如何在symfony 3.4中从测试类传递ContainerInterface

use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;

class MyTest extends WebTestCase
{
    public function testContainerInterface()
    {
        // 获取容器实例
        $container = self::$container;

        // 从容器中获取所需的服务或参数
        $service = $container->get('my_service');
        $parameter = $container->getParameter('my_parameter');

        // 进行断言或其他测试操作
        $this->assertInstanceOf(ContainerInterface::class, $container);
        $this->assertInstanceOf(MyService::class, $service);
        $this->assertEquals('my_value', $parameter);
    }
}

use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;

class MyTest extends WebTestCase
{
    protected function setUp(): void
    {
        // 设置测试环境的容器
        self::bootKernel();
    }

    // ...
}