slim3中的控制器单元测试 [英] Controller unit test in slim3

问题描述

首先，我想说-我是PHP(phpunit)单元测试的新手. 在我的新项目(slim3框架)中，我想测试我的控制器，例如LoginController.

At the outset, I would like to say - I'm new in unit testing in PHP (phpunit). In my new project (slim3 framework) I would like to test my controllers for example LoginController.

我的想法是(在单元测试方法中)

My idea is (in unit test method)

• 创建LoginController
的实例
• 模拟控制器(DI)中的某些服务
• 执行方法，该方法是对请求的响应(在我的控制器中，方法为__invoke)

• Create instance of LoginController
• Mock some services in controller (DI)
• Execute method which is response for request (in my controllers method __invoke)

我的问题是关于__invoke方法的参数. 在Slim3中，请求的可调用方法具有两个第一个参数:

My problem is about parameters for __invoke method. In Slim3 callable method for request has two first params:

RequestInterface $request和ResponseInterface $response

如何在单元测试课程中创建此参数?我正在寻找有关此问题的一些示例，但没有成功.

How can I create this parameters in my unit test class? I was searching for some examples for this issue but without success.

有什么建议吗?

我在Slim3测试中找到了一些代码来模拟请求:

I've found some code in Slim3 tests to mock request:

protected function requestFactory()
{
    $uri = Uri::createFromString('https://example.com:443/foo/bar?abc=123');
    $headers = new Headers();
    $cookies = array(
        'user' => 'john',
        'id' => '123',
    );
    $env = Slim\Http\Environment::mock();
    $serverParams = $env->all();
    $body = new Body(fopen('php://temp', 'r+'));
    $request = new Request('GET', $uri, $headers, $cookies, $serverParams, $body);

    return $request;
}

但是我不确定这是个好方法.

But I'm not sure that is good way.

感谢您的帮助

推荐答案

我在这里写了一个解决方案: https://akrabat.com/testing-slim-framework-actions/

I wrote up one solution here: https://akrabat.com/testing-slim-framework-actions/

我使用Environment::mock()创建一个$request，然后可以运行该动作.使每个路由都可调用为一个将所有依赖项都注入到构造函数的类，这也使这一切变得更加容易.

I use Environment::mock() to create a $request and then I can run the action. Making each route callable a class where all dependencies are injected into the constructor makes this all much easier too.

本质上，测试看起来像这样:

Essentially, a test looks like this:

class EchoActionTest extends \PHPUnit_Framework_TestCase
{
    public function testGetRequestReturnsEcho()
    {
        // instantiate action
        $action = new \App\Action\EchoAction();

        // We need a request and response object to invoke the action
        $environment = \Slim\Http\Environment::mock([
            'REQUEST_METHOD' => 'GET',
            'REQUEST_URI' => '/echo',
            'QUERY_STRING'=>'foo=bar']
        );
        $request = \Slim\Http\Request::createFromEnvironment($environment);
        $response = new \Slim\Http\Response();

        // run the controller action and test it
        $response = $action($request, $response, []);
        $this->assertSame((string)$response->getBody(), '{"foo":"bar"}');
    }
}

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