src/test.cpp

   1 /*
   2 Minetest-c55
   3 Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "test.h"
  21 #include "common_irrlicht.h"
  22 #include "debug.h"
  23 #include "map.h"
  24 #include "player.h"
  25 #include "main.h"
  26 #include "socket.h"
  27 #include "connection.h"
  28 #include "utility.h"
  29 #include "serialization.h"
  30 #include "voxel.h"
  31 #include <sstream>
  32 #include "porting.h"
  33 #include "content_mapnode.h"
  34
  35 /*
  36         Asserts that the exception occurs
  37 */
  38 #define EXCEPTION_CHECK(EType, code)\
  39 {\
  40         bool exception_thrown = false;\
  41         try{ code; }\
  42         catch(EType &e) { exception_thrown = true; }\
  43         assert(exception_thrown);\
  44 }
  45
  46 struct TestUtilities
  47 {
  48         void Run()
  49         {
  50                 /*dstream<<"wrapDegrees(100.0) = "<<wrapDegrees(100.0)<<std::endl;
  51                 dstream<<"wrapDegrees(720.5) = "<<wrapDegrees(720.5)<<std::endl;
  52                 dstream<<"wrapDegrees(-0.5) = "<<wrapDegrees(-0.5)<<std::endl;*/
  53                 assert(fabs(wrapDegrees(100.0) - 100.0) < 0.001);
  54                 assert(fabs(wrapDegrees(720.5) - 0.5) < 0.001);
  55                 assert(fabs(wrapDegrees(-0.5) - (-0.5)) < 0.001);
  56                 assert(fabs(wrapDegrees(-365.5) - (-5.5)) < 0.001);
  57                 assert(lowercase("Foo bAR") == "foo bar");
  58                 assert(is_yes("YeS") == true);
  59                 assert(is_yes("") == false);
  60                 assert(is_yes("FAlse") == false);
  61         }
  62 };
  63
  64 struct TestCompress
  65 {
  66         void Run()
  67         {
  68                 { // ver 0
  69
  70                 SharedBuffer<u8> fromdata(4);
  71                 fromdata[0]=1;
  72                 fromdata[1]=5;
  73                 fromdata[2]=5;
  74                 fromdata[3]=1;
  75
  76                 std::ostringstream os(std::ios_base::binary);
  77                 compress(fromdata, os, 0);
  78
  79                 std::string str_out = os.str();
  80
  81                 dstream<<"str_out.size()="<<str_out.size()<<std::endl;
  82                 dstream<<"TestCompress: 1,5,5,1 -> ";
  83                 for(u32 i=0; i<str_out.size(); i++)
  84                 {
  85                         dstream<<(u32)str_out[i]<<",";
  86                 }
  87                 dstream<<std::endl;
  88
  89                 assert(str_out.size() == 10);
  90
  91                 assert(str_out[0] == 0);
  92                 assert(str_out[1] == 0);
  93                 assert(str_out[2] == 0);
  94                 assert(str_out[3] == 4);
  95                 assert(str_out[4] == 0);
  96                 assert(str_out[5] == 1);
  97                 assert(str_out[6] == 1);
  98                 assert(str_out[7] == 5);
  99                 assert(str_out[8] == 0);
 100                 assert(str_out[9] == 1);
 101
 102                 std::istringstream is(str_out, std::ios_base::binary);
 103                 std::ostringstream os2(std::ios_base::binary);
 104
 105                 decompress(is, os2, 0);
 106                 std::string str_out2 = os2.str();
 107
 108                 dstream<<"decompress: ";
 109                 for(u32 i=0; i<str_out2.size(); i++)
 110                 {
 111                         dstream<<(u32)str_out2[i]<<",";
 112                 }
 113                 dstream<<std::endl;
 114
 115                 assert(str_out2.size() == fromdata.getSize());
 116
 117                 for(u32 i=0; i<str_out2.size(); i++)
 118                 {
 119                         assert(str_out2[i] == fromdata[i]);
 120                 }
 121
 122                 }
 123
 124                 { // ver HIGHEST
 125
 126                 SharedBuffer<u8> fromdata(4);
 127                 fromdata[0]=1;
 128                 fromdata[1]=5;
 129                 fromdata[2]=5;
 130                 fromdata[3]=1;
 131
 132                 std::ostringstream os(std::ios_base::binary);
 133                 compress(fromdata, os, SER_FMT_VER_HIGHEST);
 134
 135                 std::string str_out = os.str();
 136
 137                 dstream<<"str_out.size()="<<str_out.size()<<std::endl;
 138                 dstream<<"TestCompress: 1,5,5,1 -> ";
 139                 for(u32 i=0; i<str_out.size(); i++)
 140                 {
 141                         dstream<<(u32)str_out[i]<<",";
 142                 }
 143                 dstream<<std::endl;
 144
 145                 /*assert(str_out.size() == 10);
 146
 147                 assert(str_out[0] == 0);
 148                 assert(str_out[1] == 0);
 149                 assert(str_out[2] == 0);
 150                 assert(str_out[3] == 4);
 151                 assert(str_out[4] == 0);
 152                 assert(str_out[5] == 1);
 153                 assert(str_out[6] == 1);
 154                 assert(str_out[7] == 5);
 155                 assert(str_out[8] == 0);
 156                 assert(str_out[9] == 1);*/
