How to write repository test without executing query on db - doctrine-orm

Question

I have spent my fare share of hours trying to create a proper Phpunit test for my repository function and still no success, so that's why I'm turning on you guys for help
I'm trying to write a test, which is testing my repository function, without connecting to database
I have this repository function (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;
}
}
And this is my test
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();
}
And the error I'm getting is
1) App\Repository\RequestRepositoryTest::testGetCompletedRequestByName
Error: Call to a member function select() on null
Can some one please help me out, how to write a test, which test my repository function, without connection to DB and executing any queries. If you need any additional informations, please let me know and I will provide! Thank you!

Answer 1

I have found a solution for my case. If any body need's it, this is how my test looks like
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');
}