Unable to run pytest in rewrite, fails with wrong testID #21397

Trying to use pytest in the test explorer with the following folder: dummy.zip

On the stable release of the extension, tests are not discovered at all. On the rewrite (which can be opted into by the setting "python.experiments.optInto": ["pythonTestAdapter"],) the tests are discovered correctly but running the tests does not work.

Error on run is: (no name '/Users/eleanorboyd/Downloads/dummy 2/tests/test_dummy.py::test_dummy_sum' in any of [<Module tests/test_dummy.py>])

Therefore the test ids are somehow being confused.

From the integrated terminal, the following work successfully:
pytest "/Users/eleanorboyd/Downloads/dummy 2/tests/test_dummy.py::test_dummy_sum" and pytest tests/test_dummy.py::test_dummy_sum .