Laravel TDD 教程 6.3. 辅助函数，数据工厂的 state 方法该如何重构

这个可以新建一个PublishedQuestionFactory来实现。具体步骤如下：

1.添加PublishedQuestionFactory：

database/helpers/PublishedQuestionFactory.php

<?php

namespace Helpers;

use App\Models\Question;

class PublishedQuestionFactory
{
    public static function createPublished($overrides = [])
    {
        $question = factory(Question::class)->create($overrides);
        $question->publish();

        return $question;
    }

    public static function createUnpublished($overrides = [])
    {
        $question = factory(Question::class)->state('unpublished')->create($overrides);

        return $question;
    }
}

2.修改composer.json文件：

composer.json

.
.
.
"autoload": {
        "psr-4": {
            "App\\": "app/"
        },
        "classmap": [
            "database/seeds",
            "database/factories",
            "database/helpers"  <-- 此处
        ],
.
.
.

3.加载helpers目录下的文件：

$ composer dump-autoload

4.替换形如：

$question = factory(Question::class)->state('published')->create();

的代码为：

$question = PublishedQuestionFactory::createPublished();