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Fix incorrect to_gmt_offset result

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Alex Ling
2024-09-28 16:45:14 +07:00
committed by Christoffer Lerno
parent 8a0b0f5cf5
commit fe9e434020
2 changed files with 23 additions and 1 deletions
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21
test/unit/stdlib/time/datetime.c3
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@@ -49,6 +49,9 @@ fn void test_timezone()
int offset_hours = 7;
int offset = offset_hours * 3600;
int target_offset_hours = -4;
int target_offset = target_offset_hours * 3600;
DateTime d1 = datetime::from_date(2022, OCTOBER, 15);
TzDateTime d2 = datetime::from_date_tz(2022, OCTOBER, 15, gmt_offset: offset);
@@ -127,4 +130,22 @@ fn void test_timezone()
assert(tz.day == 15);
assert(tz.hour == 0);
assert(tz.gmt_offset == offset);
// Conversion from GMT+7 to GMT-4
tz = d2.to_gmt_offset(target_offset);
assert(tz.year == d2.year);
assert(tz.month == d2.month);
assert(tz.day == d2.day - 1);
assert(tz.hour == 24 - (offset_hours - target_offset_hours));
assert(tz.time == t2);
assert(tz.gmt_offset == target_offset);
// Conversion with the same offset
tz = d2.to_gmt_offset(offset);
assert(tz.year == d2.year);
assert(tz.month == d2.month);
assert(tz.day == d2.day);
assert(tz.hour == d2.hour);
assert(tz.time == t2);
assert(tz.gmt_offset == offset);
}