Move some misc thread-related stuff from base to base/thread and into the bas...

base/watchdog_unittest.cc

-// Copyright (c) 2010 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.
-
-// Tests for Watchdog class.
-
-#include "base/watchdog.h"
-
-#include "base/logging.h"
-#include "base/platform_thread.h"
-#include "base/spin_wait.h"
-#include "base/time.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-using base::TimeDelta;
-using base::TimeTicks;
-
-namespace {
-
-//------------------------------------------------------------------------------
-// Provide a derived class to facilitate testing.
-
-class WatchdogCounter : public Watchdog {
- public:
-  WatchdogCounter(const TimeDelta& duration,
-                  const std::string& thread_watched_name,
-                  bool enabled)
-      : Watchdog(duration, thread_watched_name, enabled), alarm_counter_(0) {
-  }
-
-  virtual ~WatchdogCounter() {}
-
-  virtual void Alarm() {
-    alarm_counter_++;
-    Watchdog::Alarm();
-  }
-
-  int alarm_counter() { return alarm_counter_; }
-
- private:
-  int alarm_counter_;
-
-  DISALLOW_COPY_AND_ASSIGN(WatchdogCounter);
-};
-
-class WatchdogTest : public testing::Test {
- public:
-  void SetUp() {
-    Watchdog::ResetStaticData();
-  }
-};
-
-
-//------------------------------------------------------------------------------
-// Actual tests
-
-// Minimal constructor/destructor test.
-TEST_F(WatchdogTest, StartupShutdownTest) {
-  Watchdog watchdog1(TimeDelta::FromMilliseconds(300), "Disabled", false);
-  Watchdog watchdog2(TimeDelta::FromMilliseconds(300), "Enabled", true);
-}
-
-// Test ability to call Arm and Disarm repeatedly.
-TEST_F(WatchdogTest, ArmDisarmTest) {
-  Watchdog watchdog1(TimeDelta::FromMilliseconds(300), "Disabled", false);
-  watchdog1.Arm();
-  watchdog1.Disarm();
-  watchdog1.Arm();
-  watchdog1.Disarm();
-
-  Watchdog watchdog2(TimeDelta::FromMilliseconds(300), "Enabled", true);
-  watchdog2.Arm();
-  watchdog2.Disarm();
-  watchdog2.Arm();
-  watchdog2.Disarm();
-}
-
-// Make sure a basic alarm fires when the time has expired.
-TEST_F(WatchdogTest, AlarmTest) {
-  WatchdogCounter watchdog(TimeDelta::FromMilliseconds(10), "Enabled", true);
-  watchdog.Arm();
-  SPIN_FOR_TIMEDELTA_OR_UNTIL_TRUE(TimeDelta::FromMinutes(5),
-                                   watchdog.alarm_counter() > 0);
-  EXPECT_EQ(1, watchdog.alarm_counter());
-}
-
-// Make sure a basic alarm fires when the time has expired.
-TEST_F(WatchdogTest, AlarmPriorTimeTest) {
-  WatchdogCounter watchdog(TimeDelta(), "Enabled2", true);
-  // Set a time in the past.
-  watchdog.ArmSomeTimeDeltaAgo(TimeDelta::FromSeconds(2));
-  // It should instantly go off, but certainly in less than 5 minutes.
-  SPIN_FOR_TIMEDELTA_OR_UNTIL_TRUE(TimeDelta::FromMinutes(5),
-                                   watchdog.alarm_counter() > 0);
-
-  EXPECT_EQ(1, watchdog.alarm_counter());
-}
-
-// Make sure a disable alarm does nothing, even if we arm it.
-TEST_F(WatchdogTest, ConstructorDisabledTest) {
-  WatchdogCounter watchdog(TimeDelta::FromMilliseconds(10), "Disabled", false);
-  watchdog.Arm();
-  // Alarm should not fire, as it was disabled.
-  PlatformThread::Sleep(500);
-  EXPECT_EQ(0, watchdog.alarm_counter());
-}
-
-// Make sure Disarming will prevent firing, even after Arming.
-TEST_F(WatchdogTest, DisarmTest) {
-  WatchdogCounter watchdog(TimeDelta::FromSeconds(1), "Enabled3", true);
-
-  TimeTicks start = TimeTicks::Now();
-  watchdog.Arm();
-  PlatformThread::Sleep(100);  // Sleep a bit, but not past the alarm point.
-  watchdog.Disarm();
-  TimeTicks end = TimeTicks::Now();
-
-  if (end - start > TimeDelta::FromMilliseconds(500)) {
-    LOG(WARNING) << "100ms sleep took over 500ms, making the results of this "
-                 << "timing-sensitive test suspicious.  Aborting now.";
-    return;
-  }
-
-  // Alarm should not have fired before it was disarmed.
-  EXPECT_EQ(0, watchdog.alarm_counter());
-
-  // Sleep past the point where it would have fired if it wasn't disarmed,
-  // and verify that it didn't fire.
-  PlatformThread::Sleep(1000);
-  EXPECT_EQ(0, watchdog.alarm_counter());
-
-  // ...but even after disarming, we can still use the alarm...
-  // Set a time greater than the timeout into the past.
-  watchdog.ArmSomeTimeDeltaAgo(TimeDelta::FromSeconds(10));
-  // It should almost instantly go off, but certainly in less than 5 minutes.
-  SPIN_FOR_TIMEDELTA_OR_UNTIL_TRUE(TimeDelta::FromMinutes(5),
-                                   watchdog.alarm_counter() > 0);
-
-  EXPECT_EQ(1, watchdog.alarm_counter());
-}
-
-}  // namespace