 157
 158                 std::istringstream is(str_out, std::ios_base::binary);
 159                 std::ostringstream os2(std::ios_base::binary);
 160
 161                 decompress(is, os2, SER_FMT_VER_HIGHEST);
 162                 std::string str_out2 = os2.str();
 163
 164                 dstream<<"decompress: ";
 165                 for(u32 i=0; i<str_out2.size(); i++)
 166                 {
 167                         dstream<<(u32)str_out2[i]<<",";
 168                 }
 169                 dstream<<std::endl;
 170
 171                 assert(str_out2.size() == fromdata.getSize());
 172
 173                 for(u32 i=0; i<str_out2.size(); i++)
 174                 {
 175                         assert(str_out2[i] == fromdata[i]);
 176                 }
 177
 178                 }
 179         }
 180 };
 181
 182 struct TestMapNode
 183 {
 184         void Run()
 185         {
 186                 MapNode n;
 187
 188                 // Default values
 189                 assert(n.d == CONTENT_AIR);
 190                 assert(n.getLight(LIGHTBANK_DAY) == 0);
 191                 assert(n.getLight(LIGHTBANK_NIGHT) == 0);
 192
 193                 // Transparency
 194                 n.d = CONTENT_AIR;
 195                 assert(n.light_propagates() == true);
 196                 n.d = CONTENT_STONE;
 197                 assert(n.light_propagates() == false);
 198         }
 199 };
 200
 201 struct TestVoxelManipulator
 202 {
 203         void Run()
 204         {
 205                 /*
 206                         VoxelArea
 207                 */
 208
 209                 VoxelArea a(v3s16(-1,-1,-1), v3s16(1,1,1));
 210                 assert(a.index(0,0,0) == 1*3*3 + 1*3 + 1);
 211                 assert(a.index(-1,-1,-1) == 0);
 212
 213                 VoxelArea c(v3s16(-2,-2,-2), v3s16(2,2,2));
 214                 // An area that is 1 bigger in x+ and z-
 215                 VoxelArea d(v3s16(-2,-2,-3), v3s16(3,2,2));
 216
 217                 core::list<VoxelArea> aa;
 218                 d.diff(c, aa);
 219
 220                 // Correct results
 221                 core::array<VoxelArea> results;
 222                 results.push_back(VoxelArea(v3s16(-2,-2,-3),v3s16(3,2,-3)));
 223                 results.push_back(VoxelArea(v3s16(3,-2,-2),v3s16(3,2,2)));
 224
 225                 assert(aa.size() == results.size());
 226
 227                 dstream<<"Result of diff:"<<std::endl;
 228                 for(core::list<VoxelArea>::Iterator
 229                                 i = aa.begin(); i != aa.end(); i++)
 230                 {
 231                         i->print(dstream);
 232                         dstream<<std::endl;
 233
 234                         s32 j = results.linear_search(*i);
 235                         assert(j != -1);
 236                         results.erase(j, 1);
 237                 }
 238
 239
 240                 /*
 241                         VoxelManipulator
 242                 */
 243
 244                 VoxelManipulator v;
 245
 246                 v.print(dstream);
 247
 248                 dstream<<"*** Setting (-1,0,-1)=2 ***"<<std::endl;
 249
 250                 v.setNodeNoRef(v3s16(-1,0,-1), MapNode(2));
 251
 252                 v.print(dstream);
 253
 254                 assert(v.getNode(v3s16(-1,0,-1)).d == 2);
 255
 256                 dstream<<"*** Reading from inexistent (0,0,-1) ***"<<std::endl;
 257
 258                 EXCEPTION_CHECK(InvalidPositionException, v.getNode(v3s16(0,0,-1)));
 259
 260                 v.print(dstream);
 261
 262                 dstream<<"*** Adding area ***"<<std::endl;
 263
 264                 v.addArea(a);
 265
 266                 v.print(dstream);
 267
 268                 assert(v.getNode(v3s16(-1,0,-1)).d == 2);
 269                 EXCEPTION_CHECK(InvalidPositionException, v.getNode(v3s16(0,1,1)));
 270
 271 #if 0
 272                 /*
 273                         Water stuff
 274                 */
 275
 276                 v.clear();
 277
 278                 const char *content =
 279                         "#...######  "
 280                         "#...##..##  "
 281                         "#........ .."
 282                         "############"
 283
 284                         "#...######  "
 285                         "#...##..##  "
 286                         "#........#  "
 287                         "############"
 288                 ;
 289
 290                 v3s16 size(12, 4, 2);
 291                 VoxelArea area(v3s16(0,0,0), size-v3s16(1,1,1));
 292
 293                 const char *p = content;
 294                 for(s16 z=0; z<size.Z; z++)
 295                 for(s16 y=size.Y-1; y>=0; y--)
 296                 for(s16 x=0; x<size.X; x++)
 297                 {
 298                         MapNode n;
 299                         //n.pressure = size.Y - y;
 300                         if(*p == '#')
 301                                 n.d = CONTENT_STONE;
 302                         else if(*p == '.')
