public function testChainedMethods()
{
$someUser = new User();
$result = $someUser->save();
$this->assertTrue($result);
$someUser->val = 1;
$result = $someUser->saveChain();
$this->assertInstanceOf('\\Purekid\\Mongodm\\Model', $result);
$val = $someUser->setValChain(2)->saveChain()->setValChain(5)->saveChain()->getVal();
$this->assertEquals(5, $val);
}