Merge from trunk

2 files changed, 1576 insertions, 0 deletions

diff --git a/indra/newview/tests/llsimplestat_test.cpp b/indra/newview/tests/llsimplestat_test.cpp
new file mode 100644
index 0000000000..60a8cac995
--- /dev/null
+++ b/indra/newview/tests/llsimplestat_test.cpp
@@ -0,0 +1,586 @@
+/** 
+ * @file llsimplestats_test.cpp
+ * @date 2010-10-22
+ * @brief Test cases for some of llsimplestat.h
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2010, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "linden_common.h"
+
+#include <tut/tut.hpp>
+
+#include "lltut.h"
+#include "../llsimplestat.h"
+#include "llsd.h"
+#include "llmath.h"
+
+// @brief Used as a pointer cast type to get access to LLSimpleStatCounter
+class TutStatCounter: public LLSimpleStatCounter
+{
+public:
+	TutStatCounter();							// Not defined
+	~TutStatCounter();							// Not defined
+	void operator=(const TutStatCounter &);		// Not defined
+	
+	void setRawCount(U32 c)				{ mCount = c; }
+	U32 getRawCount() const				{ return mCount; }
+};
+
+
+namespace tut
+{
+	struct stat_counter_index
+	{};
+	typedef test_group<stat_counter_index> stat_counter_index_t;
+	typedef stat_counter_index_t::object stat_counter_index_object_t;
+	tut::stat_counter_index_t tut_stat_counter_index("stat_counter_test");
+
+	// Testing LLSimpleStatCounter's external interface
+	template<> template<>
+	void stat_counter_index_object_t::test<1>()
+	{
+		LLSimpleStatCounter c1;
+		ensure("Initialized counter is zero", (0 == c1.getCount()));
+
+		ensure("Counter increment return is 1", (1 == ++c1));
+		ensure("Counter increment return is 2", (2 == ++c1));
+
+		ensure("Current counter is 2", (2 == c1.getCount()));
+
+		c1.reset();
+		ensure("Counter is 0 after reset", (0 == c1.getCount()));
+		
+		ensure("Counter increment return is 1", (1 == ++c1));
+	}
+
+	// Testing LLSimpleStatCounter's internal state
+	template<> template<>
+	void stat_counter_index_object_t::test<2>()
+	{
+		LLSimpleStatCounter c1;
+		TutStatCounter * tc1 = (TutStatCounter *) &c1;
+		
+		ensure("Initialized private counter is zero", (0 == tc1->getRawCount()));
+
+		++c1;
+		++c1;
+		
+		ensure("Current private counter is 2", (2 == tc1->getRawCount()));
+
+		c1.reset();
+		ensure("Raw counter is 0 after reset", (0 == tc1->getRawCount()));
+	}
+
+	// Testing LLSimpleStatCounter's wrapping behavior
+	template<> template<>
+	void stat_counter_index_object_t::test<3>()
+	{
+		LLSimpleStatCounter c1;
+		TutStatCounter * tc1 = (TutStatCounter *) &c1;
+
+		tc1->setRawCount(U32_MAX);
+		ensure("Initialized private counter is zero", (U32_MAX == c1.getCount()));
+
+		ensure("Increment of max value wraps to 0", (0 == ++c1));
+	}
+
+	// Testing LLSimpleStatMMM's external behavior
+	template<> template<>
+	void stat_counter_index_object_t::test<4>()
+	{
+		LLSimpleStatMMM<> m1;
+		typedef LLSimpleStatMMM<>::Value lcl_float;
+		lcl_float zero(0);
+
+		// Freshly-constructed
+		ensure("Constructed MMM<> has 0 count", (0 == m1.getCount()));
+		ensure("Constructed MMM<> has 0 min", (zero == m1.getMin()));
+		ensure("Constructed MMM<> has 0 max", (zero == m1.getMax()));
+		ensure("Constructed MMM<> has 0 mean no div-by-zero", (zero == m1.getMean()));
+
+		// Single insert
+		m1.record(1.0);
+		ensure("Single insert MMM<> has 1 count", (1 == m1.getCount()));
+		ensure("Single insert MMM<> has 1.0 min", (1.0 == m1.getMin()));
+		ensure("Single insert MMM<> has 1.0 max", (1.0 == m1.getMax()));
+		ensure("Single insert MMM<> has 1.0 mean", (1.0 == m1.getMean()));
+		
+		// Second insert
+		m1.record(3.0);
+		ensure("2nd insert MMM<> has 2 count", (2 == m1.getCount()));
+		ensure("2nd insert MMM<> has 1.0 min", (1.0 == m1.getMin()));
+		ensure("2nd insert MMM<> has 3.0 max", (3.0 == m1.getMax()));
+		ensure_approximately_equals("2nd insert MMM<> has 2.0 mean", m1.getMean(), lcl_float(2.0), 1);
+
+		// Third insert
+		m1.record(5.0);
+		ensure("3rd insert MMM<> has 3 count", (3 == m1.getCount()));
+		ensure("3rd insert MMM<> has 1.0 min", (1.0 == m1.getMin()));
+		ensure("3rd insert MMM<> has 5.0 max", (5.0 == m1.getMax()));
+		ensure_approximately_equals("3rd insert MMM<> has 3.0 mean", m1.getMean(), lcl_float(3.0), 1);
+
+		// Fourth insert
+		m1.record(1000000.0);
+		ensure("4th insert MMM<> has 4 count", (4 == m1.getCount()));
+		ensure("4th insert MMM<> has 1.0 min", (1.0 == m1.getMin()));
+		ensure("4th insert MMM<> has 100000.0 max", (1000000.0 == m1.getMax()));
+		ensure_approximately_equals("4th insert MMM<> has 250002.0 mean", m1.getMean(), lcl_float(250002.0), 1);
+
+		// Reset
+		m1.reset();
+		ensure("Reset MMM<> has 0 count", (0 == m1.getCount()));
+		ensure("Reset MMM<> has 0 min", (zero == m1.getMin()));
+		ensure("Reset MMM<> has 0 max", (zero == m1.getMax()));
+		ensure("Reset MMM<> has 0 mean no div-by-zero", (zero == m1.getMean()));
+	}
+
+	// Testing LLSimpleStatMMM's response to large values
+	template<> template<>
+	void stat_counter_index_object_t::test<5>()
+	{
+		LLSimpleStatMMM<> m1;
+		typedef LLSimpleStatMMM<>::Value lcl_float;
+		lcl_float zero(0);
+
+		// Insert overflowing values
+		const lcl_float bignum(F32_MAX / 2);
+
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(zero);
+
+		ensure("Overflowed MMM<> has 8 count", (8 == m1.getCount()));
+		ensure("Overflowed MMM<> has 0 min", (zero == m1.getMin()));
+		ensure("Overflowed MMM<> has huge max", (bignum == m1.getMax()));
+		ensure("Overflowed MMM<> has fetchable mean", (1.0 == m1.getMean() || true));
+		// We should be infinte but not interested in proving the IEEE standard here.
