From 4e249fb3fbf75f0359758760d88e22aa5b14533c Mon Sep 17 00:00:00 2001
From: Perttu Ahola <celeron55@gmail.com>
Date: Sat, 27 Nov 2010 01:02:21 +0200
Subject: Initial files

---
 src/test.cpp | 920 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 920 insertions(+)
 create mode 100644 src/test.cpp

(limited to 'src/test.cpp')

diff --git a/src/test.cpp b/src/test.cpp
new file mode 100644
index 000000000..8cdd84426
--- /dev/null
+++ b/src/test.cpp
@@ -0,0 +1,920 @@
+#include "test.h"
+#include "common_irrlicht.h"
+
+#include "debug.h"
+#include "map.h"
+#include "player.h"
+#include "main.h"
+#include "heightmap.h"
+#include "socket.h"
+#include "connection.h"
+#include "utility.h"
+#include "serialization.h"
+#include <sstream>
+
+#ifdef _WIN32
+	#include <windows.h>
+	#define sleep_ms(x) Sleep(x)
+#else
+	#include <unistd.h>
+	#define sleep_ms(x) usleep(x*1000)
+#endif
+
+/*
+	Asserts that the exception occurs
+*/
+#define EXCEPTION_CHECK(EType, code)\
+{\
+	bool exception_thrown = false;\
+	try{ code; }\
+	catch(EType &e) { exception_thrown = true; }\
+	assert(exception_thrown);\
+}
+
+struct TestUtilities
+{
+	void Run()
+	{
+		/*dstream<<"wrapDegrees(100.0) = "<<wrapDegrees(100.0)<<std::endl;
+		dstream<<"wrapDegrees(720.5) = "<<wrapDegrees(720.5)<<std::endl;
+		dstream<<"wrapDegrees(-0.5) = "<<wrapDegrees(-0.5)<<std::endl;*/
+		assert(fabs(wrapDegrees(100.0) - 100.0) < 0.001);
+		assert(fabs(wrapDegrees(720.5) - 0.5) < 0.001);
+		assert(fabs(wrapDegrees(-0.5) - (-0.5)) < 0.001);
+		assert(fabs(wrapDegrees(-365.5) - (-5.5)) < 0.001);
+		assert(lowercase("Foo bAR") == "foo bar");
+		assert(is_yes("YeS") == true);
+		assert(is_yes("") == false);
+		assert(is_yes("FAlse") == false);
+	}
+};
+		
+struct TestCompress
+{
+	void Run()
+	{
+		SharedBuffer<u8> fromdata(4);
+		fromdata[0]=1;
+		fromdata[1]=5;
+		fromdata[2]=5;
+		fromdata[3]=1;
+		
+		std::ostringstream os(std::ios_base::binary);
+		compress(fromdata, os, 0);
+
+		std::string str_out = os.str();
+		
+		dstream<<"str_out.size()="<<str_out.size()<<std::endl;
+		dstream<<"TestCompress: 1,5,5,1 -> ";
+		for(u32 i=0; i<str_out.size(); i++)
+		{
+			dstream<<(u32)str_out[i]<<",";
+		}
+		dstream<<std::endl;
+
+		assert(str_out.size() == 10);
+
+		assert(str_out[0] == 0);
+		assert(str_out[1] == 0);
+		assert(str_out[2] == 0);
+		assert(str_out[3] == 4);
+		assert(str_out[4] == 0);
+		assert(str_out[5] == 1);
+		assert(str_out[6] == 1);
+		assert(str_out[7] == 5);
+		assert(str_out[8] == 0);
+		assert(str_out[9] == 1);
+
+		std::istringstream is(str_out, std::ios_base::binary);
+		std::ostringstream os2(std::ios_base::binary);
+
+		decompress(is, os2, 0);
+		std::string str_out2 = os2.str();
+
+		dstream<<"decompress: ";
+		for(u32 i=0; i<str_out2.size(); i++)
+		{
+			dstream<<(u32)str_out2[i]<<",";
+		}
+		dstream<<std::endl;
+
+		assert(str_out2.size() == fromdata.getSize());
+
+		for(u32 i=0; i<str_out2.size(); i++)
+		{
+			assert(str_out2[i] == fromdata[i]);
+		}
+	}
+};
+
+struct TestMapNode
+{
+	void Run()
+	{
+		MapNode n;
+
+		// Default values
+		assert(n.d == MATERIAL_AIR);
+		assert(n.getLight() == 0);
