aboutsummaryrefslogblamecommitdiffstats
path: root/lib/common_test/src/ct_run.erl
blob: 021bda295107b745a1154779a1601c7c605d74cc (plain) (tree)
1
2
3
4
5
6
7
8
9
10
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531

                   


                                                        




                                                                      
  



                                                                         
  


































                                                                     
                                                        


















































                                                                                              





































































































                                                                                          
                                                             
                              
                         









                                                                         

                                                              

                                                                          
                                         
                                                                         





                                                                               
                                                                 
                                                                              




                              
                                                             
                                                 


                                                      
                                       
                                             
                                               
                                        
                                         

                                                

























                                                                              

                                                                            













































































































                                                                                
                                                           















                                                                                 
                                                                           


























































                                                                            
                                                    






































































                                                                                         
                                                    







































































































































                                                                                        
                                                                            











                                                                       
                                                                       





                                                   





                                          
                                          
                                                      
                                 
                                            

        

                                                           













                                                            
                                                     


                               























































































                                                                                                            
                                                                             











                                                                      
                                               









                                                    

                                                                    



















































































































































































































































































































































































































































































































































































































































































































                                                                                            
                                                                      



                                                                         

                                                                              














































































































































































































































                                                                                          









                                                                   
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2004-2010. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
%%
%% %CopyrightEnd%
%%

%%% @doc Common Test Framework test execution control module.
%%%
%%% <p>This module exports functions for installing and running tests
%%% withing the Common Test Framework.</p>

-module(ct_run).


%% Script interface
-export([script_start/0,script_usage/0]).

%% User interface
-export([install/1,install/2,run/1,run/2,run/3,run_test/1,
	 run_testspec/1,step/3,step/4,refresh_logs/1]).


%% Exported for VTS
-export([run_make/3,do_run/3,tests/1,tests/2,tests/3]).


%% Misc internal functions
-export([variables_file_name/1,script_start1/2,run_test1/1]).

-include("ct_event.hrl").
-include("ct_util.hrl").

-define(abs(Name), filename:absname(Name)).
-define(testdir(Name, Suite), ct_util:get_testdir(Name, Suite)).

%%%-----------------------------------------------------------------
%%% @spec script_start() -> void()
%%%
%%% @doc Start tests via the run_test program or script.
%%% 
%%% <p>Example:<br/><code>./run_test -config config.ctc -dir
%%% $TEST_DIR</code></p>
%%%
%%% <p>Example:<br/><code>./run_test -config config.ctc -suite
%%% $SUITE_PATH/$SUITE_NAME [-case $CASE_NAME]</code></p>
%%%
script_start() ->
    process_flag(trap_exit, true),
    Args = merge_arguments(init:get_arguments()),
    Tracing = start_trace(Args),
    Res = 
	case ct_repeat:loop_test(script, Args) of
	    false ->	    
		{ok,Cwd} = file:get_cwd(),
		CTVsn = 
		    case filename:basename(code:lib_dir(common_test)) of
			CTBase when is_list(CTBase) ->
			    case string:tokens(CTBase, "-") of
				["common_test",Vsn] -> " v"++Vsn;
				_ -> ""
			    end
		    end,
		io:format("~nCommon Test~s starting (cwd is ~s)~n~n", [CTVsn,Cwd]),
		Self = self(),
		Pid = spawn_link(fun() -> script_start1(Self, Args) end),
	        receive 
		    {'EXIT',Pid,Reason} ->
			case Reason of
			    {user_error,What} ->
				io:format("\nTest run failed!\nReason: ~p\n\n", [What]),
				{error,What};
			    _ ->
				io:format("Test run crashed! This could be an internal error "
					  "- please report!\n\n"
					  "~p\n\n", [Reason]),
				{error,Reason}				
			end;
		    {Pid,{error,Reason}} ->
			io:format("\nTest run failed! Reason:\n~p\n\n",[Reason]),
			{error,Reason};
		    {Pid,Result} ->
			Result
		end;
	    Result ->
		Result
	end,
    stop_trace(Tracing),
    Res.

script_start1(Parent, Args) ->
    VtsOrShell = 
	case lists:keymember(vts, 1, Args) of
	    true -> 
		vts;
	    false ->
		case lists:keymember(shell, 1, Args) of
		    true -> shell;
		    false -> false
		end
	end,
    LogDir =
	case lists:keysearch(logdir, 1, Args) of
	    {value,{logdir,[LogD]}} -> LogD;
	    false -> "."
	end,
    EvHandlers =	
	case lists:keysearch(event_handler, 1, Args) of
	    {value,{event_handler,Handlers}} -> 
		lists:map(fun(H) -> {list_to_atom(H),[]} end, Handlers);
	    false -> 
		[]
	end,
    Cover = 
	case lists:keysearch(cover, 1, Args) of
	    {value,{cover,CoverFile}} -> 
		{cover,?abs(CoverFile)};
	    false -> 
		false
	end,

    case lists:keysearch(ct_decrypt_key, 1, Args) of
	{value,{_,[DecryptKey]}} ->
	    application:set_env(common_test, decrypt, {key,DecryptKey});
	false ->
	    case lists:keysearch(ct_decrypt_file, 1, Args) of
		{value,{_,[DecryptFile]}} ->
		    application:set_env(common_test, decrypt, 
					{file,filename:absname(DecryptFile)});
		false ->
		    application:unset_env(common_test, decrypt)
	    end
    end,

    case lists:keysearch(no_auto_compile, 1, Args) of
	{value,_} ->
	    application:set_env(common_test, auto_compile, false);
	false ->
	    application:set_env(common_test, auto_compile, true),

	    InclDirs =
		case lists:keysearch(include,1,Args) of
		    {value,{include,Incl}} when is_list(hd(Incl)) ->
			Incl;		    
		    {value,{include,Incl}} when is_list(Incl) ->
			[Incl];
		    false ->
			[]
		end,
	    case os:getenv("CT_INCLUDE_PATH") of
		false ->
		    application:set_env(common_test, include, InclDirs);
		CtInclPath ->
		    InclDirs1 = string:tokens(CtInclPath,[$:,$ ,$,]),
		    application:set_env(common_test, include, InclDirs1++InclDirs)
	    end
    end,

    case lists:keysearch(basic_html, 1, Args) of
	{value,_} ->
	    application:set_env(common_test, basic_html, true);
	false ->
	    application:set_env(common_test, basic_html, false)
    end,

    Result =
	case lists:keysearch(refresh_logs, 1, Args) of
	    {value,{refresh_logs,Refresh}} ->
		LogDir1 = case Refresh of
			      [] -> LogDir;
			      [RefreshDir] -> ?abs(RefreshDir)
			  end,
		{ok,Cwd} = file:get_cwd(),
		file:set_cwd(LogDir1),
		timer:sleep(500),		% give the shell time to print version etc
		io:nl(),
		case catch ct_logs:make_all_suites_index(refresh) of
		    {'EXIT',ASReason} ->
			file:set_cwd(Cwd),
			{error,{all_suites_index,ASReason}};
		    _ ->
			case catch ct_logs:make_all_runs_index(refresh) of
			    {'EXIT',ARReason} ->
				file:set_cwd(Cwd),
				{error,{all_runs_index,ARReason}};
			    _ ->
				file:set_cwd(Cwd),
				io:format("Logs in ~s refreshed!~n~n", [LogDir1]),
				timer:sleep(500), % time to flush io before quitting
				ok
			end
		end;
	    false ->    
		Config = ct_config:prepare_config_list(Args),
		case Config of
		    [] ->
			case install([{config,[]},
				      {event_handler,EvHandlers}],
				     LogDir) of
			    ok ->
				script_start2(VtsOrShell, [], EvHandlers,
					      Args, LogDir, Cover);
			    Error ->
				Error
			end;
		    Config ->
			case lists:keysearch(spec, 1, Args) of
			    false ->
				case check_and_install_configfiles(Config,
						LogDir, EvHandlers) of
				    ok ->
					script_start2(VtsOrShell, Config,
						      EvHandlers, Args, LogDir,
						      Cover);
				    Error ->
					Error
				end;
			    _ ->
				script_start2(VtsOrShell, Config,
					      EvHandlers, Args, LogDir, Cover)
			end
		end
	end,
    Parent ! {self(), Result}.

check_and_install_configfiles(Configs, LogDir, EvHandlers) ->
    case ct_config:check_config_files(Configs) of
    false->
	install([{config,Configs},
		 {event_handler,EvHandlers}], LogDir);
    {value, {error, {nofile, File}}} ->
	{error,{cant_read_config_file,File}};
    {value, {error, {wrong_config, Message}}}->
	{error,{wrong_config, Message}};
    {value, {error, {callback, File}}} ->
	{error,{cant_load_callback_module,File}}
    end.

