Codeception + Laravel5：SQLSTATE [HY000] [2002]连接被拒绝

Question

我创建了一个带有代码的全新Laravel 5安装。但我得到一个数据库错误 - 没有使用过数据库？！

我错过了什么？

vendor / bin / codecept运行

Trying to try to test (WelcomeCest::tryToTest)... 

  [PDOException]                             
  SQLSTATE[HY000] [2002] Connection refused  

WelcomeCest.php

<?php
class WelcomeCest
{
    public function _before(FunctionalTester $I)
    {
    }

    public function _after(FunctionalTester $I)
    {
    }

    // tests
    public function tryToTest(FunctionalTester $I)
    {
        $I->amOnPage('/');
        $I->see('Laravel 5');
    }
}

functional.suite.yml

class_name: FunctionalTester
modules:
    enabled:
        # add framework module here
        - \Helper\Functional
        - Laravel5:
            environment_file: .env.testing

.env.testing

APP_ENV=testing
APP_DEBUG=true
APP_KEY=base64:JC1MoDVUEhesAe8ftdJlaia7ijihM1T4ApHPbal4KoM=
APP_URL=http://localhost:8000