Question

我正在尝试创建一个基本上是Stripe包装器的服务。在构造方法中，我想通过服务的构造方法传递api secret和publishable键，该方法在.env文件中设置为环境变量。但是每次我在这个包装器上运行phpunit测试时，我都会收到这个错误：

Missing argument 1 for AppBundle\Util\StripeService::__construct(), called in /Users/name/Sites/app/tests/AppBundle/Util/StripeServiceTest.php

这是我的设置：

# .env
SYMFONY__STRIPE_SECRET=''
SYMFONY__STRIPE_PUBLISHABLE=''

# config_test.yml
parameters:
stripe.secret: '%env(stripe_secret)%'
stripe.publishable: '%env(stripe_publishable)%'

services:
    app.stripe_service:
        class: AppBundle\Util\StripeService
        arguments: ['%stripe.secret%', '%stripe.publishable%']

# StripeService.php
namespace AppBundle\Util;
class StripeService {
    public function __construct($secretKey, $publishableKey)
    {
        $this->secretKey = $secretKey;
        $this->$publishableKey = $publishableKey;
    }

# StripeServiceTest.php
namespace Tests\AppBundle\Util;

use AppBundle\Util\StripeService;
use PHPUnit\Framework\TestCase;

class StripeServiceTest extends TestCase {

    protected function setUp()
    {
        require_once realpath(__DIR__ . '/../../../app/AppKernel.php');
        $kernel = new \AppKernel('test', true);
        $kernel->boot();
    }

    public function testFindEvent()
    {
        $stripe = new StripeService();
        $stripe->findEvent('test');
    }
}

# AppKernel.php
use Symfony\Component\HttpKernel\Kernel;
use Symfony\Component\Config\Loader\LoaderInterface;

class AppKernel extends Kernel
{
    public function registerContainerConfiguration(LoaderInterface $loader)
    {
        $loader->load($this->getRootDir().'/config/config_'.$this->getEnvironment().'.yml');

        # This is where I am loading in the variables from .env
        try {
            (new Dotenv\Dotenv(realpath(__DIR__ . '/..')))->load();
            $envParameters = $this->getEnvParameters();
            $loader->load(function($container) use($envParameters) {
            $container->getParameterBag()->add($envParameters);
            });
        } catch (Dotenv\Exception\InvalidPathException $e) {
        }
    }
}

我按照docs中有关服务容器的说明进行了操作，并按照[此博客文章]使用vlucas / phpdotenv从.env文件中获取变量。我错过了什么，或者当我的测试初始化new StripeService()它无法获取config_test.yml中列出的参数时，我错误地设置了一些内容？

Answer 1

StripeServiceTest应如下所示：

class StripeServiceTest extends TestCase {

protected $container;

protected function setUp()
{
    require_once realpath(__DIR__ . '/../../../app/AppKernel.php');
    $kernel = new \AppKernel('test', true);
    $kernel->boot();
    $this->container = $kernel->getContainer();
}

public function testFindEvent()
{
    $stripe = $this->container->get('app.stripe_service');
    $stripe->findEvent('test');
}
}

Answer 2

您尝试实例化类（new StripeService()）而未传递StripeService::__constuctor()

中定义的必需参数

如果您想使用在config_test.yml中定义的服务实例，则需要使用“容器”

...
$stripeService = $kernel->getContainer()->get('app.stripe_service');

这将为您提供已定义参数的实例。

Symfony 3.2参数未传递给服务的__construct方法

2 个答案: