Yii2 Codeception没有执行任何测试

Question

我已尝试在guide

之后使用Yii2基本模板在项目中设置Codeception

在我的项目文件夹中，我有3个单元测试 \测试\单元。这是其中之一

<?php
namespace tests\models;
use app\models\User;

class UserTest extends \Codeception\Test\Unit
{
    public function testFindUserById()
    {
        expect_that($user = User::findIdentity(100));
        expect($user->username)->equals('admin');

        expect_not(User::findIdentity(999));
    }

    public function testFindUserByAccessToken()
    {
        expect_that($user = User::findIdentityByAccessToken('100-token'));
        expect($user->username)->equals('admin');

        expect_not(User::findIdentityByAccessToken('non-existing'));        
    }

    public function testFindUserByUsername()
    {
        expect_that($user = User::findByUsername('admin'));
        expect_not(User::findByUsername('not-admin'));
    }

    /**
     * @depends testFindUserByUsername
     */
    public function testValidateUser($user)
    {
        $user = User::findByUsername('admin');
        expect_that($user->validateAuthKey('test100key'));
        expect_not($user->validateAuthKey('test102key'));

        expect_that($user->validatePassword('admin'));
        expect_not($user->validatePassword('123456'));        
    }

}

按照指南进行到第7步之后，一切都按照指南中的描述完成，但是一旦我尝试运行我的测试，这就是我得到的

codecept run
Codeception PHP Testing Framework v2.3.6
Powered by PHPUnit 5.7.23 by Sebastian Bergmann and contributors.

[1mAcceptance Tests (0) [22m---------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------------

[1mFunctional Tests (0) [22m---------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------------

[1mUnit Tests (0) [22m---------------------------------------------------------------------------------------------------------
------------------------------------------------------------------------------------------------------------------------


Time: 520 ms, Memory: 12.25MB

[30;43mNo tests executed![0m