base/waitable_event_unittest.cc

// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/time.h"
#include "base/waitable_event.h"
#include "testing/gtest/include/gtest/gtest.h"

using base::WaitableEvent;

namespace {
typedef testing::Test WaitableEventTest;
}

TEST(WaitableEventTest, ManualBasics) {
  WaitableEvent event(true, false);

  EXPECT_FALSE(event.IsSignaled());

  event.Signal();
  EXPECT_TRUE(event.IsSignaled());
  EXPECT_TRUE(event.IsSignaled());

  event.Reset();
  EXPECT_FALSE(event.IsSignaled());
  EXPECT_FALSE(event.TimedWait(TimeDelta::FromMilliseconds(10)));

  event.Signal();
  EXPECT_TRUE(event.Wait());
  EXPECT_TRUE(event.TimedWait(TimeDelta::FromMilliseconds(10)));
}

TEST(WaitableEventTest, AutoBasics) {
  WaitableEvent event(false, false);

  EXPECT_FALSE(event.IsSignaled());

  event.Signal();
  EXPECT_TRUE(event.IsSignaled());
  EXPECT_FALSE(event.IsSignaled());

  event.Reset();
  EXPECT_FALSE(event.IsSignaled());
  EXPECT_FALSE(event.TimedWait(TimeDelta::FromMilliseconds(10)));

  event.Signal();
  EXPECT_TRUE(event.Wait());
  EXPECT_FALSE(event.TimedWait(TimeDelta::FromMilliseconds(10)));

  event.Signal();
  EXPECT_TRUE(event.TimedWait(TimeDelta::FromMilliseconds(10)));
}