+		LLSD sd1(m1.getMean());
+		// std::cout << "Thingy:  " << m1.getMean() << " and as LLSD:  " << sd1 << std::endl;
+		ensure("Overflowed MMM<> produces LLSDable Real", (sd1.isReal()));
+	}
+
+	// Testing LLSimpleStatMMM<F32>'s external behavior
+	template<> template<>
+	void stat_counter_index_object_t::test<6>()
+	{
+		LLSimpleStatMMM<F32> m1;
+		typedef LLSimpleStatMMM<F32>::Value lcl_float;
+		lcl_float zero(0);
+
+		// Freshly-constructed
+		ensure("Constructed MMM<F32> has 0 count", (0 == m1.getCount()));
+		ensure("Constructed MMM<F32> has 0 min", (zero == m1.getMin()));
+		ensure("Constructed MMM<F32> has 0 max", (zero == m1.getMax()));
+		ensure("Constructed MMM<F32> has 0 mean no div-by-zero", (zero == m1.getMean()));
+
+		// Single insert
+		m1.record(1.0);
+		ensure("Single insert MMM<F32> has 1 count", (1 == m1.getCount()));
+		ensure("Single insert MMM<F32> has 1.0 min", (1.0 == m1.getMin()));
+		ensure("Single insert MMM<F32> has 1.0 max", (1.0 == m1.getMax()));
+		ensure("Single insert MMM<F32> has 1.0 mean", (1.0 == m1.getMean()));
+		
+		// Second insert
+		m1.record(3.0);
+		ensure("2nd insert MMM<F32> has 2 count", (2 == m1.getCount()));
+		ensure("2nd insert MMM<F32> has 1.0 min", (1.0 == m1.getMin()));
+		ensure("2nd insert MMM<F32> has 3.0 max", (3.0 == m1.getMax()));
+		ensure_approximately_equals("2nd insert MMM<F32> has 2.0 mean", m1.getMean(), lcl_float(2.0), 1);
+
+		// Third insert
+		m1.record(5.0);
+		ensure("3rd insert MMM<F32> has 3 count", (3 == m1.getCount()));
+		ensure("3rd insert MMM<F32> has 1.0 min", (1.0 == m1.getMin()));
+		ensure("3rd insert MMM<F32> has 5.0 max", (5.0 == m1.getMax()));
+		ensure_approximately_equals("3rd insert MMM<F32> has 3.0 mean", m1.getMean(), lcl_float(3.0), 1);
+
+		// Fourth insert
+		m1.record(1000000.0);
+		ensure("4th insert MMM<F32> has 4 count", (4 == m1.getCount()));
+		ensure("4th insert MMM<F32> has 1.0 min", (1.0 == m1.getMin()));
+		ensure("4th insert MMM<F32> has 1000000.0 max", (1000000.0 == m1.getMax()));
+		ensure_approximately_equals("4th insert MMM<F32> has 250002.0 mean", m1.getMean(), lcl_float(250002.0), 1);
+
+		// Reset
+		m1.reset();
+		ensure("Reset MMM<F32> has 0 count", (0 == m1.getCount()));
+		ensure("Reset MMM<F32> has 0 min", (zero == m1.getMin()));
+		ensure("Reset MMM<F32> has 0 max", (zero == m1.getMax()));
+		ensure("Reset MMM<F32> has 0 mean no div-by-zero", (zero == m1.getMean()));
+	}
+
+	// Testing LLSimpleStatMMM's response to large values
+	template<> template<>
+	void stat_counter_index_object_t::test<7>()
+	{
+		LLSimpleStatMMM<F32> m1;
+		typedef LLSimpleStatMMM<F32>::Value lcl_float;
+		lcl_float zero(0);
+
+		// Insert overflowing values
+		const lcl_float bignum(F32_MAX / 2);
+
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(zero);
+
+		ensure("Overflowed MMM<F32> has 8 count", (8 == m1.getCount()));
+		ensure("Overflowed MMM<F32> has 0 min", (zero == m1.getMin()));
+		ensure("Overflowed MMM<F32> has huge max", (bignum == m1.getMax()));
+		ensure("Overflowed MMM<F32> has fetchable mean", (1.0 == m1.getMean() || true));
+		// We should be infinte but not interested in proving the IEEE standard here.
+		LLSD sd1(m1.getMean());
+		// std::cout << "Thingy:  " << m1.getMean() << " and as LLSD:  " << sd1 << std::endl;
+		ensure("Overflowed MMM<F32> produces LLSDable Real", (sd1.isReal()));
+	}
+
+	// Testing LLSimpleStatMMM<F64>'s external behavior
+	template<> template<>
+	void stat_counter_index_object_t::test<8>()
+	{
+		LLSimpleStatMMM<F64> m1;
+		typedef LLSimpleStatMMM<F64>::Value lcl_float;
+		lcl_float zero(0);
+
+		// Freshly-constructed
+		ensure("Constructed MMM<F64> has 0 count", (0 == m1.getCount()));
+		ensure("Constructed MMM<F64> has 0 min", (zero == m1.getMin()));
+		ensure("Constructed MMM<F64> has 0 max", (zero == m1.getMax()));
+		ensure("Constructed MMM<F64> has 0 mean no div-by-zero", (zero == m1.getMean()));
+
+		// Single insert
+		m1.record(1.0);
+		ensure("Single insert MMM<F64> has 1 count", (1 == m1.getCount()));
+		ensure("Single insert MMM<F64> has 1.0 min", (1.0 == m1.getMin()));
+		ensure("Single insert MMM<F64> has 1.0 max", (1.0 == m1.getMax()));
+		ensure("Single insert MMM<F64> has 1.0 mean", (1.0 == m1.getMean()));
+		
+		// Second insert
+		m1.record(3.0);
+		ensure("2nd insert MMM<F64> has 2 count", (2 == m1.getCount()));
+		ensure("2nd insert MMM<F64> has 1.0 min", (1.0 == m1.getMin()));
+		ensure("2nd insert MMM<F64> has 3.0 max", (3.0 == m1.getMax()));
+		ensure_approximately_equals("2nd insert MMM<F64> has 2.0 mean", m1.getMean(), lcl_float(2.0), 1);
+
+		// Third insert
+		m1.record(5.0);
+		ensure("3rd insert MMM<F64> has 3 count", (3 == m1.getCount()));
+		ensure("3rd insert MMM<F64> has 1.0 min", (1.0 == m1.getMin()));
+		ensure("3rd insert MMM<F64> has 5.0 max", (5.0 == m1.getMax()));
+		ensure_approximately_equals("3rd insert MMM<F64> has 3.0 mean", m1.getMean(), lcl_float(3.0), 1);
+
+		// Fourth insert
+		m1.record(1000000.0);
+		ensure("4th insert MMM<F64> has 4 count", (4 == m1.getCount()));
+		ensure("4th insert MMM<F64> has 1.0 min", (1.0 == m1.getMin()));
+		ensure("4th insert MMM<F64> has 1000000.0 max", (1000000.0 == m1.getMax()));
+		ensure_approximately_equals("4th insert MMM<F64> has 250002.0 mean", m1.getMean(), lcl_float(250002.0), 1);
+
+		// Reset
+		m1.reset();
+		ensure("Reset MMM<F64> has 0 count", (0 == m1.getCount()));
+		ensure("Reset MMM<F64> has 0 min", (zero == m1.getMin()));
+		ensure("Reset MMM<F64> has 0 max", (zero == m1.getMax()));
+		ensure("Reset MMM<F64> has 0 mean no div-by-zero", (zero == m1.getMean()));
+	}
+
+	// Testing LLSimpleStatMMM's response to large values
+	template<> template<>
+	void stat_counter_index_object_t::test<9>()
+	{
+		LLSimpleStatMMM<F64> m1;
+		typedef LLSimpleStatMMM<F64>::Value lcl_float;
+		lcl_float zero(0);
+
+		// Insert overflowing values
+		const lcl_float bignum(F64_MAX / 2);
+
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(zero);
+
+		ensure("Overflowed MMM<F64> has 8 count", (8 == m1.getCount()));
+		ensure("Overflowed MMM<F64> has 0 min", (zero == m1.getMin()));
+		ensure("Overflowed MMM<F64> has huge max", (bignum == m1.getMax()));
+		ensure("Overflowed MMM<F64> has fetchable mean", (1.0 == m1.getMean() || true));
+		// We should be infinte but not interested in proving the IEEE standard here.
