Fix test_tzlocal_offset_equal[GMT-tzoff1]#928
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pganssle
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Nov 3, 2019
test_tzlocal_offset_equal[GMT-tzoff1] fails if a system does not have a defined (installed) GMT timezone, for example if "Link Etc/GMT GMT" is not defined in the zoneinfo configuration: > assert tz.tzlocal() == tzoff E AssertionError: assert tzlocal() == tzoffset(u'GMT', 0) E -tzlocal() E +tzoffset(u'GMT', 0) An example of such a configuration is FreeBSD, who's default timezone is UTC [1][2]. This configuration results in any "non-present" or undefined TZ name being returned/processed as the default timezone name (in FreeBSD's case, UTC). Further, POSIX does not recognize [3] TZ=GMT or TZ=UTC as valid values because they neither start with a colon nor contain a numeric offset hour field. Accordingly, update the GMT value for this parametrized test to GMT0, a specific (not aliased) timezone, making it more robust to system configuration differences. [1] https://svnweb.freebsd.org/changeset/base/130332 [2] https://svnweb.freebsd.org/changeset/base/199405 [3] https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap08.html
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test_tzlocal_offset_equal[GMT-tzoff1] fails if a system does not
have a defined (installed) GMT timezone, for example if "Link Etc/GMT GMT"
is not defined in the zoneinfo configuration:
E AssertionError: assert tzlocal() == tzoffset(u'GMT', 0)
E -tzlocal()
E +tzoffset(u'GMT', 0)
An example of such a configuration is FreeBSD, who's default timezone is
UTC [1][2]. This configuration results in any "non-present" or undefined TZ
name being returned/processed as the default timezone name (in FreeBSD's
case, UTC).
Further, POSIX does not recognize [3] TZ=GMT or TZ=UTC as valid values
because they neither start with a colon nor contain a numeric offset hour
field.
Accordingly, update the GMT value for this parametrized test to GMT0, a
specific (not aliased) timezone, making it more robust to system
configuration differences.
[1] https://svnweb.freebsd.org/changeset/base/130332
[2] https://svnweb.freebsd.org/changeset/base/199405
[3] https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap08.html
Summary of changes
Closes #918
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