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t0006: simplify prerequisites 

The system must support 64-bit time and its time_t must be 64-bit
wide to pass these tests.  Combine these two prerequisites together
to simplify the tests.  In theory, they could be fulfilled
independently and tests could require only one without the other,
but in practice, these must come hand-in-hand.

Update the "check_parse" test helper to pay attention to the
REQUIRE_64BIT_TIME variable, which can be set to the HAVE_64BIT_TIME
prerequisite so that a parse test can be skipped on 32-bit systems.
This will be used in the next step to skip tests for timestamps near
the end of year 2099, as 32-bit systems will not be able to express
a timestamp beyond 2038 anyway.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano 2024-06-25 16:12:47 -07:00
parent 786a3e4b8d
commit a59275d5d6
1 changed files with 12 additions and 6 deletions
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18
t/t0006-date.sh
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@ -8,6 +8,11 @@ TEST_PASSES_SANITIZE_LEAK=true
# arbitrary reference time: 2009-08-30 19:20:00
GIT_TEST_DATE_NOW=1251660000; export GIT_TEST_DATE_NOW
if test_have_prereq TIME_IS_64BIT,TIME_T_IS_64BIT
then
test_set_prereq HAVE_64BIT_TIME
fi
check_relative() {
t=$(($GIT_TEST_DATE_NOW - $1))
echo "$t -> $2" >expect
@ -80,14 +85,15 @@ check_show raw "$TIME" '1466000000 -0200'
# arbitrary time absurdly far in the future
FUTURE="5758122296 -0400"
check_show iso "$FUTURE" "2152-06-19 18:24:56 -0400" TIME_IS_64BIT,TIME_T_IS_64BIT
check_show iso-local "$FUTURE" "2152-06-19 22:24:56 +0000" TIME_IS_64BIT,TIME_T_IS_64BIT
check_show iso "$FUTURE" "2152-06-19 18:24:56 -0400" HAVE_64BIT_TIME
check_show iso-local "$FUTURE" "2152-06-19 22:24:56 +0000" HAVE_64BIT_TIME
check_parse() {
REQUIRE_64BIT_TIME=
check_parse () {
echo "$1 -> $2" >expect
test_expect_${4:-success} "parse date ($1${3:+ TZ=$3})" "
TZ=${3:-$TZ} test-tool date parse '$1' >actual &&
test_cmp expect actual
test_expect_success $REQUIRE_64BIT_TIME "parse date ($1${3:+ TZ=$3}) -> $2" "
TZ=${3:-$TZ} test-tool date parse '$1' >actual &&
test_cmp expect actual
"
}