如何在不对数据库执行查询的情况下编写存储库测试

Question

我花了很多时间尝试为我的存储库功能创建适当的 Phpunit 测试，但仍然没有成功，所以这就是为什么我向你们寻求帮助

我正在尝试编写一个测试，它正在测试我的存储库功能，但没有连接到数据库

我有这个存储库功能 (Symfony 4)

class RequestRepository extends EntityRepository
{
   public function getCompletedRequestByName($name)
        {
            $requestsStatuses = $this->createQueryBuilder('r')
                ->join('r.domains', 'd', Join::WITH, 'r.id = d.request')
                ->where('r.name = :name')
                ->andWhere('r.status = :completed')
                ->setParameter('name', $name)
                ->setParameter('completed', 'COMPLETED')
                ->getQuery()
                ->getOneOrNullResult();
            return $requestsStatuses;
        }
}

这是我的测试

public function testGetCompletedRequestByName()
{
    $entityM =
        $this->getMockBuilder(EntityManagerInterface::class)
            ->disableOriginalConstructor()
            ->getMockForAbstractClass();

    $classMetaData =
        $this->getMockBuilder(ClassMetadata::class)
            ->disableOriginalConstructor()
            ->getMockForAbstractClass();

    $repo = new RequestRepository($entityM, $classMetaData);
    var_dump($repo->getCompletedRequestByName('antrax.com'));
    die();
}

我得到的错误是

1) App\Repository\RequestRepositoryTest::testGetCompletedRequestByName
Error: Call to a member function select() on null

有人能帮我解决一下，如何编写测试，测试我的存储库功能，而不连接到数据库并执行任何查询。如果您需要任何其他信息，请告诉我，我会提供！谢谢！

Answer 1

我已经为我的案例找到了解决方案。如果有人需要它，这就是我的测试的样子

public function testGetCompletedRequestByName()
{

    $queryBuilder = $this->getMockBuilder(QueryBuilder::class)->disableOriginalConstructor()
        ->setMethods(['setParameter', 'getQuery', 'getOneOrNullResult', 'join', 'andWhere', 'where'])->getMock();

    $queryBuilder->method('getQuery')->willReturnSelf();

    $queryBuilder->method('setParameter')->willReturnCallback(function ($field, $value) use ($queryBuilder){
        if ($field == 'name') {
            $this->assertSame('antrax.com', $value);
        } elseif ($field == 'completed') {
            $this->assertSame('COMPLETED', $value);
        }
        return $queryBuilder;
    });

    $queryBuilder->method('join')->willReturnCallback(function ($field, $alias, $operator, $cond) use ($queryBuilder){

        $this->assertSame('r.domains', $field);
        $this->assertSame('d', $alias);
        $this->assertSame(Join::WITH, $operator);
        $this->assertSame('r.id = d.request', $cond);

        return $queryBuilder;
    });

    $queryBuilder->method('where')->willReturnCallback(function ($cond) use ($queryBuilder){

        $this->assertSame('r.name = :name', $cond);
        return $queryBuilder;
    });

    $queryBuilder->method('andWhere')->willReturnCallback(function ($cond) use ($queryBuilder){

        $this->assertSame('r.status = :completed', $cond);
        return $queryBuilder;
    });

    $repositoryMock =
        $this->getMockBuilder(RequestRepository::class)->disableOriginalConstructor()
            ->setMethods(['createQueryBuilder'])->getMock();

    $repositoryMock->method('createQueryBuilder')->willReturnCallback(function ($alias) use ($queryBuilder){
        $this->assertSame('r', $alias);
        return $queryBuilder;
    });

    $repositoryMock->getCompletedRequestByName('antrax.com');
}

如何在不对数据库执行查询的情况下编写存储库测试

How to write repository test without executing query on db

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