使用 assertEquals 测试 Doctrine2 实体会导致致命的内存不足错误

Question

我有一个使用 Doctrine2 自定义存储库和 Doctrine Fixtures 的 PHPUnit 测试。我想测试一个查询是否从我的夹具中返回了一个预期的实体。

但是当我尝试$this->assertEquals($expectedEntity, $result); 时，我得到了Fatal error: out of memory。我猜它正在递归到所有关系和实体管理器等等。

有没有好方法来测试这种相等性？我应该只对实体的 ID 使用 assertEquals 吗？

编辑： 这是测试代码

<?php
use Liip\FunctionalTestBundle\Test\WebTestCase;

class AbstractRepositoryTestCase extends WebTestCase
{
    /**
     * @var Doctrine\ORM\EntityRepository 
     */
    protected $repo;

    /**
     * @var Doctrine\Common\DataFixtures\Executor\AbstractExecutor
     */
    protected $fixtureExecutor;

    /**
     * @var string Which repository to load, overriden by derived class
     */
    protected $repoName;

    /**
     * @var array Fixture classes to load on setup
     */
    protected $fixtures = array();

    public function setUp()
    {
        $kernel = static::createKernel();
        $this->repo = $kernel->boot();
        $this->repo = $kernel->getContainer()
                             ->get('doctrine.orm.entity_manager')
                             ->getRepository($this->repoName);

        $this->fixtureExecutor = $this->loadFixtures($this->getFixtures());
    }

    public function getFixtures()
    {
        return $this->fixtures;
    }
}

class ArticleRepositoryTest extends AbstractRepositoryTestCase
{
    /**
     * @var string Which repository to load, overriden by derived class
     */
    protected $repoName = 'MyMainBundle:Article';

    /**
     * @var array Fixture classes to load on setup
     */
    protected $fixtures = array(
        'My\MainBundle\DataFixtures\ORM\LoadUserData',
        'My\MainBundle\DataFixtures\ORM\LoadArticleData',
        'My\MainBundle\DataFixtures\ORM\LoadFeedsData',
        'My\MainBundle\DataFixtures\ORM\LoadFeedDataData',
        'My\MainBundle\DataFixtures\ORM\LoadUserReadArticleData',
    );
    public function testGetNextArticle_ExpectCorrect()
    {
        /** @var Doctrine\Common\DataFixtures\ReferenceRepository **/
        $refRepo = $this->fixtureExecutor->getReferenceRepository();

        /** @var FeedStream\MainBundle\Entity\Article **/
        $curr = $refRepo->getReference('feed-1-article-3');
        $expected = $refRepo->getReference('feed-1-article-2');
        $expected2 = $refRepo->getReference('feed-1-article-1');
        $next = $this->repo->getNextArticle($curr->getFeed()->getId(), $curr);

        $this->assertNotNull($next);
        // this is the part that doesn't work
        $this->assertEquals($expected, $next);
        // this is the code I've used instead
        $this->assertEquals($expected->getId(), $next->getId());
    }
}

这里是实体（getter/setter 省略以节省空间）

<?php

namespace My\MainBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * My\MainBundle\Entity\Article
 *
 * @ORM\Table(name="articles", uniqueConstraints={
 *   @ORM\UniqueConstraint(name="feed_guid", columns={"feed_id", "guid"}),
 *   @ORM\UniqueConstraint(name="article_slug_unique", columns={"feed_id", "slug"})
 * })
 * @ORM\Entity(repositoryClass="My\MainBundle\Repository\ArticleRepository")
 */
class Article
{
    /**
     * @var integer $id
     *
     * @ORM\Column(name="id", type="integer", nullable=false)
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="IDENTITY")
     */
    private $id;

    /**
     * @var string $guid
     *
     * @ORM\Column(name="guid", type="string", length=255, nullable=false)
     */
    private $guid;

    /**
     * @var string $title
     *
     * @ORM\Column(name="title", type="string", length=255, nullable=false)
     */
    private $title;

    /**
     * @var datetime $pubDate
     *
     * @ORM\Column(name="pub_date", type="datetime", nullable=true)
     */
    private $pubDate;

    /**
     * @var text $summary
     *
     * @ORM\Column(name="summary", type="text", nullable=true)
     */
    private $summary;

    /**
     * @var text $content
     *
     * @ORM\Column(name="content", type="text", nullable=false)
     */
    private $content;

    /**
     * @var string $sourceUrl
     *
     * @ORM\Column(name="source_url", type="string", length=255, nullable=true)
     */
    private $sourceUrl;

    /**
     * @var string $commentUrl
     *
     * @ORM\Column(name="comment_url", type="string", length=255, nullable=true)
     */
    private $commentUrl;

    /**
     * @var string $slug
     *
     * @ORM\Column(name="slug", type="string", length=64, nullable=false)
     */
    private $slug;

    /**
     * @var string $thumbnailFile
     *
     * @ORM\Column(name="thumbnail_file", type="string", length=64, nullable=true)
     */
    private $thumbnailFile;

    /**
     * @var My\MainBundle\Entity\ArticleEnclosure
     *
     * @ORM\ManyToOne(targetEntity="My\MainBundle\Entity\ArticleEnclosure")
     * @ORM\JoinColumns({
     *   @ORM\JoinColumn(name="thumbnail_enclosure_id", referencedColumnName="id")
     * })
     */
    private $thumbnailEnclosure;

    /**
     * @var My\MainBundle\Entity\ArticleImageScrape
     *
     * @ORM\ManyToOne(targetEntity="My\MainBundle\Entity\ArticleImageScrape")
     * @ORM\JoinColumns({
     *   @ORM\JoinColumn(name="thumbnail_scrape_id", referencedColumnName="id", unique=false)
     * })
     */
    private $thumbnailScrape;

    /**
     * @var My\MainBundle\Entity\ArticleBitly
     *
     * @ORM\OneToOne(targetEntity="My\MainBundle\Entity\ArticleBitly", mappedBy="article", orphanRemoval=true)
     */
    private $bitly;

    /**
     * @var My\MainBundle\Entity\ArticleEnclosure
     *
     * @ORM\OneToMany(targetEntity="My\MainBundle\Entity\ArticleEnclosure", mappedBy="article", orphanRemoval=true)
     */
    private $enclosures;

    /**
     * @var My\MainBundle\Entity\ArticleImageScrape
     *
     * @ORM\OneToMany(targetEntity="My\MainBundle\Entity\ArticleImageScrape", mappedBy="article", orphanRemoval=true)
     */
    private $scrapes;

    /**
     * @var My\MainBundle\Entity\ArticleLink
     *
     * @ORM\OneToMany(targetEntity="My\MainBundle\Entity\ArticleLink", mappedBy="article", orphanRemoval=true)
     */
    private $links;

    /**
     * @var My\MainBundle\Entity\Feed
     *
     * @ORM\ManyToOne(targetEntity="My\MainBundle\Entity\Feed", inversedBy="articles")
     * @ORM\JoinColumns({
     *   @ORM\JoinColumn(name="feed_id", referencedColumnName="id", nullable=false)
     * })
     */
    private $feed;

    /**
     * @var My\MainBundle\Entity\ArticleAuthor
     *
     * @ORM\ManyToOne(targetEntity="My\MainBundle\Entity\ArticleAuthor", inversedBy="articles")
     * @ORM\JoinColumns({
     *   @ORM\JoinColumn(name="author_id", referencedColumnName="id")
     * })
     */
    private $author;

    public function __construct()
    {
        $this->links = new \Doctrine\Common\Collections\ArrayCollection();
    }
}

Answer 1

除了 ID 之外，您还应该测试类。