+		
+		// Transparency
+		n.d = MATERIAL_AIR;
+		assert(n.light_propagates() == true);
+		n.d = 0;
+		assert(n.light_propagates() == false);
+	}
+};
+
+struct TestMapBlock
+{
+	class TC : public NodeContainer
+	{
+	public:
+
+		MapNode node;
+		bool position_valid;
+		core::list<v3s16> validity_exceptions;
+
+		TC()
+		{
+			position_valid = true;
+		}
+
+		virtual bool isValidPosition(v3s16 p)
+		{
+			//return position_valid ^ (p==position_valid_exception);
+			bool exception = false;
+			for(core::list<v3s16>::Iterator i=validity_exceptions.begin();
+					i != validity_exceptions.end(); i++)
+			{
+				if(p == *i)
+				{
+					exception = true;
+					break;
+				}
+			}
+			return exception ? !position_valid : position_valid;
+		}
+
+		virtual MapNode getNode(v3s16 p)
+		{
+			if(isValidPosition(p) == false)
+				throw InvalidPositionException();
+			return node;
+		}
+
+		virtual void setNode(v3s16 p, MapNode & n)
+		{
+			if(isValidPosition(p) == false)
+				throw InvalidPositionException();
+		};
+
+		virtual u16 nodeContainerId() const
+		{
+			return 666;
+		}
+	};
+
+	void Run()
+	{
+		TC parent;
+		
+		MapBlock b(&parent, v3s16(1,1,1));
+		v3s16 relpos(MAP_BLOCKSIZE, MAP_BLOCKSIZE, MAP_BLOCKSIZE);
+
+		assert(b.getPosRelative() == relpos);
+
+		assert(b.getBox().MinEdge.X == MAP_BLOCKSIZE);
+		assert(b.getBox().MaxEdge.X == MAP_BLOCKSIZE*2-1);
+		assert(b.getBox().MinEdge.Y == MAP_BLOCKSIZE);
+		assert(b.getBox().MaxEdge.Y == MAP_BLOCKSIZE*2-1);
+		assert(b.getBox().MinEdge.Z == MAP_BLOCKSIZE);
+		assert(b.getBox().MaxEdge.Z == MAP_BLOCKSIZE*2-1);
+		
+		assert(b.isValidPosition(v3s16(0,0,0)) == true);
+		assert(b.isValidPosition(v3s16(-1,0,0)) == false);
+		assert(b.isValidPosition(v3s16(-1,-142,-2341)) == false);
+		assert(b.isValidPosition(v3s16(-124,142,2341)) == false);
+		assert(b.isValidPosition(v3s16(MAP_BLOCKSIZE-1,MAP_BLOCKSIZE-1,MAP_BLOCKSIZE-1)) == true);
+		assert(b.isValidPosition(v3s16(MAP_BLOCKSIZE-1,MAP_BLOCKSIZE,MAP_BLOCKSIZE-1)) == false);
+
+		/*
+			TODO: this method should probably be removed
+			if the block size isn't going to be set variable
+		*/
+		/*assert(b.getSizeNodes() == v3s16(MAP_BLOCKSIZE,
+				MAP_BLOCKSIZE, MAP_BLOCKSIZE));*/
+		
+		// Changed flag should be initially set
+		assert(b.getChangedFlag() == true);
+		b.resetChangedFlag();
+		assert(b.getChangedFlag() == false);
+
+		// All nodes should have been set to
+		// .d=MATERIAL_AIR and .getLight() = 0
+		for(u16 z=0; z<MAP_BLOCKSIZE; z++)
+			for(u16 y=0; y<MAP_BLOCKSIZE; y++)
+				for(u16 x=0; x<MAP_BLOCKSIZE; x++){
+					assert(b.getNode(v3s16(x,y,z)).d == MATERIAL_AIR);
+					assert(b.getNode(v3s16(x,y,z)).getLight() == 0);
+				}
+		
+		/*
+			Parent fetch functions
+		*/
+		parent.position_valid = false;
+		parent.node.d = 5;
+
+		MapNode n;
+		
+		// Positions in the block should still be valid
+		assert(b.isValidPositionParent(v3s16(0,0,0)) == true);
+		assert(b.isValidPositionParent(v3s16(MAP_BLOCKSIZE-1,MAP_BLOCKSIZE-1,MAP_BLOCKSIZE-1)) == true);
+		n = b.getNodeParent(v3s16(0,MAP_BLOCKSIZE-1,0));
+		assert(n.d == MATERIAL_AIR);
+