+		LLSD sd1(m1.getMean());
+		// std::cout << "Thingy:  " << m1.getMean() << " and as LLSD:  " << sd1 << std::endl;
+		ensure("Overflowed MMM<F64> produces LLSDable Real", (sd1.isReal()));
+	}
+
+	// Testing LLSimpleStatMMM<U64>'s external behavior
+	template<> template<>
+	void stat_counter_index_object_t::test<10>()
+	{
+		LLSimpleStatMMM<U64> m1;
+		typedef LLSimpleStatMMM<U64>::Value lcl_int;
+		lcl_int zero(0);
+
+		// Freshly-constructed
+		ensure("Constructed MMM<U64> has 0 count", (0 == m1.getCount()));
+		ensure("Constructed MMM<U64> has 0 min", (zero == m1.getMin()));
+		ensure("Constructed MMM<U64> has 0 max", (zero == m1.getMax()));
+		ensure("Constructed MMM<U64> has 0 mean no div-by-zero", (zero == m1.getMean()));
+
+		// Single insert
+		m1.record(1);
+		ensure("Single insert MMM<U64> has 1 count", (1 == m1.getCount()));
+		ensure("Single insert MMM<U64> has 1 min", (1 == m1.getMin()));
+		ensure("Single insert MMM<U64> has 1 max", (1 == m1.getMax()));
+		ensure("Single insert MMM<U64> has 1 mean", (1 == m1.getMean()));
+		
+		// Second insert
+		m1.record(3);
+		ensure("2nd insert MMM<U64> has 2 count", (2 == m1.getCount()));
+		ensure("2nd insert MMM<U64> has 1 min", (1 == m1.getMin()));
+		ensure("2nd insert MMM<U64> has 3 max", (3 == m1.getMax()));
+		ensure("2nd insert MMM<U64> has 2 mean", (2 == m1.getMean()));
+
+		// Third insert
+		m1.record(5);
+		ensure("3rd insert MMM<U64> has 3 count", (3 == m1.getCount()));
+		ensure("3rd insert MMM<U64> has 1 min", (1 == m1.getMin()));
+		ensure("3rd insert MMM<U64> has 5 max", (5 == m1.getMax()));
+		ensure("3rd insert MMM<U64> has 3 mean", (3 == m1.getMean()));
+
+		// Fourth insert
+		m1.record(U64L(1000000000000));
+		ensure("4th insert MMM<U64> has 4 count", (4 == m1.getCount()));
+		ensure("4th insert MMM<U64> has 1 min", (1 == m1.getMin()));
+		ensure("4th insert MMM<U64> has 1000000000000ULL max", (U64L(1000000000000) == m1.getMax()));
+		ensure("4th insert MMM<U64> has 250000000002ULL mean", (U64L( 250000000002) == m1.getMean()));
+
+		// Reset
+		m1.reset();
+		ensure("Reset MMM<U64> has 0 count", (0 == m1.getCount()));
+		ensure("Reset MMM<U64> has 0 min", (zero == m1.getMin()));
+		ensure("Reset MMM<U64> has 0 max", (zero == m1.getMax()));
+		ensure("Reset MMM<U64> has 0 mean no div-by-zero", (zero == m1.getMean()));
+	}
+
+	// Testing LLSimpleStatMMM's response to large values
+	template<> template<>
+	void stat_counter_index_object_t::test<11>()
+	{
+		LLSimpleStatMMM<U64> m1;
+		typedef LLSimpleStatMMM<U64>::Value lcl_int;
+		lcl_int zero(0);
+
+		// Insert overflowing values
+		const lcl_int bignum(U64L(0xffffffffffffffff) / 2);
+
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(bignum);
+		m1.record(zero);
+
+		ensure("Overflowed MMM<U64> has 8 count", (8 == m1.getCount()));
+		ensure("Overflowed MMM<U64> has 0 min", (zero == m1.getMin()));
+		ensure("Overflowed MMM<U64> has huge max", (bignum == m1.getMax()));
+		ensure("Overflowed MMM<U64> has fetchable mean", (zero == m1.getMean() || true));
+	}
+
+    // Testing LLSimpleStatCounter's merge() method
+	template<> template<>
+	void stat_counter_index_object_t::test<12>()
+	{
+		LLSimpleStatCounter c1;
+		LLSimpleStatCounter c2;
+
+		++c1;
+		++c1;
+		++c1;
+		++c1;
+
+		++c2;
+		++c2;
+		c2.merge(c1);
+		
+		ensure_equals("4 merged into 2 results in 6", 6, c2.getCount());
+
+		ensure_equals("Source of merge is undamaged", 4, c1.getCount());
+	}
+
+    // Testing LLSimpleStatMMM's merge() method
+	template<> template<>
+	void stat_counter_index_object_t::test<13>()
+	{
+		LLSimpleStatMMM<> m1;
+		LLSimpleStatMMM<> m2;
+
+		m1.record(3.5);
+		m1.record(4.5);
+		m1.record(5.5);
+		m1.record(6.5);
+
+		m2.record(5.0);
+		m2.record(7.0);
+		m2.record(9.0);
+		
+		m2.merge(m1);
+
+		ensure_equals("Count after merge (p1)", 7, m2.getCount());
+		ensure_approximately_equals("Min after merge (p1)", F32(3.5), m2.getMin(), 22);
+		ensure_approximately_equals("Max after merge (p1)", F32(9.0), m2.getMax(), 22);
+		ensure_approximately_equals("Mean after merge (p1)", F32(41.000/7.000), m2.getMean(), 22);
+		
+
+		ensure_equals("Source count of merge is undamaged (p1)", 4, m1.getCount());
+		ensure_approximately_equals("Source min of merge is undamaged (p1)", F32(3.5), m1.getMin(), 22);
+		ensure_approximately_equals("Source max of merge is undamaged (p1)", F32(6.5), m1.getMax(), 22);
+		ensure_approximately_equals("Source mean of merge is undamaged (p1)", F32(5.0), m1.getMean(), 22);
+
+		m2.reset();
+
+		m2.record(-22.0);
+		m2.record(-1.0);
+		m2.record(30.0);
+		
+		m2.merge(m1);
+
+		ensure_equals("Count after merge (p2)", 7, m2.getCount());
+		ensure_approximately_equals("Min after merge (p2)", F32(-22.0), m2.getMin(), 22);
+		ensure_approximately_equals("Max after merge (p2)", F32(30.0), m2.getMax(), 22);
+		ensure_approximately_equals("Mean after merge (p2)", F32(27.000/7.000), m2.getMean(), 22);
+
+	}
+
+    // Testing LLSimpleStatMMM's merge() method when src contributes nothing
+	template<> template<>
+	void stat_counter_index_object_t::test<14>()
+	{
+		LLSimpleStatMMM<> m1;
+		LLSimpleStatMMM<> m2;
+
+		m2.record(5.0);
+		m2.record(7.0);
+		m2.record(9.0);
+		
+		m2.merge(m1);
+
+		ensure_equals("Count after merge (p1)", 3, m2.getCount());
+		ensure_approximately_equals("Min after merge (p1)", F32(5.0), m2.getMin(), 22);
+		ensure_approximately_equals("Max after merge (p1)", F32(9.0), m2.getMax(), 22);
+		ensure_approximately_equals("Mean after merge (p1)", F32(7.000), m2.getMean(), 22);
+
+		ensure_equals("Source count of merge is undamaged (p1)", 0, m1.getCount());
+		ensure_approximately_equals("Source min of merge is undamaged (p1)", F32(0), m1.getMin(), 22);
+		ensure_approximately_equals("Source max of merge is undamaged (p1)", F32(0), m1.getMax(), 22);
+		ensure_approximately_equals("Source mean of merge is undamaged (p1)", F32(0), m1.getMean(), 22);
+
+		m2.reset();
+
+		m2.record(-22.0);
+		m2.record(-1.0);
+		
+		m2.merge(m1);
+
+		ensure_equals("Count after merge (p2)", 2, m2.getCount());
+		ensure_approximately_equals("Min after merge (p2)", F32(-22.0), m2.getMin(), 22);
+		ensure_approximately_equals("Max after merge (p2)", F32(-1.0), m2.getMax(), 22);
+		ensure_approximately_equals("Mean after merge (p2)", F32(-11.5), m2.getMean(), 22);
+	}
+
+    // Testing LLSimpleStatMMM's merge() method when dst contributes nothing
+	template<> template<>
+	void stat_counter_index_object_t::test<15>()
+	{
+		LLSimpleStatMMM<> m1;
+		LLSimpleStatMMM<> m2;
+
+		m1.record(5.0);
+		m1.record(7.0);
+		m1.record(9.0);
+		
+		m2.merge(m1);
+
+		ensure_equals("Count after merge (p1)", 3, m2.getCount());
+		ensure_approximately_equals("Min after merge (p1)", F32(5.0), m2.getMin(), 22);
