带有构造函数的 Symfony 3 单元测试表单

Question

我正在尝试对具有 2 个依赖项（ObjectManager 和 EventDispatcher）的表单进行单元测试

我曾尝试关注 official doc 但没有成功。

我的测试文件：

<?php

namespace Lch\MediaBundle\Tests\Form;

use Lch\MediaBundle\Form\AddImageType;
use Symfony\Component\EventDispatcher\EventDispatcher;
use Doctrine\Common\Persistence\ObjectManager;
use Symfony\Component\Form\PreloadedExtension;
use Symfony\Component\Form\Test\TypeTestCase;

class AddImageTypeTest extends TypeTestCase
{
    private $entityManager;
    private $eventDispatcher;

    protected function setUp()
    {
        $this->entityManager = $this->createMock(ObjectManager::class);
        $this->eventDispatcher = $this->createMock(EventDispatcher::class);

        parent::setUp();
    }

    protected function getExtensions()
    {
        $type = new AddImageType($this->entityManager, $this->eventDispatcher);

        return array(
            new PreloadedExtension(array($type), array()),
        );
    }

    public function testSubmitValidData()
    {
        $form = $this->factory->create(AddImageType::class);
    }
}

我在执行测试套件时遇到此错误：

TypeError: Argument 1 passed to LCH\MediaBundle\Form\AddImageType::__construct() must implement interface Doctrine\Common\Persistence\ObjectManager, none given, called in /home/matthieu/www/lch/media/src/Lch/MediaBundle/vendor/symfony/symfony/src/Symfony/Component/Form/FormRegistry.php on line 85

我在 getExtensions 方法中所做的工作似乎不起作用，但无法弄清楚。

有人知道吗？

Answer 1

ObjectManager 是一个接口，这意味着您不能将其实例化或直接传递给其他构造函数。

如果您使用的是Doctrine，请将其替换为实现了ObjectManager接口且可以实例化的Doctrine\ORM\EntityManager，否则请将其替换为您自己的实现。

<?php

namespace Lch\MediaBundle\Tests\Form;

use Lch\MediaBundle\Form\AddImageType;
use Symfony\Component\EventDispatcher\EventDispatcher;
use Doctrine\ORM\EntityManager;
use Symfony\Component\Form\PreloadedExtension;
use Symfony\Component\Form\Test\TypeTestCase;

class AddImageTypeTest extends TypeTestCase
{
    private $entityManager;
    private $eventDispatcher;

    protected function setUp()
    {
        $this->entityManager = $this->createMock(EntityManager::class);
        $this->eventDispatcher = $this->createMock(EventDispatcher::class);

        parent::setUp();
    }

    protected function getExtensions()
    {
        $type = new AddImageType($this->entityManager, $this->eventDispatcher);

        return array(
            new PreloadedExtension(array($type), array()),
        );
    }

    public function testSubmitValidData()
    {
        $form = $this->factory->create(AddImageType::class);
    }
}

带有构造函数的 Symfony 3 单元测试表单

Symfony 3 unit test form with constructor

php

unit-testing

symfony-forms

symfony