Type PromiseMock<T> is not assignable to type Promise<T>

[martindzejky]

Hello, PromiseMock is not assignable to a variable or a parameter that expects the type Promise. The error returned by Typescript is this:

Property '[Symbol.toStringTag]' is missing in type 'PromiseMock<T>' but required in 'Promise<T>'

This makes it hard to use the promise mock in places where a real promise is expected, resulting in us having to cast the value to any. 😞

Versions

• promise-sync@1.1.7
• typescript@3.6.4

[slavik57]

I'm sorry, but I don't have the time capacity to fix this since it would require a lot of changes since the Promise interface has changed a lot in the newer versions of Typescript.
If you can create a pull request with the minimal needed changes and tests that pass I would review it and merge it.

[martindzejky]

Hello @slavik57 and anyone who ends here in the future. I tried making a PR for your repository but I just could not make it work. So, I ended up making my own repository and library for a promise mock which implements the full Typescript Promise<T> interface. I linked back to your original implementation.

https://github.com/martindzejky/promise-mock

If you need me to add any information to my repo, just let me know. Cheers!