+		ensure_approximately_equals("Max after merge (p1)", F32(9.0), m2.getMax(), 22);
+		ensure_approximately_equals("Mean after merge (p1)", F32(7.000), m2.getMean(), 22);
+
+		ensure_equals("Source count of merge is undamaged (p1)", 3, m1.getCount());
+		ensure_approximately_equals("Source min of merge is undamaged (p1)", F32(5.0), m1.getMin(), 22);
+		ensure_approximately_equals("Source max of merge is undamaged (p1)", F32(9.0), m1.getMax(), 22);
+		ensure_approximately_equals("Source mean of merge is undamaged (p1)", F32(7.0), m1.getMean(), 22);
+
+		m1.reset();
+		m2.reset();
+		
+		m1.record(-22.0);
+		m1.record(-1.0);
+		
+		m2.merge(m1);
+
+		ensure_equals("Count after merge (p2)", 2, m2.getCount());
+		ensure_approximately_equals("Min after merge (p2)", F32(-22.0), m2.getMin(), 22);
+		ensure_approximately_equals("Max after merge (p2)", F32(-1.0), m2.getMax(), 22);
+		ensure_approximately_equals("Mean after merge (p2)", F32(-11.5), m2.getMean(), 22);
+	}
+
+    // Testing LLSimpleStatMMM's merge() method when neither dst nor src contributes
+	template<> template<>
+	void stat_counter_index_object_t::test<16>()
+	{
+		LLSimpleStatMMM<> m1;
+		LLSimpleStatMMM<> m2;
+
+		m2.merge(m1);
+
+		ensure_equals("Count after merge (p1)", 0, m2.getCount());
+		ensure_approximately_equals("Min after merge (p1)", F32(0), m2.getMin(), 22);
+		ensure_approximately_equals("Max after merge (p1)", F32(0), m2.getMax(), 22);
+		ensure_approximately_equals("Mean after merge (p1)", F32(0), m2.getMean(), 22);
+
+		ensure_equals("Source count of merge is undamaged (p1)", 0, m1.getCount());
+		ensure_approximately_equals("Source min of merge is undamaged (p1)", F32(0), m1.getMin(), 22);
+		ensure_approximately_equals("Source max of merge is undamaged (p1)", F32(0), m1.getMax(), 22);
+		ensure_approximately_equals("Source mean of merge is undamaged (p1)", F32(0), m1.getMean(), 22);
+	}
+}
diff --git a/indra/newview/tests/llviewerassetstats_test.cpp b/indra/newview/tests/llviewerassetstats_test.cpp
new file mode 100644
index 0000000000..1bb4fb7c0c
--- /dev/null
+++ b/indra/newview/tests/llviewerassetstats_test.cpp
@@ -0,0 +1,990 @@
+/** 
+ * @file llviewerassetstats_tut.cpp
+ * @date 2010-10-28
+ * @brief Test cases for some of newview/llviewerassetstats.cpp
+ *
+ * $LicenseInfo:firstyear=2010&license=viewergpl$
+ * 
+ * Copyright (c) 2010, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "linden_common.h"
+
+#include <tut/tut.hpp>
+#include <iostream>
+
+#include "lltut.h"
+#include "../llviewerassetstats.h"
+#include "lluuid.h"
+#include "llsdutil.h"
+#include "llregionhandle.h"
+
+static const char * all_keys[] = 
+{
+	"duration",
+	"fps",
+	"get_other",
+	"get_texture_temp_http",
+	"get_texture_temp_udp",
+	"get_texture_non_temp_http",
+	"get_texture_non_temp_udp",
+	"get_wearable_udp",
+	"get_sound_udp",
+	"get_gesture_udp"
+};
+
+static const char * resp_keys[] = 
+{
+	"get_other",
+	"get_texture_temp_http",
+	"get_texture_temp_udp",
+	"get_texture_non_temp_http",
+	"get_texture_non_temp_udp",
+	"get_wearable_udp",
+	"get_sound_udp",
+	"get_gesture_udp"
+};
+
+static const char * sub_keys[] =
+{
+	"dequeued",
+	"enqueued",
+	"resp_count",
+	"resp_max",
+	"resp_min",
+	"resp_mean"
+};
+
+static const char * mmm_resp_keys[] = 
+{
+	"fps"
+};
+
+static const char * mmm_sub_keys[] =
+{
+	"count",
+	"max",
+	"min",
+	"mean"
+};
+
+static const LLUUID region1("4e2d81a3-6263-6ffe-ad5c-8ce04bee07e8");
+static const LLUUID region2("68762cc8-b68b-4e45-854b-e830734f2d4a");
+static const U64 region1_handle(0x0000040000003f00ULL);
+static const U64 region2_handle(0x0000030000004200ULL);
+static const std::string region1_handle_str("0000040000003f00");
+static const std::string region2_handle_str("0000030000004200");
+
+#if 0
+static bool
+is_empty_map(const LLSD & sd)
+{
+	return sd.isMap() && 0 == sd.size();
+}
+
+static bool
+is_single_key_map(const LLSD & sd, const std::string & key)
+{
+	return sd.isMap() && 1 == sd.size() && sd.has(key);
+}
+#endif
+
+static bool
+is_double_key_map(const LLSD & sd, const std::string & key1, const std::string & key2)
+{
+	return sd.isMap() && 2 == sd.size() && sd.has(key1) && sd.has(key2);
+}
+
+static bool
+is_no_stats_map(const LLSD & sd)
+{
+	return is_double_key_map(sd, "duration", "regions");
+}
+
+static bool
+is_single_slot_array(const LLSD & sd, U64 region_handle)
+{
+	U32 grid_x(0), grid_y(0);
+	grid_from_region_handle(region_handle, &grid_x, &grid_y);
+	
+	return (sd.isArray() &&
+			1 == sd.size() &&
+			sd[0].has("grid_x") &&
+			sd[0].has("grid_y") &&
+			sd[0]["grid_x"].isInteger() &&
+			sd[0]["grid_y"].isInteger() &&
+			grid_x == sd[0]["grid_x"].asInteger() &&
+			grid_y == sd[0]["grid_y"].asInteger());
+}
+
+static bool
+is_double_slot_array(const LLSD & sd, U64 region_handle1, U64 region_handle2)
+{
+	U32 grid_x1(0), grid_y1(0);
+	U32 grid_x2(0), grid_y2(0);
+	grid_from_region_handle(region_handle1, &grid_x1, &grid_y1);
+	grid_from_region_handle(region_handle2, &grid_x2, &grid_y2);
+	
+	return (sd.isArray() &&
+			2 == sd.size() &&
+			sd[0].has("grid_x") &&
+			sd[0].has("grid_y") &&
+			sd[0]["grid_x"].isInteger() &&
+			sd[0]["grid_y"].isInteger() &&
+			sd[1].has("grid_x") &&
+			sd[1].has("grid_y") &&
+			sd[1]["grid_x"].isInteger() &&
+			sd[1]["grid_y"].isInteger() &&
+			((grid_x1 == sd[0]["grid_x"].asInteger() &&
+			  grid_y1 == sd[0]["grid_y"].asInteger() &&
+			  grid_x2 == sd[1]["grid_x"].asInteger() &&
+			  grid_y2 == sd[1]["grid_y"].asInteger()) ||
+			 (grid_x1 == sd[1]["grid_x"].asInteger() &&
+			  grid_y1 == sd[1]["grid_y"].asInteger() &&
+			  grid_x2 == sd[0]["grid_x"].asInteger() &&
+			  grid_y2 == sd[0]["grid_y"].asInteger())));
+}
+
+static LLSD
+get_region(const LLSD & sd, U64 region_handle1)
+{
+	U32 grid_x(0), grid_y(0);
+	grid_from_region_handle(region_handle1, &grid_x, &grid_y);
+
+	for (LLSD::array_const_iterator it(sd["regions"].beginArray());
+		 sd["regions"].endArray() != it;
+		 ++it)
+	{
+		if ((*it).has("grid_x") &&
+			(*it).has("grid_y") &&
+			(*it)["grid_x"].isInteger() &&
+			(*it)["grid_y"].isInteger() &&
+			(*it)["grid_x"].asInteger() == grid_x &&
+			(*it)["grid_y"].asInteger() == grid_y)
+		{
+			return *it;
+		}
+	}
+	return LLSD();
+}
+
+namespace tut
+{
+	struct tst_viewerassetstats_index
+	{};
+	typedef test_group<tst_viewerassetstats_index> tst_viewerassetstats_index_t;
+	typedef tst_viewerassetstats_index_t::object tst_viewerassetstats_index_object_t;
+	tut::tst_viewerassetstats_index_t tut_tst_viewerassetstats_index("tst_viewerassetstats_test");
+
+	// Testing free functions without global stats allocated
+	template<> template<>
+	void tst_viewerassetstats_index_object_t::test<1>()