script_start2(false, ConfigFiles, EvHandlers, Args, LogDir, Cover) ->
    case lists:keysearch(spec, 1, Args) of
	{value,{spec,[]}} ->
	    {error,no_testspec_specified};
	{value,{spec,Specs}} ->
	    Relaxed = lists:keymember(allow_user_terms, 1, Args),
	    %% using testspec as input for test
	    case catch ct_testspec:collect_tests_from_file(Specs, Relaxed) of
		{error,Reason} ->
		    {error,Reason};
		TS ->
		    {LogDir1,TSCoverFile,ConfigFiles1,EvHandlers1,Include1} = 
			get_data_for_node(TS,node()),
		    UserInclude =
			case application:get_env(common_test, include) of
			    {ok,Include} -> Include++Include1;
			    _ -> Include1
			end,
		    application:set_env(common_test, include, UserInclude),
		    LogDir2 = which_logdir(LogDir,LogDir1),
		    CoverOpt = case {Cover,TSCoverFile} of
				   {false,undef} -> [];
				   {_,undef} ->     [Cover];
				   {false,_} ->     [{cover,TSCoverFile}]
			       end,
		    case check_and_install_configfiles(
					 ConfigFiles++ConfigFiles1, LogDir2,
					 EvHandlers++EvHandlers1) of
			ok ->
			    {Run,Skip} = ct_testspec:prepare_tests(TS, node()),
			    do_run(Run, Skip, CoverOpt, Args, LogDir2);
			Error ->
			    Error
		    end
	    end;
	false ->
	    script_start3(false, ConfigFiles, EvHandlers, Args, LogDir, Cover)
    end;
script_start2(VtsOrShell, ConfigFiles, EvHandlers, Args, LogDir, Cover) ->
    script_start3(VtsOrShell, ConfigFiles, EvHandlers, Args, LogDir, Cover).

script_start3(VtsOrShell, ConfigFiles, EvHandlers, Args, LogDir, Cover) ->
    case lists:keysearch(dir, 1, Args) of
	{value,{dir,[]}} ->
	    {error,no_dir_specified};
	{value,{dir,Dirs}} ->
	    script_start4(VtsOrShell, ConfigFiles, EvHandlers, tests(Dirs),
			  Cover, Args, LogDir);
	false ->
	    case lists:keysearch(suite, 1, Args) of
		{value,{suite,[]}} ->
		    {error,no_suite_specified};
		{value,{suite,Suites}} ->
		    StepOrCover =
			case lists:keysearch(step, 1, Args) of
			    {value,Step} -> Step;
			    false -> Cover
			end,
		    S2M = fun(S) ->
				  {filename:dirname(S),
				   list_to_atom(
				     filename:rootname(filename:basename(S)))}
			  end,
		    DirMods = lists:map(S2M, Suites),
		    {Specified,GroupsAndCases} =
			case {lists:keysearch(group, 1, Args),
			      lists:keysearch('case', 1, Args)} of
			    {{value,{_,Gs}},{value,{_,Cs}}} -> {true,Gs++Cs};
			    {{value,{_,Gs}},_}              -> {true,Gs};
			    {_,{value,{_,Cs}}}              -> {true,Cs};
			    _                               -> {false,[]}
			end,
		    if Specified, length(GroupsAndCases) == 0 ->
			    {error,no_case_or_group_specified};
		       Specified, length(DirMods) > 1 ->
			    {error,multiple_suites_and_cases};
		       length(GroupsAndCases) > 0, length(DirMods) == 1 ->
			    GsAndCs = lists:map(fun(C) -> list_to_atom(C) end, 
						GroupsAndCases),
			    script_start4(VtsOrShell, ConfigFiles, EvHandlers,
					  tests(DirMods, GsAndCs),
					  StepOrCover, Args, LogDir);
		       not Specified, length(DirMods) > 0 ->
			    script_start4(VtsOrShell, ConfigFiles, EvHandlers,
					  tests(DirMods), 
					  StepOrCover, Args, LogDir);
		       true ->
			    {error,incorrect_suite_and_case_options}
		    end;
		false when VtsOrShell=/=false ->
		    script_start4(VtsOrShell, ConfigFiles, EvHandlers,
				  [], Cover, Args, LogDir);
		false ->
		    script_usage(),
		    {error,incorrect_usage}
	    end
    end.

script_start4(vts, ConfigFiles, EvHandlers, Tests, false, _Args, LogDir) ->
    vts:init_data(ConfigFiles, EvHandlers, ?abs(LogDir), Tests);
script_start4(shell, ConfigFiles, EvHandlers, _Tests, false, Args, LogDir) ->
    Opts = [{config,ConfigFiles},{event_handler,EvHandlers}],
    if ConfigFiles == [] ->
	    ok;
       true ->
	    io:format("\nInstalling: ~p\n\n", [ConfigFiles])
    end,
    case install(Opts) of
	ok ->
	    ct_util:start(interactive, LogDir),
	    log_ts_names(Args),
	    io:nl(),
	    ok;
	Error ->
	    Error
    end;
script_start4(vts, _CfgFs, _EvHs, _Tests, _Cover={cover,_}, _Args, _LogDir) ->
    %% Add support later (maybe).
    script_usage(),
    erlang:halt();
script_start4(shell, _CfgFs, _EvHs, _Tests, _Cover={cover,_}, _Args, _LogDir) ->
    %% Add support later (maybe).
    script_usage();
script_start4(false, _CfgFs, _EvHs, Tests, Cover={cover,_}, Args, LogDir) ->
    do_run(Tests, [], [Cover], Args, LogDir);
script_start4(false, _ConfigFiles, _EvHandlers, Tests, false, Args, LogDir) ->
    do_run(Tests, [], [], Args, LogDir);
script_start4(false, _ConfigFiles, _EvHandlers, Test, Step, Args, LogDir) ->
    do_run(Test, [], [Step], Args, LogDir);
script_start4(vts, _ConfigFiles, _EvHandlers, _Test, _Step, _Args, _LogDir) ->
    script_usage(),
    erlang:halt();
script_start4(shell, _ConfigFiles, _EvHandlers, _Test, _Step, _Args, _LogDir) ->
    script_usage().

%%%-----------------------------------------------------------------
%%% @spec script_usage() -> ok
%%% @doc Print usage information for <code>run_test</code>.
script_usage() ->
    io:format("\n\nUsage:\n\n"),
    io:format("Run tests in web based GUI:\n\n"
	      "\trun_test -vts [-browser Browser]"
	      "\n\t[-config ConfigFile1 ConfigFile2 .. ConfigFileN]"
	      "\n\t[-decrypt_key Key] | [-decrypt_file KeyFile]"
	      "\n\t[-dir TestDir1 TestDir2 .. TestDirN] |"
	      "\n\t[-suite Suite [-case Case]]"
	      "\n\t[-include InclDir1 InclDir2 .. InclDirN]" 
	      "\n\t[-no_auto_compile]"
	      "\n\t[-basic_html]\n\n"),
    io:format("Run tests from command line:\n\n"
	      "\trun_test [-dir TestDir1 TestDir2 .. TestDirN] |"
	      "\n\t[-suite Suite1 Suite2 .. SuiteN [-case Case1 Case2 .. CaseN]]"
	      "\n\t[-step [config | keep_inactive]]"
	      "\n\t[-config ConfigFile1 ConfigFile2 .. ConfigFileN]"
	      "\n\t[-userconfig CallbackModule ConfigFile1 .. ConfigFileN]"
	      "\n\t[-decrypt_key Key] | [-decrypt_file KeyFile]"
	      "\n\t[-logdir LogDir]"
	      "\n\t[-silent_connections [ConnType1 ConnType2 .. ConnTypeN]]"
	      "\n\t[-stylesheet CSSFile]"
	      "\n\t[-cover CoverCfgFile]"
	      "\n\t[-event_handler EvHandler1 EvHandler2 .. EvHandlerN]"
	      "\n\t[-include InclDir1 InclDir2 .. InclDirN]" 
	      "\n\t[-no_auto_compile]"
	      "\n\t[-basic_html]" 
	      "\n\t[-repeat N [-force_stop]] |" 
	      "\n\t[-duration HHMMSS [-force_stop]] |"
	      "\n\t[-until [YYMoMoDD]HHMMSS [-force_stop]]\n\n"),
    io:format("Run tests using test specification:\n\n"
	      "\trun_test -spec TestSpec1 TestSpec2 .. TestSpecN"
	      "\n\t[-config ConfigFile1 ConfigFile2 .. ConfigFileN]"
	      "\n\t[-decrypt_key Key] | [-decrypt_file KeyFile]"
	      "\n\t[-logdir LogDir]"
	      "\n\t[-allow_user_terms]"
	      "\n\t[-silent_connections [ConnType1 ConnType2 .. ConnTypeN]]"
	      "\n\t[-stylesheet CSSFile]"
	      "\n\t[-cover CoverCfgFile]"
	      "\n\t[-event_handler EvHandler1 EvHandler2 .. EvHandlerN]"
	      "\n\t[-include InclDir1 InclDir2 .. InclDirN]" 
	      "\n\t[-no_auto_compile]"
	      "\n\t[-basic_html]" 
	      "\n\t[-repeat N [-force_stop]] |" 
	      "\n\t[-duration HHMMSS [-force_stop]] |"
	      "\n\t[-until [YYMoMoDD]HHMMSS [-force_stop]]\n\n"),
    io:format("Refresh the HTML index files:\n\n"
	      "\trun_test -refresh_logs [LogDir]"
	      "[-logdir LogDir] "
	      "[-basic_html]\n\n"),
    io:format("Run CT in interactive mode:\n\n"
	      "\trun_test -shell"
	      "\n\t[-config ConfigFile1 ConfigFile2 .. ConfigFileN]"
	      "\n\t[-decrypt_key Key] | [-decrypt_file KeyFile]\n\n").
	      

