Sokil\Mongo\DocumentRelationTest::testRemoveRelation_WronkRelationType PHP Method

    public function testRemoveRelation_WronkRelationType()
    {
        $wrongRelCollection = $this->database->getCollection('wrongRel');
        $enginesCollection = $this->database->getCollection('engines');
        $engineDocument = $enginesCollection->createDocument(array('power' => 300))->save();
        // add documents
        $wrongRelDocument = $wrongRelCollection->createDocument(array('some_id' => 42))->save();
        $wrongRelDocument->removeRelation('engine', $engineDocument);
    }