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vim-patch:9.1.0776: test_strftime may fail because of missing TZ data (#30780)

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Problem:  test_strftime may fail because of missing TZ data
Solution: Use GMT offsets to validate timezone differences (James McCoy)

Some systems only provide timezones that follow the geographical region
naming (e.g. America/New_York) by default and require an additional
install for other names (like EST).

The GMT+<offset> format must always be honored, so use that to generate
distinct data for the test.

closes: vim/vim#15848

ea997edc7a

Co-authored-by: James McCoy <jamessan@jamessan.com>
(cherry picked from commit b0ddc1783a)
This commit is contained in:
zeertzjq
2024-10-13 06:30:20 +08:00
committed by github-actions[bot]
parent 27fca9c7d2
commit 2d1a13bdf5
1 changed files with 6 additions and 6 deletions
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12
test/old/testdir/test_functions.vim
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@ -267,17 +267,17 @@ func Test_strftime()
let tz = $TZ
endif
" Force EST and then UTC, save the current hour (24-hour clock) for each
let $TZ = 'EST' | let est = strftime('%H')
let $TZ = 'UTC' | let utc = strftime('%H')
" Force different time zones, save the current hour (24-hour clock) for each
let $TZ = 'GMT+1' | let one = strftime('%H')
let $TZ = 'GMT+2' | let two = strftime('%H')
" Those hours should be two bytes long, and should not be the same; if they
" are, a tzset(3) call may have failed somewhere
call assert_equal(strlen(est), 2)
call assert_equal(strlen(utc), 2)
call assert_equal(strlen(one), 2)
call assert_equal(strlen(two), 2)
" TODO: this fails on MS-Windows
if has('unix')
call assert_notequal(est, utc)
call assert_notequal(one, two)
endif
" If we cached a timezone value, put it back, otherwise clear it