Runing test I get this error TypeError: Cannot read properties of undefined (reading 'ngModule') I dont exactly know what is causing this error, but google said circular dependency issue but I am n...

Follow up on this solution I've build a library with a component and a directive, which normally causes an import cycle. Component import { Component } from '@angular/core'; @Component({ selector...

After upgrading Angular to v 13 when I try to run my tests in the jest environment I have an error: Cannot set base providers because it has already been called import 'jest-preset-angular/setup-je...

I have an nx workspace that I am trying to move to jest. At first I got an error about PointerEvent not being defined. the proposed workaround for that was to do an Object.defineProperty(window, 'P...

Reading through this link i got to know that the equivalent of and.callFake is mockImplementation and and.returnValue is mockReturnValue. Similarly is there an equivalent of and.callThrough() in...

I am testing an angular project with jest (using jest-preset-angular). When collecting coverage, I get an uncovered branch and I don't understand why. I can reproduce the problem with 3 files. so...