/** 
 * @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"

static const char * all_keys[] = 
{
	"duration",
	"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 LLUUID region1("4e2d81a3-6263-6ffe-ad5c-8ce04bee07e8");
static const LLUUID region2("68762cc8-b68b-4e45-854b-e830734f2d4a");

#if 0
static bool
is_empty_map(const LLSD & sd)
{
	return sd.isMap() && 0 == sd.size();
}
#endif

static bool
is_single_key_map(const LLSD & sd, const std::string & key)
{
	return sd.isMap() && 1 == sd.size() && sd.has(key);
}

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");
}

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();

		// 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->setRegionID(region1);
		sd_full = it->asLLSD();
		ensure("Correct single-key LLSD map root", is_double_key_map(sd_full, "duration", "regions"));
		ensure("Correct single-key LLSD map regions", is_single_key_map(sd_full["regions"], region1.asString()));
		
		LLSD sd = sd_full["regions"][region1.asString()];

		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]));
			}
		}
	}

	// Create a non-global instance and check some content
	template<> template<>
	void tst_viewerassetstats_index_object_t::test<3>()
	{
		LLViewerAssetStats * it = new LLViewerAssetStats();
		it->setRegionID(region1);
		
		LLSD sd = it->asLLSD();
		ensure("Correct single-key LLSD map root", is_double_key_map(sd, "regions", "duration"));
		ensure("Correct single-key LLSD map regions", is_single_key_map(sd["regions"], region1.asString()));
		sd = sd[region1.asString()];
		
		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);

		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();
		ensure("Correct single-key LLSD map root", is_double_key_map(sd, "regions", "duration"));
		ensure("Correct single-key LLSD map regions", is_single_key_map(sd["regions"], region1.asString()));
		sd = sd["regions"][region1.asString()];
		
		// 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()["regions"][region1.asString()];
		
		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);

		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();
		ensure("Other collector is empty", is_no_stats_map(sd));
		sd = gViewerAssetStatsMain->asLLSD();
		ensure("Correct single-key LLSD map root", is_double_key_map(sd, "regions", "duration"));
		ensure("Correct single-key LLSD map regions", is_single_key_map(sd["regions"], region1.asString()));
		sd = sd["regions"][region1.asString()];
		
		// 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()["regions"][region1.asString()];
		
		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);

		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);

		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();

		// std::cout << sd << std::endl;
		
		ensure("Correct double-key LLSD map root", is_double_key_map(sd, "duration", "regions"));
		ensure("Correct double-key LLSD map regions", is_double_key_map(sd["regions"], region1.asString(), region2.asString()));
		LLSD sd1 = sd["regions"][region1.asString()];
		LLSD sd2 = sd["regions"][region2.asString()];
		
		// 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 0", (0 == 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 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();
		ensure("Correct single-key LLSD map root", is_double_key_map(sd, "regions", "duration"));
		ensure("Correct single-key LLSD map regions", is_single_key_map(sd["regions"], region2.asString()));
		sd2 = sd["regions"][region2.asString()];
		
		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);

		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);

		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);

		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);

		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();

		ensure("Correct double-key LLSD map root", is_double_key_map(sd, "duration", "regions"));
		ensure("Correct double-key LLSD map regions", is_double_key_map(sd["regions"], region1.asString(), region2.asString()));
		LLSD sd1 = sd["regions"][region1.asString()];
		LLSD sd2 = sd["regions"][region2.asString()];
		
		// 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();
		ensure("Correct single-key LLSD map root", is_double_key_map(sd, "duration", "regions"));
		ensure("Correct single-key LLSD map regions", is_single_key_map(sd["regions"], region2.asString()));
		sd2 = sd["regions"][region2.asString()];
		
		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()));
	}

	// 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);

		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();
		ensure("Other collector is empty", is_no_stats_map(sd));
		sd = gViewerAssetStatsMain->asLLSD();
		ensure("Correct single-key LLSD map root", is_double_key_map(sd, "regions", "duration"));
		ensure("Correct single-key LLSD map regions", is_single_key_map(sd["regions"], region1.asString()));
		sd = sd["regions"][region1.asString()];
		
