uploader: fix util_test internally
#2978
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Summary: We mocked out the time zone to UTC for only one of two time-related function calls. This was asymptomatic externally because [Bazel’s test runner sets the `TZ` environment variable to `UTC`][1], but the internal test runner has different semantics. Test Plan: Patching this into a sync CL fixes broken tests. [1]: https://docs.bazel.build/versions/1.2.0/test-encyclopedia.html#initial-conditions wchargin-branch: util-test-tz
psybuzz
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Nov 27, 2019
wchargin
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Jan 27, 2020
Summary: Follow-up to #2978, which added explicit configuration of `TZ=UTC`. In cPython 3, the time zone used by `datetime.datetime.fromtimestamp` is [cached when `time` is imported][1] unless explicitly reset, so mocking the environment variable is no longer sufficient. We now call `tzset` ourselves; we could also just set `TZ=UTC` before importing `datetime`, but this seems cleaner. [1]: https://github.com/python/cpython/blob/2528a6c3d0660c03ae43d796628462ccf8e58190/Modules/timemodule.c#L1752-L1763 Test Plan: A test sync shows that this test passes in both Python 2 and Python 3, whereas it previously only passed in Python 2. wchargin-branch: util-test-tzset
wchargin
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Jan 28, 2020
Summary: Follow-up to #2978, which added explicit configuration of `TZ=UTC`. In cPython 3, the time zone used by `datetime.datetime.fromtimestamp` is [cached when `time` is imported][1] unless explicitly reset, so mocking the environment variable is no longer sufficient. We now call `tzset` ourselves; we could also just set `TZ=UTC` before importing `datetime`, but this seems cleaner. [1]: https://github.com/python/cpython/blob/2528a6c3d0660c03ae43d796628462ccf8e58190/Modules/timemodule.c#L1752-L1763 Test Plan: A test sync shows that this test passes in both Python 2 and Python 3, whereas it previously only passed in Python 2. wchargin-branch: util-test-tzset
bileschi
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Mar 3, 2020
Summary: Follow-up to tensorflow#2978, which added explicit configuration of `TZ=UTC`. In cPython 3, the time zone used by `datetime.datetime.fromtimestamp` is [cached when `time` is imported][1] unless explicitly reset, so mocking the environment variable is no longer sufficient. We now call `tzset` ourselves; we could also just set `TZ=UTC` before importing `datetime`, but this seems cleaner. [1]: https://github.com/python/cpython/blob/2528a6c3d0660c03ae43d796628462ccf8e58190/Modules/timemodule.c#L1752-L1763 Test Plan: A test sync shows that this test passes in both Python 2 and Python 3, whereas it previously only passed in Python 2. wchargin-branch: util-test-tzset
nfelt
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Mar 4, 2020
Summary: Follow-up to #2978, which added explicit configuration of `TZ=UTC`. In cPython 3, the time zone used by `datetime.datetime.fromtimestamp` is [cached when `time` is imported][1] unless explicitly reset, so mocking the environment variable is no longer sufficient. We now call `tzset` ourselves; we could also just set `TZ=UTC` before importing `datetime`, but this seems cleaner. [1]: https://github.com/python/cpython/blob/2528a6c3d0660c03ae43d796628462ccf8e58190/Modules/timemodule.c#L1752-L1763 Test Plan: A test sync shows that this test passes in both Python 2 and Python 3, whereas it previously only passed in Python 2. wchargin-branch: util-test-tzset
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Summary:
We mocked out the time zone to UTC for only one of two time-related
function calls. This was asymptomatic externally because Bazel’s test
runner sets the
TZenvironment variable toUTC, but the internaltest runner has different semantics.
Test Plan:
Patching this into a sync CL fixes broken tests.
wchargin-branch: util-test-tz