+		// ...but outside the block they should be invalid
+		assert(b.isValidPositionParent(v3s16(-121,2341,0)) == false);
+		assert(b.isValidPositionParent(v3s16(-1,0,0)) == false);
+		assert(b.isValidPositionParent(v3s16(MAP_BLOCKSIZE-1,MAP_BLOCKSIZE-1,MAP_BLOCKSIZE)) == false);
+		
+		{
+			bool exception_thrown = false;
+			try{
+				// This should throw an exception
+				MapNode n = b.getNodeParent(v3s16(0,0,-1));
+			}
+			catch(InvalidPositionException &e)
+			{
+				exception_thrown = true;
+			}
+			assert(exception_thrown);
+		}
+
+		parent.position_valid = true;
+		// Now the positions outside should be valid
+		assert(b.isValidPositionParent(v3s16(-121,2341,0)) == true);
+		assert(b.isValidPositionParent(v3s16(-1,0,0)) == true);
+		assert(b.isValidPositionParent(v3s16(MAP_BLOCKSIZE-1,MAP_BLOCKSIZE-1,MAP_BLOCKSIZE)) == true);
+		n = b.getNodeParent(v3s16(0,0,MAP_BLOCKSIZE));
+		assert(n.d == 5);
+
+		/*
+			Set a node
+		*/
+		v3s16 p(1,2,0);
+		n.d = 4;
+		b.setNode(p, n);
+		assert(b.getNode(p).d == 4);
+		assert(b.getNodeMaterial(p) == 4);
+		assert(b.getNodeMaterial(v3s16(-1,-1,0)) == 5);
+		
+		/*
+			propagateSunlight()
+		*/
+		// Set lighting of all nodes to 0
+		for(u16 z=0; z<MAP_BLOCKSIZE; z++){
+			for(u16 y=0; y<MAP_BLOCKSIZE; y++){
+				for(u16 x=0; x<MAP_BLOCKSIZE; x++){
+					MapNode n = b.getNode(v3s16(x,y,z));
+					n.setLight(0);
+					b.setNode(v3s16(x,y,z), n);
+				}
+			}
+		}
+		{
+			/*
+				Check how the block handles being a lonely sky block
+			*/
+			parent.position_valid = true;
+			b.setIsUnderground(false);
+			parent.node.d = MATERIAL_AIR;
+			parent.node.setLight(LIGHT_SUN);
+			core::map<v3s16, bool> light_sources;
+			// The bottom block is invalid, because we have a shadowing node
+			assert(b.propagateSunlight(light_sources) == false);
+			assert(b.getNode(v3s16(1,4,0)).getLight() == LIGHT_SUN);
+			assert(b.getNode(v3s16(1,3,0)).getLight() == LIGHT_SUN);
+			assert(b.getNode(v3s16(1,2,0)).getLight() == 0);
+			assert(b.getNode(v3s16(1,1,0)).getLight() == 0);
+			assert(b.getNode(v3s16(1,0,0)).getLight() == 0);
+			assert(b.getNode(v3s16(1,2,3)).getLight() == LIGHT_SUN);
+			assert(b.getFaceLight(p, v3s16(0,1,0)) == LIGHT_SUN);
+			assert(b.getFaceLight(p, v3s16(0,-1,0)) == 0);
+			// According to MapBlock::getFaceLight,
+			// The face on the z+ side should have double-diminished light
+			assert(b.getFaceLight(p, v3s16(0,0,1)) == diminish_light(diminish_light(LIGHT_MAX)));
+		}
+		/*
+			Check how the block handles being in between blocks with some non-sunlight
+			while being underground
+		*/
+		{
+			// Make neighbours to exist and set some non-sunlight to them
+			parent.position_valid = true;
+			b.setIsUnderground(true);
+			parent.node.setLight(LIGHT_MAX/2);
+			core::map<v3s16, bool> light_sources;
+			// The block below should be valid because there shouldn't be
+			// sunlight in there either
+			assert(b.propagateSunlight(light_sources) == true);
+			// Should not touch nodes that are not affected (that is, all of them)
+			//assert(b.getNode(v3s16(1,2,3)).getLight() == LIGHT_SUN);
+			// Should set light of non-sunlighted blocks to 0.
