Sokil\Mongo\DocumentRelationTest::testGetRelated_WrongRelationType PHP Method

    public function testGetRelated_WrongRelationType()
    {
        $wrongRelCollection = $this->database->getCollection('wrongRel');
        // add documents
        $wrongRelDocument = $wrongRelCollection->createDocument(array('some_id' => 42))->save();
        $wrongRelDocument->engine;
    }