graphql-php/tests/Executor/ExecutorSchemaTest.php

<?php
namespace GraphQL\Tests\Executor;

use GraphQL\Executor\Executor;
use GraphQL\Language\Parser;
use GraphQL\Type\Schema;
use GraphQL\Type\Definition\ObjectType;
use GraphQL\Type\Definition\Type;
use PHPUnit\Framework\TestCase;

class ExecutorSchemaTest extends TestCase
{
    // Execute: Handles execution with a complex schema

    /**
     * @see it('executes using a schema')
     */
    public function testExecutesUsingASchema() : void
    {
        $BlogArticle = null;
        $BlogImage = new ObjectType([
            'name' => 'Image',
            'fields' => [
                'url' => ['type' => Type::string()],
                'width' => ['type' => Type::int()],
                'height' => ['type' => Type::int()],
            ]
        ]);

        $BlogAuthor = new ObjectType([
            'name' => 'Author',
            'fields' => function() use (&$BlogArticle, &$BlogImage) {
                return [
                    'id' => ['type' => Type::string()],
                    'name' => ['type' => Type::string()],
                    'pic' => [
                        'args' => ['width' => ['type' => Type::int()], 'height' => ['type' => Type::int()]],
                        'type' => $BlogImage,
                        'resolve' => function ($obj, $args) {
                            return $obj['pic']($args['width'], $args['height']);
                        }
                    ],
                    'recentArticle' => $BlogArticle
                ];
            }
        ]);

        $BlogArticle = new ObjectType([
            'name' => 'Article',
            'fields' => [
                'id' => ['type' => Type::nonNull(Type::string())],
                'isPublished' => ['type' => Type::boolean()],
                'author' => ['type' => $BlogAuthor],
                'title' => ['type' => Type::string()],
                'body' => ['type' => Type::string()],
                'keywords' => ['type' => Type::listOf(Type::string())]
            ]
        ]);

        $BlogQuery = new ObjectType([
            'name' => 'Query',
            'fields' => [
                'article' => [
                    'type' => $BlogArticle,
                    'args' => ['id' => ['type' => Type::id()]],
                    'resolve' => function ($_, $args) {
                        return $this->article($args['id']);
                    }
                ],
                'feed' => [
                    'type' => Type::listOf($BlogArticle),
                    'resolve' => function () {
                        return [
                            $this->article(1),
                            $this->article(2),
                            $this->article(3),
                            $this->article(4),
                            $this->article(5),
                            $this->article(6),
                            $this->article(7),
                            $this->article(8),
                            $this->article(9),
                            $this->article(10)
                        ];
                    }
                ]
            ]
        ]);

        $BlogSchema = new Schema(['query' => $BlogQuery]);


        $request = '
      {
        feed {
          id,
          title
        },
        article(id: "1") {
          ...articleFields,
          author {
            id,
            name,
            pic(width: 640, height: 480) {
              url,
              width,
              height
            },
            recentArticle {
              ...articleFields,
              keywords
            }
          }
        }
      }

      fragment articleFields on Article {
        id,
        isPublished,
        title,
        body,
        hidden,
        notdefined
      }
    ';

        $expected = [
            'data' => [
                'feed' => [
                    ['id' => '1',
                        'title' => 'My Article 1'],
                    ['id' => '2',
                        'title' => 'My Article 2'],
                    ['id' => '3',
                        'title' => 'My Article 3'],
                    ['id' => '4',
                        'title' => 'My Article 4'],
                    ['id' => '5',
                        'title' => 'My Article 5'],
                    ['id' => '6',
                        'title' => 'My Article 6'],
                    ['id' => '7',
                        'title' => 'My Article 7'],
                    ['id' => '8',
                        'title' => 'My Article 8'],
                    ['id' => '9',
                        'title' => 'My Article 9'],
                    ['id' => '10',
                        'title' => 'My Article 10']
                ],
                'article' => [
                    'id' => '1',
                    'isPublished' => true,
                    'title' => 'My Article 1',
                    'body' => 'This is a post',
                    'author' => [
                        'id' => '123',
                        'name' => 'John Smith',
                        'pic' => [
                            'url' => 'cdn://123',
                            'width' => 640,
                            'height' => 480
                        ],
                        'recentArticle' => [
                            'id' => '1',
                            'isPublished' => true,
                            'title' => 'My Article 1',
                            'body' => 'This is a post',
                            'keywords' => ['foo', 'bar', '1', 'true', null]
                        ]
                    ]
                ]
            ]
        ];

        $this->assertEquals($expected, Executor::execute($BlogSchema, Parser::parse($request))->toArray());
    }

    private function article($id)
    {
        $johnSmith = null;
        $article = function($id) use (&$johnSmith) {
            return [
                'id' => $id,
                'isPublished' => 'true',
                'author' => $johnSmith,
                'title' => 'My Article ' . $id,
                'body' => 'This is a post',
                'hidden' => 'This data is not exposed in the schema',
                'keywords' => ['foo', 'bar', 1, true, null]
            ];
        };

        $getPic = function($uid, $width, $height) {
            return [
                'url' => "cdn://$uid",
                'width' => $width,
                'height' => $height
            ];
        };

        $johnSmith = [
            'id' => 123,
            'name' => 'John Smith',
            'pic' => function($width, $height) use ($getPic) {return $getPic(123, $width, $height);},
            'recentArticle' => $article(1),
        ];

        return $article($id);
    }
}