[ct] Add {testcase,TC,RepeatProps} syntax for repeating test cases

3 files changed, 525 insertions, 1 deletions

diff --git a/lib/common_test/test/Makefile b/lib/common_test/test/Makefile
index ecd1f727a2..31f75e9f6b 100644
--- a/lib/common_test/test/Makefile
+++ b/lib/common_test/test/Makefile
@@ -74,7 +74,8 @@ MODULES= \
         ct_SUITE \
 	ct_keep_logs_SUITE \
 	ct_unicode_SUITE \
-	ct_auto_clean_SUITE
+	ct_auto_clean_SUITE \
+	ct_tc_repeat_SUITE
 
 ERL_FILES= $(MODULES:%=%.erl)
 HRL_FILES= test_server_test_lib.hrl
diff --git a/lib/common_test/test/ct_tc_repeat_SUITE.erl b/lib/common_test/test/ct_tc_repeat_SUITE.erl
new file mode 100644
index 0000000000..433b5456fe
--- /dev/null
+++ b/lib/common_test/test/ct_tc_repeat_SUITE.erl
@@ -0,0 +1,438 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2009-2017. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%%     http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+-module(ct_tc_repeat_SUITE).
+
+-compile(export_all).
+
+-include_lib("common_test/include/ct.hrl").
+-include_lib("common_test/include/ct_event.hrl").
+
+-define(eh, ct_test_support_eh).
+
+%%--------------------------------------------------------------------
+%% TEST SERVER CALLBACK FUNCTIONS
+%%--------------------------------------------------------------------
+
+%%--------------------------------------------------------------------
+%% Description: Since Common Test starts another Test Server
+%% instance, the tests need to be performed on a separate node (or
+%% there will be clashes with logging processes etc).
+%%--------------------------------------------------------------------
+init_per_suite(Config) ->
+    DataDir = ?config(data_dir, Config),
+    ct_test_support:init_per_suite([{path_dirs,[DataDir]} | Config]).
+
+end_per_suite(Config) ->
+    ct_test_support:end_per_suite(Config).
+
+init_per_testcase(TestCase, Config) ->
+    ct_test_support:init_per_testcase(TestCase, Config).
+
+end_per_testcase(TestCase, Config) ->
+    ct_test_support:end_per_testcase(TestCase, Config).
+
+
+suite() ->
+    [{timetrap,{minutes,1}}].
+
+all() ->
+    all(suite).
+
+all(suite) ->
+      [
+       repeat,
+       repeat_parallel_until_ok,
+       repeat_parallel_until_fail,
+       repeat_sequence_until_ok,
+       repeat_sequence_until_fail,
+       pick_one_test_from_group,
+       pick_one_test_from_subgroup
+      ].
+
+
+%%--------------------------------------------------------------------
+%% TEST CASES
+%%--------------------------------------------------------------------
+
+%%%-----------------------------------------------------------------
+%%% 
+%% Test post_groups and post_all hook callbacks, introduced by OTP-14746
+repeat(Config) ->
+    ok = do_test(?FUNCTION_NAME, "tc_repeat_SUITE", [], [], Config).
+
+repeat_parallel_until_ok(Config) ->
+    {error,{{illegal_combination,{parallel,repeat_until_ok}},_}} =
+        do_test(?FUNCTION_NAME, "tc_repeat_SUITE", [{group,g_parallel_until_ok}],
+                [], Config, 1, []).
+
+repeat_parallel_until_fail(Config) ->
+    {error,{{illegal_combination,{parallel,repeat_until_fail}},_}} =
+        do_test(?FUNCTION_NAME, "tc_repeat_SUITE", [{group,g_parallel_until_fail}],
+                [], Config, 1, []).
+
+repeat_sequence_until_ok(Config) ->
+    {error,{{illegal_combination,{sequence,repeat_until_ok}},_}} =
+        do_test(?FUNCTION_NAME, "tc_repeat_SUITE", [{group,g_sequence_until_ok}],
+                [], Config, 1, []).
+
+repeat_sequence_until_fail(Config) ->
+    {error,{{illegal_combination,{sequence,repeat_until_fail}},_}} =
+        do_test(?FUNCTION_NAME, "tc_repeat_SUITE", [{group,g_sequence_until_fail}],
+                [], Config, 1, []).
