When freezegun is used at a class level, the pytest durations report shows invalid times

[stevenbharris]

Here's a real example with fake paths illustrating the problem:

============================ slowest test durations ============================
1355132.16s teardown application/path/test_security_record
61.27s setup    application/path/test_viewing_client_statements
60.38s setup    application/path/test_start_date
60.23s setup    application/path/test_send
...

1355132.16s corresponds to over 15 days.

I suspect that the pytest durations report logic is relying on datetime.datetime.now() which is patched by freezegun resulting in the report showing incorrect durations.

I don't think this issue is w/in freezegun but it does result in the above reported undesirable side effect.

[DavidS-cloud]

Yeah, can confirm. I've been running into this too, here's my --junitxml results with class-level freeze_time:

<?xml version="1.0" encoding="utf-8"?>
<testsuites>
    <testsuite errors="0" failures="0" hostname="0fa262bea4da" name="pytest" skipped="0" tests="8" time="7.787" timestamp="2022-08-01T13:26:39.258110">
        <testcase classname="foo.TestViewSet" name="test_1_something" time="1652811173.470" />
        <testcase classname="foo.TestViewSet" name="test_2_something" time="0.000" />
        <testcase classname="foo.TestViewSet" name="test_3_something" time="0.000" />
        <testcase classname="foo.TestViewSet" name="test_4_something" time="0.000" />
        <testcase classname="foo.TestViewSet" name="test_5_something" time="0.000" />
        <testcase classname="foo.TestViewSet" name="test_6_something" time="0.000" />
        <testcase classname="foo.TestViewSet" name="test_7_something" time="0.000" />
        <testcase classname="foo.TestViewSet" name="test_8_something" time="-1652811169.381" />
    </testsuite>
</testsuites>

and with method-level freeze_time:

<?xml version="1.0" encoding="utf-8"?>
<testsuites>
    <testsuite errors="0" failures="0" hostname="51f569add280" name="pytest" skipped="0" tests="8" time="7.886" timestamp="2022-08-01T13:29:47.579062">
        <testcase classname="foo.TestViewSet" name="test_1_something" time="3.713" />
        <testcase classname="foo.TestViewSet" name="test_2_something" time="0.085" />
        <testcase classname="foo.TestViewSet" name="test_3_something" time="0.081" />
        <testcase classname="foo.TestViewSet" name="test_4_something" time="0.081" />
        <testcase classname="foo.TestViewSet" name="test_5_something" time="0.074" />
        <testcase classname="foo.TestViewSet" name="test_6_something" time="0.055" />
        <testcase classname="foo.TestViewSet" name="test_7_something" time="0.082" />
        <testcase classname="foo.TestViewSet" name="test_8_something" time="0.048" />
    </testsuite>
</testsuites>