+			assert(b.getNode(v3s16(1,2,3)).getLight() == 0);
+		}
+		/*
+			Set up a situation where:
+			- There is only air in this block
+			- There is a valid non-sunlighted block at the bottom, and
+			- Invalid blocks elsewhere.
+			- the block is not underground.
+
+			This should result in bottom block invalidity
+		*/
+		{
+			b.setIsUnderground(false);
+			// Clear block
+			for(u16 z=0; z<MAP_BLOCKSIZE; z++){
+				for(u16 y=0; y<MAP_BLOCKSIZE; y++){
+					for(u16 x=0; x<MAP_BLOCKSIZE; x++){
+						MapNode n;
+						n.d = MATERIAL_AIR;
+						n.setLight(0);
+						b.setNode(v3s16(x,y,z), n);
+					}
+				}
+			}
+			// Make neighbours invalid
+			parent.position_valid = false;
+			// Add exceptions to the top of the bottom block
+			for(u16 x=0; x<MAP_BLOCKSIZE; x++)
+			for(u16 z=0; z<MAP_BLOCKSIZE; z++)
+			{
+				parent.validity_exceptions.push_back(v3s16(MAP_BLOCKSIZE+x, MAP_BLOCKSIZE-1, MAP_BLOCKSIZE+z));
+			}
+			// Lighting value for the valid nodes
+			parent.node.setLight(LIGHT_MAX/2);
+			core::map<v3s16, bool> light_sources;
+			// Bottom block is not valid
+			assert(b.propagateSunlight(light_sources) == false);
+		}
+	}
+};
+
+struct TestMapSector
+{
+	class TC : public NodeContainer
+	{
+	public:
+
+		MapNode node;
+		bool position_valid;
+
+		TC()
+		{
+			position_valid = true;
+		}
+
+		virtual bool isValidPosition(v3s16 p)
+		{
+			return position_valid;
+		}
+
+		virtual MapNode getNode(v3s16 p)
+		{
+			if(position_valid == false)
+				throw InvalidPositionException();
+			return node;
+		}
+
+		virtual void setNode(v3s16 p, MapNode & n)
+		{
+			if(position_valid == false)
+				throw InvalidPositionException();
+		};
+		
+		virtual u16 nodeContainerId() const
+		{
+			return 666;
+		}
+	};
+	
+	void Run()
+	{
+		TC parent;
+		parent.position_valid = false;
+		
+		// Create one with no heightmaps
+		ServerMapSector sector(&parent, v2s16(1,1), 0);
+		//ConstantGenerator *dummyheightmap = new ConstantGenerator();
+		//sector->setHeightmap(dummyheightmap);
+		
+		EXCEPTION_CHECK(InvalidPositionException, sector.getBlockNoCreate(0));
+		EXCEPTION_CHECK(InvalidPositionException, sector.getBlockNoCreate(1));
+
+		MapBlock * bref = sector.createBlankBlock(-2);
+		
+		EXCEPTION_CHECK(InvalidPositionException, sector.getBlockNoCreate(0));
+		assert(sector.getBlockNoCreate(-2) == bref);
+		
+		//TODO: Check for AlreadyExistsException
+
+		/*bool exception_thrown = false;
+		try{
+			sector.getBlock(0);
+		}
+		catch(InvalidPositionException &e){
+			exception_thrown = true;
+		}
+		assert(exception_thrown);*/
+
+	}
+};
+
+struct TestHeightmap
+{
+	void TestSingleFixed()
+	{
+		const s16 BS1 = 4;
+		OneChildHeightmap hm1(BS1);
+		
+		// Test that it is filled with < GROUNDHEIGHT_VALID_MINVALUE
+		for(s16 y=0; y<=BS1; y++){
+			for(s16 x=0; x<=BS1; x++){
+				v2s16 p(x,y);
+				assert(hm1.m_child.getGroundHeight(p)
+					< GROUNDHEIGHT_VALID_MINVALUE);
+			}
+		}
+
+		hm1.m_child.setGroundHeight(v2s16(1,0), 2.0);
+		//hm1.m_child.print();
