No code lenses shown for pytest

Visual Studio Code - Insiders: 1.36.0-insider python-insider: 2019.6.21464-rc

Repro steps:

1. Input below code:

def test_passing():
    assert 42 == 42
def test_failure():
    assert 42 == -13

1. Run tests with pytest framework
2. Run all tests

Actual Result: No code lenses shown after run all tests

Expect Result: It should display code lenses

[korn-1c-ru]

I’ve resolved this issue (codelens is visible now) by renaming first letter of the first dir in the workspace path to lowercase. It was sole uppercase letter in the path. But it was uppercase all its lifetime and I had no problems with codelens and debug. Don’t forget to remove cache folders (.pytest_cache, __pycache__).

Is it relevant to Microsoft/vscode#12448?

[ericsnowcurrently]

FWIW, the adapter effectively [1] returns whatever pytest gives it. We have no guarantees about casing or even that the returned root and test source will be in the workspace. So we should always match carefully, as much as possible. What pytest provides will almost always be okay, but the mitigation is worth doing anyway (not big nor complicated).

[1] Currently we normcase but the situation remains either way.