		// 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 = gViewerAssetStatsMain->asLLSD()["regions"][region1.asString()];
		
		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 that the LLSD merger knows what it's doing (basic test)
	template<> template<>
	void tst_viewerassetstats_index_object_t::test<9>()
	{
		LLSD::String reg1_name = region1.asString();
		LLSD::String reg2_name = region2.asString();

		LLSD reg1_stats = LLSD::emptyMap();
		LLSD reg2_stats = LLSD::emptyMap();

		LLSD & tmp_other1 = reg1_stats["get_other"];
		tmp_other1["enqueued"] = 4;
		tmp_other1["dequeued"] = 4;
		tmp_other1["resp_count"] = 8;
		tmp_other1["resp_max"] = F64(23.2892);
		tmp_other1["resp_min"] = F64(0.2829);
		tmp_other1["resp_mean"] = F64(2.298928);

		LLSD & tmp_other2 = reg2_stats["get_other"];
		tmp_other2["enqueued"] = 8;
		tmp_other2["dequeued"] = 7;
		tmp_other2["resp_count"] = 3;
		tmp_other2["resp_max"] = F64(6.5);
		tmp_other2["resp_min"] = F64(0.01);
		tmp_other2["resp_mean"] = F64(4.1);
		
		{
			LLSD src = LLSD::emptyMap();
			LLSD dst = LLSD::emptyMap();

			src["regions"][reg1_name] = reg1_stats;
			src["duration"] = 24;
			dst["regions"][reg2_name] = reg2_stats;
			dst["duration"] = 36;

			LLViewerAssetStats::mergeRegionsLLSD(src, dst);
		
			ensure("region 1 in merged stats", llsd_equals(reg1_stats, dst["regions"][reg1_name]));
			ensure("region 2 still in merged stats", llsd_equals(reg2_stats, dst["regions"][reg2_name]));
		}

		{
			LLSD src = LLSD::emptyMap();
			LLSD dst = LLSD::emptyMap();

			src["regions"][reg1_name] = reg1_stats;
			src["duration"] = 24;
			dst["regions"][reg1_name] = reg2_stats;
			dst["duration"] = 36;

			LLViewerAssetStats::mergeRegionsLLSD(src, dst);

			ensure("src not ruined", llsd_equals(reg1_stats, src["regions"][reg1_name]));
			ensure_equals("added enqueued counts", dst["regions"][reg1_name]["get_other"]["enqueued"].asInteger(), 12);
			ensure_equals("added dequeued counts", dst["regions"][reg1_name]["get_other"]["dequeued"].asInteger(), 11);
			ensure_equals("added response counts", dst["regions"][reg1_name]["get_other"]["resp_count"].asInteger(), 11);
			ensure_approximately_equals("min'd minimum response times", dst["regions"][reg1_name]["get_other"]["resp_min"].asReal(), 0.01, 20);
			ensure_approximately_equals("max'd maximum response times", dst["regions"][reg1_name]["get_other"]["resp_max"].asReal(), 23.2892, 20);
			ensure_approximately_equals("weighted mean of means", dst["regions"][reg1_name]["get_other"]["resp_mean"].asReal(), 2.7901295, 20);
		}
	}

	// Maximum merges are interesting when one side contributes nothing
	template<> template<>
	void tst_viewerassetstats_index_object_t::test<10>()
	{
		LLSD::String reg1_name = region1.asString();
		LLSD::String reg2_name = region2.asString();

		LLSD reg1_stats = LLSD::emptyMap();
		LLSD reg2_stats = LLSD::emptyMap();

		LLSD & tmp_other1 = reg1_stats["get_other"];
		tmp_other1["enqueued"] = 4;
		tmp_other1["dequeued"] = 4;
		tmp_other1["resp_count"] = 7;
		tmp_other1["resp_max"] = F64(-23.2892);
		tmp_other1["resp_min"] = F64(-123.2892);
		tmp_other1["resp_mean"] = F64(-58.28298);