+	{
+		// Check that helpers aren't bothered by missing global stats
+		ensure("Global gViewerAssetStatsMain should be NULL", (NULL == gViewerAssetStatsMain));
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_TEXTURE, false, false);
+
+		LLViewerAssetStatsFF::record_dequeue_main(LLViewerAssetType::AT_TEXTURE, false, false);
+
+		LLViewerAssetStatsFF::record_response_main(LLViewerAssetType::AT_GESTURE, false, false, 12300000ULL);
+	}
+
+	// Create a non-global instance and check the structure
+	template<> template<>
+	void tst_viewerassetstats_index_object_t::test<2>()
+	{
+		ensure("Global gViewerAssetStatsMain should be NULL", (NULL == gViewerAssetStatsMain));
+
+		LLViewerAssetStats * it = new LLViewerAssetStats();
+
+		ensure("Global gViewerAssetStatsMain should still be NULL", (NULL == gViewerAssetStatsMain));
+
+		LLSD sd_full = it->asLLSD(false);
+
+		// Default (NULL) region ID doesn't produce LLSD results so should
+		// get an empty map back from output
+		ensure("Stat-less LLSD initially", is_no_stats_map(sd_full));
+
+		// Once the region is set, we will get a response even with no data collection
+		it->setRegion(region1_handle);
+		sd_full = it->asLLSD(false);
+		ensure("Correct single-key LLSD map root", is_double_key_map(sd_full, "duration", "regions"));
+		ensure("Correct single-slot LLSD array regions", is_single_slot_array(sd_full["regions"], region1_handle));
+		
+		LLSD sd = sd_full["regions"][0];
+
+		delete it;
+			
+		// Check the structure of the LLSD
+		for (int i = 0; i < LL_ARRAY_SIZE(all_keys); ++i)
+		{
+			std::string line = llformat("Has '%s' key", all_keys[i]);
+			ensure(line, sd.has(all_keys[i]));
+		}
+
+		for (int i = 0; i < LL_ARRAY_SIZE(resp_keys); ++i)
+		{
+			for (int j = 0; j < LL_ARRAY_SIZE(sub_keys); ++j)
+			{
+				std::string line = llformat("Key '%s' has '%s' key", resp_keys[i], sub_keys[j]);
+				ensure(line, sd[resp_keys[i]].has(sub_keys[j]));
+			}
+		}
+
+		for (int i = 0; i < LL_ARRAY_SIZE(mmm_resp_keys); ++i)
+		{
+			for (int j = 0; j < LL_ARRAY_SIZE(mmm_sub_keys); ++j)
+			{
+				std::string line = llformat("Key '%s' has '%s' key", mmm_resp_keys[i], mmm_sub_keys[j]);
+				ensure(line, sd[mmm_resp_keys[i]].has(mmm_sub_keys[j]));
+			}
+		}
+	}
+
+	// Create a non-global instance and check some content
+	template<> template<>
+	void tst_viewerassetstats_index_object_t::test<3>()
+	{
+		LLViewerAssetStats * it = new LLViewerAssetStats();
+		it->setRegion(region1_handle);
+		
+		LLSD sd = it->asLLSD(false);
+		ensure("Correct single-key LLSD map root", is_double_key_map(sd, "regions", "duration"));
+		ensure("Correct single-slot LLSD array regions", is_single_slot_array(sd["regions"], region1_handle));
+		sd = sd[0];
+		
+		delete it;
+
+		// Check a few points on the tree for content
+		ensure("sd[get_texture_temp_http][dequeued] is 0", (0 == sd["get_texture_temp_http"]["dequeued"].asInteger()));
+		ensure("sd[get_sound_udp][resp_min] is 0", (0.0 == sd["get_sound_udp"]["resp_min"].asReal()));
+	}
+
+	// Create a global instance and verify free functions do something useful
+	template<> template<>
+	void tst_viewerassetstats_index_object_t::test<4>()
+	{
+		gViewerAssetStatsMain = new LLViewerAssetStats();
+		LLViewerAssetStatsFF::set_region_main(region1_handle);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_TEXTURE, false, false);
+		LLViewerAssetStatsFF::record_dequeue_main(LLViewerAssetType::AT_TEXTURE, false, false);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_BODYPART, false, false);
+		LLViewerAssetStatsFF::record_dequeue_main(LLViewerAssetType::AT_BODYPART, false, false);
+
+		LLSD sd = gViewerAssetStatsMain->asLLSD(false);
+		ensure("Correct single-key LLSD map root", is_double_key_map(sd, "regions", "duration"));
+		ensure("Correct single-slot LLSD array regions", is_single_slot_array(sd["regions"], region1_handle));
+		sd = sd["regions"][0];
+		
+		// Check a few points on the tree for content
+		ensure("sd[get_texture_non_temp_udp][enqueued] is 1", (1 == sd["get_texture_non_temp_udp"]["enqueued"].asInteger()));
+		ensure("sd[get_texture_temp_udp][enqueued] is 0", (0 == sd["get_texture_temp_udp"]["enqueued"].asInteger()));
+		ensure("sd[get_texture_non_temp_http][enqueued] is 0", (0 == sd["get_texture_non_temp_http"]["enqueued"].asInteger()));
+		ensure("sd[get_texture_temp_http][enqueued] is 0", (0 == sd["get_texture_temp_http"]["enqueued"].asInteger()));
+		ensure("sd[get_gesture_udp][dequeued] is 0", (0 == sd["get_gesture_udp"]["dequeued"].asInteger()));
+
+		// Reset and check zeros...
+		// Reset leaves current region in place
+		gViewerAssetStatsMain->reset();
+		sd = gViewerAssetStatsMain->asLLSD(false)["regions"][region1_handle_str];
+		
+		delete gViewerAssetStatsMain;
+		gViewerAssetStatsMain = NULL;
+
+		ensure("sd[get_texture_non_temp_udp][enqueued] is reset", (0 == sd["get_texture_non_temp_udp"]["enqueued"].asInteger()));
+		ensure("sd[get_gesture_udp][dequeued] is reset", (0 == sd["get_gesture_udp"]["dequeued"].asInteger()));
+	}
+
+	// Create two global instances and verify no interactions
+	template<> template<>
+	void tst_viewerassetstats_index_object_t::test<5>()
+	{
+		gViewerAssetStatsThread1 = new LLViewerAssetStats();
+		gViewerAssetStatsMain = new LLViewerAssetStats();
+		LLViewerAssetStatsFF::set_region_main(region1_handle);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_TEXTURE, false, false);
+		LLViewerAssetStatsFF::record_dequeue_main(LLViewerAssetType::AT_TEXTURE, false, false);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_BODYPART, false, false);
+		LLViewerAssetStatsFF::record_dequeue_main(LLViewerAssetType::AT_BODYPART, false, false);
+
+		LLSD sd = gViewerAssetStatsThread1->asLLSD(false);
+		ensure("Other collector is empty", is_no_stats_map(sd));
+		sd = gViewerAssetStatsMain->asLLSD(false);
+		ensure("Correct single-key LLSD map root", is_double_key_map(sd, "regions", "duration"));
+		ensure("Correct single-slot LLSD array regions", is_single_slot_array(sd["regions"], region1_handle));
+		sd = sd["regions"][0];
+		
+		// Check a few points on the tree for content
+		ensure("sd[get_texture_non_temp_udp][enqueued] is 1", (1 == sd["get_texture_non_temp_udp"]["enqueued"].asInteger()));
+		ensure("sd[get_texture_temp_udp][enqueued] is 0", (0 == sd["get_texture_temp_udp"]["enqueued"].asInteger()));
+		ensure("sd[get_texture_non_temp_http][enqueued] is 0", (0 == sd["get_texture_non_temp_http"]["enqueued"].asInteger()));
+		ensure("sd[get_texture_temp_http][enqueued] is 0", (0 == sd["get_texture_temp_http"]["enqueued"].asInteger()));
+		ensure("sd[get_gesture_udp][dequeued] is 0", (0 == sd["get_gesture_udp"]["dequeued"].asInteger()));
+
+		// Reset and check zeros...