%%%-----------------------------------------------------------------
%%% @hidden
%%% @equiv ct:install/1
install(Opts) ->
    install(Opts, ".").

install(Opts, LogDir) ->
    case application:get_env(common_test, decrypt) of
	{ok,_} ->
	    ok;
	_ ->
	    case lists:keysearch(decrypt, 1, Opts) of
		{value,{_,KeyOrFile}} ->
		    application:set_env(common_test, decrypt, KeyOrFile);
		false ->
		    application:unset_env(common_test, decrypt)
	    end
    end,
    case whereis(ct_util_server) of
	undefined ->
	    VarFile = variables_file_name(LogDir),
	    %% io:format("Varfile=~p~n", [VarFile]),
	    case file:open(VarFile, [write]) of
		{ok,Fd} ->
		    [io:format(Fd, "~p.\n", [Opt]) || Opt <- Opts],
		    file:close(Fd),
		    ok;
		{error,Reason} -> 
		    io:format("CT failed to install configuration data. Please "
			      "verify that the log directory exists and that "
			      "write permission is set.\n\n", []),
		    {error,{VarFile,Reason}}
	    end;
	_ ->
	    io:format("It is not possible to install CT while running "
		      "in interactive mode.\n"
		      "To exit this mode, run ct:stop_interactive().\n"
		      "To enter the interactive mode again, "
		      "run ct:start_interactive()\n\n", []),
	    {error,interactive_mode}
    end.

variables_file_name(Dir) ->
    filename:join(Dir, "variables-"++atom_to_list(node())).

%%%-----------------------------------------------------------------
%%% @hidden
%%% @equiv ct:run_test/1

%%   Opts = [OptTuples]
%%   OptTuples = {config,CfgFiles} | {dir,TestDirs} | {suite,Suites} |
%%               {testcase,Cases} | {spec,TestSpecs} | {allow_user_terms,Bool} |
%%               {logdir,LogDir} | {cover,CoverSpecFile} | {step,StepOpts} |
%%               {silent_connections,Conns} | {event_handler,EventHandlers} | 
%%               {include,InclDirs} | {auto_compile,Bool} | 
%%               {repeat,N} | {duration,DurTime} | {until,StopTime} | {force_stop,Bool} |
%%               {decrypt,KeyOrFile}

run_test(Opt) when is_tuple(Opt) ->
    run_test([Opt]);

run_test(Opts) when is_list(Opts) ->
    case lists:keysearch(refresh_logs, 1, Opts) of
	{value,{_,RefreshDir}} ->
	    refresh_logs(?abs(RefreshDir)),
	    ok;
	false ->
	    Tracing = start_trace(Opts),
	    {ok,Cwd} = file:get_cwd(),
	    io:format("~nCommon Test starting (cwd is ~s)~n~n", [Cwd]),	    
	    Res =
		case ct_repeat:loop_test(func, Opts) of
		    false ->
			case catch run_test1(Opts) of
			    {'EXIT',Reason} -> 
				file:set_cwd(Cwd),
				{error,Reason};
			    Result -> 
				Result
			end;
		    Result ->
			Result
		end,
	    stop_trace(Tracing),
	    Res
    end.

run_test1(Opts) ->
    LogDir =
	case lists:keysearch(logdir, 1, Opts) of
	    {value,{_,LD}} when is_list(LD) -> LD;
	    false -> "."
	end,
    CfgFiles = ct_config:get_config_file_list(Opts),
    EvHandlers =
	case lists:keysearch(event_handler, 1, Opts) of
	    {value,{_,H}} when is_atom(H) ->
		[{H,[]}];
	    {value,{_,H}} ->
		Hs =
		    if is_tuple(H) -> [H];
		       is_list(H) -> H;
		       true -> []
		    end,
		lists:flatten(
		  lists:map(fun(EH) when is_atom(EH) ->
				    {EH,[]};
			       ({HL,Args}) when is_list(HL) ->
				    [{EH,Args} || EH <- HL];
			       ({EH,Args}) when is_atom(EH) ->
				    {EH,Args};
			       (_) ->
				    []
			    end, Hs));
	    _ ->
		[]
	end,
    SilentConns =
	case lists:keysearch(silent_connections, 1, Opts) of
	    {value,{_,all}} ->
		[];
	    {value,{_,Conns}} ->
		Conns;
	    _ ->
		undefined
	end,
    Cover = 
	case lists:keysearch(cover, 1, Opts) of
	    {value,{_,CoverFile}} ->
		[{cover,?abs(CoverFile)}];
	    _ ->
		[]
	end,
    Include =
	case lists:keysearch(auto_compile, 1, Opts) of
	    {value,{auto_compile,ACBool}} ->
		application:set_env(common_test, auto_compile, ACBool),
		[];
	    _ ->
		application:set_env(common_test, auto_compile, true),		
		InclDirs =
		    case lists:keysearch(include, 1, Opts) of
			{value,{include,Incl}}  when is_list(hd(Incl)) ->
			    Incl;		    
			{value,{include,Incl}} when is_list(Incl) ->
			    [Incl];
			false ->
			    []
		    end,
		case os:getenv("CT_INCLUDE_PATH") of
		    false ->
			application:set_env(common_test, include, InclDirs),
			InclDirs;
		    CtInclPath ->
			InclDirs1 = string:tokens(CtInclPath, [$:,$ ,$,]),
			AllInclDirs = InclDirs1++InclDirs,
			application:set_env(common_test, include, AllInclDirs),
			AllInclDirs
		end
	end,

    case lists:keysearch(decrypt, 1, Opts) of
	{value,{_,Key={key,_}}} ->
	    application:set_env(common_test, decrypt, Key);
	{value,{_,{file,KeyFile}}} ->
	    application:set_env(common_test, decrypt, {file,filename:absname(KeyFile)});
	false ->
	    application:unset_env(common_test, decrypt)
    end,

    case lists:keysearch(basic_html, 1, Opts) of
	{value,{basic_html,BasicHtmlBool}} ->
	    application:set_env(common_test, basic_html, BasicHtmlBool);
	_ ->
	    application:set_env(common_test, basic_html, false)
    end,

    case lists:keysearch(spec, 1, Opts) of
	{value,{_,Specs}} ->
	    Relaxed =
		case lists:keysearch(allow_user_terms, 1, Opts) of
		    {value,{_,true}} -> true;
		    _ -> false
		end,	    
	    %% using testspec(s) as input for test
	    run_spec_file(LogDir, CfgFiles, EvHandlers, Include, Specs, Relaxed, Cover,
			 replace_opt([{silent_connections,SilentConns}], Opts));
	false ->
	    case lists:keysearch(prepared_tests, 1, Opts) of
		{value,{_,{Run,Skip},Specs}} ->	% use prepared tests
		    run_prepared(LogDir, CfgFiles, EvHandlers,
				 Run, Skip, Cover,
				 replace_opt([{silent_connections,SilentConns},
					      {spec,Specs}],Opts));
		false ->		% use dir|suite|case
		    StepOrCover =
			case lists:keysearch(step, 1, Opts) of
			    {value,Step} -> [Step];
			    false -> Cover
			end,
		    run_dir(LogDir, CfgFiles, EvHandlers, StepOrCover,
			    replace_opt([{silent_connections,SilentConns}], Opts))
	    end
    end.

replace_opt([O={Key,_Val}|Os], Opts) ->
    [O | replace_opt(Os, lists:keydelete(Key, 1, Opts))];
replace_opt([], Opts) ->
    Opts.