		LLSD & tmp_other2 = reg2_stats["get_other"];
		tmp_other2["enqueued"] = 8;
		tmp_other2["dequeued"] = 7;
		tmp_other2["resp_count"] = 0;
		tmp_other2["resp_max"] = F64(0);
		tmp_other2["resp_min"] = F64(0);
		tmp_other2["resp_mean"] = F64(0);
		
		{
			LLSD src = LLSD::emptyMap();
			LLSD dst = LLSD::emptyMap();

			src["regions"][reg1_name] = reg1_stats;
			src["duration"] = 24;
			dst["regions"][reg1_name] = reg2_stats;
			dst["duration"] = 36;

			LLViewerAssetStats::mergeRegionsLLSD(src, dst);
		
			ensure_approximately_equals("dst maximum with count 0 does not contribute to merged maximum",
										dst["regions"][reg1_name]["get_other"]["resp_max"].asReal(), F64(-23.2892), 20);
		}

		{
			LLSD src = LLSD::emptyMap();
			LLSD dst = LLSD::emptyMap();

			src["regions"][reg1_name] = reg2_stats;
			src["duration"] = 24;
			dst["regions"][reg1_name] = reg1_stats;
			dst["duration"] = 36;

			LLViewerAssetStats::mergeRegionsLLSD(src, dst);
		
			ensure_approximately_equals("src maximum with count 0 does not contribute to merged maximum",
										dst["regions"][reg1_name]["get_other"]["resp_max"].asReal(), F64(-23.2892), 20);
		}
	}

    // Minimum merges are interesting when one side contributes nothing
	template<> template<>
	void tst_viewerassetstats_index_object_t::test<11>()
	{
		LLSD::String reg1_name = region1.asString();
		LLSD::String reg2_name = region2.asString();

		LLSD reg1_stats = LLSD::emptyMap();
		LLSD reg2_stats = LLSD::emptyMap();

		LLSD & tmp_other1 = reg1_stats["get_other"];
		tmp_other1["enqueued"] = 4;
		tmp_other1["dequeued"] = 4;
		tmp_other1["resp_count"] = 7;
		tmp_other1["resp_max"] = F64(123.2892);
		tmp_other1["resp_min"] = F64(23.2892);
		tmp_other1["resp_mean"] = F64(58.28298);

		LLSD & tmp_other2 = reg2_stats["get_other"];
		tmp_other2["enqueued"] = 8;
		tmp_other2["dequeued"] = 7;
		tmp_other2["resp_count"] = 0;
		tmp_other2["resp_max"] = F64(0);
		tmp_other2["resp_min"] = F64(0);
		tmp_other2["resp_mean"] = F64(0);
		
		{
			LLSD src = LLSD::emptyMap();
			LLSD dst = LLSD::emptyMap();

			src["regions"][reg1_name] = reg1_stats;
			src["duration"] = 24;
			dst["regions"][reg1_name] = reg2_stats;
			dst["duration"] = 36;

			LLViewerAssetStats::mergeRegionsLLSD(src, dst);
		
			ensure_approximately_equals("dst minimum with count 0 does not contribute to merged minimum",
										dst["regions"][reg1_name]["get_other"]["resp_min"].asReal(), F64(23.2892), 20);
		}

		{
			LLSD src = LLSD::emptyMap();
			LLSD dst = LLSD::emptyMap();

			src["regions"][reg1_name] = reg2_stats;
			src["duration"] = 24;
			dst["regions"][reg1_name] = reg1_stats;
			dst["duration"] = 36;

			LLViewerAssetStats::mergeRegionsLLSD(src, dst);
		
			ensure_approximately_equals("src minimum with count 0 does not contribute to merged minimum",
										dst["regions"][reg1_name]["get_other"]["resp_min"].asReal(), F64(23.2892), 20);
		}
	}

    // resp_count missing is taken as '0' for maximum calculation
	template<> template<>
	void tst_viewerassetstats_index_object_t::test<12>()
	{
		LLSD::String reg1_name = region1.asString();
		LLSD::String reg2_name = region2.asString();

		LLSD reg1_stats = LLSD::emptyMap();
		LLSD reg2_stats = LLSD::emptyMap();

