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Merge "Add post 2100 year mktime test." am: 1031e0da38

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Original change: https://android-review.googlesource.com/c/platform/bionic/+/2145859

Change-Id: Icd088d8dddab3771664c50ae49e2c20e428527cd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
This commit is contained in:
Almaz Mingaleev 2022-07-18 11:38:05 +00:00 committed by Automerger Merge Worker
commit 468740a504
1 changed files with 26 additions and 12 deletions
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38
tests/time_test.cpp
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@ -144,15 +144,11 @@ TEST(time, mktime_empty_TZ) {
}
TEST(time, mktime_10310929) {
struct tm t;
memset(&t, 0, sizeof(tm));
t.tm_year = 200;
t.tm_mon = 2;
t.tm_mday = 10;
struct tm tm = {.tm_year = 2100 - 1900, .tm_mon = 2, .tm_mday = 10};
#if !defined(__LP64__)
// 32-bit bionic has a signed 32-bit time_t.
ASSERT_EQ(-1, mktime(&t));
ASSERT_EQ(-1, mktime(&tm));
ASSERT_EQ(EOVERFLOW, errno);
#else
// Everyone else should be using a signed 64-bit time_t.
@ -161,13 +157,12 @@ TEST(time, mktime_10310929) {
setenv("TZ", "America/Los_Angeles", 1);
tzset();
errno = 0;
ASSERT_EQ(static_cast<time_t>(4108348800U), mktime(&t));
ASSERT_EQ(0, errno);
setenv("TZ", "UTC", 1);
tzset();
errno = 0;
ASSERT_EQ(static_cast<time_t>(4108320000U), mktime(&t));
// On the date/time specified by tm America/Los_Angeles
// follows DST. But tm_isdst is set to 0, which forces
// mktime to interpret that time as local standard, hence offset
// is 8 hours, not 7.
ASSERT_EQ(static_cast<time_t>(4108348800U), mktime(&tm));
ASSERT_EQ(0, errno);
#endif
}
@ -212,6 +207,25 @@ TEST(time, mktime_invalid_tm_TZ_combination) {
EXPECT_EQ(EOVERFLOW, errno);
}
// Transitions in the tzdata file are generated up to the year 2100. Testing
// that dates beyond that are handled properly too.
TEST(time, mktime_after_2100) {
struct tm tm = {.tm_year = 2150 - 1900, .tm_mon = 2, .tm_mday = 10, .tm_isdst = -1};
#if !defined(__LP64__)
// 32-bit bionic has a signed 32-bit time_t.
ASSERT_EQ(-1, mktime(&tm));
ASSERT_EQ(EOVERFLOW, errno);
#else
setenv("TZ", "Europe/London", 1);
tzset();
errno = 0;
ASSERT_EQ(static_cast<time_t>(5686156800U), mktime(&tm));
ASSERT_EQ(0, errno);
#endif
}
TEST(time, strftime) {
setenv("TZ", "UTC", 1);