bionic/tests/time_test.cpp
Elliott Hughes f0c10a4a16 Work around tzcode's reliance on signed overflow.
I've mailed the tz list about this, and will switch to whatever upstream
fix comes along as soon as it's available.

Bug: 10310929

(cherry picked from commit 7843d44a594270bcb56e98b130603c054f8a9d38)

Change-Id: I205e2440703444c50cecd91d3458d33613ddbc59
2013-08-22 12:23:47 -07:00

70 lines
1.9 KiB
C++

/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <sys/cdefs.h>
#include <features.h>
#include <gtest/gtest.h>
#include <time.h>
#ifdef __BIONIC__ // mktime_tz is a bionic extension.
#include <libc/private/bionic_time.h>
TEST(time, mktime_tz) {
struct tm epoch;
memset(&epoch, 0, sizeof(tm));
epoch.tm_year = 1970 - 1900;
epoch.tm_mon = 1;
epoch.tm_mday = 1;
// Alphabetically first. Coincidentally equivalent to UTC.
ASSERT_EQ(2678400, mktime_tz(&epoch, "Africa/Abidjan"));
// Alphabetically last. Coincidentally equivalent to UTC.
ASSERT_EQ(2678400, mktime_tz(&epoch, "Zulu"));
// Somewhere in the middle, not UTC.
ASSERT_EQ(2707200, mktime_tz(&epoch, "America/Los_Angeles"));
// Missing. Falls back to UTC.
ASSERT_EQ(2678400, mktime_tz(&epoch, "PST"));
}
#endif
TEST(time, gmtime) {
time_t t = 0;
tm* broken_down = gmtime(&t);
ASSERT_TRUE(broken_down != NULL);
ASSERT_EQ(0, broken_down->tm_sec);
ASSERT_EQ(0, broken_down->tm_min);
ASSERT_EQ(0, broken_down->tm_hour);
ASSERT_EQ(1, broken_down->tm_mday);
ASSERT_EQ(0, broken_down->tm_mon);
ASSERT_EQ(1970, broken_down->tm_year + 1900);
}
#ifdef __BIONIC__
TEST(time, mktime_10310929) {
struct tm t;
memset(&t, 0, sizeof(tm));
t.tm_year = 200;
t.tm_mon = 2;
t.tm_mday = 10;
ASSERT_EQ(-1, mktime(&t));
ASSERT_EQ(-1, mktime_tz(&t, "UTC"));
}
#endif