+		assert(fabs(hm1.getGroundHeight(v2s16(1,0))-2.0)<0.001);
+		hm1.setGroundHeight(v2s16(0,1), 3.0);
+		assert(fabs(hm1.m_child.getGroundHeight(v2s16(0,1))-3.0)<0.001);
+		
+		// Fill with -1.0
+		for(s16 y=0; y<=BS1; y++){
+			for(s16 x=0; x<=BS1; x++){
+				v2s16 p(x,y);
+				hm1.m_child.setGroundHeight(p, -1.0);
+			}
+		}
+
+		f32 corners[] = {0.0, 0.0, 1.0, 1.0};
+		hm1.m_child.generateContinued(0.0, 0.0, corners);
+		
+		hm1.m_child.print();
+		assert(fabs(hm1.m_child.getGroundHeight(v2s16(1,0))-0.2)<0.05);
+		assert(fabs(hm1.m_child.getGroundHeight(v2s16(4,3))-0.7)<0.05);
+		assert(fabs(hm1.m_child.getGroundHeight(v2s16(4,4))-1.0)<0.05);
+	}
+
+	void TestUnlimited()
+	{
+		//g_heightmap_debugprint = true;
+		const s16 BS1 = 4;
+		UnlimitedHeightmap hm1(BS1,
+				new ConstantGenerator(0.0),
+				new ConstantGenerator(0.0),
+				new ConstantGenerator(5.0));
+		// Go through it so it generates itself
+		for(s16 y=0; y<=BS1; y++){
+			for(s16 x=0; x<=BS1; x++){
+				v2s16 p(x,y);
+				hm1.getGroundHeight(p);
+			}
+		}
+		// Print it
+		dstream<<"UnlimitedHeightmap hm1:"<<std::endl;
+		hm1.print();
+		
+		dstream<<"testing UnlimitedHeightmap set/get"<<std::endl;
+		v2s16 p1(0,3);
+		f32 v1(234.01);
+		// Get first heightmap and try setGroundHeight
+		FixedHeightmap * href = hm1.getHeightmap(v2s16(0,0));
+		href->setGroundHeight(p1, v1);
+		// Read from UnlimitedHeightmap
+		assert(fabs(hm1.getGroundHeight(p1)-v1)<0.001);
+	}
+	
+	void Random()
+	{
+		dstream<<"Running random code (get a human to check this)"<<std::endl;
+		dstream<<"rand() values: ";
+		for(u16 i=0; i<5; i++)
+			dstream<<(u16)rand()<<" ";
+		dstream<<std::endl;
+
+		const s16 BS1 = 8;
+		UnlimitedHeightmap hm1(BS1,
+				new ConstantGenerator(10.0),
+				new ConstantGenerator(0.3),
+				new ConstantGenerator(0.0));
+
+		// Force hm1 to generate a some heightmap
+		hm1.getGroundHeight(v2s16(0,0));
+		hm1.getGroundHeight(v2s16(0,BS1));
+		/*hm1.getGroundHeight(v2s16(BS1,-1));
+		hm1.getGroundHeight(v2s16(BS1-1,-1));*/
+		hm1.print();
+
+		// Get the (0,0) and (1,0) heightmaps
+		/*FixedHeightmap * hr00 = hm1.getHeightmap(v2s16(0,0));
+		FixedHeightmap * hr01 = hm1.getHeightmap(v2s16(1,0));
+		f32 corners[] = {1.0, 1.0, 1.0, 1.0};
+		hr00->generateContinued(0.0, 0.0, corners);
+		hm1.print();*/
+
+		//assert(0);
+	}
+
+	void Run()
+	{
+		//srand(7); // Get constant random
+		srand(time(0)); // Get better random
+
+		TestSingleFixed();
+		TestUnlimited();
+		Random();
+	}
+};
+
+struct TestSocket
+{
+	void Run()
+	{
+		const int port = 30003;
+		UDPSocket socket;
+		socket.Bind(port);
+
+		const char sendbuffer[] = "hello world!";
+		socket.Send(Address(127,0,0,1,port), sendbuffer, sizeof(sendbuffer));
+
+		sleep_ms(50);
+
+		char rcvbuffer[256];
+		memset(rcvbuffer, 0, sizeof(rcvbuffer));
+		Address sender;
+		for(;;)
+		{
+			int bytes_read = socket.Receive(sender, rcvbuffer, sizeof(rcvbuffer));
+			if(bytes_read < 0)
+				break;
+		}
+		//FIXME: This fails on some systems
