Add support for boolean type for CheckboxType (#1123)

* Add support for boolean type for CheckboxType

* add functional tests to checkbox form type as boolean

ModelDescriber/FormModelDescriber.php

@@ -98,6 +98,11 @@ final class FormModelDescriber implements ModelDescriberInterface, ModelRegistry
 
                     break;
                 }
+
+                if ('checkbox' === $blockPrefix) {
+                    $property->setType('boolean');
+                }
+
                 if ('collection' === $blockPrefix) {
                     $subType = $config->getOption('entry_type');
                     $property->setType('array');

Tests/Functional/Form/DummyType.php

@@ -13,6 +13,7 @@ namespace Nelmio\ApiDocBundle\Tests\Functional\Form;
 
 use Symfony\Component\Form\AbstractType;
 use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
+use Symfony\Component\Form\Extension\Core\Type\CheckboxType;
 use Symfony\Component\Form\Extension\Core\Type\TextType;
 use Symfony\Component\Form\FormBuilderInterface;
 
@@ -22,5 +23,6 @@ class DummyType extends AbstractType
     {
         $builder->add('bar', TextType::class, ['required' => false]);
         $builder->add('foo', ChoiceType::class, ['choices' => ['male', 'female']]);
+        $builder->add('baz', CheckboxType::class, ['required' => false]);
     }
 }

Tests/Functional/FunctionalTest.php

@@ -215,6 +215,9 @@ class FunctionalTest extends WebTestCase
                     'type' => 'string',
                     'enum' => ['male', 'female'],
                 ],
+                'baz' => [
+                    'type' => 'boolean'
+                ]
             ],
             'required' => ['foo'],
         ], $this->getModel('DummyType')->toArray());