platform_bionic/tests/sys_time_test.cpp
Elliott Hughes 0159b64aa5 Allow more leeway to fix sys_time.gettimeofday flakiness.
Bug: http://b/121156651
Test: ran tests
Change-Id: Ieb8ee481ea3572533823e6cb0eab4ec089a38e44
2019-01-18 08:20:55 -08:00

153 lines
3.6 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 <gtest/gtest.h>
#include <errno.h>
#include <fcntl.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <android-base/file.h>
// http://b/11383777
TEST(sys_time, utimes_nullptr) {
TemporaryFile tf;
ASSERT_EQ(0, utimes(tf.path, nullptr));
}
TEST(sys_time, utimes_EINVAL) {
TemporaryFile tf;
timeval tv[2] = {};
tv[0].tv_usec = -123;
ASSERT_EQ(-1, utimes(tf.path, tv));
ASSERT_EQ(EINVAL, errno);
tv[0].tv_usec = 1234567;
ASSERT_EQ(-1, utimes(tf.path, tv));
ASSERT_EQ(EINVAL, errno);
tv[0].tv_usec = 0;
tv[1].tv_usec = -123;
ASSERT_EQ(-1, utimes(tf.path, tv));
ASSERT_EQ(EINVAL, errno);
tv[1].tv_usec = 1234567;
ASSERT_EQ(-1, utimes(tf.path, tv));
ASSERT_EQ(EINVAL, errno);
}
TEST(sys_time, futimes_nullptr) {
TemporaryFile tf;
ASSERT_EQ(0, futimes(tf.fd, nullptr));
}
TEST(sys_time, futimes_EINVAL) {
TemporaryFile tf;
timeval tv[2] = {};
tv[0].tv_usec = -123;
ASSERT_EQ(-1, futimes(tf.fd, tv));
ASSERT_EQ(EINVAL, errno);
tv[0].tv_usec = 1234567;
ASSERT_EQ(-1, futimes(tf.fd, tv));
ASSERT_EQ(EINVAL, errno);
tv[0].tv_usec = 0;
tv[1].tv_usec = -123;
ASSERT_EQ(-1, futimes(tf.fd, tv));
ASSERT_EQ(EINVAL, errno);
tv[1].tv_usec = 1234567;
ASSERT_EQ(-1, futimes(tf.fd, tv));
ASSERT_EQ(EINVAL, errno);
}
TEST(sys_time, futimesat_nullptr) {
TemporaryFile tf;
ASSERT_EQ(0, futimesat(AT_FDCWD, tf.path, nullptr));
}
TEST(sys_time, futimesat_EINVAL) {
TemporaryFile tf;
timeval tv[2] = {};
tv[0].tv_usec = -123;
ASSERT_EQ(-1, futimesat(AT_FDCWD, tf.path, tv));
ASSERT_EQ(EINVAL, errno);
tv[0].tv_usec = 1234567;
ASSERT_EQ(-1, futimesat(AT_FDCWD, tf.path, tv));
ASSERT_EQ(EINVAL, errno);
tv[0].tv_usec = 0;
tv[1].tv_usec = -123;
ASSERT_EQ(-1, futimesat(AT_FDCWD, tf.path, tv));
ASSERT_EQ(EINVAL, errno);
tv[1].tv_usec = 1234567;
ASSERT_EQ(-1, futimesat(AT_FDCWD, tf.path, tv));
ASSERT_EQ(EINVAL, errno);
}
TEST(sys_time, lutimes_nullptr) {
TemporaryFile tf;
ASSERT_EQ(0, lutimes(tf.path, nullptr));
}
TEST(sys_time, lutimes_EINVAL) {
TemporaryFile tf;
timeval tv[2] = {};
tv[0].tv_usec = -123;
ASSERT_EQ(-1, lutimes(tf.path, tv));
ASSERT_EQ(EINVAL, errno);
tv[0].tv_usec = 1234567;
ASSERT_EQ(-1, lutimes(tf.path, tv));
ASSERT_EQ(EINVAL, errno);
tv[0].tv_usec = 0;
tv[1].tv_usec = -123;
ASSERT_EQ(-1, lutimes(tf.path, tv));
ASSERT_EQ(EINVAL, errno);
tv[1].tv_usec = 1234567;
ASSERT_EQ(-1, lutimes(tf.path, tv));
ASSERT_EQ(EINVAL, errno);
}
TEST(sys_time, gettimeofday) {
// Try to ensure that our vdso gettimeofday is working.
timeval tv1;
ASSERT_EQ(0, gettimeofday(&tv1, nullptr));
timeval tv2;
ASSERT_EQ(0, syscall(__NR_gettimeofday, &tv2, nullptr));
// What's the difference between the two?
tv2.tv_sec -= tv1.tv_sec;
tv2.tv_usec -= tv1.tv_usec;
if (tv2.tv_usec < 0) {
--tv2.tv_sec;
tv2.tv_usec += 1000000;
}
// To try to avoid flakiness we'll accept answers within 10,000us (0.01s).
ASSERT_EQ(0, tv2.tv_sec);
ASSERT_LT(tv2.tv_usec, 10'000);
}