Sokil\Mongo\DocumentTest::testIsStoredWhenIdSet PHP Method

    public function testIsStoredWhenIdSet()
    {
        // not stored
        $document = $this->collection->createDocument(array('k' => 'v'));
        $document->setId(new \MongoId());
        $this->assertFalse($document->isStored());
        // stored
        $document->save();
        $this->assertTrue($document->isStored());
    }