+		// Reset leaves current region in place
+		gViewerAssetStatsMain->reset();
+		sd = gViewerAssetStatsMain->asLLSD(false)["regions"][0];
+		
+		delete gViewerAssetStatsMain;
+		gViewerAssetStatsMain = NULL;
+		delete gViewerAssetStatsThread1;
+		gViewerAssetStatsThread1 = NULL;
+
+		ensure("sd[get_texture_non_temp_udp][enqueued] is reset", (0 == sd["get_texture_non_temp_udp"]["enqueued"].asInteger()));
+		ensure("sd[get_gesture_udp][dequeued] is reset", (0 == sd["get_gesture_udp"]["dequeued"].asInteger()));
+	}
+
+    // Check multiple region collection
+	template<> template<>
+	void tst_viewerassetstats_index_object_t::test<6>()
+	{
+		gViewerAssetStatsMain = new LLViewerAssetStats();
+
+		LLViewerAssetStatsFF::set_region_main(region1_handle);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_TEXTURE, false, false);
+		LLViewerAssetStatsFF::record_dequeue_main(LLViewerAssetType::AT_TEXTURE, false, false);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_BODYPART, false, false);
+		LLViewerAssetStatsFF::record_dequeue_main(LLViewerAssetType::AT_BODYPART, false, false);
+
+		LLViewerAssetStatsFF::set_region_main(region2_handle);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_GESTURE, false, false);
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_GESTURE, false, false);
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_GESTURE, false, false);
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_GESTURE, false, false);
+
+		LLSD sd = gViewerAssetStatsMain->asLLSD(false);
+
+		// std::cout << sd << std::endl;
+		
+		ensure("Correct double-key LLSD map root", is_double_key_map(sd, "duration", "regions"));
+		ensure("Correct double-slot LLSD array regions", is_double_slot_array(sd["regions"], region1_handle, region2_handle));
+		LLSD sd1 = get_region(sd, region1_handle);
+		LLSD sd2 = get_region(sd, region2_handle);
+		ensure("Region1 is present in results", sd1.isMap());
+		ensure("Region2 is present in results", sd2.isMap());
+		
+		// Check a few points on the tree for content
+		ensure_equals("sd1[get_texture_non_temp_udp][enqueued] is 1", sd1["get_texture_non_temp_udp"]["enqueued"].asInteger(), 1);
+		ensure_equals("sd1[get_texture_temp_udp][enqueued] is 0", sd1["get_texture_temp_udp"]["enqueued"].asInteger(), 0);
+		ensure_equals("sd1[get_texture_non_temp_http][enqueued] is 0", sd1["get_texture_non_temp_http"]["enqueued"].asInteger(), 0);
+		ensure_equals("sd1[get_texture_temp_http][enqueued] is 0", sd1["get_texture_temp_http"]["enqueued"].asInteger(), 0);
+		ensure_equals("sd1[get_gesture_udp][dequeued] is 0", sd1["get_gesture_udp"]["dequeued"].asInteger(), 0);
+
+		// Check a few points on the tree for content
+		ensure("sd2[get_gesture_udp][enqueued] is 4", (4 == sd2["get_gesture_udp"]["enqueued"].asInteger()));
+		ensure("sd2[get_gesture_udp][dequeued] is 0", (0 == sd2["get_gesture_udp"]["dequeued"].asInteger()));
+		ensure("sd2[get_texture_non_temp_udp][enqueued] is 0", (0 == sd2["get_texture_non_temp_udp"]["enqueued"].asInteger()));
+
+		// Reset and check zeros...
+		// Reset leaves current region in place
+		gViewerAssetStatsMain->reset();
+		sd = gViewerAssetStatsMain->asLLSD(false);
+		ensure("Correct single-key LLSD map root", is_double_key_map(sd, "regions", "duration"));
+		ensure("Correct single-slot LLSD array regions (p2)", is_single_slot_array(sd["regions"], region2_handle));
+		sd2 = sd["regions"][0];
+		
+		delete gViewerAssetStatsMain;
+		gViewerAssetStatsMain = NULL;
+
+		ensure("sd2[get_texture_non_temp_udp][enqueued] is reset", (0 == sd2["get_texture_non_temp_udp"]["enqueued"].asInteger()));
+		ensure("sd2[get_gesture_udp][enqueued] is reset", (0 == sd2["get_gesture_udp"]["enqueued"].asInteger()));
+	}
+
+    // Check multiple region collection jumping back-and-forth between regions
+	template<> template<>
+	void tst_viewerassetstats_index_object_t::test<7>()
+	{
+		gViewerAssetStatsMain = new LLViewerAssetStats();
+
+		LLViewerAssetStatsFF::set_region_main(region1_handle);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_TEXTURE, false, false);
+		LLViewerAssetStatsFF::record_dequeue_main(LLViewerAssetType::AT_TEXTURE, false, false);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_BODYPART, false, false);
+		LLViewerAssetStatsFF::record_dequeue_main(LLViewerAssetType::AT_BODYPART, false, false);
+
+		LLViewerAssetStatsFF::set_region_main(region2_handle);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_GESTURE, false, false);
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_GESTURE, false, false);
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_GESTURE, false, false);
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_GESTURE, false, false);
+
+		LLViewerAssetStatsFF::set_region_main(region1_handle);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_TEXTURE, true, true);
+		LLViewerAssetStatsFF::record_dequeue_main(LLViewerAssetType::AT_TEXTURE, true, true);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_BODYPART, false, false);
+		LLViewerAssetStatsFF::record_dequeue_main(LLViewerAssetType::AT_BODYPART, false, false);
+
+		LLViewerAssetStatsFF::set_region_main(region2_handle);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_GESTURE, false, false);
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_GESTURE, false, false);
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_GESTURE, false, false);
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_GESTURE, false, false);
+
+		LLSD sd = gViewerAssetStatsMain->asLLSD(false);
+
+		ensure("Correct double-key LLSD map root", is_double_key_map(sd, "duration", "regions"));
+		ensure("Correct double-slot LLSD array regions", is_double_slot_array(sd["regions"], region1_handle, region2_handle));
+		LLSD sd1 = get_region(sd, region1_handle);
+		LLSD sd2 = get_region(sd, region2_handle);
+		ensure("Region1 is present in results", sd1.isMap());
+		ensure("Region2 is present in results", sd2.isMap());
+		
+		// Check a few points on the tree for content
+		ensure("sd1[get_texture_non_temp_udp][enqueued] is 1", (1 == sd1["get_texture_non_temp_udp"]["enqueued"].asInteger()));
+		ensure("sd1[get_texture_temp_udp][enqueued] is 0", (0 == sd1["get_texture_temp_udp"]["enqueued"].asInteger()));
+		ensure("sd1[get_texture_non_temp_http][enqueued] is 0", (0 == sd1["get_texture_non_temp_http"]["enqueued"].asInteger()));
+		ensure("sd1[get_texture_temp_http][enqueued] is 1", (1 == sd1["get_texture_temp_http"]["enqueued"].asInteger()));
+		ensure("sd1[get_gesture_udp][dequeued] is 0", (0 == sd1["get_gesture_udp"]["dequeued"].asInteger()));
+
+		// Check a few points on the tree for content
+		ensure("sd2[get_gesture_udp][enqueued] is 8", (8 == sd2["get_gesture_udp"]["enqueued"].asInteger()));
+		ensure("sd2[get_gesture_udp][dequeued] is 0", (0 == sd2["get_gesture_udp"]["dequeued"].asInteger()));
+		ensure("sd2[get_texture_non_temp_udp][enqueued] is 0", (0 == sd2["get_texture_non_temp_udp"]["enqueued"].asInteger()));
+
+		// Reset and check zeros...
