Anticipating the desired data types for Jasmine arguments

Lately, I've been in the process of upgrading my Angular version from 10 to 13 in order to utilize TypeScript 4.6. However, during this upgrade, I made some errors with types in my tests and I'm wondering if others have encountered similar issues. The specific error message I'm encountering is:

Argument of type '(state: ExampleStateModel) => Example' is not assignable to parameter of type 'StateToken<unknown> | AsymmetricMatcher<any>'.ts(2345)

To make all my tests compile and run, I resorted to using @ts-ignore, but I'm hoping for a better solution. Here's an example of code that fails:

store = TestBed.inject(Store);
spyOn(store, 'selectSnapshot')
   .withArgs(ExampleState.clinic).and.returnValue({ id: 1 })

And here's an example of code that works:

store = TestBed.inject(Store);
// @ts-ignore
spyOn(store, 'selectSnapshot').withArgs(ExampleState.clinic).and.returnValue({ id: 1 })

For reference, here's the Example State code snippet:

@Injectable()
export class ExampleState {
  @Selector()
  public static clinic(state: ExampleStateModel) {
    return state.clinic;
  }
}

I also attempted running

npm i -D jasmine@latest jasmine-core@latest @types/jasmine@latest

My main question is related to how to properly use withArgs() with an ngxs store. Any guidance or assistance would be greatly appreciated.

Answer №1

After struggling to find the right versions for all my packages, I eventually decided to simply use @ts-ignore. It ended up being a much simpler solution that just works.

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