run_spec_file(LogDir, CfgFiles, EvHandlers, Include, Specs, Relaxed, Cover, Opts) ->
    Specs1 = case Specs of
		 [X|_] when is_integer(X) -> [Specs];
		 _ -> Specs
	     end,
    AbsSpecs = lists:map(fun(SF) -> ?abs(SF) end, Specs1), 
    log_ts_names(AbsSpecs),
    case catch ct_testspec:collect_tests_from_file(AbsSpecs, Relaxed) of
	{error,CTReason} ->
	    exit(CTReason);
	TS ->
	    {LogDir1,TSCoverFile,CfgFiles1,EvHandlers1,Include1} = 
		get_data_for_node(TS, node()),
	    application:set_env(common_test, include, Include++Include1),
	    LogDir2 = which_logdir(LogDir, LogDir1),
	    CoverOpt = case {Cover,TSCoverFile} of
			   {[],undef} -> [];
			   {_,undef} ->  Cover;
			   {[],_} ->     [{cover,TSCoverFile}]
		       end,
	    case check_and_install_configfiles(CfgFiles++CfgFiles1, LogDir2,
				 EvHandlers++EvHandlers1) of
		ok ->
		    {Run,Skip} = ct_testspec:prepare_tests(TS, node()),
		    do_run(Run, Skip, CoverOpt,
			   replace_opt([{spec,AbsSpecs}], Opts),
			   LogDir2);
		{error,GCFReason} ->
		    exit(GCFReason)
	    end
    end.

run_prepared(LogDir, CfgFiles, EvHandlers, Run, Skip, Cover, Opts) ->
    case check_and_install_configfiles(CfgFiles, LogDir, EvHandlers) of
	ok ->
	    do_run(Run, Skip, Cover, Opts, LogDir);
	{error,Reason} ->
	    exit(Reason)
    end.    

check_config_file(Callback, File)->
    case Callback:check_parameter(File) of
	{ok, {file, File}}->
	    ?abs(File);
	{ok, {config, _}}->
	    File;
	{error, {wrong_config, Message}}->
	    exit({wrong_config, {Callback, Message}});
	{error, {nofile, File}}->
	    exit({no_such_file, ?abs(File)})
    end.

run_dir(LogDir, CfgFiles, EvHandlers, StepOrCover, Opts) ->
    AbsCfgFiles = 
	lists:map(fun({Callback, FileList})->
	    case code:is_loaded(Callback) of
		{file, _Path}->
		    ok;
		false->
		    case code:load_file(Callback) of
			{module, Callback}->
			    ok;
			{error, _}->
			    exit({no_such_module, Callback})
		    end
	    end,
	    {Callback,
		lists:map(fun(File)->
		    check_config_file(Callback, File)
		end, FileList)}
	    end,
	CfgFiles),
    case install([{config,AbsCfgFiles},{event_handler,EvHandlers}], LogDir) of
	ok -> ok;
	{error,IReason} -> exit(IReason)
    end,
    case lists:keysearch(dir,1,Opts) of
	{value,{_,Dirs=[Dir|_]}} when not is_integer(Dir),
	                              length(Dirs)>1 ->
	    %% multiple dirs (no suite)
	    do_run(tests(Dirs), [], StepOrCover, Opts, LogDir);
	false ->				% no dir
	    %% fun for converting suite name to {Dir,Mod} tuple
	    S2M = fun(S) when is_list(S) ->
			  {filename:dirname(S),
			   list_to_atom(filename:rootname(filename:basename(S)))};
		     (A) ->
			  {".",A}
		  end,
	    case lists:keysearch(suite, 1, Opts) of
		{value,{_,Suite}} when is_integer(hd(Suite)) ; is_atom(Suite) ->
		    {Dir,Mod} = S2M(Suite),
		    case listify(proplists:get_value(group, Opts, [])) ++
			 listify(proplists:get_value(testcase, Opts, [])) of
			[] ->
			    do_run(tests(Dir, listify(Mod)), [], StepOrCover, Opts, LogDir);
			GsAndCs ->
			    do_run(tests(Dir, Mod, GsAndCs), [], StepOrCover, Opts, LogDir)
		    end;
		{value,{_,Suites}} ->
		    do_run(tests(lists:map(S2M, Suites)), [], StepOrCover, Opts, LogDir);
		_ ->
		    exit(no_tests_specified)
	    end;		   
	{value,{_,Dir}} ->
	    case lists:keysearch(suite, 1, Opts) of
		{value,{_,Suite}} when is_integer(hd(Suite)) ; is_atom(Suite) ->
		    Mod = if is_atom(Suite) -> Suite; 
			     true -> list_to_atom(Suite) 
			  end,
		    case listify(proplists:get_value(group, Opts, [])) ++
			 listify(proplists:get_value(testcase, Opts, [])) of
			[] ->
			    do_run(tests(Dir, listify(Mod)), [], StepOrCover, Opts, LogDir);
			GsAndCs ->
			    do_run(tests(Dir, Mod, GsAndCs), [], StepOrCover, Opts, LogDir)
		    end;
		{value,{_,Suites=[Suite|_]}} when is_list(Suite) ->
		    Mods = lists:map(fun(Str) -> list_to_atom(Str) end, Suites),
		    do_run(tests(delistify(Dir), Mods), [], StepOrCover, Opts, LogDir);		    
		{value,{_,Suites}} ->
		    do_run(tests(delistify(Dir), Suites), [], StepOrCover, Opts, LogDir);		    
	        false ->			% no suite, only dir
		    do_run(tests(listify(Dir)), [], StepOrCover, Opts, LogDir)
	    end   
    end.

%%%-----------------------------------------------------------------
%%% @hidden
%%%

%% using testspec(s) as input for test
run_testspec(TestSpec) ->
    {ok,Cwd} = file:get_cwd(),
    io:format("~nCommon Test starting (cwd is ~s)~n~n", [Cwd]),
    case catch run_testspec1(TestSpec) of
	{'EXIT',Reason} -> 
	    file:set_cwd(Cwd),
	    {error,Reason};
	Result -> 
	    Result
    end.

run_testspec1(TestSpec) ->
    case ct_testspec:collect_tests_from_list(TestSpec,false) of
	{error,CTReason} ->
	    exit(CTReason);
	TS ->
	    {LogDir,TSCoverFile,CfgFiles,EvHandlers,Include} = 
		get_data_for_node(TS,node()),
	    case os:getenv("CT_INCLUDE_PATH") of
		false ->
		    application:set_env(common_test, include, Include);
		CtInclPath ->
		    EnvInclude = string:tokens(CtInclPath, [$:,$ ,$,]),
		    application:set_env(common_test, include, EnvInclude++Include)
	    end,
	    CoverOpt = if TSCoverFile == undef -> [];
			  true -> [{cover,TSCoverFile}]
		       end,
	    case check_and_install_configfiles(CfgFiles,LogDir,EvHandlers) of
		ok ->
		    {Run,Skip} = ct_testspec:prepare_tests(TS,node()),
		    do_run(Run,Skip,CoverOpt,[],LogDir);
		{error,GCFReason} ->
		    exit(GCFReason)
	    end
    end.


get_data_for_node(#testspec{logdir=LogDirs,
			    cover=CoverFs,
			    config=Cfgs,
			    userconfig=UsrCfgs,
			    event_handler=EvHs,
			    include=Incl}, Node) ->
    LogDir = case lists:keysearch(Node,1,LogDirs) of
		 {value,{Node,Dir}} -> Dir;
		 false -> "."
	     end,
    Cover = case lists:keysearch(Node,1,CoverFs) of
		{value,{Node,CovFile}} -> CovFile;
		false -> undef
	    end,
    ConfigFiles = [{?ct_config_txt, F} || {N,F} <- Cfgs, N==Node] ++
		  [CBF || {N, CBF} <- UsrCfgs, N==Node],
    EvHandlers =  [{H,A} || {N,H,A} <- EvHs, N==Node],
    Include =  [I || {N,I} <- Incl, N==Node],
    {LogDir,Cover,ConfigFiles,EvHandlers,Include}.


refresh_logs(LogDir) ->
    {ok,Cwd} = file:get_cwd(),
    case file:set_cwd(LogDir) of
	E = {error,_Reason} ->
	    E;
	_ ->
	    case catch ct_logs:make_all_suites_index(refresh) of
		{'EXIT',ASReason} ->
		    file:set_cwd(Cwd),
		    {error,{all_suites_index,ASReason}};
		_ ->
		    case catch ct_logs:make_all_runs_index(refresh) of
			{'EXIT',ARReason} ->
			    file:set_cwd(Cwd),
			    {error,{all_runs_index,ARReason}};
			_ ->
			    file:set_cwd(Cwd),
			    io:format("Logs in ~s refreshed!~n",[LogDir]),
			    ok
		    end
	    end
    end.

which_logdir(".",Dir) ->
    Dir;
which_logdir(Dir,_) ->
    Dir.
	   
listify([C|_]=Str) when is_integer(C) -> [Str];
listify(L) when is_list(L) -> L;
listify(E) -> [E].

delistify([E]) -> E;
delistify(E)   -> E.


