[Bug]: Produced source maps seem to have mismatch with file paths

[sobanieca]

Version

29.1.1

Steps to reproduce

git clone https://github.com/sobanieca/ts-jest-sourcemaps-issue
npm i
npm run debug

Open in chrome chrome://inspect and connect debugger. There will be first initial breakpoint, click continue and proceed to the actual breakpoint from test.ts file.

Expected behavior

I would like to see proper source code (Typescript file), not some compiled version of it.

Actual behavior

In debugger I can see compiled JS code, which makes debugging harder.

Debug log

https://github.com/sobanieca/ts-jest-sourcemaps-issue/blob/main/ts-jest.log

Additional context

I believe this is related to source maps file path mismatch. In sample repository, I've created ts-node project which properly displays code when debugging in Chrome. Comparing produced source maps we can see mismatch between file path and sources. For instance:

and in source map:

While for sample ts-express it's:

and in source map:

I've seen in sourcemap v3 specification (https://docs.google.com/document/d/1U1RGAehQwRypUTovF1KRlpiOFze0b-_2gc6fAH0KY0k/edit?pli=1) that it's not very accurate about how to specify paths, especially for files. But I believe ts-jest should not put full path in sources part. There are some related open issues in sourcemaps rfc: tc39/source-map#44.

Ideally, I would love ts-jest to produce similar source maps as ts-node as in ts-express example in https://github.com/sobanieca/ts-jest-sourcemaps-issue. So instead of full path in sources like /home/... just produce test.ts.

Environment

System:
    OS: Windows 11 10.0.22631
    CPU: (8) x64 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz
  Binaries:
    Node: 20.10.0 - C:\Program Files\nodejs\node.EXE
    npm: 10.2.3 - C:\Program Files\nodejs\npm.CMD
    pnpm: 8.14.0 - C:\Program Files\nodejs\pnpm.CMD

But I've tried on Android (proot-distro Debian 12) and Linux (Debian 12 under WSL in Windows). Attached jest-ts log is from Android.