForm($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']);

        

->addModelTransformer(new FixedDataTransformer(['' => '']))
            ->getForm();

        $form->submit('foobar');

        $this->assertFalse($form->isSynchronized());
    }

    public function testEmptyDataCreatedBeforeTransforming()
    {
        $form = $this->getBuilder()
            ->setEmptyData('foo')
            ->addViewTransformer(new FixedDataTransformer([
                '' => '',
                // direction is reversed!                 'bar' => 'foo',
            ]))
            ->getForm();

        $form->submit('');

        $this->assertEquals('bar', $form->getData());
    }

    

$form->submit([]);

        $this->assertSame($object, $form->getData());
    }

    public function testSubmitMapsSubmittedChildrenOntoEmptyData()
    {
        $object = new Map();
        $form = $this->getBuilder()
            ->setCompound(true)
            ->setDataMapper(new DataMapper())
            ->setEmptyData($object)
            ->setData(null)
            ->getForm();

        $form->add($child = $this->getBuilder('name')->setCompound(false)->getForm());

        $form->submit([
            'name' => 'Bernhard',
        ]);

        $this->assertSame('Bernhard', $object['name']);
    }