%%%-----------------------------------------------------------------
%%% @hidden
%%% @equiv ct:run/3
run(TestDir, Suite, Cases) ->
    install([]),
    do_run(tests(TestDir, Suite, Cases), []).

%%%-----------------------------------------------------------------
%%% @hidden
%%% @equiv ct:run/2
run(TestDir, Suite) when is_list(TestDir), is_integer(hd(TestDir)) ->
    install([]),
    do_run(tests(TestDir, Suite), []).

%%%-----------------------------------------------------------------
%%% @hidden
%%% @equiv ct:run/1
run(TestDirs) ->
    install([]),
    do_run(tests(TestDirs), []).


tests(TestDir, Suites, []) when is_list(TestDir), is_integer(hd(TestDir)) ->
    [{?testdir(TestDir,Suites),ensure_atom(Suites),all}];
tests(TestDir, Suite, Cases) when is_list(TestDir), is_integer(hd(TestDir)) ->
    [{?testdir(TestDir,Suite),ensure_atom(Suite),Cases}].
tests([{Dir,Suite}],Cases) ->
    [{?testdir(Dir,Suite),ensure_atom(Suite),Cases}];
tests(TestDir, Suite) when is_list(TestDir), is_integer(hd(TestDir)) ->
    tests(TestDir, ensure_atom(Suite), all).
tests(DirSuites) when is_list(DirSuites), is_tuple(hd(DirSuites)) ->
    [{?testdir(Dir,Suite),ensure_atom(Suite),all} || {Dir,Suite} <- DirSuites];
tests(TestDir) when is_list(TestDir), is_integer(hd(TestDir)) ->
    tests([TestDir]);
tests(TestDirs) when is_list(TestDirs), is_list(hd(TestDirs)) ->
    [{?testdir(TestDir,all),all,all} || TestDir <- TestDirs].

do_run(Tests, Opt) ->
    do_run(Tests, [], Opt, [], ".").

do_run(Tests, Opt, LogDir) ->
    do_run(Tests, [], Opt, [], LogDir).

do_run(Tests, Skip, Opt, Args, LogDir) ->
    case code:which(test_server) of
	non_existing ->
	    exit({error,no_path_to_test_server});
	_ ->
	    Opt1 = 
		case lists:keysearch(cover, 1, Opt) of
		    {value,{_,CoverFile}} ->
			case ct_cover:get_spec(CoverFile) of
			    {error,Reason} ->
				exit({error,Reason});
			    Spec ->
				[{cover_spec,Spec} |
				 lists:keydelete(cover, 1, Opt)]
			end;
		    _ ->
			Opt
		end,
	    %% This env variable is used by test_server to determine
	    %% which framework it runs under.
	    case os:getenv("TEST_SERVER_FRAMEWORK") of
		false ->
		    os:putenv("TEST_SERVER_FRAMEWORK", "ct_framework");
		"ct_framework" ->
		    ok;
		Other ->
		    erlang:display(list_to_atom("Note: TEST_SERVER_FRAMEWORK = " ++ Other))
	    end,
	    case ct_util:start(LogDir) of
		{error,interactive_mode} ->
		    io:format("CT is started in interactive mode. "
			      "To exit this mode, run ct:stop_interactive().\n"
			      "To enter the interactive mode again, "
			      "run ct:start_interactive()\n\n",[]),
		    {error,interactive_mode};

		_Pid ->
		    %% save style sheet info
		    case lists:keysearch(stylesheet, 1, Args) of
			{value,{_,SSFile}} ->
			    ct_util:set_testdata({stylesheet,SSFile});
			_ ->
			    ct_util:set_testdata({stylesheet,undefined})
		    end,

		    case lists:keysearch(silent_connections, 1, Args) of
			{value,{silent_connections,undefined}} ->
			    ok;
			{value,{silent_connections,[]}} ->
			    Conns = ct_util:override_silence_all_connections(),
			    ct_logs:log("Silent connections", "~p", [Conns]);
			{value,{silent_connections,Cs}} ->
			    Conns = lists:map(fun(S) when is_list(S) ->
						      list_to_atom(S);
						 (A) -> A
					      end, Cs),
			    ct_util:override_silence_connections(Conns),
			    ct_logs:log("Silent connections", "~p", [Conns]);
			_ ->
			    ok
		    end,
		    log_ts_names(Args),
		    TestSuites = suite_tuples(Tests),

		    {SuiteMakeErrors,AllMakeErrors} =
			case application:get_env(common_test, auto_compile) of
			    {ok,false} ->
				SuitesNotFound = verify_suites(TestSuites),
				{SuitesNotFound,SuitesNotFound};
			    _ ->
				{SuiteErrs,HelpErrs} = auto_compile(TestSuites),
				{SuiteErrs,SuiteErrs++HelpErrs}
			end,

		    case continue(AllMakeErrors) of
			true ->
			    SavedErrors = save_make_errors(SuiteMakeErrors),
			    ct_repeat:log_loop_info(Args),
			    {Tests1,Skip1} = final_tests(Tests,[],Skip,SavedErrors),
			    R = do_run_test(Tests1, Skip1, Opt1),
			    ct_util:stop(normal),
			    R;
			false ->
			    io:nl(),
			    ct_util:stop(clean),
			    BadMods =
				lists:foldr(
				  fun({{_,_},Ms}, Acc) ->
					  Ms ++ lists:foldl(
						  fun(M, Acc1) ->
							  lists:delete(M, Acc1)
						  end, Acc, Ms)
				  end, [], AllMakeErrors),
			    {error,{make_failed,BadMods}}
		    end
	    end
    end.

%% attempt to compile the modules specified in TestSuites
auto_compile(TestSuites) ->
    io:format("~nCommon Test: Running make in test directories...~n"),
    UserInclude =
	case application:get_env(common_test, include) of
	    {ok,UserInclDirs} when length(UserInclDirs) > 0 ->
		io:format("Including the following directories:~n"),
		[begin io:format("~p~n",[UserInclDir]), {i,UserInclDir} end || 
		 UserInclDir <- UserInclDirs];
	    _ ->
		[]
	end,
    SuiteMakeErrors =
	lists:flatmap(fun({TestDir,Suite} = TS) ->
			      case run_make(suites, TestDir, Suite, UserInclude) of
				  {error,{make_failed,Bad}} -> 
				      [{TS,Bad}];
				  {error,_} -> 
				      [{TS,[filename:join(TestDir,"*_SUITE")]}];
				  _ -> 
				      []
			      end
		      end, TestSuites),

    %% try to compile other modules than SUITEs in the test directories
    {_,HelpMakeErrors} =
	lists:foldl(
	  fun({Dir,Suite}, {Done,Failed}) ->
		  case lists:member(Dir, Done) of
		      false ->
			  Failed1 =
			      case run_make(helpmods, Dir, Suite, UserInclude) of
				  {error,{make_failed,BadMods}} ->
				      [{{Dir,all},BadMods}|Failed];
				  {error,_} ->
				      [{{Dir,all},[Dir]}|Failed];
				  _ ->
				      Failed
			      end,
			  {[Dir|Done],Failed1};
		      true ->		    % already visited
			  {Done,Failed}
		  end
	  end, {[],[]}, TestSuites),    
    {SuiteMakeErrors,lists:reverse(HelpMakeErrors)}.

%% verify that specified test suites exist (if auto compile is disabled)
verify_suites(TestSuites) ->
    io:nl(),
    Verify = 
	fun({Dir,Suite},NotFound) ->
		case locate_test_dir(Dir, Suite) of
		    {ok,TestDir} ->
			if Suite == all ->
				NotFound;
			   true ->
				Beam = filename:join(TestDir, atom_to_list(Suite)++".beam"),
				case filelib:is_regular(Beam) of
				    true  -> 
					NotFound;
				    false -> 
					Name = filename:join(TestDir, atom_to_list(Suite)),
					io:format("Suite ~w not found in directory ~s~n", 
						  [Suite,TestDir]),
					[{{Dir,Suite},[Name]} | NotFound]
				end
			end;
		    {error,_Reason} ->
			io:format("Directory ~s is invalid~n", [Dir]),
			Name = filename:join(Dir, atom_to_list(Suite)),
			[{{Dir,Suite},[Name]} | NotFound]
		end
	end,
    lists:reverse(lists:foldl(Verify, [], TestSuites)).
		     
    
save_make_errors([]) ->
    [];
save_make_errors(Errors) ->
    Suites = get_bad_suites(Errors,[]),
    ct_logs:log("MAKE RESULTS",
		"Error compiling or locating the following suites: ~n~p",[Suites]),
    %% save the info for logger
    file:write_file(?missing_suites_info,term_to_binary(Errors)),
    Errors.

get_bad_suites([{{_TestDir,_Suite},Failed}|Errors], BadSuites) ->
    get_bad_suites(Errors,BadSuites++Failed);
get_bad_suites([], BadSuites) ->
    BadSuites.

