Sokil\Mongo\DocumentTest::testSet_ExistedKey_StoredDocument PHP Method

    public function testSet_ExistedKey_StoredDocument()
    {
        $document = $this->collection->createDocument(array('a' => 'value1'))->save();
        // update existed document
        $document->set('a', 'value2')->save();
        // get document from db
        $document = $this->collection->getDocumentDirectly($document->getId());
        $this->assertEquals('value2', $document->get('a'));
    }