Sokil\Mongo\DocumentTest::testCreateReference PHP Method

    public function testCreateReference()
    {
        $document = $this->collection->createDocument(array('param' => 'value'))->save();
        $reference = $document->createReference();
        $this->assertSame(array('$ref' => 'phpmongo_test_collection', '$id' => $document->getId()), $reference);
    }