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diff --git a/indra/llcommon/tests/llframetimer_test.cpp b/indra/llcommon/tests/llframetimer_test.cpp
new file mode 100644
index 0000000000..8ac1c91a3a
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+++ b/indra/llcommon/tests/llframetimer_test.cpp
@@ -0,0 +1,112 @@
+/** 
+ * @file lltiming_test.cpp
+ * @date 2006-07-23
+ * @brief Tests the timers.
+ *
+ * $LicenseInfo:firstyear=2006&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ * 
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ * 
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+#include "linden_common.h"
+
+#include "../llframetimer.h"
+#include "../llsd.h"
+
+#include "../test/lltut.h"
+
+namespace tut
+{
+	struct frametimer_test
+	{
+		frametimer_test()
+		{
+			LLFrameTimer::updateFrameTime();			
+		}
+	};
+	typedef test_group<frametimer_test> frametimer_group_t;
+	typedef frametimer_group_t::object frametimer_object_t;
+	tut::frametimer_group_t frametimer_instance("LLFrameTimer");
+
+	template<> template<>
+	void frametimer_object_t::test<1>()
+	{
+		F64 seconds_since_epoch = LLFrameTimer::getTotalSeconds();
+		LLFrameTimer timer;
+		timer.setExpiryAt(seconds_since_epoch);
+		F64 expires_at = timer.expiresAt();
+		ensure_distance(
+			"set expiry matches get expiry",
+			expires_at,
+			seconds_since_epoch,
+			0.001);
+	}
+
+	template<> template<>
+	void frametimer_object_t::test<2>()
+	{
+		F64 seconds_since_epoch = LLFrameTimer::getTotalSeconds();
+		seconds_since_epoch += 10.0;
+		LLFrameTimer timer;
+		timer.setExpiryAt(seconds_since_epoch);
+		F64 expires_at = timer.expiresAt();
+		ensure_distance(
+			"set expiry matches get expiry 1",
+			expires_at,
+			seconds_since_epoch,
+			0.001);
+		seconds_since_epoch += 10.0;
+		timer.setExpiryAt(seconds_since_epoch);
+		expires_at = timer.expiresAt();
+		ensure_distance(
+			"set expiry matches get expiry 2",
+			expires_at,
+			seconds_since_epoch,
+			0.001);
+	}
+	template<> template<>
+	void frametimer_object_t::test<3>()
+	{
+		F64 seconds_since_epoch = LLFrameTimer::getTotalSeconds();
+		seconds_since_epoch += 2.0;
+		LLFrameTimer timer;
+		timer.setExpiryAt(seconds_since_epoch);
+		ensure("timer not expired on create", !timer.hasExpired());
+		int ii;
+		for(ii = 0; ii < 10; ++ii)
+		{
+			ms_sleep(150);
+			LLFrameTimer::updateFrameTime();			
+		}
+		ensure("timer not expired after a bit", !timer.hasExpired());
+		for(ii = 0; ii < 10; ++ii)
+		{
+			ms_sleep(100);
+			LLFrameTimer::updateFrameTime();			
+		}
+		ensure("timer expired", timer.hasExpired());
+	}
+/*
+	template<> template<>
+	void frametimer_object_t::test<4>()
+	{
+	}
+*/
+}