 303                                 n.d = CONTENT_WATER;
 304                         else if(*p == ' ')
 305                                 n.d = CONTENT_AIR;
 306                         else
 307                                 assert(0);
 308                         v.setNode(v3s16(x,y,z), n);
 309                         p++;
 310                 }
 311
 312                 v.print(dstream, VOXELPRINT_WATERPRESSURE);
 313
 314                 core::map<v3s16, u8> active_nodes;
 315                 v.updateAreaWaterPressure(area, active_nodes);
 316
 317                 v.print(dstream, VOXELPRINT_WATERPRESSURE);
 318
 319                 //s16 highest_y = -32768;
 320                 /*
 321                         NOTE: These are commented out because this behaviour is changed
 322                               all the time
 323                 */
 324                 //assert(v.getWaterPressure(v3s16(7, 1, 1), highest_y, 0) == -1);
 325                 //assert(highest_y == 3);
 326                 /*assert(v.getWaterPressure(v3s16(7, 1, 1), highest_y, 0) == 3);
 327                 //assert(highest_y == 3);*/
 328
 329                 active_nodes.clear();
 330                 active_nodes[v3s16(9,1,0)] = 1;
 331                 //v.flowWater(active_nodes, 0, true, 1000);
 332                 v.flowWater(active_nodes, 0, false, 1000);
 333
 334                 dstream<<"Final result of flowWater:"<<std::endl;
 335                 v.print(dstream, VOXELPRINT_WATERPRESSURE);
 336 #endif
 337
 338                 //assert(0);
 339         }
 340 };
 341
 342 struct TestMapBlock
 343 {
 344         class TC : public NodeContainer
 345         {
 346         public:
 347
 348                 MapNode node;
 349                 bool position_valid;
 350                 core::list<v3s16> validity_exceptions;
 351
 352                 TC()
 353                 {
 354                         position_valid = true;
 355                 }
 356
 357                 virtual bool isValidPosition(v3s16 p)
 358                 {
 359                         //return position_valid ^ (p==position_valid_exception);
 360                         bool exception = false;
 361                         for(core::list<v3s16>::Iterator i=validity_exceptions.begin();
 362                                         i != validity_exceptions.end(); i++)
 363                         {
 364                                 if(p == *i)
 365                                 {
 366                                         exception = true;
 367                                         break;
 368                                 }
 369                         }
 370                         return exception ? !position_valid : position_valid;
 371                 }
 372
 373                 virtual MapNode getNode(v3s16 p)
 374                 {
 375                         if(isValidPosition(p) == false)
 376                                 throw InvalidPositionException();
 377                         return node;
 378                 }
 379
 380                 virtual void setNode(v3s16 p, MapNode & n)
 381                 {
 382                         if(isValidPosition(p) == false)
 383                                 throw InvalidPositionException();
 384                 };
 385
 386                 virtual u16 nodeContainerId() const
 387                 {
 388                         return 666;
 389                 }
 390         };
 391
 392         void Run()
 393         {
 394                 TC parent;
 395
 396                 MapBlock b(&parent, v3s16(1,1,1));
 397                 v3s16 relpos(MAP_BLOCKSIZE, MAP_BLOCKSIZE, MAP_BLOCKSIZE);
 398
 399                 assert(b.getPosRelative() == relpos);
 400
 401                 assert(b.getBox().MinEdge.X == MAP_BLOCKSIZE);
 402                 assert(b.getBox().MaxEdge.X == MAP_BLOCKSIZE*2-1);
 403                 assert(b.getBox().MinEdge.Y == MAP_BLOCKSIZE);
 404                 assert(b.getBox().MaxEdge.Y == MAP_BLOCKSIZE*2-1);
 405                 assert(b.getBox().MinEdge.Z == MAP_BLOCKSIZE);
 406                 assert(b.getBox().MaxEdge.Z == MAP_BLOCKSIZE*2-1);
 407
 408                 assert(b.isValidPosition(v3s16(0,0,0)) == true);
 409                 assert(b.isValidPosition(v3s16(-1,0,0)) == false);
 410                 assert(b.isValidPosition(v3s16(-1,-142,-2341)) == false);
 411                 assert(b.isValidPosition(v3s16(-124,142,2341)) == false);
 412                 assert(b.isValidPosition(v3s16(MAP_BLOCKSIZE-1,MAP_BLOCKSIZE-1,MAP_BLOCKSIZE-1)) == true);
 413                 assert(b.isValidPosition(v3s16(MAP_BLOCKSIZE-1,MAP_BLOCKSIZE,MAP_BLOCKSIZE-1)) == false);
 414
 415                 /*
 416                         TODO: this method should probably be removed
 417                         if the block size isn't going to be set variable
 418                 */
 419                 /*assert(b.getSizeNodes() == v3s16(MAP_BLOCKSIZE,
 420                                 MAP_BLOCKSIZE, MAP_BLOCKSIZE));*/
 421
 422                 // Changed flag should be initially set
 423                 assert(b.getChangedFlag() == true);
 424                 b.resetChangedFlag();
 425                 assert(b.getChangedFlag() == false);
 426
 427                 // All nodes should have been set to
 428                 // .d=CONTENT_AIR and .getLight() = 0
 429                 for(u16 z=0; z<MAP_BLOCKSIZE; z++)
 430                 for(u16 y=0; y<MAP_BLOCKSIZE; y++)
 431                 for(u16 x=0; x<MAP_BLOCKSIZE; x++)
 432                 {
