extractConfiguration example

public function collectConfiguration(FormInterface $form): void
    {
        $hash = spl_object_hash($form);

        if (!isset($this->dataByForm[$hash])) {
            $this->dataByForm[$hash] = [];
        }

        $this->dataByForm[$hash] = array_replace(
            $this->dataByForm[$hash],
            $this->dataExtractor->extractConfiguration($form)
        );

        foreach ($form as $child) {
            $this->collectConfiguration($child);
        }
    }

    public function collectDefaultData(FormInterface $form): void
    {
        $hash = spl_object_hash($form);

        

$form = $this->createBuilder('name')
            ->setType(new ResolvedFormType(new HiddenType()))
            ->getForm();

        $this->assertSame([
            'id' => 'name',
            'name' => 'name',
            'type_class' => HiddenType::class,
            'synchronized' => true,
            'passed_options' => [],
            'resolved_options' => [],
        ], $this->dataExtractor->extractConfiguration($form));
    }

    public function testExtractConfigurationSortsPassedOptions()
    {
        $options = [
            'b' => 'foo',
            'a' => 'bar',
            'c' => 'baz',
        ];

        $form = $this->createBuilder('name')