@lmazuel this is possible today.
Please try the following and let me know how it goes.

• Open your launch.json,
• find the relevant launch configuration
• add the entry DebugStdLib into the array debugOptions.

Please note, this is only an example, all you need to do is add DebugStdLib into the existing list:

"debugOptions": [
    "RedirectOutput","DebugStdLib"
],

Please let me know how this goes.

Hi the "Debug" button with pytest enabled":

So I don't have a launch.json. Have I?

Aah, you're debugging a unit test. That's new information.
Currently we don't support debugging non-user code when debugging unit tests.
That would be a new feature.

Sorry, didn't realize it was relevant information :/

I tried using the "Python" launcher and it works! At least I have a workaround when needed in the meantime. Thanks!

Sorry, didn't realize it was relevant information :/

No worries, at least we got to the bottom of it very quickly. Would have been a another story if you hadn't sent the screen shots. lol.

Will keep you posted.

Hey @brettcannon

quite sometime since its closed
but still not sure if I can "debug" my unit tests?

Asked it on StackOverflow but no responses
so last option here :)

https://stackoverflow.com/questions/52867639/vscode-python-debug-with-unit-tests

Thanks!

@tzookb this issue is actually still open so I'm not sure what you're referring to as "closed".

As for debugging a test, you can always click the "Debug Test" code lens for discovered tests. This issue is about setting up specific launch.json configurations for tests.

Check launch.json for the existence of a debug configuration named "Python: Unit Tests", if it exists, use it, if not generate an in-memory one as we do today.

Document a sample launch.json for providing additional unit test settings, including: setting environment variables, enable debugStdLib.

See src/client/unittests/common/debugLauncher.ts.

Created a section in launch.json as follows:

        {
            "type": "python",
            "request": "test",
            "name": "wow",
            "env": {
                "HELLO": "HMM"
            }
        }

Got the following error in VSC:
could not load unit test config from launch.json