 433                         assert(b.getNode(v3s16(x,y,z)).d == CONTENT_AIR);
 434                         assert(b.getNode(v3s16(x,y,z)).getLight(LIGHTBANK_DAY) == 0);
 435                         assert(b.getNode(v3s16(x,y,z)).getLight(LIGHTBANK_NIGHT) == 0);
 436                 }
 437
 438                 /*
 439                         Parent fetch functions
 440                 */
 441                 parent.position_valid = false;
 442                 parent.node.d = 5;
 443
 444                 MapNode n;
 445
 446                 // Positions in the block should still be valid
 447                 assert(b.isValidPositionParent(v3s16(0,0,0)) == true);
 448                 assert(b.isValidPositionParent(v3s16(MAP_BLOCKSIZE-1,MAP_BLOCKSIZE-1,MAP_BLOCKSIZE-1)) == true);
 449                 n = b.getNodeParent(v3s16(0,MAP_BLOCKSIZE-1,0));
 450                 assert(n.d == CONTENT_AIR);
 451
 452                 // ...but outside the block they should be invalid
 453                 assert(b.isValidPositionParent(v3s16(-121,2341,0)) == false);
 454                 assert(b.isValidPositionParent(v3s16(-1,0,0)) == false);
 455                 assert(b.isValidPositionParent(v3s16(MAP_BLOCKSIZE-1,MAP_BLOCKSIZE-1,MAP_BLOCKSIZE)) == false);
 456
 457                 {
 458                         bool exception_thrown = false;
 459                         try{
 460                                 // This should throw an exception
 461                                 MapNode n = b.getNodeParent(v3s16(0,0,-1));
 462                         }
 463                         catch(InvalidPositionException &e)
 464                         {
 465                                 exception_thrown = true;
 466                         }
 467                         assert(exception_thrown);
 468                 }
 469
 470                 parent.position_valid = true;
 471                 // Now the positions outside should be valid
 472                 assert(b.isValidPositionParent(v3s16(-121,2341,0)) == true);
 473                 assert(b.isValidPositionParent(v3s16(-1,0,0)) == true);
 474                 assert(b.isValidPositionParent(v3s16(MAP_BLOCKSIZE-1,MAP_BLOCKSIZE-1,MAP_BLOCKSIZE)) == true);
 475                 n = b.getNodeParent(v3s16(0,0,MAP_BLOCKSIZE));
 476                 assert(n.d == 5);
 477
 478                 /*
 479                         Set a node
 480                 */
 481                 v3s16 p(1,2,0);
 482                 n.d = 4;
 483                 b.setNode(p, n);
 484                 assert(b.getNode(p).d == 4);
 485                 //TODO: Update to new system
 486                 /*assert(b.getNodeTile(p) == 4);
 487                 assert(b.getNodeTile(v3s16(-1,-1,0)) == 5);*/
 488
 489                 /*
 490                         propagateSunlight()
 491                 */
 492                 // Set lighting of all nodes to 0
 493                 for(u16 z=0; z<MAP_BLOCKSIZE; z++){
 494                         for(u16 y=0; y<MAP_BLOCKSIZE; y++){
 495                                 for(u16 x=0; x<MAP_BLOCKSIZE; x++){
 496                                         MapNode n = b.getNode(v3s16(x,y,z));
 497                                         n.setLight(LIGHTBANK_DAY, 0);
 498                                         n.setLight(LIGHTBANK_NIGHT, 0);
 499                                         b.setNode(v3s16(x,y,z), n);
 500                                 }
 501                         }
 502                 }
 503                 {
 504                         /*
 505                                 Check how the block handles being a lonely sky block
 506                         */
 507                         parent.position_valid = true;
 508                         b.setIsUnderground(false);
 509                         parent.node.d = CONTENT_AIR;
 510                         parent.node.setLight(LIGHTBANK_DAY, LIGHT_SUN);
 511                         parent.node.setLight(LIGHTBANK_NIGHT, 0);
 512                         core::map<v3s16, bool> light_sources;
 513                         // The bottom block is invalid, because we have a shadowing node
 514                         assert(b.propagateSunlight(light_sources) == false);
 515                         assert(b.getNode(v3s16(1,4,0)).getLight(LIGHTBANK_DAY) == LIGHT_SUN);
 516                         assert(b.getNode(v3s16(1,3,0)).getLight(LIGHTBANK_DAY) == LIGHT_SUN);
 517                         assert(b.getNode(v3s16(1,2,0)).getLight(LIGHTBANK_DAY) == 0);
 518                         assert(b.getNode(v3s16(1,1,0)).getLight(LIGHTBANK_DAY) == 0);
 519                         assert(b.getNode(v3s16(1,0,0)).getLight(LIGHTBANK_DAY) == 0);
 520                         assert(b.getNode(v3s16(1,2,3)).getLight(LIGHTBANK_DAY) == LIGHT_SUN);
 521                         assert(b.getFaceLight2(1000, p, v3s16(0,1,0)) == LIGHT_SUN);
 522                         assert(b.getFaceLight2(1000, p, v3s16(0,-1,0)) == 0);
 523                         assert(b.getFaceLight2(0, p, v3s16(0,-1,0)) == 0);
 524                         // According to MapBlock::getFaceLight,
 525                         // The face on the z+ side should have double-diminished light
 526                         //assert(b.getFaceLight(p, v3s16(0,0,1)) == diminish_light(diminish_light(LIGHT_MAX)));
 527                         // The face on the z+ side should have diminished light
 528                         assert(b.getFaceLight2(1000, p, v3s16(0,0,1)) == diminish_light(LIGHT_MAX));
 529                 }
 530                 /*