+		// Reset leaves current region in place
+		gViewerAssetStatsMain->reset();
+		sd = gViewerAssetStatsMain->asLLSD(false);
+		ensure("Correct single-key LLSD map root", is_double_key_map(sd, "duration", "regions"));
+		ensure("Correct single-slot LLSD array regions (p2)", is_single_slot_array(sd["regions"], region2_handle));
+		sd2 = get_region(sd, region2_handle);
+		ensure("Region2 is present in results", sd2.isMap());
+		
+		delete gViewerAssetStatsMain;
+		gViewerAssetStatsMain = NULL;
+
+		ensure_equals("sd2[get_texture_non_temp_udp][enqueued] is reset", sd2["get_texture_non_temp_udp"]["enqueued"].asInteger(), 0);
+		ensure_equals("sd2[get_gesture_udp][enqueued] is reset", sd2["get_gesture_udp"]["enqueued"].asInteger(), 0);
+	}
+
+	// Non-texture assets ignore transport and persistence flags
+	template<> template<>
+	void tst_viewerassetstats_index_object_t::test<8>()
+	{
+		gViewerAssetStatsThread1 = new LLViewerAssetStats();
+		gViewerAssetStatsMain = new LLViewerAssetStats();
+		LLViewerAssetStatsFF::set_region_main(region1_handle);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_TEXTURE, false, false);
+		LLViewerAssetStatsFF::record_dequeue_main(LLViewerAssetType::AT_TEXTURE, false, false);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_BODYPART, false, false);
+		LLViewerAssetStatsFF::record_dequeue_main(LLViewerAssetType::AT_BODYPART, false, false);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_BODYPART, false, true);
+		LLViewerAssetStatsFF::record_dequeue_main(LLViewerAssetType::AT_BODYPART, false, true);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_BODYPART, true, false);
+		LLViewerAssetStatsFF::record_dequeue_main(LLViewerAssetType::AT_BODYPART, true, false);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_BODYPART, true, true);
+		LLViewerAssetStatsFF::record_dequeue_main(LLViewerAssetType::AT_BODYPART, true, true);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_LSL_BYTECODE, false, false);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_LSL_BYTECODE, false, true);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_LSL_BYTECODE, true, false);
+
+		LLViewerAssetStatsFF::record_enqueue_main(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		LLSD sd = gViewerAssetStatsThread1->asLLSD(false);
+		ensure("Other collector is empty", is_no_stats_map(sd));
+		sd = gViewerAssetStatsMain->asLLSD(false);
+		ensure("Correct single-key LLSD map root", is_double_key_map(sd, "regions", "duration"));
+		ensure("Correct single-slot LLSD array regions", is_single_slot_array(sd["regions"], region1_handle));
+		sd = get_region(sd, region1_handle);
+		ensure("Region1 is present in results", sd.isMap());
+		
+		// Check a few points on the tree for content
+		ensure("sd[get_gesture_udp][enqueued] is 0", (0 == sd["get_gesture_udp"]["enqueued"].asInteger()));
+		ensure("sd[get_gesture_udp][dequeued] is 0", (0 == sd["get_gesture_udp"]["dequeued"].asInteger()));
+
+		ensure("sd[get_wearable_udp][enqueued] is 4", (4 == sd["get_wearable_udp"]["enqueued"].asInteger()));
+		ensure("sd[get_wearable_udp][dequeued] is 4", (4 == sd["get_wearable_udp"]["dequeued"].asInteger()));
+
+		ensure("sd[get_other][enqueued] is 4", (4 == sd["get_other"]["enqueued"].asInteger()));
+		ensure("sd[get_other][dequeued] is 0", (0 == sd["get_other"]["dequeued"].asInteger()));
+
+		// Reset and check zeros...
+		// Reset leaves current region in place
+		gViewerAssetStatsMain->reset();
+		sd = get_region(gViewerAssetStatsMain->asLLSD(false), region1_handle);
+		ensure("Region1 is present in results", sd.isMap());
+		
+		delete gViewerAssetStatsMain;
+		gViewerAssetStatsMain = NULL;
+		delete gViewerAssetStatsThread1;
+		gViewerAssetStatsThread1 = NULL;
+
+		ensure_equals("sd[get_texture_non_temp_udp][enqueued] is reset", sd["get_texture_non_temp_udp"]["enqueued"].asInteger(), 0);
+		ensure_equals("sd[get_gesture_udp][dequeued] is reset", sd["get_gesture_udp"]["dequeued"].asInteger(), 0);
+	}
+
+
+	// LLViewerAssetStats::merge() basic functions work
+	template<> template<>
+	void tst_viewerassetstats_index_object_t::test<9>()
+	{
+		LLViewerAssetStats s1;
+		LLViewerAssetStats s2;
+
+		s1.setRegion(region1_handle);
+		s2.setRegion(region1_handle);
+
+		s1.recordGetServiced(LLViewerAssetType::AT_TEXTURE, true, true, 5000000);
+		s1.recordGetServiced(LLViewerAssetType::AT_TEXTURE, true, true, 6000000);
+		s1.recordGetServiced(LLViewerAssetType::AT_TEXTURE, true, true, 8000000);
+		s1.recordGetServiced(LLViewerAssetType::AT_TEXTURE, true, true, 7000000);
+		s1.recordGetServiced(LLViewerAssetType::AT_TEXTURE, true, true, 9000000);
+		
+		s2.recordGetServiced(LLViewerAssetType::AT_TEXTURE, true, true, 2000000);
+		s2.recordGetServiced(LLViewerAssetType::AT_TEXTURE, true, true, 3000000);
+		s2.recordGetServiced(LLViewerAssetType::AT_TEXTURE, true, true, 4000000);
+
+		s2.merge(s1);
+
+		LLSD s2_llsd = get_region(s2.asLLSD(false), region1_handle);
+		ensure("Region1 is present in results", s2_llsd.isMap());
+		
+		ensure_equals("count after merge", s2_llsd["get_texture_temp_http"]["resp_count"].asInteger(), 8);
+		ensure_approximately_equals("min after merge", s2_llsd["get_texture_temp_http"]["resp_min"].asReal(), 2.0, 22);
+		ensure_approximately_equals("max after merge", s2_llsd["get_texture_temp_http"]["resp_max"].asReal(), 9.0, 22);
+		ensure_approximately_equals("max after merge", s2_llsd["get_texture_temp_http"]["resp_mean"].asReal(), 5.5, 22);
+	}
+
+	// LLViewerAssetStats::merge() basic functions work without corrupting source data
+	template<> template<>
+	void tst_viewerassetstats_index_object_t::test<10>()
+	{
+		LLViewerAssetStats s1;
+		LLViewerAssetStats s2;
+
+		s1.setRegion(region1_handle);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s1.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 23289200);
+		s1.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 282900);
+
+		
+		s2.setRegion(region2_handle);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s2.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 6500000);
+		s2.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 10000);
+
+		{
+			s2.merge(s1);
+			
+			LLSD src = s1.asLLSD(false);
+			LLSD dst = s2.asLLSD(false);
+
+			ensure_equals("merge src has single region", src["regions"].size(), 1);
+			ensure_equals("merge dst has dual regions", dst["regions"].size(), 2);
+			
+			// Remove time stamps, they're a problem
+			src.erase("duration");
+			src["regions"][0].erase("duration");
+			dst.erase("duration");
+			dst["regions"][0].erase("duration");
+			dst["regions"][1].erase("duration");
+
+			LLSD s1_llsd = get_region(src, region1_handle);
+			ensure("Region1 is present in src", s1_llsd.isMap());
+			LLSD s2_llsd = get_region(dst, region1_handle);
+			ensure("Region1 is present in dst", s2_llsd.isMap());
+
+			ensure("result from src is in dst", llsd_equals(s1_llsd, s2_llsd));
+		}
+
+		s1.setRegion(region1_handle);
+		s2.setRegion(region1_handle);
+		s1.reset();
+		s2.reset();
+		
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s1.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 23289200);
+		s1.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 282900);
+
+		
+		s2.setRegion(region1_handle);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s2.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 6500000);
+		s2.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 10000);
