安裝 Codeception 撰寫 unit test

Codeception 是一個 testing framework，除了 unit test 以外，還包含了 functional test、behavior test，並提供各種 module 供整合。

到專案目錄使用 composer 安裝 Codeception：

composer require codeception/codeception --dev

初始化 unit test 的設定：

php vendor/bin/codecept init Unit

 This will install Codeception for unit testing only

? Where tests will be stored? (tests) 

Codeception provides additional features for integration tests
Like accessing frameworks, ORM, Database.
? Do you wish to enable them? (y/n) n
 Adding codeception/module-asserts for Asserts to composer.json
1 new packages added to require-dev
? composer.json updated. Do you want to run "composer update"? (y/n) y
 Running composer update

建立新的 unit test 可透過 generate:test 指令來建立測試範例：

php vendor/bin/codecept generate:test unit MyTest

產生的檔案會放在 tests/MyTest.php。

樣板檔大概長這樣：

<?php

namespace Tests\Unit;

// 有使用才加，用不到可以刪除
use Tests\Support\ .... ;

class ArrayQueueTest extends \Codeception\Test\Unit
{

    protected function _before()
    {
    }

    // tests
    public function testSomeFeature()
    {
    }
}

其中：

• _before()：相當於 PHPUnit 的 setup()。_after() 則是 tearDown()
• testSomeFeature()：只要是 public function 且是 test 開頭，則自動視為 test case

透過 run 可以執行測試：

php vendor/bin/codecept run
Codeception PHP Testing Framework v5.0.10 https://helpukrainewin.org
[Seed] 2070615206

Tests.unit Tests (1) -----------------------------------------------------------------------------------------------------------------------------------------
✔ ArrayQueueTest: Some feature(0.00s)
--------------------------------------------------------------------------------------------------------------------------------------------------------------
Time: 00:00.045, Memory: 10.00 MB