 531                         Check how the block handles being in between blocks with some non-sunlight
 532                         while being underground
 533                 */
 534                 {
 535                         // Make neighbours to exist and set some non-sunlight to them
 536                         parent.position_valid = true;
 537                         b.setIsUnderground(true);
 538                         parent.node.setLight(LIGHTBANK_DAY, LIGHT_MAX/2);
 539                         core::map<v3s16, bool> light_sources;
 540                         // The block below should be valid because there shouldn't be
 541                         // sunlight in there either
 542                         assert(b.propagateSunlight(light_sources, true) == true);
 543                         // Should not touch nodes that are not affected (that is, all of them)
 544                         //assert(b.getNode(v3s16(1,2,3)).getLight() == LIGHT_SUN);
 545                         // Should set light of non-sunlighted blocks to 0.
 546                         assert(b.getNode(v3s16(1,2,3)).getLight(LIGHTBANK_DAY) == 0);
 547                 }
 548                 /*
 549                         Set up a situation where:
 550                         - There is only air in this block
 551                         - There is a valid non-sunlighted block at the bottom, and
 552                         - Invalid blocks elsewhere.
 553                         - the block is not underground.
 554
 555                         This should result in bottom block invalidity
 556                 */
 557                 {
 558                         b.setIsUnderground(false);
 559                         // Clear block
 560                         for(u16 z=0; z<MAP_BLOCKSIZE; z++){
 561                                 for(u16 y=0; y<MAP_BLOCKSIZE; y++){
 562                                         for(u16 x=0; x<MAP_BLOCKSIZE; x++){
 563                                                 MapNode n;
 564                                                 n.d = CONTENT_AIR;
 565                                                 n.setLight(LIGHTBANK_DAY, 0);
 566                                                 b.setNode(v3s16(x,y,z), n);
 567                                         }
 568                                 }
 569                         }
 570                         // Make neighbours invalid
 571                         parent.position_valid = false;
 572                         // Add exceptions to the top of the bottom block
 573                         for(u16 x=0; x<MAP_BLOCKSIZE; x++)
 574                         for(u16 z=0; z<MAP_BLOCKSIZE; z++)
 575                         {
 576                                 parent.validity_exceptions.push_back(v3s16(MAP_BLOCKSIZE+x, MAP_BLOCKSIZE-1, MAP_BLOCKSIZE+z));
 577                         }
 578                         // Lighting value for the valid nodes
 579                         parent.node.setLight(LIGHTBANK_DAY, LIGHT_MAX/2);
 580                         core::map<v3s16, bool> light_sources;
 581                         // Bottom block is not valid
 582                         assert(b.propagateSunlight(light_sources) == false);
 583                 }
 584         }
 585 };
 586
 587 struct TestMapSector
 588 {
 589         class TC : public NodeContainer
 590         {
 591         public:
 592
 593                 MapNode node;
 594                 bool position_valid;
 595
 596                 TC()
 597                 {
 598                         position_valid = true;
 599                 }
 600
 601                 virtual bool isValidPosition(v3s16 p)
 602                 {
 603                         return position_valid;
 604                 }
 605
 606                 virtual MapNode getNode(v3s16 p)
 607                 {
 608                         if(position_valid == false)
 609                                 throw InvalidPositionException();
 610                         return node;
 611                 }
 612
 613                 virtual void setNode(v3s16 p, MapNode & n)
 614                 {
 615                         if(position_valid == false)
 616                                 throw InvalidPositionException();
 617                 };
 618
 619                 virtual u16 nodeContainerId() const
 620                 {
 621                         return 666;
 622                 }
 623         };
 624
 625         void Run()
 626         {
 627                 TC parent;
 628                 parent.position_valid = false;
 629
 630                 // Create one with no heightmaps
 631                 ServerMapSector sector(&parent, v2s16(1,1));
 632
 633                 EXCEPTION_CHECK(InvalidPositionException, sector.getBlockNoCreate(0));
 634                 EXCEPTION_CHECK(InvalidPositionException, sector.getBlockNoCreate(1));
 635
 636                 MapBlock * bref = sector.createBlankBlock(-2);
 637
 638                 EXCEPTION_CHECK(InvalidPositionException, sector.getBlockNoCreate(0));
 639                 assert(sector.getBlockNoCreate(-2) == bref);
 640
 641                 //TODO: Check for AlreadyExistsException
 642
 643                 /*bool exception_thrown = false;
 644                 try{
 645                         sector.getBlock(0);
 646                 }
 647                 catch(InvalidPositionException &e){
 648                         exception_thrown = true;
 649                 }
 650                 assert(exception_thrown);*/
 651
 652         }
 653 };
 654
 655 struct TestSocket
 656 {
 657         void Run()
