Slowest test times from pytest are incorrect

• Python 3.7
• pytest==4.2.0
• freezegun==0.3.11

import pytest
from freezegun import freeze_time
from datetime import timedelta
@pytest.fixture
def freezer():
  with freeze_time(
    # ignore=['_pytest.runner']
  ) as f:
    yield f
def test(freezer):
  freezer.tick(delta=timedelta(seconds=60)

pytest --durations 1
============= slowest 1 test durations ==============
60.00s call     test_blah.py::test
============= 1 passed in 0.06 seconds ==============

If I uncomment the ignore line, the durations match what I expect:

============= slowest 1 test durations ==============
0.03s setup    test_blah.py::test
============= 1 passed in 0.08 seconds ==============

I also see in the master branch _pytest.runner. was added. But this doesn’t work for me. Perhaps we should also add _pytest.runner?

[jerry-git]

Hello! Any update on #288? I ran into this with pytest-split which utilises duration related information for splitting the full test suite into “optimal sub suites”. I basically needed to add some ugly hacks to cope with incorrect durations due to freezegun (which is an awesome library btw 👍).

[blueyed]

related: https://github.com/spulec/freezegun/issues/463