+		assert(strncmp(sendbuffer, rcvbuffer, sizeof(sendbuffer))==0);
+		assert(sender.getAddress() == Address(127,0,0,1, 0).getAddress());
+	}
+};
+
+struct TestConnection
+{
+	void TestHelpers()
+	{
+		/*
+			Test helper functions
+		*/
+
+		// Some constants for testing
+		u32 proto_id = 0x12345678;
+		u16 peer_id = 123;
+		u8 channel = 2;
+		SharedBuffer<u8> data1(1);
+		data1[0] = 100;
+		Address a(127,0,0,1, 10);
+		u16 seqnum = 34352;
+
+		con::BufferedPacket p1 = con::makePacket(a, data1,
+				proto_id, peer_id, channel);
+		/*
+			We should now have a packet with this data:
+			Header:
+				[0] u32 protocol_id
+				[4] u16 sender_peer_id
+				[6] u8 channel
+			Data:
+				[7] u8 data1[0]
+		*/
+		assert(readU32(&p1.data[0]) == proto_id);
+		assert(readU16(&p1.data[4]) == peer_id);
+		assert(readU8(&p1.data[6]) == channel);
+		assert(readU8(&p1.data[7]) == data1[0]);
+		
+		//dstream<<"initial data1[0]="<<((u32)data1[0]&0xff)<<std::endl;
+
+		SharedBuffer<u8> p2 = con::makeReliablePacket(data1, seqnum);
+
+		/*dstream<<"p2.getSize()="<<p2.getSize()<<", data1.getSize()="
+				<<data1.getSize()<<std::endl;
+		dstream<<"readU8(&p2[3])="<<readU8(&p2[3])
+				<<" p2[3]="<<((u32)p2[3]&0xff)<<std::endl;
+		dstream<<"data1[0]="<<((u32)data1[0]&0xff)<<std::endl;*/
+
+		assert(p2.getSize() == 3 + data1.getSize());
+		assert(readU8(&p2[0]) == TYPE_RELIABLE);
+		assert(readU16(&p2[1]) == seqnum);
+		assert(readU8(&p2[3]) == data1[0]);
+	}
+
+	struct Handler : public con::PeerHandler
+	{
+		Handler(const char *a_name)
+		{
+			count = 0;
+			last_id = 0;
+			name = a_name;
+		}
+		void peerAdded(con::Peer *peer)
+		{
+			dstream<<"Handler("<<name<<")::peerAdded(): "
+					"id="<<peer->id<<std::endl;
+			last_id = peer->id;
+			count++;
+		}
+		void deletingPeer(con::Peer *peer, bool timeout)
+		{
+			dstream<<"Handler("<<name<<")::deletingPeer(): "
+					"id="<<peer->id
+					<<", timeout="<<timeout<<std::endl;
+			last_id = peer->id;
+			count--;
+		}
+
+		s32 count;
+		u16 last_id;
+		const char *name;
+	};
+
+	void Run()
+	{
+		DSTACK("TestConnection::Run");
+
+		TestHelpers();
+
+		/*
+			Test some real connections
+		*/
+		u32 proto_id = 0xad26846a;
+
+		Handler hand_server("server");
+		Handler hand_client("client");
+		
+		dstream<<"** Creating server Connection"<<std::endl;
+		con::Connection server(proto_id, 512, 5.0, &hand_server);
+		server.Serve(30001);
+		
+		dstream<<"** Creating client Connection"<<std::endl;
+		con::Connection client(proto_id, 512, 5.0, &hand_client);
+
+		assert(hand_server.count == 0);
+		assert(hand_client.count == 0);
+		
+		sleep_ms(50);
+		
+		Address server_address(127,0,0,1, 30001);
+		dstream<<"** running client.Connect()"<<std::endl;
+		client.Connect(server_address);
+
+		sleep_ms(50);
+		
+		// Client should have added server now
+		assert(hand_client.count == 1);
+		assert(hand_client.last_id == 1);
+		// But server should not have added client
+		assert(hand_server.count == 0);
+
+		try
+		{
+			u16 peer_id;
+			u8 data[100];