 658         {
 659                 const int port = 30003;
 660                 UDPSocket socket;
 661                 socket.Bind(port);
 662
 663                 const char sendbuffer[] = "hello world!";
 664                 socket.Send(Address(127,0,0,1,port), sendbuffer, sizeof(sendbuffer));
 665
 666                 sleep_ms(50);
 667
 668                 char rcvbuffer[256];
 669                 memset(rcvbuffer, 0, sizeof(rcvbuffer));
 670                 Address sender;
 671                 for(;;)
 672                 {
 673                         int bytes_read = socket.Receive(sender, rcvbuffer, sizeof(rcvbuffer));
 674                         if(bytes_read < 0)
 675                                 break;
 676                 }
 677                 //FIXME: This fails on some systems
 678                 assert(strncmp(sendbuffer, rcvbuffer, sizeof(sendbuffer))==0);
 679                 assert(sender.getAddress() == Address(127,0,0,1, 0).getAddress());
 680         }
 681 };
 682
 683 struct TestConnection
 684 {
 685         void TestHelpers()
 686         {
 687                 /*
 688                         Test helper functions
 689                 */
 690
 691                 // Some constants for testing
 692                 u32 proto_id = 0x12345678;
 693                 u16 peer_id = 123;
 694                 u8 channel = 2;
 695                 SharedBuffer<u8> data1(1);
 696                 data1[0] = 100;
 697                 Address a(127,0,0,1, 10);
 698                 u16 seqnum = 34352;
 699
 700                 con::BufferedPacket p1 = con::makePacket(a, data1,
 701                                 proto_id, peer_id, channel);
 702                 /*
 703                         We should now have a packet with this data:
 704                         Header:
 705                                 [0] u32 protocol_id
 706                                 [4] u16 sender_peer_id
 707                                 [6] u8 channel
 708                         Data:
 709                                 [7] u8 data1[0]
 710                 */
 711                 assert(readU32(&p1.data[0]) == proto_id);
 712                 assert(readU16(&p1.data[4]) == peer_id);
 713                 assert(readU8(&p1.data[6]) == channel);
 714                 assert(readU8(&p1.data[7]) == data1[0]);
 715
 716                 //dstream<<"initial data1[0]="<<((u32)data1[0]&0xff)<<std::endl;
 717
 718                 SharedBuffer<u8> p2 = con::makeReliablePacket(data1, seqnum);
 719
 720                 /*dstream<<"p2.getSize()="<<p2.getSize()<<", data1.getSize()="
 721                                 <<data1.getSize()<<std::endl;
 722                 dstream<<"readU8(&p2[3])="<<readU8(&p2[3])
 723                                 <<" p2[3]="<<((u32)p2[3]&0xff)<<std::endl;
 724                 dstream<<"data1[0]="<<((u32)data1[0]&0xff)<<std::endl;*/
 725
 726                 assert(p2.getSize() == 3 + data1.getSize());
 727                 assert(readU8(&p2[0]) == TYPE_RELIABLE);
 728                 assert(readU16(&p2[1]) == seqnum);
 729                 assert(readU8(&p2[3]) == data1[0]);
 730         }
 731
 732         struct Handler : public con::PeerHandler
 733         {
 734                 Handler(const char *a_name)
 735                 {
 736                         count = 0;
 737                         last_id = 0;
 738                         name = a_name;
 739                 }
 740                 void peerAdded(con::Peer *peer)
 741                 {
 742                         dstream<<"Handler("<<name<<")::peerAdded(): "
 743                                         "id="<<peer->id<<std::endl;
 744                         last_id = peer->id;
 745                         count++;
 746                 }
 747                 void deletingPeer(con::Peer *peer, bool timeout)
 748                 {
 749                         dstream<<"Handler("<<name<<")::deletingPeer(): "
 750                                         "id="<<peer->id
 751                                         <<", timeout="<<timeout<<std::endl;
 752                         last_id = peer->id;
 753                         count--;
 754                 }
 755
 756                 s32 count;
 757                 u16 last_id;
 758                 const char *name;
 759         };
 760
 761         void Run()
 762         {
 763                 DSTACK("TestConnection::Run");
 764
 765                 TestHelpers();
 766
 767                 /*
 768                         Test some real connections
 769                 */
 770                 u32 proto_id = 0xad26846a;
 771
 772                 Handler hand_server("server");
 773                 Handler hand_client("client");
 774
 775                 dstream<<"** Creating server Connection"<<std::endl;
 776                 con::Connection server(proto_id, 512, 5.0, &hand_server);
 777                 server.Serve(30001);
 778
 779                 dstream<<"** Creating client Connection"<<std::endl;
 780                 con::Connection client(proto_id, 512, 5.0, &hand_client);
 781
 782                 assert(hand_server.count == 0);
 783                 assert(hand_client.count == 0);
 784
 785                 sleep_ms(50);
 786
 787                 Address server_address(127,0,0,1, 30001);
 788                 dstream<<"** running client.Connect()"<<std::endl;
 789                 client.Connect(server_address);
 790
 791                 sleep_ms(50);
 792
 793                 // Client should have added server now
 794                 assert(hand_client.count == 1);
 795                 assert(hand_client.last_id == 1);
 796                 // But server should not have added client
 797                 assert(hand_server.count == 0);
 798
 799                 try
 800                 {
 801                         u16 peer_id;
 802                         u8 data[100];
 803                         dstream<<"** running server.Receive()"<<std::endl;
 804                         u32 size = server.Receive(peer_id, data, 100);
 805                         dstream<<"** Server received: peer_id="<<peer_id
 806                                         <<", size="<<size
 807                                         <<std::endl;
 808                 }
 809                 catch(con::NoIncomingDataException &e)
 810                 {
 811                         // No actual data received, but the client has
 812                         // probably been connected
 813                 }
 814
 815                 // Client should be the same
 816                 assert(hand_client.count == 1);
 817                 assert(hand_client.last_id == 1);
 818                 // Server should have the client
 819                 assert(hand_server.count == 1);
 820                 assert(hand_server.last_id == 2);
 821
 822                 //sleep_ms(50);
 823
 824                 while(client.Connected() == false)
 825                 {
 826                         try
 827                         {
 828                                 u16 peer_id;
 829                                 u8 data[100];
 830                                 dstream<<"** running client.Receive()"<<std::endl;
 831                                 u32 size = client.Receive(peer_id, data, 100);
 832                                 dstream<<"** Client received: peer_id="<<peer_id
 833                                                 <<", size="<<size
 834                                                 <<std::endl;
 835                         }
 836                         catch(con::NoIncomingDataException &e)
 837                         {
 838                         }
 839                         sleep_ms(50);
 840                 }
 841
 842                 sleep_ms(50);
 843
 844                 try
 845                 {
 846                         u16 peer_id;
 847                         u8 data[100];
 848                         dstream<<"** running server.Receive()"<<std::endl;
 849                         u32 size = server.Receive(peer_id, data, 100);
 850                         dstream<<"** Server received: peer_id="<<peer_id
 851                                         <<", size="<<size
 852                                         <<std::endl;
 853                 }
 854                 catch(con::NoIncomingDataException &e)
 855                 {
 856                 }
 857
 858                 {
 859                         /*u8 data[] = "Hello World!";
 860                         u32 datasize = sizeof(data);*/
 861                         SharedBuffer<u8> data = SharedBufferFromString("Hello World!");
 862
 863                         dstream<<"** running client.Send()"<<std::endl;
 864                         client.Send(PEER_ID_SERVER, 0, data, true);
 865
 866                         sleep_ms(50);
 867
 868                         u16 peer_id;
 869                         u8 recvdata[100];
 870                         dstream<<"** running server.Receive()"<<std::endl;
 871                         u32 size = server.Receive(peer_id, recvdata, 100);
 872                         dstream<<"** Server received: peer_id="<<peer_id
 873                                         <<", size="<<size
 874                                         <<", data="<<*data
 875                                         <<std::endl;
 876                         assert(memcmp(*data, recvdata, data.getSize()) == 0);
 877                 }
 878
 879                 u16 peer_id_client = 2;
 880
 881                 {
 882                         /*
 883                                 Send consequent packets in different order
 884                         */
 885                         //u8 data1[] = "hello1";
 886                         //u8 data2[] = "hello2";
 887                         SharedBuffer<u8> data1 = SharedBufferFromString("hello1");
 888                         SharedBuffer<u8> data2 = SharedBufferFromString("Hello2");
 889
 890                         Address client_address =
 891                                         server.GetPeer(peer_id_client)->address;
 892
 893                         dstream<<"*** Sending packets in wrong order (2,1,2)"
 894                                         <<std::endl;
 895
 896                         u8 chn = 0;
 897                         con::Channel *ch = &server.GetPeer(peer_id_client)->channels[chn];
 898                         u16 sn = ch->next_outgoing_seqnum;
 899                         ch->next_outgoing_seqnum = sn+1;
 900                         server.Send(peer_id_client, chn, data2, true);
 901                         ch->next_outgoing_seqnum = sn;
 902                         server.Send(peer_id_client, chn, data1, true);
 903                         ch->next_outgoing_seqnum = sn+1;
 904                         server.Send(peer_id_client, chn, data2, true);
 905
 906                         sleep_ms(50);
 907
 908                         dstream<<"*** Receiving the packets"<<std::endl;
 909
 910                         u16 peer_id;
 911                         u8 recvdata[20];
 912                         u32 size;
 913
