src/base/time_unittest.cc

/*
 * Copyright (C) 2017 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 "perfetto/base/time.h"

#include "gtest/gtest.h"

namespace perfetto {
namespace base {
namespace {

TEST(TimeTest, Conversions) {
  TimeMillis ms = GetWallTimeMs();
  TimeNanos ns = GetWallTimeNs();
  EXPECT_NEAR(ms.count(), ns.count() / 1000000, 1000);

  {
    struct timespec ts = ToPosixTimespec(TimeMillis(0));
    EXPECT_EQ(0, ts.tv_sec);
    EXPECT_EQ(0, ts.tv_nsec);
  }
  {
    struct timespec ts = ToPosixTimespec(TimeMillis(1));
    EXPECT_EQ(0, ts.tv_sec);
    EXPECT_EQ(1000000, ts.tv_nsec);
  }
  {
    struct timespec ts = ToPosixTimespec(TimeMillis(12345));
    EXPECT_EQ(12, ts.tv_sec);
    EXPECT_EQ(345000000, ts.tv_nsec);
  }
  {
    struct timespec ts = ToPosixTimespec(TimeMillis(1000000000001LL));
    EXPECT_EQ(1000000000, ts.tv_sec);
    EXPECT_EQ(1000000, ts.tv_nsec);
  }
}

}  // namespace
}  // namespace base
}  // namespace perfetto