public function testUnlinkService()
{
$user = LeanUser::logInWith("weixin", $this->openToken);
$token = $user->getSessionToken();
$authData = $user->get("authData");
$this->assertEquals($this->openToken, $authData["weixin"]);
$user->unlinkWith("weixin");
// re-login with user session token
$user2 = LeanUser::become($token);
$authData = $user2->get("authData");
$this->assertTrue(!isset($authData["weixin"]));
$user2->destroy();
}