+
+pick_one_test_from_group(Config) ->
+    do_test(?FUNCTION_NAME, "tc_repeat_SUITE", [{group,g_mixed},{testcase,tc2}],
+            [], Config, 1, []).
+    
+pick_one_test_from_subgroup(Config) ->
+    do_test(?FUNCTION_NAME, "tc_repeat_SUITE",
+            [{group,[[g_mixed,subgroup]]},{testcase,tc2}],
+            [], Config, 1, []).
+    
+
+%%%-----------------------------------------------------------------
+%%% HELP FUNCTIONS
+%%%-----------------------------------------------------------------
+
+do_test(Tag, Suite, WTT, CTHs, Config) ->
+    do_test(Tag, Suite, WTT, CTHs, Config, 2, []).
+
+do_test(Tag, Suite0, WTT, CTHs, Config, EC, ExtraOpts) ->
+    DataDir = ?config(data_dir, Config),
+    Suite = filename:join([DataDir,Suite0]),
+    {Opts,ERPid} =
+        setup([{suite,Suite}|WTT]++[{ct_hooks,CTHs},{label,Tag}|ExtraOpts],
+              Config),
+    Res = ct_test_support:run(Opts, Config),
+    Events = ct_test_support:get_events(ERPid, Config),
+    %% io:format("~p~n",[Events]),
+
+    ct_test_support:log_events(Tag,
+			       reformat(Events, ?eh),
+			       ?config(priv_dir, Config),
+			       Opts),
+
+    TestEvents = events_to_check(Tag, EC),
+    ok = ct_test_support:verify_events(TestEvents, Events, Config),
+    Res.
+
+setup(Test, Config) ->
+    Opts0 = ct_test_support:get_opts(Config),
+    Level = ?config(trace_level, Config),
+    EvHArgs = [{cbm,ct_test_support},{trace_level,Level}],
+    Opts = Opts0 ++ [{event_handler,{?eh,EvHArgs}}|Test],
+    ERPid = ct_test_support:start_event_receiver(Config),
+    {Opts,ERPid}.
+
+reformat(Events, EH) ->
+    ct_test_support:reformat(Events, EH).
+
+gen_config(Name,KeyVals,Config) ->
+    PrivDir = ?config(priv_dir,Config),
+    File = filename:join(PrivDir,atom_to_list(Name)++".cfg"),
+    ok = file:write_file(File,[io_lib:format("~p.~n",[{Key,Value}])
+                               || {Key,Value} <- KeyVals]),
+    File.
+
+%%%-----------------------------------------------------------------
+%%% TEST EVENTS
+%%%-----------------------------------------------------------------
+events_to_check(Test) ->
+    %% 2 tests (ct:run_test + script_start) is default
+    events_to_check(Test, 2).
+
+events_to_check(_, 0) ->
+    [];
+events_to_check(Test, N) ->
+    test_events(Test) ++ events_to_check(Test, N-1).
+
+test_events(repeat) ->
+    S = tc_repeat_SUITE,
+    [
+     {?eh,start_logging,{'DEF','RUNDIR'}},
+     {?eh,test_start,{'DEF',{'START_TIME','LOGDIR'}}},
+     {?eh,start_info,{1,1,unknown}},
+
+     %% tc1, {repeat,2}
+     {?eh,tc_start,{S,tc1}},
+     {?eh,tc_done,{S,tc1,ok}},
+     {?eh,test_stats,{1,0,{0,0}}},
+     {?eh,tc_start,{S,tc1}},
+     {?eh,tc_done,{S,tc1,ok}},
+     {?eh,test_stats,{2,0,{0,0}}},
+     %% tc2, {repeat_until_ok,3}
+     {?eh,tc_start,{S,tc2}},
+     {?eh,tc_done,{S,tc2,ok}},
+     {?eh,test_stats,{3,0,{0,0}}},
+     %% tc3, {repeat_until_ok,3}
+     {?eh,tc_start,{S,tc3}},
+     {?eh,tc_done,{tc_repeat_SUITE,tc3,