    

%%%-----------------------------------------------------------------
%%% @hidden
%%% @equiv ct:step/3
step(TestDir, Suite, Case) ->
    step(TestDir, Suite, Case, []).

%%%-----------------------------------------------------------------
%%% @hidden
%%% @equiv ct:step/4
step(TestDir, Suite, Case, Opts) when is_list(TestDir), is_atom(Suite), is_atom(Case), 
				   Suite =/= all, Case =/= all ->
    do_run([{TestDir,Suite,Case}], [{step,Opts}]).


%%%-----------------------------------------------------------------
%%% Internal
suite_tuples([{TestDir,Suites,_} | Tests]) when is_list(Suites) ->
    lists:map(fun(S) -> {TestDir,S} end, Suites) ++ suite_tuples(Tests);
suite_tuples([{TestDir,Suite,_} | Tests]) when is_atom(Suite) ->
    [{TestDir,Suite} | suite_tuples(Tests)];
suite_tuples([]) ->
    [].

final_tests([{TestDir,Suites,_}|Tests],
	    Final, Skip, Bad) when is_list(Suites), is_atom(hd(Suites)) ->
%     Separate =
% 	fun(S,{DoSuite,Dont}) ->		
% 		case lists:keymember({TestDir,S},1,Bad) of
% 		    false ->	
% 			{[S|DoSuite],Dont};
% 		    true ->	
% 			SkipIt = {TestDir,S,"Make failed"},
% 			{DoSuite,Dont++[SkipIt]}
% 		end
% 	end,
	
%     {DoSuites,Skip1} =
% 	lists:foldl(Separate,{[],Skip},Suites),
%     Do = {TestDir,lists:reverse(DoSuites),all},

    Skip1 = [{TD,S,"Make failed"} || {{TD,S},_} <- Bad, S1 <- Suites,
				     S == S1, TD == TestDir],
    Final1 = [{TestDir,S,all} || S <- Suites], 
    final_tests(Tests, lists:reverse(Final1)++Final, Skip++Skip1, Bad);

final_tests([{TestDir,all,all}|Tests], Final, Skip, Bad) ->
    MissingSuites =
	case lists:keysearch({TestDir,all}, 1, Bad) of
	    {value,{_,Failed}} ->
		[list_to_atom(filename:basename(F)) || F <- Failed];
	    false ->
		[]
	end,
    Missing = [{TestDir,S,"Make failed"} || S <- MissingSuites],
    Final1 = [{TestDir,all,all}|Final],
    final_tests(Tests, Final1, Skip++Missing, Bad);

final_tests([{TestDir,Suite,Cases}|Tests],
	    Final, Skip, Bad) when Cases==[]; Cases==all  ->
    final_tests([{TestDir,[Suite],all}|Tests], Final, Skip, Bad);

final_tests([{TestDir,Suite,Cases}|Tests], Final, Skip, Bad) ->
    case lists:keymember({TestDir,Suite}, 1, Bad) of
	false ->
	    Do = {TestDir,Suite,Cases},
	    final_tests(Tests, [Do|Final], Skip, Bad);
	true ->
	    Do = {TestDir,Suite,Cases},
	    Skip1 = Skip ++ [{TestDir,Suite,Cases,"Make failed"}],
	    final_tests(Tests, [Do|Final], Skip1, Bad)
    end;

final_tests([], Final, Skip, _Bad) ->
    {lists:reverse(Final),Skip}.

continue([]) ->    
    true;
continue(_MakeErrors) ->
    io:nl(),
    OldGl = group_leader(),
    case set_group_leader_same_as_shell() of
	true ->
	    S = self(),
	    io:format("Failed to compile or locate one or more test suites\n"
		      "Press \'c\' to continue or \'a\' to abort.\n"
		      "Will continue in 15 seconds if no answer is given!\n"),
	    Pid = spawn(fun() ->
				case io:get_line('(c/a) ') of
				    "c\n" ->
					S ! true;
				    _ ->
					S ! false
				end
			end),
	    group_leader(OldGl, self()),
	    receive R when R==true; R==false ->
		    R
	    after 15000 ->
		    exit(Pid, kill),
		    io:format("... timeout - continuing!!\n"),
		    true
	    end;
	false ->				% no shell process to use
	    true
    end.

set_group_leader_same_as_shell() ->
    %%! Locate the shell process... UGLY!!!
    GS2or3 = fun(P) ->
		     case process_info(P,initial_call) of
			 {initial_call,{group,server,X}} when X == 2 ; X == 3 ->
			     true;
			 _ ->
			     false
		     end
	     end,	
    case [P || P <- processes(), GS2or3(P), 
	       true == lists:keymember(shell,1,element(2,process_info(P,dictionary)))] of
	[GL|_] ->
	    group_leader(GL, self());
	[] ->
	    false
    end.

check_and_add([{TestDir0,M,_} | Tests], Added) ->
    case locate_test_dir(TestDir0, M) of
	{ok,TestDir} ->
	    case lists:member(TestDir, Added) of
		true ->
		    check_and_add(Tests, Added);
		false ->
		    true = code:add_patha(TestDir),
		    check_and_add(Tests, [TestDir|Added])
	    end;
	{error,_} ->
	    {error,{invalid_directory,TestDir0}}
    end;
check_and_add([], _) ->
    ok.

do_run_test(Tests, Skip, Opt) ->
    case check_and_add(Tests, []) of
	ok ->
	    ct_util:set_testdata({stats,{0,0,{0,0}}}),
	    ct_util:set_testdata({cover,undefined}),
	    test_server_ctrl:start_link(local),
	    case lists:keysearch(cover_spec, 1, Opt) of
		{value,{_,CovData={CovFile,
				   CovNodes,
				   _CovImport,
				   CovExport,
				   #cover{app        = CovApp,
					  level      = CovLevel,
					  excl_mods  = CovExcl,
					  incl_mods  = CovIncl,
					  cross      = CovCross,
					  src        = _CovSrc}}}} ->
		    ct_logs:log("COVER INFO","Using cover specification file: ~s~n"
				"App: ~w~n"
				"Cross cover: ~w~n"
				"Including ~w modules~n"
				"Excluding ~w modules",
				[CovFile,CovApp,CovCross,length(CovIncl),length(CovExcl)]), 

		    %% cover export file will be used for export and import
		    %% between tests so make sure it doesn't exist initially
		    case filelib:is_file(CovExport) of
			true ->
			    DelResult = file:delete(CovExport),
			    ct_logs:log("COVER INFO",
					"Warning! Export file ~s already exists. "
					"Deleting with result: ~p",
					[CovExport,DelResult]);
			false ->
			    ok
		    end,

		    %% tell test_server which modules should be cover compiled
		    %% note that actual compilation is done when tests start
		    test_server_ctrl:cover(CovApp, CovFile, CovExcl, CovIncl,
					   CovCross, CovExport, CovLevel),
		    %% save cover data (used e.g. to add nodes dynamically)
		    ct_util:set_testdata({cover,CovData}),
		    %% start cover on specified nodes
		    if (CovNodes /= []) and (CovNodes /= undefined) ->
			    ct_logs:log("COVER INFO",
					"Nodes included in cover session: ~w",
					[CovNodes]),
			    cover:start(CovNodes);
		       true ->
			    ok
		    end,
		    true;
		_ ->
		    false
	    end,	 
	    %% let test_server expand the test tuples and count no of cases
	    {Suites,NoOfCases} = count_test_cases(Tests, Skip),
	    Suites1 = delete_dups(Suites),
	    NoOfTests = length(Tests),
	    NoOfSuites = length(Suites1),
	    ct_util:warn_duplicates(Suites1),	    
	    {ok,Cwd} = file:get_cwd(),
	    io:format("~nCWD set to: ~p~n", [Cwd]),
	    if NoOfCases == unknown ->
		    io:format("~nTEST INFO: ~w test(s), ~w suite(s)~n~n", 
			      [NoOfTests,NoOfSuites]),
		    ct_logs:log("TEST INFO","~w test(s), ~w suite(s)", 
				[NoOfTests,NoOfSuites]);
	       true ->
		    io:format("~nTEST INFO: ~w test(s), ~w case(s) in ~w suite(s)~n~n", 
			      [NoOfTests,NoOfCases,NoOfSuites]),
		    ct_logs:log("TEST INFO","~w test(s), ~w case(s) in ~w suite(s)", 
				[NoOfTests,NoOfCases,NoOfSuites])
	    end,
	    ct_event:notify(#event{name=start_info,
				   node=node(),
				   data={NoOfTests,NoOfSuites,NoOfCases}}),
	    CleanUp = add_jobs(Tests, Skip, Opt, []),
	    unlink(whereis(test_server_ctrl)),
	    catch test_server_ctrl:wait_finish(), 
	    %% check if last testcase has left a "dead" trace window 
	    %% behind, and if so, kill it
	    case ct_util:get_testdata(interpret) of
		{_What,kill,{TCPid,AttPid}} ->
		    ct_util:kill_attached(TCPid, AttPid);
		_ ->
		    ok
	    end,
	    lists:foreach(fun(Suite) -> 
				  maybe_cleanup_interpret(Suite, Opt) 
			  end, CleanUp);
	Error ->
	    Error
    end.

