Unable to run/debug some pytest unit tests.

[wonboyn]

Hi,

We have a bunch of pytest unit tests. These were all working fine.

I noticed today that I can no longer debug some of the test cases from the Testing view. Others however can be debugged.

When it doesn't work, the testing output pane just shows "Finished running tests!" & the debugger never seems to start.

When it does work, the terminal pane opens briefly & the launch command is shown. It then switches to the debug console as per normal.

Our environment is:

• VS Code v1.66.2
• Extensions:
  => IntelliCode v1.2.19
  => Jupyter v2022.3.1000901801
  => Pylance v2022.4.1
  => Python v2022.4.1
  => Remote - Containers v0.231.6

Any help greatly appreciated.

Thanks
Tim

[brettcannon]

Can you get this down to a reproducible code sample? Unfortunately this isn't a lot of information to go on, so I don't quite know how to start helping you.

[brettcannon]

If I run a single test case then I just get the message "Finished running tests!"

We don't print anything out saying "Finished running tests!" Where are you seeing that?

Anecdotally, it feels like VS Code / pytest is caching something related to the existing tests

You can always refresh the tests we find, but otherwise I don't think we cache anything between sessions.

For the existing tests that are having the issue, I do not get the run/debug option in the gutter of the test source code.

That means that pytest isn't finding the test or we are unable to understand the location of the test. Assuming the pytest you are running manually matches the one installed in your environment, you can open a bug, but a reproducer is probably going to be needed to understand what's going on.

[wonboyn]

We don't print anything out saying "Finished running tests!" Where are you seeing that?

In the testing view, if I run a single test case & display the test output (terminal)

[wonboyn]

Whereas if I run a group of tests I get the launch command & actual pytest output shown:

[brettcannon]

The fact that there isn't a comparable "Running tests" line in the above screenshot is suspicious. Can you please open an issue following the instructions at https://aka.ms/pvsc-bug ?

[wonboyn]

Thanks. I've logged it.