I agree with the sentiment expressed in this feature request. The inability to adopt an industry-standard unit testing workflow due to the fragility of the Studio authentication does present a challenge for Roblox developers. The complex setups and frequent breakages with Studio updates hinder the ability to establish a consistent testing process.
In the current state, I find myself resorting to using a VPN to work around the Studio authentication. This is necessary to prevent my security cookie from being invalidated by guaranteeing that my IP matches what is expected before making any Roblox requests. However this has many complications on its own.
With Roblox’s recent acknowledgement of supporting external source control and workflows in the future, I think it is crucial that Roblox takes a step in finding a way to support our development process.
And please do not announce a “Open Cloud Testing Service”… that is not what we want. We just need a way to consistently test our code in the Studio without having to hassle with Studio authentication.