delete_dups([S | Suites]) ->
    Suites1 = lists:delete(S, Suites),
    [S | delete_dups(Suites1)];
delete_dups([]) ->
    [].

count_test_cases(Tests, Skip) ->
    SendResult = fun(Me, Result) -> Me ! {no_of_cases,Result} end,
    TSPid = test_server_ctrl:start_get_totals(SendResult),
    Ref = erlang:monitor(process, TSPid),
    add_jobs(Tests, Skip, [], []),
    {Suites,NoOfCases} = count_test_cases1(length(Tests), 0, [], Ref),
    erlang:demonitor(Ref),
    test_server_ctrl:stop_get_totals(),
    {Suites,NoOfCases}.

count_test_cases1(0, N, Suites, _) ->
    {lists:flatten(Suites), N};
count_test_cases1(Jobs, N, Suites, Ref) ->
    receive
	{no_of_cases,{Ss,N1}} -> 
	    count_test_cases1(Jobs-1, add_known(N,N1), [Ss|Suites], Ref);
	{'DOWN', Ref, _, _, _} -> 
	    {[],0}
    end.				      

add_known(unknown, _) ->
    unknown;
add_known(_, unknown) ->
    unknown;
add_known(N, N1) ->
    N+N1.

add_jobs([{TestDir,all,_}|Tests], Skip, Opt, CleanUp) ->
    Name = get_name(TestDir),
    case catch test_server_ctrl:add_dir_with_skip(Name, TestDir,
						  skiplist(TestDir,Skip)) of
	{'EXIT',_} -> 
	    CleanUp;
	_ ->
	    wait_for_idle(),
	    add_jobs(Tests, Skip, Opt, CleanUp)
    end;
add_jobs([{TestDir,[Suite],all}|Tests], Skip, Opt, CleanUp) when is_atom(Suite) ->
    add_jobs([{TestDir,Suite,all}|Tests], Skip, Opt, CleanUp);
add_jobs([{TestDir,Suites,all}|Tests], Skip, Opt, CleanUp) when is_list(Suites) ->
    Name = get_name(TestDir) ++ ".suites",
    case catch test_server_ctrl:add_module_with_skip(Name, Suites,
						     skiplist(TestDir,Skip)) of
	{'EXIT',_} -> 
	    CleanUp;
	_ ->
	    wait_for_idle(),
	    add_jobs(Tests, Skip, Opt, CleanUp)
    end;
add_jobs([{TestDir,Suite,all}|Tests], Skip, Opt, CleanUp) ->
    case maybe_interpret(Suite, all, Opt) of
	ok ->
	    Name =  get_name(TestDir) ++ "." ++ atom_to_list(Suite),
	    case catch test_server_ctrl:add_module_with_skip(Name, [Suite],
							     skiplist(TestDir,Skip)) of
		{'EXIT',_} -> 
		    CleanUp;
		_ ->
		    wait_for_idle(),
		    add_jobs(Tests, Skip, Opt, [Suite|CleanUp])
	    end;
	Error ->
	    Error
    end;
add_jobs([{TestDir,Suite,[Case]}|Tests], Skip, Opt, CleanUp) when is_atom(Case) ->
    add_jobs([{TestDir,Suite,Case}|Tests], Skip, Opt, CleanUp);
add_jobs([{TestDir,Suite,Cases}|Tests], Skip, Opt, CleanUp) when is_list(Cases) ->
    case maybe_interpret(Suite, Cases, Opt) of
	ok ->
	    Name =  get_name(TestDir) ++ "." ++	atom_to_list(Suite) ++ ".cases",
	    case catch test_server_ctrl:add_cases_with_skip(Name, Suite, Cases,
							    skiplist(TestDir,Skip)) of
		{'EXIT',_} -> 
		    CleanUp;
		_ ->
		    wait_for_idle(),
		    add_jobs(Tests, Skip, Opt, [Suite|CleanUp])
	    end;
	Error ->
	    Error
    end;
add_jobs([{TestDir,Suite,Case}|Tests], Skip, Opt, CleanUp) when is_atom(Case) ->
    case maybe_interpret(Suite, Case, Opt) of
	ok ->
	    Name = get_name(TestDir) ++	"." ++ atom_to_list(Suite) ++ "." ++ 
		atom_to_list(Case),
	    case catch test_server_ctrl:add_case_with_skip(Name, Suite, Case,
							   skiplist(TestDir,Skip)) of
		{'EXIT',_} -> 
		    CleanUp;
		_ ->
		    wait_for_idle(),
		    add_jobs(Tests, Skip, Opt, [Suite|CleanUp])
	    end;
	Error ->
	    Error
    end;
add_jobs([], _, _, CleanUp) ->
    CleanUp.

wait_for_idle() ->
    ct_util:update_last_run_index(),
    Notify = fun(Me) -> Me ! idle end,
    case catch test_server_ctrl:idle_notify(Notify) of
	{'EXIT',_} ->
	    error;
	TSPid ->
	    %% so we don't hang forever if test_server dies
	    Ref = erlang:monitor(process, TSPid),
	    Result = receive
			 idle -> ok;
			 {'DOWN', Ref, _, _, _} -> error
		     end,
	    erlang:demonitor(Ref),
	    ct_util:update_last_run_index(),
	    Result
    end.

skiplist(Dir, [{Dir,all,Cmt}|Skip]) ->
    %% we need to turn 'all' into list of modules since
    %% test_server doesn't do skips on Dir level
    Ss = filelib:wildcard(filename:join(Dir, "*_SUITE.beam")),
    [{list_to_atom(filename:basename(S,".beam")),Cmt} || S <- Ss] ++ skiplist(Dir,Skip);
skiplist(Dir, [{Dir,S,Cmt}|Skip]) ->
    [{S,Cmt} | skiplist(Dir, Skip)];
skiplist(Dir, [{Dir,S,C,Cmt}|Skip]) ->
    [{S,C,Cmt} | skiplist(Dir, Skip)];
skiplist(Dir, [_|Skip]) ->
    skiplist(Dir, Skip);
skiplist(_Dir, []) ->
    [].

get_name(Dir) ->
    TestDir =
	case filename:basename(Dir) of
	    "test" ->
		filename:dirname(Dir);
	    _ ->
		Dir
	end,
    Base = filename:basename(TestDir),
    case filename:basename(filename:dirname(TestDir)) of
	"" -> 
	    Base;
	TopDir ->
	    TopDir ++ "." ++ Base
    end.


run_make(TestDir, Mod, UserInclude) ->
    run_make(suites, TestDir, Mod, UserInclude).

