Unit test coverage mapping with Webpack and Angular broken?

Question

After spending hours to fix this issue - maybe somebody have an idea, why my coverage reports doesn't map correctly

I am using:

• Angular 6
• webpack 4
• karma 3.0
• karma-coverage-istanbul-reporter 2.0.4

If you guys have some ideas, i will post further config files.

Answer 1

In my case the solution was simple. I got a hint if something like this happens, the reason is often, that the sourcemap files are not correct.

I run:

ng test --source-map=true

and it works!