+                   {failed,{error,{test_case_failed,always_fail}}}}},
+     {?eh,test_stats,{3,1,{0,0}}},
+     {?eh,tc_start,{S,tc3}},
+     {?eh,tc_done,{S,tc3,{failed,{error,{test_case_failed,always_fail}}}}},
+     {?eh,test_stats,{3,2,{0,0}}},
+     {?eh,tc_start,{S,tc3}},
+     {?eh,tc_done,{S,tc3,{failed,{error,{test_case_failed,always_fail}}}}},
+     {?eh,test_stats,{3,3,{0,0}}},
+     %% tc4, {repeat_until_fail,3}
+     {?eh,tc_start,{S,tc4}},
+     {?eh,tc_done,{S,tc4,ok}},
+     {?eh,test_stats,{4,3,{0,0}}},
+     {?eh,tc_start,{S,tc4}},
+     {?eh,tc_done,{S,tc4,{failed,{error,{test_case_failed,second_time_fail}}}}},
+     {?eh,test_stats,{4,4,{0,0}}},
+     %% g, tc1, {repeat,2}
+     {?eh,tc_start,{S,{init_per_group,g,[]}}},
+     {?eh,tc_done,{S,{init_per_group,g,[]},ok}},
+     {?eh,tc_start,{S,tc1}},
+     {?eh,tc_done,{S,tc1,ok}},
+     {?eh,test_stats,{5,4,{0,0}}},
+     {?eh,tc_start,{S,tc1}},
+     {?eh,tc_done,{S,tc1,ok}},
+     {?eh,test_stats,{6,4,{0,0}}},
+     {?eh,tc_start,{S,{end_per_group,g,[]}}},
+     {?eh,tc_done,{S,{end_per_group,g,[]},ok}},
+     %% g_until_ok, tc2, {repeat_until_ok,3}
+     {?eh,tc_start,{S,{init_per_group,g_until_ok,[]}}},
+     {?eh,tc_done,{S,{init_per_group,g_until_ok,[]},ok}},
+     {?eh,tc_start,{S,tc2}},
+     {?eh,tc_done,{S,tc2,ok}},
+     {?eh,test_stats,{7,4,{0,0}}},
+     {?eh,tc_start,{S,{end_per_group,g_until_ok,[]}}},
+     {?eh,tc_done,{S,{end_per_group,g_until_ok,[]},ok}},
+     %% g_until_fail, tc4, {repeat_until_fail,3}
+     {?eh,tc_start,{S,{init_per_group,g_until_fail,[]}}},
+     {?eh,tc_done,{S,{init_per_group,g_until_fail,[]},ok}},
+     {?eh,tc_start,{S,tc4}},
+     {?eh,tc_done,{S,tc4,ok}},
+     {?eh,test_stats,{8,4,{0,0}}},
+     {?eh,tc_start,{S,tc4}},
+     {?eh,tc_done,{S,tc4,{failed,{error,{test_case_failed,second_time_fail}}}}},
+     {?eh,test_stats,{8,5,{0,0}}},
+     {?eh,tc_start,{S,{end_per_group,g_until_fail,[]}}},
+     {?eh,tc_done,{S,{end_per_group,g_until_fail,[]},ok}},
+     %% g, parallel, tc1, {repeat,2}
+     {parallel,
+      [{?eh,tc_start,{S,{init_per_group,g,[parallel]}}},
+       {?eh,tc_done,{S,{init_per_group,g,[parallel]},ok}},
+       {?eh,tc_start,{S,tc1}},
+       {?eh,tc_done,{S,tc1,ok}},
+       {?eh,test_stats,{9,5,{0,0}}},
+       {?eh,tc_start,{S,tc1}},
+       {?eh,tc_done,{S,tc1,ok}},
+       {?eh,test_stats,{10,5,{0,0}}},
+       {?eh,tc_start,{S,{end_per_group,g,[parallel]}}},
+       {?eh,tc_done,{S,{end_per_group,g,[parallel]},ok}}]},
+     %% g, sequence, tc1, {repeat,2}
+     {?eh,tc_start,{S,{init_per_group,g,[sequence]}}},
+     {?eh,tc_done,{S,{init_per_group,g,[sequence]},ok}},
+     {?eh,tc_start,{S,tc1}},
+     {?eh,tc_done,{S,tc1,ok}},
+     {?eh,test_stats,{11,5,{0,0}}},
+     {?eh,tc_start,{S,tc1}},
+     {?eh,tc_done,{S,tc1,ok}},
+     {?eh,test_stats,{12,5,{0,0}}},
+     {?eh,tc_start,{S,{end_per_group,g,[sequence]}}},
+     {?eh,tc_done,{S,{end_per_group,g,[sequence]},ok}},
+     %% g_sequence_skip_rest, 