 914                         dstream<<"** running client.Receive()"<<std::endl;
 915                         peer_id = 132;
 916                         size = client.Receive(peer_id, recvdata, 20);
 917                         dstream<<"** Client received: peer_id="<<peer_id
 918                                         <<", size="<<size
 919                                         <<", data="<<recvdata
 920                                         <<std::endl;
 921                         assert(size == data1.getSize());
 922                         assert(memcmp(*data1, recvdata, data1.getSize()) == 0);
 923                         assert(peer_id == PEER_ID_SERVER);
 924
 925                         dstream<<"** running client.Receive()"<<std::endl;
 926                         peer_id = 132;
 927                         size = client.Receive(peer_id, recvdata, 20);
 928                         dstream<<"** Client received: peer_id="<<peer_id
 929                                         <<", size="<<size
 930                                         <<", data="<<recvdata
 931                                         <<std::endl;
 932                         assert(size == data2.getSize());
 933                         assert(memcmp(*data2, recvdata, data2.getSize()) == 0);
 934                         assert(peer_id == PEER_ID_SERVER);
 935
 936                         bool got_exception = false;
 937                         try
 938                         {
 939                                 dstream<<"** running client.Receive()"<<std::endl;
 940                                 peer_id = 132;
 941                                 size = client.Receive(peer_id, recvdata, 20);
 942                                 dstream<<"** Client received: peer_id="<<peer_id
 943                                                 <<", size="<<size
 944                                                 <<", data="<<recvdata
 945                                                 <<std::endl;
 946                         }
 947                         catch(con::NoIncomingDataException &e)
 948                         {
 949                                 dstream<<"** No incoming data for client"<<std::endl;
 950                                 got_exception = true;
 951                         }
 952                         assert(got_exception);
 953                 }
 954                 {
 955                         const int datasize = 30000;
 956                         SharedBuffer<u8> data1(datasize);
 957                         for(u16 i=0; i<datasize; i++){
 958                                 data1[i] = i/4;
 959                         }
 960
 961                         dstream<<"Sending data (size="<<datasize<<"):";
 962                         for(int i=0; i<datasize && i<20; i++){
 963                                 if(i%2==0) DEBUGPRINT(" ");
 964                                 DEBUGPRINT("%.2X", ((int)((const char*)*data1)[i])&0xff);
 965                         }
 966                         if(datasize>20)
 967                                 dstream<<"...";
 968                         dstream<<std::endl;
 969
 970                         server.Send(peer_id_client, 0, data1, true);
 971
 972                         sleep_ms(50);
 973
 974                         u8 recvdata[datasize + 1000];
 975                         dstream<<"** running client.Receive()"<<std::endl;
 976                         u16 peer_id = 132;
 977                         u16 size = client.Receive(peer_id, recvdata, datasize + 1000);
 978                         dstream<<"** Client received: peer_id="<<peer_id
 979                                         <<", size="<<size
 980                                         <<std::endl;
 981
 982                         dstream<<"Received data (size="<<size<<"):";
 983                         for(int i=0; i<size && i<20; i++){
 984                                 if(i%2==0) DEBUGPRINT(" ");
 985                                 DEBUGPRINT("%.2X", ((int)((const char*)recvdata)[i])&0xff);
 986                         }
 987                         if(size>20)
 988                                 dstream<<"...";
 989                         dstream<<std::endl;
 990
 991                         assert(memcmp(*data1, recvdata, data1.getSize()) == 0);
 992                         assert(peer_id == PEER_ID_SERVER);
 993                 }
 994
 995                 // Check peer handlers
 996                 assert(hand_client.count == 1);
 997                 assert(hand_client.last_id == 1);
 998                 assert(hand_server.count == 1);
 999                 assert(hand_server.last_id == 2);
1000
1001                 //assert(0);
1002         }
1003 };
1004
1005 #define TEST(X)\
1006 {\
1007         X x;\
1008         dstream<<"Running " #X <<std::endl;\
1009         x.Run();\
1010 }
1011
1012 void run_tests()
1013 {
1014         DSTACK(__FUNCTION_NAME);
1015         dstream<<"run_tests() started"<<std::endl;
1016         TEST(TestUtilities);
1017         TEST(TestCompress);
1018         TEST(TestMapNode);
1019         TEST(TestVoxelManipulator);
1020         TEST(TestMapBlock);
1021         TEST(TestMapSector);
1022         if(INTERNET_SIMULATOR == false){
1023                 TEST(TestSocket);
1024                 dout_con<<"=== BEGIN RUNNING UNIT TESTS FOR CONNECTION ==="<<std::endl;
1025                 TEST(TestConnection);
1026                 dout_con<<"=== END RUNNING UNIT TESTS FOR CONNECTION ==="<<std::endl;
1027         }
1028         dstream<<"run_tests() passed"<<std::endl;
1029 }
1030