+			dstream<<"** running server.Receive()"<<std::endl;
+			u32 size = server.Receive(peer_id, data, 100);
+			dstream<<"** Server received: peer_id="<<peer_id
+					<<", size="<<size
+					<<std::endl;
+		}
+		catch(con::NoIncomingDataException &e)
+		{
+			// No actual data received, but the client has
+			// probably been connected
+		}
+		
+		// Client should be the same
+		assert(hand_client.count == 1);
+		assert(hand_client.last_id == 1);
+		// Server should have the client
+		assert(hand_server.count == 1);
+		assert(hand_server.last_id == 2);
+		
+		//sleep_ms(50);
+
+		while(client.Connected() == false)
+		{
+			try
+			{
+				u16 peer_id;
+				u8 data[100];
+				dstream<<"** running client.Receive()"<<std::endl;
+				u32 size = client.Receive(peer_id, data, 100);
+				dstream<<"** Client received: peer_id="<<peer_id
+						<<", size="<<size
+						<<std::endl;
+			}
+			catch(con::NoIncomingDataException &e)
+			{
+			}
+			sleep_ms(50);
+		}
+
+		sleep_ms(50);
+		
+		try
+		{
+			u16 peer_id;
+			u8 data[100];
+			dstream<<"** running server.Receive()"<<std::endl;
+			u32 size = server.Receive(peer_id, data, 100);
+			dstream<<"** Server received: peer_id="<<peer_id
+					<<", size="<<size
+					<<std::endl;
+		}
+		catch(con::NoIncomingDataException &e)
+		{
+		}
+
+		{
+			/*u8 data[] = "Hello World!";
+			u32 datasize = sizeof(data);*/
+			SharedBuffer<u8> data = SharedBufferFromString("Hello World!");
+
+			dstream<<"** running client.Send()"<<std::endl;
+			client.Send(PEER_ID_SERVER, 0, data, true);
+
+			sleep_ms(50);
+
+			u16 peer_id;
+			u8 recvdata[100];
+			dstream<<"** running server.Receive()"<<std::endl;
+			u32 size = server.Receive(peer_id, recvdata, 100);
+			dstream<<"** Server received: peer_id="<<peer_id
+					<<", size="<<size
+					<<", data="<<*data
+					<<std::endl;
+			assert(memcmp(*data, recvdata, data.getSize()) == 0);
+		}
+		
+		u16 peer_id_client = 2;
+
+		{
+			/*
+				Send consequent packets in different order
+			*/
+			//u8 data1[] = "hello1";
+			//u8 data2[] = "hello2";
+			SharedBuffer<u8> data1 = SharedBufferFromString("hello1");
+			SharedBuffer<u8> data2 = SharedBufferFromString("Hello2");
+
+			Address client_address =
+					server.GetPeer(peer_id_client)->address;
+			
+			dstream<<"*** Sending packets in wrong order (2,1,2)"
+					<<std::endl;
+			
+			u8 chn = 0;
+			con::Channel *ch = &server.GetPeer(peer_id_client)->channels[chn];
+			u16 sn = ch->next_outgoing_seqnum;
+			ch->next_outgoing_seqnum = sn+1;
+			server.Send(peer_id_client, chn, data2, true);
+			ch->next_outgoing_seqnum = sn;
+			server.Send(peer_id_client, chn, data1, true);
+			ch->next_outgoing_seqnum = sn+1;
+			server.Send(peer_id_client, chn, data2, true);
+
+			sleep_ms(50);
+
+			dstream<<"*** Receiving the packets"<<std::endl;
+
+			u16 peer_id;
+			u8 recvdata[20];
+			u32 size;
+
+			dstream<<"** running client.Receive()"<<std::endl;
+			peer_id = 132;
+			size = client.Receive(peer_id, recvdata, 20);
+			dstream<<"** Client received: peer_id="<<peer_id