+     {?eh,tc_start,{S,{init_per_group,g_mixed,[sequence]}}},
+     {?eh,tc_done,{S,{init_per_group,g_mixed,[sequence]},ok}},
+     {?eh,tc_start,{S,tc1}},
+     {?eh,tc_done,{S,tc1,ok}},
+     {?eh,test_stats,{13,5,{0,0}}},
+     {?eh,tc_start,{S,tc1}},
+     {?eh,tc_done,{S,tc1,ok}},
+     {?eh,test_stats,{14,5,{0,0}}},
+     {?eh,tc_start,{S,tc4}},
+     {?eh,tc_done,{S,tc4,ok}},
+     {?eh,test_stats,{15,5,{0,0}}},
+     {?eh,tc_start,{S,tc4}},
+     {?eh,tc_done,{S,tc4,{failed,{error,{test_case_failed,second_time_fail}}}}},
+     {?eh,test_stats,{15,6,{0,0}}},
+     %% ----> fail in sequence, so skip rest
+     {?eh,tc_auto_skip,{S,{tc4,g_mixed}, % last of current repeat tc4
+                        {failed,{tc_repeat_SUITE,tc4}}}},
+     {?eh,test_stats,{15,6,{0,1}}},
+     {?eh,tc_auto_skip,{S,{tc1,g_mixed}, % single tc1
+                        {failed,{tc_repeat_SUITE,tc4}}}},
+     {?eh,test_stats,{15,6,{0,2}}},
+     {?eh,tc_auto_skip,{S,{tc1,g}, % group g, tc1, {repeat,2}
+                        {failed,{tc_repeat_SUITE,tc4}}}},
+     {?eh,test_stats,{15,6,{0,3}}},
+     {?eh,tc_auto_skip,{S,{tc1,subgroup}, % subgroup, single tc1
+                        {failed,{tc_repeat_SUITE,tc4}}}},
+     {?eh,test_stats,{15,6,{0,4}}},
+     {?eh,tc_auto_skip,{S,{tc2,subgroup}, % subgroup, tc2, {repeat,2}
+                        {failed,{tc_repeat_SUITE,tc4}}}},
+     {?eh,test_stats,{15,6,{0,5}}},
+     {?eh,tc_auto_skip,{S,{tc2,g_mixed}, % tc2, {repeat,2}
+                        {failed,{tc_repeat_SUITE,tc4}}}},
+     {?eh,test_stats,{15,6,{0,6}}},
+     {?eh,tc_auto_skip,{S,{tc2,g_mixed}, % single tc2
+                        {failed,{tc_repeat_SUITE,tc4}}}},
+     {?eh,test_stats,{15,6,{0,7}}},
+     {?eh,tc_auto_skip,{S,{tc1,g_mixed}, % tc1, {repeat,2}
+                        {failed,{tc_repeat_SUITE,tc4}}}},
+     {?eh,test_stats,{15,6,{0,8}}},
+     {?eh,tc_auto_skip,{S,{tc1,g_mixed}, % single tc1
+                        {failed,{tc_repeat_SUITE,tc4}}}},
+     {?eh,test_stats,{15,6,{0,9}}},
+     {?eh,tc_start,{S,{end_per_group,g_mixed,'_'}}},
+     {?eh,tc_done,{S,{end_per_group,g_mixed,'_'},ok}},
+     %% done
+     {?eh,test_done,{'DEF','STOP_TIME'}},
+     {?eh,stop_logging,[]}
+    ];
+
+test_events(repeat_parallel_until_ok) ->
+    [
+     {?eh,start_logging,{'DEF','RUNDIR'}},
+     {?eh,test_start,{'DEF',{'START_TIME','LOGDIR'}}},
+     {?eh,tc_start,{'_',{init_per_group,g_parallel_until_ok,[parallel]}}},
+     {?eh,tc_done,{'_',{init_per_group,g_parallel_until_ok,[parallel]},ok}},
+     {?eh,severe_error,{{illegal_combination,{parallel,repeat_until_ok}},'_'}},
+     {?eh,test_done,{'DEF','STOP_TIME'}},
+     {?eh,stop_logging,[]}
+    ];
+
+test_events(repeat_parallel_until_fail) ->
+    [
+     {?eh,start_logging,{'DEF','RUNDIR'}},
+     {?eh,test_start,{'DEF',{'START_TIME','LOGDIR'}}},
+     {?eh,tc_start,{'_',{init_per_group,g_parallel_until_fail,[parallel]}}},
+     {?eh,tc_done,{'_',{init_per_group,g_parallel_until_fail,[parallel]},ok}},