		LLSD & tmp_other1 = reg1_stats["get_other"];
		tmp_other1["enqueued"] = 4;
		tmp_other1["dequeued"] = 4;
		tmp_other1["resp_count"] = 7;
		tmp_other1["resp_max"] = F64(-23.2892);
		tmp_other1["resp_min"] = F64(-123.2892);
		tmp_other1["resp_mean"] = F64(-58.28298);

		LLSD & tmp_other2 = reg2_stats["get_other"];
		tmp_other2["enqueued"] = 8;
		tmp_other2["dequeued"] = 7;
		// tmp_other2["resp_count"] = 0;
		tmp_other2["resp_max"] = F64(0);
		tmp_other2["resp_min"] = F64(0);
		tmp_other2["resp_mean"] = F64(0);
		
		{
			LLSD src = LLSD::emptyMap();
			LLSD dst = LLSD::emptyMap();

			src["regions"][reg1_name] = reg1_stats;
			src["duration"] = 24;
			dst["regions"][reg1_name] = reg2_stats;
			dst["duration"] = 36;

			LLViewerAssetStats::mergeRegionsLLSD(src, dst);
		
			ensure_approximately_equals("dst maximum with undefined count does not contribute to merged maximum",
										dst["regions"][reg1_name]["get_other"]["resp_max"].asReal(), F64(-23.2892), 20);
		}

		{
			LLSD src = LLSD::emptyMap();
			LLSD dst = LLSD::emptyMap();

			src["regions"][reg1_name] = reg2_stats;
			src["duration"] = 24;
			dst["regions"][reg1_name] = reg1_stats;
			dst["duration"] = 36;

			LLViewerAssetStats::mergeRegionsLLSD(src, dst);
		
			ensure_approximately_equals("src maximum with undefined count does not contribute to merged maximum",
										dst["regions"][reg1_name]["get_other"]["resp_max"].asReal(), F64(-23.2892), 20);
		}
	}

    // resp_count unspecified is taken as 0 for minimum merges
	template<> template<>
	void tst_viewerassetstats_index_object_t::test<13>()
	{
		LLSD::String reg1_name = region1.asString();
		LLSD::String reg2_name = region2.asString();

		LLSD reg1_stats = LLSD::emptyMap();
		LLSD reg2_stats = LLSD::emptyMap();

		LLSD & tmp_other1 = reg1_stats["get_other"];
		tmp_other1["enqueued"] = 4;
		tmp_other1["dequeued"] = 4;
		tmp_other1["resp_count"] = 7;
		tmp_other1["resp_max"] = F64(123.2892);
		tmp_other1["resp_min"] = F64(23.2892);
		tmp_other1["resp_mean"] = F64(58.28298);

		LLSD & tmp_other2 = reg2_stats["get_other"];
		tmp_other2["enqueued"] = 8;
		tmp_other2["dequeued"] = 7;
		// tmp_other2["resp_count"] = 0;
		tmp_other2["resp_max"] = F64(0);
		tmp_other2["resp_min"] = F64(0);
		tmp_other2["resp_mean"] = F64(0);
		
		{
			LLSD src = LLSD::emptyMap();
			LLSD dst = LLSD::emptyMap();

			src["regions"][reg1_name] = reg1_stats;
			src["duration"] = 24;
			dst["regions"][reg1_name] = reg2_stats;
			dst["duration"] = 36;

			LLViewerAssetStats::mergeRegionsLLSD(src, dst);
		
			ensure_approximately_equals("dst minimum with undefined count does not contribute to merged minimum",
										dst["regions"][reg1_name]["get_other"]["resp_min"].asReal(), F64(23.2892), 20);
		}

		{
			LLSD src = LLSD::emptyMap();
			LLSD dst = LLSD::emptyMap();

			src["regions"][reg1_name] = reg2_stats;
			src["duration"] = 24;
			dst["regions"][reg1_name] = reg1_stats;
			dst["duration"] = 36;

			LLViewerAssetStats::mergeRegionsLLSD(src, dst);
		
			ensure_approximately_equals("src minimum with undefined count does not contribute to merged minimum",
										dst["regions"][reg1_name]["get_other"]["resp_min"].asReal(), F64(23.2892), 20);
		}
	}
}