编写 Lighthouse 5 的自动化测试用例时，断言响应具有给定的 JSON 结构，即仅验证字段是否存在，不验证其值

1、运行 GraphQL Query API，响应 200。主要测试字段：themeAssets 的响应。如图1

2、添加测试字段：themeAssets 。主要验证字段是否存在。因为字段的值无法预测。也不准备插入一条新记录。断言响应具有给定的 JSON 结构，基于 $response->assertJsonStructure(array $structure); 实现

    public function testGetThemeById(): void
    {
        $response = $this->graphQL('
            query GetThemeById($id: ID!) {
                onlineStoreTheme(themeId: $id) {
                    id
                    editable
                    createdAt
                    name
                    themeAssets {
                        id
                        themeId
                        version
                        key
                        mimeType
                        category
                        schema
                        createdAt
                        updatedAt
                    }
                }
            }
            ',
            [
                'id' => 'vogue',
            ]
        );

        $response->assertJson(
            [
                'data' => [
                    'onlineStoreTheme' => [
                        'id' => 'vogue'
                    ],
                ],
            ]
        )->assertJsonStructure([
                'data' => [
                    'onlineStoreTheme' => [
                        'themeAssets' => [
                            [
                                'id',
                                'themeId',
                                'version',
                                'key',
                                'mimeType',
                                'category',
                                'schema',
                                'createdAt',
                                'updatedAt',
                            ]
                        ]
                    ]
                ],
            ]
        );
    }

3、运行测试，测试通过。

PS E:\wwwroot\object> ./vendor/bin/phpunit .\Modules\ThemeStore\Tests\Functional\GraphQl\OnlineStoreThemeGraphQlApiTest.php
PHPUnit 7.5.20 by Sebastian Bergmann and contributors.

.                                                                   1 / 1 (100%)

Time: 996 ms, Memory: 60.00 MB

OK (1 test, 14 assertions)
PS E:\wwwroot\object>