+     {?eh,severe_error,{{illegal_combination,{parallel,repeat_until_fail}},'_'}},
+     {?eh,test_done,{'DEF','STOP_TIME'}},
+     {?eh,stop_logging,[]}
+    ];
+
+test_events(repeat_sequence_until_ok) ->
+    [
+     {?eh,start_logging,{'DEF','RUNDIR'}},
+     {?eh,test_start,{'DEF',{'START_TIME','LOGDIR'}}},
+     {?eh,tc_start,{'_',{init_per_group,g_sequence_until_ok,[sequence]}}},
+     {?eh,tc_done,{'_',{init_per_group,g_sequence_until_ok,[sequence]},ok}},
+     {?eh,severe_error,{{illegal_combination,{sequence,repeat_until_ok}},'_'}},
+     {?eh,test_done,{'DEF','STOP_TIME'}},
+     {?eh,stop_logging,[]}
+    ];
+
+test_events(repeat_sequence_until_fail) ->
+    [
+     {?eh,start_logging,{'DEF','RUNDIR'}},
+     {?eh,test_start,{'DEF',{'START_TIME','LOGDIR'}}},
+     {?eh,tc_start,{'_',{init_per_group,g_sequence_until_fail,[sequence]}}},
+     {?eh,tc_done,{'_',{init_per_group,g_sequence_until_fail,[sequence]},ok}},
+     {?eh,severe_error,{{illegal_combination,{sequence,repeat_until_fail}},'_'}},
+     {?eh,test_done,{'DEF','STOP_TIME'}},
+     {?eh,stop_logging,[]}
+    ];
+
+test_events(pick_one_test_from_group) ->
+    [
+     {?eh,start_logging,{'DEF','RUNDIR'}},
+     {?eh,test_start,{'DEF',{'START_TIME','LOGDIR'}}},
+     {?eh,tc_start,{'_',{init_per_group,g_mixed,[]}}},
+     {?eh,tc_done,{'_',{init_per_group,g_mixed,[]},ok}},
+     {negative,
+      {?eh,tc_start,{'_',tc1}},
+      {?eh,tc_start,{'_',tc2}}}, % single tc2
+     {?eh,tc_done,{'_',tc2,ok}},
+     {?eh,tc_start,{'_',tc2}}, % tc2, {repeat,2}
+     {?eh,tc_done,{'_',tc2,ok}},
+     {?eh,tc_start,{'_',tc2}},
+     {?eh,tc_done,{'_',tc2,ok}},
+     {negative,
+      {?eh,tc_start,{'_',tc1}},
+      {?eh,tc_start,{'_',{end_per_group,g_mixed,[]}}}},
+     {?eh,tc_done,{'_',{end_per_group,g_mixed,[]},ok}},
+     {?eh,test_done,{'DEF','STOP_TIME'}},
+     {?eh,stop_logging,[]}
+    ];
+
+test_events(pick_one_test_from_subgroup) ->
+    [
+     {?eh,start_logging,{'DEF','RUNDIR'}},
+     {?eh,test_start,{'DEF',{'START_TIME','LOGDIR'}}},
+     {?eh,tc_start,{'_',{init_per_group,g_mixed,[]}}},
+     {?eh,tc_done,{'_',{init_per_group,g_mixed,[]},ok}},
+     {negative,
+      {?eh,tc_start,{'_',tc2}},
+      {?eh,tc_start,{'_',{init_per_group,subgroup,[]}}}},
+     {?eh,tc_done,{'_',{init_per_group,subgroup,[]},ok}},
+     {negative,
+      {?eh,tc_start,{'_',tc1}},
+      {?eh,tc_start,{'_',tc2}}}, % tc2, {repeat,2}
+     {?eh,tc_done,{'_',tc2,ok}},
+     {?eh,tc_start,{'_',tc2}},
+     {?eh,tc_done,{'_',tc2,ok}},
+     {negative,
+      {?eh,tc_start,{'_',tc1}},
+      {?eh,tc_start,{'_',{end_per_group,subgroup,[]}}}},
+     {?eh,tc_done,{'_',{end_per_group,subgroup,[]},ok}},
+     {negative,
+      {?eh,tc_start,{'_',tc2}},
+      {?eh,tc_start,{'_',{end_per_group,g_mixed,[]}}}},
+     {?eh,tc_done,{'_',{end_per_group,g_mixed,[]},ok}},
+     {?eh,test_done,{'DEF','STOP_TIME'}},
+     {?eh,stop_logging,[]}
+    ];
+
+test_events(ok) ->
+    ok.
