php - 交响乐 4 : WebTestCase fails (Failed to start the session)

Question

我正在尝试设置一个简单的 WebTestCase，它使用 Symfony 4(和 "phpunit/phpunit": "^6.5")。但是，测试失败:

Failed to start the session because headers have already been sent by \vendor\phpunit\phpunit\src\Util\Printer.php; at line 112. (500 Internal Server Error)

测试类:

class ControllerTest extends WebTestCase
{
    public function testGetArticles()
    {
        $client = static::createClient();
        $client->request('GET', '/articles');
        $this->assertEquals(Response::HTTP_OK, $client->getResponse()->getStatusCode());
    }
}

Controller (包含文章路由:

/** @Route(path="articles", name="article_list") */  
public function article_list(Request $request)
{
    return $this->render("article/list.html.twig", array(
        "articles" => $this->entityManager->getRepository("App:Article")->getArticles()
    ));
}

框架.yaml:

framework:
    secret: '%env(APP_SECRET)%'
    csrf_protection: ~
    session:
        # With this config, PHP's native session handling is used
        handler_id: ~

这些测试在 Symfony 3 中运行良好，在 SF 4 中则不然。这个测试或配置有什么问题？

Answer 1

您必须取消注释 config\Packages\test\framework.yaml 中的 session 部分。

session:
        storage_id: session.storage.mock_file