GraphQL\Type\Definition\Type::boolean PHP Method

    public static function boolean()
    {
        return self::getInternalType(self::BOOLEAN);
    }

    public function testFieldSelection()
    {
        $image = new ObjectType(['name' => 'Image', 'fields' => ['url' => ['type' => Type::string()], 'width' => ['type' => Type::int()], 'height' => ['type' => Type::int()]]]);
        $article = null;
        $author = new ObjectType(['name' => 'Author', 'fields' => function () use($image, &$article) {
            return ['id' => ['type' => Type::string()], 'name' => ['type' => Type::string()], 'pic' => ['type' => $image, 'args' => ['width' => ['type' => Type::int()], 'height' => ['type' => Type::int()]]], 'recentArticle' => ['type' => $article]];
        }]);
        $reply = new ObjectType(['name' => 'Reply', 'fields' => ['author' => ['type' => $author], 'body' => ['type' => Type::string()]]]);
        $article = new ObjectType(['name' => 'Article', 'fields' => ['id' => ['type' => Type::string()], 'isPublished' => ['type' => Type::boolean()], 'author' => ['type' => $author], 'title' => ['type' => Type::string()], 'body' => ['type' => Type::string()], 'image' => ['type' => $image], 'replies' => ['type' => Type::listOf($reply)]]]);
        $doc = '
      query Test {
        article {
            author {
                name
                pic {
                    url
                    width
                }
            }
            image {
                width
                height
            }
            replies {
                body
                author {
                    id
                    name
                    pic {
                        url
                        width
                    }
                    recentArticle {
                        id
                        title
                        body
                    }
                }
            }
        }
      }
';
        $expectedDefaultSelection = ['author' => true, 'image' => true, 'replies' => true];
        $expectedDeepSelection = ['author' => ['name' => true, 'pic' => ['url' => true, 'width' => true]], 'image' => ['width' => true, 'height' => true], 'replies' => ['body' => true, 'author' => ['id' => true, 'name' => true, 'pic' => ['url' => true, 'width' => true], 'recentArticle' => ['id' => true, 'title' => true, 'body' => true]]]];
        $hasCalled = false;
        $actualDefaultSelection = null;
        $actualDeepSelection = null;
        $blogQuery = new ObjectType(['name' => 'Query', 'fields' => ['article' => ['type' => $article, 'resolve' => function ($value, $args, $context, ResolveInfo $info) use(&$hasCalled, &$actualDefaultSelection, &$actualDeepSelection) {
            $hasCalled = true;
            $actualDefaultSelection = $info->getFieldSelection();
            $actualDeepSelection = $info->getFieldSelection(5);
            return null;
        }]]]);
        $schema = new Schema(['query' => $blogQuery]);
        $result = GraphQL::execute($schema, $doc);
        $this->assertTrue($hasCalled);
        $this->assertEquals(['data' => ['article' => null]], $result);
        $this->assertEquals($expectedDefaultSelection, $actualDefaultSelection);
        $this->assertEquals($expectedDeepSelection, $actualDeepSelection);
    }