public function test_validates()
{
$user = new Users();
$user->username = '******';
$user->password = '******';
$user->access_token = 'token';
$user->save();
/* @var $user_db Users */
$user_db = Users::getUserByUsername('yurii');
$this->assertTrue($user_db->validatePassword('pass'));
$this->assertTrue($user_db->validateAuthKey($user->auth_key));
}