Move unittests that had a _test filename to _unittest. Update some missing tests in the SCons build.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@1375 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 129 insertions, 0 deletions

diff --git a/base/watchdog_unittest.cc b/base/watchdog_unittest.cc
new file mode 100644
index 0000000..c74b941
--- /dev/null
+++ b/base/watchdog_unittest.cc
@@ -0,0 +1,129 @@
+// 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.
+
+// Tests for Watchdog class.
+
+#include "base/logging.h"
+#include "base/watchdog.h"
+#include "base/spin_wait.h"
+#include "base/time.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace {
+
+//------------------------------------------------------------------------------
+// Provide a derived class to facilitate testing.
+
+// TODO(JAR): Remove default argument from constructor, and make mandatory.
+class WatchdogCounter : public Watchdog {
+ public:
+  WatchdogCounter(const TimeDelta& duration,
+                  const std::wstring& thread_watched_name,
+                  bool enabled = true)
+      : 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_EVIL_CONSTRUCTORS(WatchdogCounter);
+};
+
+class WatchdogTest : public testing::Test {
+};
+
+
+//------------------------------------------------------------------------------
+// Actual tests
+
+// Minimal constructor/destructor test.
+TEST(WatchdogTest, StartupShutdownTest) {
+  Watchdog watchdog1(TimeDelta::FromMilliseconds(300), L"Disabled", false);
+  Watchdog watchdog2(TimeDelta::FromMilliseconds(300), L"Enabled", true);
+
+  // The following test is depricated, and should be removed when the
+  // default argument constructor is no longer accepted.
+  Watchdog watchdog3(TimeDelta::FromMilliseconds(300), L"Default");
+}
+
+// Test ability to call Arm and Disarm repeatedly.
+TEST(WatchdogTest, ArmDisarmTest) {
+  Watchdog watchdog1(TimeDelta::FromMilliseconds(300), L"Disabled", false);
+  watchdog1.Arm();
+  watchdog1.Disarm();
+  watchdog1.Arm();
+  watchdog1.Disarm();
+
+  Watchdog watchdog2(TimeDelta::FromMilliseconds(300), L"Enabled", true);
+  watchdog2.Arm();
+  watchdog2.Disarm();
+  watchdog2.Arm();
+  watchdog2.Disarm();
+
+  // The following test is depricated, and should be removed when the
+  // default argument constructor is no longer accepted.
+  Watchdog watchdog3(TimeDelta::FromMilliseconds(300), L"Default");
+  watchdog3.Arm();
+  watchdog3.Disarm();
+  watchdog3.Arm();
+  watchdog3.Disarm();
+}
+
+// Make sure a basic alarm fires when the time has expired.
+TEST(WatchdogTest, AlarmTest) {
+  WatchdogCounter watchdog(TimeDelta::FromMilliseconds(10), L"Enabled", true);
+  watchdog.Arm();
+  SPIN_FOR_TIMEDELTA_OR_UNTIL_TRUE(TimeDelta::FromSeconds(1),
+                                   watchdog.alarm_counter() > 0);
+  EXPECT_EQ(1, watchdog.alarm_counter());
+
+  // Set a time greater than the timeout into the past.
+  watchdog.ArmSomeTimeDeltaAgo(TimeDelta::FromSeconds(2));
+  // It should instantly go off, but certainly in less than a second.
+  SPIN_FOR_TIMEDELTA_OR_UNTIL_TRUE(TimeDelta::FromSeconds(1),
+                                   watchdog.alarm_counter() > 1);
+
+  EXPECT_EQ(2, watchdog.alarm_counter());
+}
+
+// Make sure a disable alarm does nothing, even if we arm it.
+TEST(WatchdogTest, ConstructorDisabledTest) {
+  WatchdogCounter watchdog(TimeDelta::FromMilliseconds(10), L"Disabled", false);
+  watchdog.Arm();
+  // Alarm should not fire, as it was disabled.
+  Sleep(500);
+  EXPECT_EQ(0, watchdog.alarm_counter());
+}
+
+// Make sure Disarming will prevent firing, even after Arming.
+TEST(WatchdogTest, DisarmTest) {
+  WatchdogCounter watchdog(TimeDelta::FromSeconds(1), L"Enabled", true);
+  watchdog.Arm();
+  Sleep(100);  // Don't sleep too long
+  watchdog.Disarm();
+  // Alarm should not fire.
+  Sleep(1500);
+  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(2));
+  // It should almost instantly go off, but certainly in less than a second.
+  SPIN_FOR_TIMEDELTA_OR_UNTIL_TRUE(TimeDelta::FromSeconds(1),
+                                   watchdog.alarm_counter() > 0);
+
+  EXPECT_EQ(1, watchdog.alarm_counter());
+}
+
+}  // namespace
+