run_make(Targets, TestDir0, Mod, UserInclude) when is_list(Mod) ->
    run_make(Targets, TestDir0, list_to_atom(Mod), UserInclude);

run_make(Targets, TestDir0, Mod, UserInclude) ->
    case locate_test_dir(TestDir0, Mod) of
	{ok,TestDir} ->
	    %% send a start_make notification which may suspend
	    %% the process if some other node is compiling files
	    %% in the same directory
	    ct_event:sync_notify(#event{name=start_make,
					node=node(),
					data=TestDir}),
	    {ok,Cwd} = file:get_cwd(),
	    ok = file:set_cwd(TestDir),
	    TestServerInclude = get_dir(test_server, "include"),
	    CtInclude = get_dir(common_test, "include"),
	    XmerlInclude = get_dir(xmerl, "include"),
	    ErlFlags = UserInclude ++ [{i,TestServerInclude},
				       {i,CtInclude},
				       {i,XmerlInclude},
				       debug_info],
	    Result = 
		if Mod == all ; Targets == helpmods ->
			case (catch ct_make:all([noexec|ErlFlags])) of
			    {'EXIT',_} = Failure -> 
				Failure;
			    MakeInfo ->
				FileTest = fun(F, suites) -> is_suite(F);
					      (F, helpmods) -> not is_suite(F)
					   end,
				Files = lists:flatmap(fun({F,out_of_date}) ->
							      case FileTest(F, Targets) of
								  true -> [F];
								  false -> []
							      end;
							 (_) ->
							      []
						      end, MakeInfo),
				(catch ct_make:files(Files, [load|ErlFlags]))
			end;
		   true ->
			(catch ct_make:files([Mod], [load|ErlFlags]))
		end,
	    
	    ok = file:set_cwd(Cwd),
	    %% send finished_make notification
	    ct_event:notify(#event{name=finished_make,
				   node=node(),
				   data=TestDir}),
	    case Result of
		{up_to_date,_} ->
		    ok;
		{'EXIT',Reason} ->
		    io:format("{error,{make_crashed,~p}\n", [Reason]),
		    {error,{make_crashed,TestDir,Reason}};
		{error,ModInfo} ->
		    io:format("{error,make_failed}\n", []),
		    Bad = [filename:join(TestDir, M) || {M,R} <- ModInfo, 
							R == error],
		    {error,{make_failed,Bad}}
	    end;
	{error,_} ->
	    io:format("{error,{invalid_directory,~p}}\n", [TestDir0]),
	    {error,{invalid_directory,TestDir0}}
    end.

get_dir(App, Dir) ->
    filename:join(code:lib_dir(App), Dir).

maybe_interpret(Suite, Cases, [{step,StepOpts}]) ->
    %% if other suite has run before this one, check if last testcase 
    %% has left a "dead" trace window behind, and if so, kill it
    case ct_util:get_testdata(interpret) of
	{_What,kill,{TCPid,AttPid}} ->
	    ct_util:kill_attached(TCPid, AttPid);
	_ ->
	    ok
    end,
    maybe_interpret1(Suite, Cases, StepOpts);
maybe_interpret(_, _, _) ->
    ok.

maybe_interpret1(Suite, all, StepOpts) ->
    case i:ii(Suite) of
	{module,_} ->
	    i:iaa([break]),
	    case get_all_testcases(Suite) of
		{error,_} ->
		    {error,no_testcases_found};
		Cases ->
		    maybe_interpret2(Suite, Cases, StepOpts)
	    end;
	error ->
	    {error,could_not_interpret_module}
    end;
maybe_interpret1(Suite, Case, StepOpts) when is_atom(Case) ->
    maybe_interpret1(Suite, [Case], StepOpts);
maybe_interpret1(Suite, Cases, StepOpts) when is_list(Cases) ->
    case i:ii(Suite) of
	{module,_} ->
	    i:iaa([break]),
	    maybe_interpret2(Suite, Cases, StepOpts);
	error ->
	    {error,could_not_interpret_module}
    end.

maybe_interpret2(Suite, Cases, StepOpts) ->
    set_break_on_config(Suite, StepOpts),
    [i:ib(Suite, Case, 1) || Case <- Cases],
    test_server_ctrl:multiply_timetraps(infinity),
    WinOp = case lists:member(keep_inactive, ensure_atom(StepOpts)) of
		true -> no_kill;
		false -> kill
	    end,		    
    ct_util:set_testdata({interpret,{{Suite,Cases},WinOp,
				     {undefined,undefined}}}),
    ok.

set_break_on_config(Suite, StepOpts) ->
    case lists:member(config, ensure_atom(StepOpts)) of
	true ->
	    i:ib(Suite, init_per_suite, 1),
	    i:ib(Suite, init_per_testcase, 2),
	    i:ib(Suite, end_per_testcase, 2),
	    i:ib(Suite, end_per_suite, 1);
	false ->
	    ok
    end.

maybe_cleanup_interpret(Suite, [{step,_}]) ->
    i:iq(Suite);
maybe_cleanup_interpret(_, _) ->
    ok.

log_ts_names(Args) ->
    case lists:keysearch(spec, 1, Args) of
	{value,{_,Specs}} ->
	    List = lists:map(fun(Name) ->
				     Name ++ " "
			     end, Specs),
	    ct_logs:log("Test Specification file(s)", "~s",
			[lists:flatten(List)]);
	_ ->
	    ok
    end.
			  
merge_arguments(Args) ->
    merge_arguments(Args, []).

merge_arguments([LogDir={logdir,_}|Args], Merged) ->
    merge_arguments(Args, handle_arg(replace, LogDir, Merged));
merge_arguments([CoverFile={cover,_}|Args], Merged) ->
    merge_arguments(Args, handle_arg(replace, CoverFile, Merged));
merge_arguments([Arg={_,_}|Args], Merged) ->
    merge_arguments(Args, handle_arg(merge, Arg, Merged));
merge_arguments([], Merged) ->
    Merged.

handle_arg(replace, {Key,Elems}, [{Key,_}|Merged]) ->
    [{Key,Elems}|Merged];
handle_arg(merge, {Key,Elems}, [{Key,PrevElems}|Merged]) ->
    [{Key,PrevElems++Elems}|Merged];
handle_arg(Op, Arg, [Other|Merged]) ->
    [Other|handle_arg(Op, Arg, Merged)];
handle_arg(_,Arg,[]) ->
    [Arg].

locate_test_dir(Dir, Suite) ->
    TestDir = case ct_util:is_test_dir(Dir) of
		  true  -> Dir;
		  false -> ct_util:get_testdir(Dir, Suite)
	      end,
    case filelib:is_dir(TestDir) of
	true  -> {ok,TestDir};
	false -> {error,invalid}
    end.

is_suite(Mod) when is_atom(Mod) ->
    is_suite(atom_to_list(Mod));
is_suite(ModOrFile) when is_list(ModOrFile) ->
    case lists:reverse(filename:basename(ModOrFile, ".erl")) of
	[$E,$T,$I,$U,$S,$_|_] ->
	    true;
	_ ->
	    case lists:reverse(filename:basename(ModOrFile, ".beam")) of
		[$E,$T,$I,$U,$S,$_|_] ->
		    true;
		_ ->
		    false
	    end
    end.

get_all_testcases(Suite) ->
    %%! this needs to be updated to handle testcase groups later!!
    case catch Suite:all() of
	{'EXIT',Why} ->
	    {error,Why};
	{skip,_} ->
	    [];
	Cases ->
	    AllCases =
		lists:foldl(fun({sequence,SeqName}, All) ->
				    case catch Suite:sequences() of
					{'EXIT',_} ->
					    All;
					Seqs ->
					    case proplists:get_value(SeqName, Seqs) of
						undefined ->
						    All;
						SeqCases ->
						    lists:reverse(SeqCases) ++ All
					    end
				    end;
			       (Case,All) ->
				    [Case|All]
			    end, [], Cases),
	    lists:reverse(AllCases)
    end.
					

%% Internal tracing support. If {ct_trace,TraceSpec} is present, the
%% TraceSpec file will be consulted and dbg used to trace function
%% calls during test run. Expected terms in TraceSpec:
%% {m,Mod} or {f,Mod,Func}.
start_trace(Args) ->
    case lists:keysearch(ct_trace,1,Args) of
	{value,{ct_trace,File}} ->
	    TraceSpec = delistify(File),
	    case file:consult(TraceSpec) of
		{ok,Terms} ->
		    case catch do_trace(Terms) of
			ok -> 
			    true;
			{_,Error} ->
			    io:format("Warning! Tracing not started. Reason: ~p~n~n",
				      [Error]),
			    false
		    end;		           
		{_,Error} ->
		    io:format("Warning! Tracing not started. Reason: ~p~n~n",
			      [Error]),
		    false
	    end;	    			
	false ->
	    false		
    end.

do_trace(Terms) ->
    dbg:tracer(),
    dbg:p(self(), [sos,call]),
    lists:foreach(fun({m,M}) ->
			  case dbg:tpl(M,[{'_',[],[{return_trace}]}]) of
			      {error,What} -> exit({error,{tracing_failed,What}});
			      _ -> ok
			  end;			  
		     ({f,M,F}) ->
			  case dbg:tpl(M,F,[{'_',[],[{return_trace}]}]) of
			      {error,What} -> exit({error,{tracing_failed,What}});
			      _ -> ok
			  end;			  
		     (Huh) ->
			  exit({error,{unrecognized_trace_term,Huh}})
		  end, Terms),
    ok.
			 
stop_trace(true) ->
    dbg:stop_clear();
stop_trace(false) ->
    ok.
    
ensure_atom(Atom) when is_atom(Atom) ->
    Atom;
ensure_atom(String) when is_list(String), is_integer(hd(String)) ->
    list_to_atom(String);
ensure_atom(List) when is_list(List) ->
    [ensure_atom(Item) || Item <- List];
ensure_atom(Other) ->				
    Other.