Laravel 带有关系单元测试的用户层次结构出错

Question

场景：因此，我有一个用户 table，其中包含一个名为 parent_id 的 ForeignKey，它引用了用户 table 的 ID。这允许一个用户属于另一个用户，并且一个用户拥有许多“children”用户（one-to-many）。

现在，问题本身是由于单元测试引起的。当我使用数据库中的记录时，它按预期工作，但模拟关系值似乎不起作用。另请注意，针对数据库进行此测试运行没有意义，因为该结构具有很多依赖性。

目标：在不访问数据库的情况下测试规则

规则：

<?php

namespace App\Rules;

use App\Repositories\UserRepository;
use Illuminate\Contracts\Validation\Rule;

class UserHierarchy implements Rule
{
    /**
     * User related repository
     *
     * @var \App\Repositories\UserRepository $userRepository
     */
    private $userRepository;

    /**
     * User to affected
     *
     * @var null|int $userId 
     */
    private $userId;

    /**
     * Automatic dependency injection
     *
     * @param \App\Repositories\UserRepository $userRepository
     * @param integer|null $userId
     */
    public function __construct(UserRepository $userRepository, ?int $userId)
    {
        $this->userRepository = $userRepository;
        $this->userId = $userId;
    }

    /**
     * Determine if the validation rule passes.
     * Uses recursivity in order to validate if there is it causes an infinite loop
     *
     * @param  string  $attribute
     * @param  mixed  $value
     * @return bool
     */
    public function passes($attribute, $value): bool
    {
        if (is_null($value)) {
            return true;
        }

        $childrenOfUserToBeUpdated = $this->userRepository->show($this->userId);
    //pluck_key_recursive is a customized function but its not posted because the issue can be traced on the dd below
        $notAllowedUserIds = pluck_key_recursive($childrenOfUserToBeUpdated->childrenTree->toArray(), 'children_tree', 'id');
         dd($childrenOfUserToBeUpdated->childrenTree->toArray());
        return in_array($value, $notAllowedUserIds) ? false : true;
    }
}

用户关系如下：

/**
     * An User can have multiple children User
     *
     * @return EloquentRelationship
     */
    public function children(): HasMany
    {
        return $this->hasMany(self::class, 'parent_id', 'id');
    }

    /**
     * An User can have a hierarchal of children
     *
     * @return EloquentRelationship
     */
    public function childrenTree(): HasMany
    {
        return $this->children()->with('childrenTree');
    }

这是测试：

<?php

namespace Tests\Unit\Rules;

use App\Repositories\UserRepository;
use App\Rules\UserHierarchy;
use App\Models\User;
use Illuminate\Database\Eloquent\Collection;
use Mockery;
use Tests\TestCase;

class UserHierarchyTest extends TestCase
{
    /**
     * Setting up Mockery
     *
     * @return void
     */
    protected function setUp(): void
    {
        parent::setUp();
           $this->parent = new User(['id' => 1]);
        $this->sonOne = new User(['id' => 2, 'parent_id' => $this->parent->id]);
        $this->sonTwo = new User(['id' => 3, 'parent_id' => $this->parent->id]);
        $this->sonThree = new User(['id' => 4, 'parent_id' => $this->parent->id]);
        $this->grandSonOne = new User(['id' => 5, 'parent_id' => $this->sonOne->id]);
        $this->grandSonTwo = new User(['id' => 6, 'parent_id' => $this->sonOne->id]);

 //$this->sonOne->children = new Collection([$this->grandSonOne, $this->grandSonTwo]);
        //$this->parent->children = new Collection([$this->sonOne, $this->sonTwo, $this->sonThree]);
        $this->sonOne->childrenTree = new Collection([$this->grandSonOne, $this->grandSonTwo]);
        $this->parent->childrenTree = new Collection([$this->sonOne, $this->sonTwo, $this->sonThree]);


        $this->userRepositoryMock = Mockery::mock(UserRepository::class);
        $this->app->instance(UserRepository::class, $this->userRepositoryMock);
    }

    /**
     * The rule should pass if the user to be updated will have not a child as a parent (infinite loop)
     *
     * @return void
     */
    public function test_true_if_the_user_id_isnt_in_the_hierarchy()
    {
        //Arrange
        $this->userRepositoryMock->shouldReceive('show')->once()->with($this->parent->id)->andReturn($this->parent);
        //Act
        $validator = validator(['parent_id' => $this->randomUserSon->id], ['parent_id' => resolve(UserHierarchy::class, ['userId' => $this->parent->id])]);
        //Assert
        $this->assertTrue($validator->passes());
    }

    /**
     * The rule shouldnt pass if the user to be updated will have a child as a parent (infinite loop)
     *
     * @return void
     */
    public function test_fail_if_the_user_id_is_his_son_or_below()
    {
        //Arrange
        $this->userRepositoryMock->shouldReceive('show')->once()->with($this->parent->id)->andReturn($this->parent);
        //Act
        $validator = validator(['parent_id' => $this->grandSonOne->id], ['parent_id' => resolve(UserHierarchy::class, ['userId' => $this->parent->id])]);
        //Assert
        $this->assertFalse($validator->passes());
    }

    /**
     * Tear down Mockery
     *
     * @return void
     */
    public function tearDown(): void
    {
        parent::tearDown();
        Mockery::close();
    }
}

我尝试了很多组合，但我似乎无法让它发挥作用。我什至尝试过一直模拟用户模型，但结果相同：用户的 children 被转换为数组，但 grandchildren 仍保留为项目 objects一个集合。

这是此测试的示例输出：

array:3 [
  0 => array:6 [
    "name" => "asd"
    "email" => "asdasdasd"
    "id" => 2
    "parent_id" => 1
    "childrenTree" => Illuminate\Database\Eloquent\Collection^ {#898
      #items: array:2 [
        0 => App\Models\User^ {#915
          #fillable: array:8 [...

为什么 ->toArray() 将所有内容都转换为具有真实数据库的数组 objects 而不是在设置预期结果时？

Answer 1

我认为您可能正在寻找 $parentModel->setRelation($name, $modelOrEloquentCollection)。如果您实际上没有将记录保存到数据库，Eloquent 将不会为您连接它们，即使 ID 值匹配也是如此。

Laravel 带有关系单元测试的用户层次结构出错

Laravel user hierarchy w/ relationship unit testing gone wrong

phpunit

laravel

eloquent

eloquent-relationship

laravel-8