Fix Alipay user_id upgrade open_id issue

[Loongle]

References: https://opendocs.alipay.com/common/0ai2i6?pathHash=cba76ebf

[martincostello]

References: https://opendocs.alipay.com/common/0ai2i6?pathHash=cba76ebf

Could you please summarise this document into English as to what is being changed and why?

Changes also need tests.

[Loongle]

• The user identifier in the application will be unified to OpenID in the future, while the internal system identifier UserID will be upgraded and expanded.

• Using OpenID as early as possible can help avoid the impact of UserID changes and reduce development costs.

• Note: Future Alipay products will only support OpenID.

Additionally, how can I add test cases? I have already applied the changes to my production environment.

[martincostello]

Additionally, how can I add test cases?

The existing tests for Alipay are here.

You can see we stub out the responses, so you'd have to extend the tests to exercise these new changes.

[Loongle]

How do I modify options.ClientId in my tests? Currently OnCreatingTicket_Is_Raised_By_Handler_Using_Custom_Events_Type and OnCreatingTicket_Is_Raised_By_Handler need to return normal contents. I need to test the contents of the exception

[Loongle]

I couldn't find a test for exceptional data. I also hope I can provide an elegant test

[Loongle]

The extended test of Alipay has been added

[Loongle]

Could you please review it again? @martincostello

[martincostello]

Thanks for your contribution - this change will go out when #1020 is completed.

If you want to use it before then, then please consume the prerelease packages from our MyGet feed.

[martincostello]

Thanks again for your contribution - the changes are now available from NuGet.org in v9.1.0.