an off-by-one error in dm_test_rtc_set_get()?

[Bin Meng]

Hi Simon,

gitlab reported the following test error below:

=================================== FAILURES ===================================
__________________________ test_ut[ut_dm_rtc_set_get] __________________________
test/py/tests/test_ut.py:43: in test_ut
assert output.endswith('Failures: 0')
E AssertionError: assert False
E + where False = <built-in method endswith of str object at
0x7f3bb792dcb0>('Failures: 0')
E + where <built-in method endswith of str object at 0x7f3bb792dcb0> =
'Test: dm_test_rtc_set_get: rtc.c\r\r\nexpected: 27/10/2021
03:38:15\r\r\nactual: 27/10/2021 03:38:14\r\r\ntest/dm/rtc...w, &cmp,
1): Expected 0x0 (0), got 0xffffffea (-22)\r\r\nTest:
dm_test_rtc_set_get: rtc.c (flat tree)\r\r\nFailures: 1'.endswith
----------------------------- Captured stdout call -----------------------------
=>

See https://source.denx.de/u-boot/custodians/u-boot-x86/-/jobs/341905

But the same branch same commit, azure test results passed:
https://dev.azure.com/bmeng/GitHub/_build/results?buildId=460&view=results

It looks like the error is an off-by-one where actual time is 1 second
behind the expected time?

expected: 27/10/2021 03:38:15
actual: 27/10/2021 03:38:14

Is this a known issue?

Regards,
Bin