Laravel，phpunit：For循环不会在数据库中保存多个条目

Question

我正在使用 Laravel 开发一个应用程序，Eloquent 作为 ORM，phpunit 用于单元测试。我想在数据库中保存多个条目，我尝试过 for 循环。但是 for 循环只保存一个条目，即使循环只运行一次。该循环对于除保存块之外的其他代码工作正常。以下是我的代码：

模型类：

class Post extends Model
{
    protected $table = "posts";

    protected $fillable = [
            'id', 
            'user_id', 
            'title',
            'description',
            'total_needed',
            'total_collected', 
            'total_expanse',
            'start_date',
            'end_date',
            'active',
            'updated_at',
            'created_at',
        ];

}

单元测试代码

class RepoPost extends TestCase
{
public function testMain()
    {
        echo "\n >----------- Test Name : " . get_class($this);
        echo "\n >----------- Test Main : ---------> \n";
        $this->postSave();
    } //test:main


public function postSave()
    {
        $postDummy = new Post();
        // $postDummy->id ='';
        $postDummy->user_id = 'Tst';
        $postDummy->title = 'Post Save Repo Test.';
        $postDummy->description = 'UnitTesting of URLs';
        $postDummy->total_needed = '2000';
        $postDummy->total_collected = '1000';
        $postDummy->total_expanse = '500';
        $postDummy->start_date = '22-09-2019';
        $postDummy->end_date = '22-10-2019';
        $postDummy->active = '1';
        $postDummy->updated_at = '2019-09-22';
        $postDummy->created_at = '2019-09-23';

        //loop 1
        for ($x = 0; $x < 10; $x++) {
             echo '\n----PostSave----\n' . $x;
             $postRepoSave = $this->getRepoPostImpl();
             dd($postRepoSave->save2($postDummy));
         }

         //loop 2
        for ($x = 0; $x <= 10; $x++) {
            echo "\n The number is:" .  $x;
        }
    }


public function getRepoPostImpl()
    {
        return new Post_Repo_Impl;
    }


}

循环 1 只保存一个数据，循环也运行一次。循环 2 运行良好，打印了 10 行。

如果我在“testMain()”中多次复制相同的方法，它会保存多个条目，与我复制该方法的次数一样多。下面的代码将在数据库中保存 3 个条目。

    public function testMain()
        {
            echo "\n >----------- Test Name : " . get_class($
            $this->postSave();
            $this->postSave();
            $this->postSave();
        } //test:main

在 testMain() 中使用循环，也提供相同的结果，保存一个条目。

public function testMain()
    {
        echo "\n >----------- Test Name : " . get_class($this);
        for ($x = 0; $x < 10; $x++) {
            $this->postSave();
        }
    } //test:main

存储库代码：

class Post_Repo_Impl implements Post_Repo_I
{
    public function save2(Post $post)
    {
        $saveStatus = true;
        try {
            $post->save();
        } catch (Exception $e) {
            $saveStatus = false;
            error_log("Saveing Post Failed. : " . $e);
        }
        return $saveStatus;
    }
}

为什么我不能通过for循环保存多个条目，有什么办法吗？

更新： 在循环内实例化“post object”，并不能解决问题。

for ($x = 0; $x < 10; $x++) {
            $postDummy = new Post();
            // $postDummy->id ='';
            $postDummy->user_id = 'Tst';
            $postDummy->title = 'Post Save Repo Test.';
            $postDummy->description = 'UnitTesting of URLs';
            $postDummy->total_needed = '2000';
            $postDummy->total_collected = '1000';
            $postDummy->total_expanse = '500';
            $postDummy->start_date = '22-09-2019';
            $postDummy->end_date = '22-10-2019';
            $postDummy->active = '1';
            $postDummy->updated_at = '2019-09-22';
            $postDummy->created_at = '2019-09-22';

            echo '\n----PostSave----\n' . $x;
            $postRepoSave = $this->getRepoPostImpl();
            dd($postRepoSave->save2($postDummy));

        }

Answer 1

将模型实例化移动到 for 循环中，并清理您的测试，它会无缘无故地调用实现接口的外部类

<?php

namespace Tests\Feature;

use App\Post;
use Tests\TestCase;

class RepoPostTest extends TestCase
{
    /** @test */
    public function testMain()
    {
        echo "\n >----------- Test Name : " . get_class($this);
        echo "\n >----------- Test Main : ---------> \n";
        for ($x = 0; $x < 10; $x++) {
            echo '\n----PostSave----\n' . $x;
            $this->postSave();
        }
        $this->assertCount(10, Post::whereTime('created_at', now())->get());
    }

    public function postSave()
    {
        $postDummy = new Post();
        $postDummy->user_id = 'Tst';
        $postDummy->title = 'Post Save Repo Test.';
        $postDummy->description = 'UnitTesting of URLs';
        $postDummy->total_needed = '2000';
        $postDummy->total_collected = '1000';
        $postDummy->total_expanse = '500';
        $postDummy->start_date = '22-09-2019';
        $postDummy->end_date = '22-10-2019';
        $postDummy->active = '1';
        $postDummy->save();
    }
}

假设像这样进行posts 迁移

Schema::create('posts', function (Blueprint $table) {
    $table->bigIncrements('id');
    $table->string('user_id');
    $table->string('title');
    $table->string('description');
    $table->string('total_needed');
    $table->string('total_collected');
    $table->string('total_expanse');
    $table->string('start_date');
    $table->string('end_date');
    $table->string('active');
    $table->timestamps();
});

并且您不需要模型上的 $table 属性，因为它具有复数形式，因此可以自动解析，并且您不需要 $fillable 属性，因为您没有进行批量赋值

 结果

PHPUnit 8.3.4 by Sebastian Bergmann and contributors.

...                                                                 3 / 3 (100%)
 >----------- Test Name : Tests\Feature\RepoPostTest
 >----------- Test Main : ---------> 
\n----PostSave----\n0\n----PostSave----\n1\n----PostSave----\n2\n----PostSave----\n3\n----PostSave----\n4\n----PostSave----\n5\n----PostSave----\n6\n----PostSave----\n7\n----PostSave----\n8\n----PostSave----\n9

Time: 263 ms, Memory: 20.00 MB

OK (1 tests, 1 assertions)