+
+		{
+			s2.merge(s1);
+			
+			LLSD src = s1.asLLSD(false);
+			LLSD dst = s2.asLLSD(false);
+
+			ensure_equals("merge src has single region (p2)", src["regions"].size(), 1);
+			ensure_equals("merge dst has single region (p2)", dst["regions"].size(), 1);
+
+			// Remove time stamps, they're a problem
+			src.erase("duration");
+			src["regions"][0].erase("duration");
+			dst.erase("duration");
+			dst["regions"][0].erase("duration");
+			
+			LLSD s1_llsd = get_region(src, region1_handle);
+			ensure("Region1 is present in src", s1_llsd.isMap());
+			LLSD s2_llsd = get_region(dst, region1_handle);
+			ensure("Region1 is present in dst", s2_llsd.isMap());
+
+			ensure_equals("src counts okay (enq)", s1_llsd["get_other"]["enqueued"].asInteger(), 4);
+			ensure_equals("src counts okay (deq)", s1_llsd["get_other"]["dequeued"].asInteger(), 4);
+			ensure_equals("src resp counts okay", s1_llsd["get_other"]["resp_count"].asInteger(), 2);
+			ensure_approximately_equals("src respmin okay", s1_llsd["get_other"]["resp_min"].asReal(), 0.2829, 20);
+			ensure_approximately_equals("src respmax okay", s1_llsd["get_other"]["resp_max"].asReal(), 23.2892, 20);
+			
+			ensure_equals("dst counts okay (enq)", s2_llsd["get_other"]["enqueued"].asInteger(), 12);
+			ensure_equals("src counts okay (deq)", s2_llsd["get_other"]["dequeued"].asInteger(), 11);
+			ensure_equals("dst resp counts okay", s2_llsd["get_other"]["resp_count"].asInteger(), 4);
+			ensure_approximately_equals("dst respmin okay", s2_llsd["get_other"]["resp_min"].asReal(), 0.010, 20);
+			ensure_approximately_equals("dst respmax okay", s2_llsd["get_other"]["resp_max"].asReal(), 23.2892, 20);
+		}
+	}
+
+
+    // Maximum merges are interesting when one side contributes nothing
+	template<> template<>
+	void tst_viewerassetstats_index_object_t::test<11>()
+	{
+		LLViewerAssetStats s1;
+		LLViewerAssetStats s2;
+
+		s1.setRegion(region1_handle);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		// Want to test negative numbers here but have to work in U64
+		s1.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 0);
+		s1.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 0);
+		s1.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 0);
+
+		s2.setRegion(region1_handle);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		{
+			s2.merge(s1);
+			
+			LLSD src = s1.asLLSD(false);
+			LLSD dst = s2.asLLSD(false);
+
+			ensure_equals("merge src has single region", src["regions"].size(), 1);
+			ensure_equals("merge dst has single region", dst["regions"].size(), 1);
+			
+			// Remove time stamps, they're a problem
+			src.erase("duration");
+			src["regions"][0].erase("duration");
+			dst.erase("duration");
+			dst["regions"][0].erase("duration");
+
+			LLSD s2_llsd = get_region(dst, region1_handle);
+			ensure("Region1 is present in dst", s2_llsd.isMap());
+			
+			ensure_equals("dst counts come from src only", s2_llsd["get_other"]["resp_count"].asInteger(), 3);
+
+			ensure_approximately_equals("dst maximum with count 0 does not contribute to merged maximum",
+										s2_llsd["get_other"]["resp_max"].asReal(), F64(0.0), 20);
+		}
+
+		// Other way around
+		s1.setRegion(region1_handle);
+		s2.setRegion(region1_handle);
+		s1.reset();
+		s2.reset();
+
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		// Want to test negative numbers here but have to work in U64
+		s1.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 0);
+		s1.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 0);
+		s1.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 0);
+
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		{
+			s1.merge(s2);
+			
+			LLSD src = s2.asLLSD(false);
+			LLSD dst = s1.asLLSD(false);
+
+			ensure_equals("merge src has single region", src["regions"].size(), 1);
+			ensure_equals("merge dst has single region", dst["regions"].size(), 1);
+			
+			// Remove time stamps, they're a problem
+			src.erase("duration");
+			src["regions"][0].erase("duration");
+			dst.erase("duration");
+			dst["regions"][0].erase("duration");
+
+			LLSD s2_llsd = get_region(dst, region1_handle);
+			ensure("Region1 is present in dst", s2_llsd.isMap());
+
+			ensure_equals("dst counts come from src only (flipped)", s2_llsd["get_other"]["resp_count"].asInteger(), 3);
+
+			ensure_approximately_equals("dst maximum with count 0 does not contribute to merged maximum (flipped)",
+										s2_llsd["get_other"]["resp_max"].asReal(), F64(0.0), 20);
+		}
+	}
+
+    // Minimum merges are interesting when one side contributes nothing
+	template<> template<>
+	void tst_viewerassetstats_index_object_t::test<12>()
+	{
+		LLViewerAssetStats s1;
+		LLViewerAssetStats s2;
+
+		s1.setRegion(region1_handle);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s1.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 3800000);
+		s1.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 2700000);
+		s1.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 2900000);
+
+		s2.setRegion(region1_handle);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		{
+			s2.merge(s1);
+			
+			LLSD src = s1.asLLSD(false);
+			LLSD dst = s2.asLLSD(false);
+
+			ensure_equals("merge src has single region", src["regions"].size(), 1);
+			ensure_equals("merge dst has single region", dst["regions"].size(), 1);
+			
+			// Remove time stamps, they're a problem
+			src.erase("duration");
+			src["regions"][0].erase("duration");
+			dst.erase("duration");
+			dst["regions"][0].erase("duration");
+
+			LLSD s2_llsd = get_region(dst, region1_handle);
+			ensure("Region1 is present in dst", s2_llsd.isMap());
+
+			ensure_equals("dst counts come from src only", s2_llsd["get_other"]["resp_count"].asInteger(), 3);
+
+			ensure_approximately_equals("dst minimum with count 0 does not contribute to merged minimum",
+										s2_llsd["get_other"]["resp_min"].asReal(), F64(2.7), 20);
+		}
+
+		// Other way around
+		s1.setRegion(region1_handle);
+		s2.setRegion(region1_handle);
+		s1.reset();
+		s2.reset();
+
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s1.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s1.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 3800000);
+		s1.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 2700000);
+		s1.recordGetServiced(LLViewerAssetType::AT_LSL_BYTECODE, true, true, 2900000);
+
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetEnqueued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+		s2.recordGetDequeued(LLViewerAssetType::AT_LSL_BYTECODE, true, true);
+
+		{
+			s1.merge(s2);
+			
+			LLSD src = s2.asLLSD(false);
+			LLSD dst = s1.asLLSD(false);
+
+			ensure_equals("merge src has single region", src["regions"].size(), 1);
+			ensure_equals("merge dst has single region", dst["regions"].size(), 1);
+			
+			// Remove time stamps, they're a problem
+			src.erase("duration");
+			src["regions"][0].erase("duration");
+			dst.erase("duration");
+			dst["regions"][0].erase("duration");
+
+			LLSD s2_llsd = get_region(dst, region1_handle);
+			ensure("Region1 is present in dst", s2_llsd.isMap());
+
+			ensure_equals("dst counts come from src only (flipped)", s2_llsd["get_other"]["resp_count"].asInteger(), 3);
+
+			ensure_approximately_equals("dst minimum with count 0 does not contribute to merged minimum (flipped)",
+										s2_llsd["get_other"]["resp_min"].asReal(), F64(2.7), 20);
+		}
+	}
+
+}