Symfony 3.4 -将parameters.yml/config_test.yml中的变量注入测试用例

# app/config/parameters.yml
parameters:
    my_parameter: 'value_for_dev'

# app/config/config_test.yml
imports:
    - { resource: parameters.yml }

parameters:
    my_parameter: 'value_for_test'

// src/AppBundle/Service/MyService.php
namespace AppBundle\Service;

class MyService
{
    private $myParameter;

    public function __construct($myParameter)
    {
        $this->myParameter = $myParameter;
    }

    public function getMyParameter()
    {
        return $this->myParameter;
    }
}

# app/config/services.yml
services:
    app.my_service:
        class: AppBundle\Service\MyService
        arguments: ['@=service("AppBundle\\Service\\MyService").getMyParameter()']

// tests/AppBundle/Service/MyServiceTest.php
namespace AppBundle\Tests\Service;

use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
use AppBundle\Service\MyService;

class MyServiceTest extends KernelTestCase
{
    public function testMyParameter()
    {
        self::bootKernel();
        $myService = static::$kernel->getContainer()->get('app.my_service');
        $this->assertEquals('value_for_test', $myService->getMyParameter());
    }
}

php bin/console cache:clear --env=test