This is the O3D source tree's initial commit to the Chromium tree. It

is not built or referenced at all by the chrome build yet, and doesn't 
yet build in it's new home.  We'll change that shortly.

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@17035 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 84 insertions, 0 deletions

diff --git a/o3d/statsreport/common/highres_timer_unittest.cc b/o3d/statsreport/common/highres_timer_unittest.cc
new file mode 100644
index 0000000..7f40f10
--- /dev/null
+++ b/o3d/statsreport/common/highres_timer_unittest.cc
@@ -0,0 +1,84 @@
+/*
+ * Copyright 2009, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+#include "statsreport/common/highres_timer.h"
+#include "gtest/gtest.h"
+#include "base/basictypes.h"
+
+// These unittests have proven to be flaky on the build server. While
+// we don't want them breaking the build, we still build them to guard
+// against bitrot. On dev's machines during local builds we leave them
+// enabled.
+#ifndef BUILD_SERVER_BUILD
+TEST(HighresTimer, MillisecondClock) {
+#else
+TEST(HighresTimer, DISABLED_MillisecondClock) {
+#endif
+  HighresTimer timer;
+
+  // note: this could fail if we context switch between initializing the timer
+  // and here. Very unlikely however.
+  EXPECT_EQ(0, timer.GetElapsedMs());
+  timer.Start();
+  uint64 half_ms = HighresTimer::GetTimerFrequency() / 2000;
+  // busy wait for half a millisecond
+  while (timer.start_ticks() + half_ms > HighresTimer::GetCurrentTicks()) {
+    // Nothing
+  }
+  EXPECT_EQ(1, timer.GetElapsedMs());
+}
+
+#ifndef BUILD_SERVER_BUILD
+TEST(HighresTimer, SecondClock) {
+#else
+TEST(HighresTimer, DISABLED_SecondClock) {
+#endif
+  HighresTimer timer;
+
+  EXPECT_EQ(0, timer.GetElapsedSec());
+#ifdef OS_WIN
+  ::Sleep(250);
+#else
+  struct timespec ts1 = {0, 250000000};
+  nanosleep(&ts1, 0);
+#endif
+  EXPECT_EQ(0, timer.GetElapsedSec());
+  EXPECT_LE(230, timer.GetElapsedMs());
+  EXPECT_GE(270, timer.GetElapsedMs());
+#ifdef OS_WIN
+  ::Sleep(251);
+#else
+  struct timespec ts2 = {0, 251000000};
+  nanosleep(&ts2, 0);
+#endif
+  EXPECT_EQ(1, timer.GetElapsedSec());
+}