PercentToLocalizedStringTransformer example

$this->defaultLocale = \Locale::getDefault();
        \Locale::setDefault('en');
    }

    protected function tearDown(): void
    {
        \Locale::setDefault($this->defaultLocale);
    }

    public function testTransform()
    {
        $transformer = new PercentToLocalizedStringTransformer(null, null, \NumberFormatter::ROUND_HALFUP);

        $this->assertEquals('10', $transformer->transform(0.1));
        $this->assertEquals('15', $transformer->transform(0.15));
        $this->assertEquals('12', $transformer->transform(0.1234));
        $this->assertEquals('200', $transformer->transform(2));
    }

    public function testTransformEmpty()
    {
        $transformer = new PercentToLocalizedStringTransformer(null, null, \NumberFormatter::ROUND_HALFUP);

        

use Symfony\Component\Form\FormInterface;
use Symfony\Component\Form\FormView;
use Symfony\Component\OptionsResolver\OptionsResolver;

class PercentType extends AbstractType
{
    /** * @return void */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->addViewTransformer(new PercentToLocalizedStringTransformer(
            $options['scale'],
            $options['type'],
            $options['rounding_mode'],
            $options['html5']
        ));
    }

    /** * @return void */
    public function buildView(FormView $view, FormInterface $form, array $options)
    {