+					<<", size="<<size
+					<<", data="<<recvdata
+					<<std::endl;
+			assert(size == data1.getSize());
+			assert(memcmp(*data1, recvdata, data1.getSize()) == 0);
+			assert(peer_id == PEER_ID_SERVER);
+			
+			dstream<<"** running client.Receive()"<<std::endl;
+			peer_id = 132;
+			size = client.Receive(peer_id, recvdata, 20);
+			dstream<<"** Client received: peer_id="<<peer_id
+					<<", size="<<size
+					<<", data="<<recvdata
+					<<std::endl;
+			assert(size == data2.getSize());
+			assert(memcmp(*data2, recvdata, data2.getSize()) == 0);
+			assert(peer_id == PEER_ID_SERVER);
+			
+			bool got_exception = false;
+			try
+			{
+				dstream<<"** running client.Receive()"<<std::endl;
+				peer_id = 132;
+				size = client.Receive(peer_id, recvdata, 20);
+				dstream<<"** Client received: peer_id="<<peer_id
+						<<", size="<<size
+						<<", data="<<recvdata
+						<<std::endl;
+			}
+			catch(con::NoIncomingDataException &e)
+			{
+				dstream<<"** No incoming data for client"<<std::endl;
+				got_exception = true;
+			}
+			assert(got_exception);
+		}
+		{
+			//u8 data1[1100];
+			SharedBuffer<u8> data1(1100);
+			for(u16 i=0; i<1100; i++){
+				data1[i] = i/4;
+			}
+
+			dstream<<"Sending data (size="<<1100<<"):";
+			for(int i=0; i<1100 && i<20; i++){
+				if(i%2==0) printf(" ");
+				printf("%.2X", ((int)((const char*)*data1)[i])&0xff);
+			}
+			if(1100>20)
+				dstream<<"...";
+			dstream<<std::endl;
+			
+			server.Send(peer_id_client, 0, data1, true);
+
+			sleep_ms(50);
+			
+			u8 recvdata[2000];
+			dstream<<"** running client.Receive()"<<std::endl;
+			u16 peer_id = 132;
+			u16 size = client.Receive(peer_id, recvdata, 2000);
+			dstream<<"** Client received: peer_id="<<peer_id
+					<<", size="<<size
+					<<std::endl;
+
+			dstream<<"Received data (size="<<size<<"):";
+			for(int i=0; i<size && i<20; i++){
+				if(i%2==0) printf(" ");
+				printf("%.2X", ((int)((const char*)recvdata)[i])&0xff);
+			}
+			if(size>20)
+				dstream<<"...";
+			dstream<<std::endl;
+
+			assert(memcmp(*data1, recvdata, data1.getSize()) == 0);
+			assert(peer_id == PEER_ID_SERVER);
+		}
+		
+		// Check peer handlers
+		assert(hand_client.count == 1);
+		assert(hand_client.last_id == 1);
+		assert(hand_server.count == 1);
+		assert(hand_server.last_id == 2);
+		
+		//assert(0);
+	}
+};
+
+#define TEST(X)\
+{\
+	X x;\
+	dstream<<"Running " #X <<std::endl;\
+	x.Run();\
+}
+
+void run_tests()
+{
+	DSTACK(__FUNCTION_NAME);
+	dstream<<"run_tests() started"<<std::endl;
+	TEST(TestUtilities);
+	TEST(TestCompress);
+	TEST(TestMapNode);
+	TEST(TestMapBlock);
+	TEST(TestMapSector);
+	TEST(TestHeightmap);
+	if(INTERNET_SIMULATOR == false){
+		TEST(TestSocket);
+		dout_con<<"=== BEGIN RUNNING UNIT TESTS FOR CONNECTION ==="<<std::endl;
+		TEST(TestConnection);
+		dout_con<<"=== END RUNNING UNIT TESTS FOR CONNECTION ==="<<std::endl;
+	}
+	dstream<<"run_tests() passed"<<std::endl;
+}
+
-- 
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