+
+%% test events help functions
+contains(List) ->
+    fun(Proplist) when is_list(Proplist) ->
+	    contains(List,Proplist)
+    end.
+
+contains([{not_in_order,List}|T],Rest) ->
+    contains_parallel(List,Rest),
+    contains(T,Rest);
+contains([{Ele,Pos}|T] = L,[H|T2]) ->
+    case element(Pos,H) of
+	Ele ->
+	    contains(T,T2);
+	_ ->
+	    contains(L,T2)
+    end;
+contains([Ele|T],[{Ele,_}|T2])->
+    contains(T,T2);
+contains([Ele|T],[Ele|T2])->
+    contains(T,T2);
+contains(List,[_|T]) ->
+    contains(List,T);
+contains([],_) ->
+    match.
+
+contains_parallel([Key | T], Elems) ->
+    contains([Key],Elems),
+    contains_parallel(T,Elems);
+contains_parallel([],_Elems) ->
+    match.
+
+not_contains(List) ->
+    fun(Proplist) when is_list(Proplist) ->
+	    [] = [Ele || {Ele,_} <- Proplist,
+			 Test <- List,
+			 Test =:= Ele]
+    end.
diff --git a/lib/common_test/test/ct_tc_repeat_SUITE_data/tc_repeat_SUITE.erl b/lib/common_test/test/ct_tc_repeat_SUITE_data/tc_repeat_SUITE.erl
new file mode 100644
index 0000000000..f5d960d12f
--- /dev/null
+++ b/lib/common_test/test/ct_tc_repeat_SUITE_data/tc_repeat_SUITE.erl
@@ -0,0 +1,85 @@
+%%
+%% %CopyrightBegin%
+%%
+%% Copyright Ericsson AB 2010-2017. All Rights Reserved.
+%%
+%% Licensed under the Apache License, Version 2.0 (the "License");
+%% you may not use this file except in compliance with the License.
+%% You may obtain a copy of the License at
+%%
+%%     http://www.apache.org/licenses/LICENSE-2.0
+%%
+%% Unless required by applicable law or agreed to in writing, software
+%% distributed under the License is distributed on an "AS IS" BASIS,
+%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+%% See the License for the specific language governing permissions and
+%% limitations under the License.
+%%
+%% %CopyrightEnd%
+%%
+
+-module(tc_repeat_SUITE).
+
+-suite_defaults([{timetrap, {minutes, 10}}]).
+
+%% Note: This directive should only be used in test suites.
+-compile(export_all).
+
+-include("ct.hrl").
+
+init_per_group(_Group,Config) ->
+    Config.
+
+end_per_group(_Group,Config) ->
+    ok.
+
+all() ->
+    [{testcase,tc1,[{repeat,2}]},
+     {testcase,tc2,[{repeat_until_ok,3}]},
+     {testcase,tc3,[{repeat_until_ok,3}]},
+     {testcase,tc4,[{repeat_until_fail,3}]},
+     {group,g},
+     {group,g_until_ok},
+     {group,g_until_fail},
+     {group,g,[parallel]},
+     {group,g,[sequence]},
+     {group,g_mixed,[sequence]}].
+
+groups() ->
+    [{g,[{testcase,tc1,[{repeat,2}]}]},
+     {g_until_ok,[{testcase,tc2,[{repeat_until_ok,3}]}]},
+     {g_until_fail,[{testcase,tc4,[{repeat_until_fail,3}]}]},
+     {g_parallel_until_ok,[parallel],[{testcase,tc2,[{repeat_until_ok,3}]}]},
+     {g_parallel_until_fail,[parallel],[{testcase,tc1,[{repeat_until_fail,2}]}]},
+     {g_sequence_until_ok,[sequence],[{testcase,tc2,[{repeat_until_ok,3}]}]},
+     {g_sequence_until_fail,[sequence],[{testcase,tc1,[{repeat_until_fail,2}]}]},
+     {g_mixed,[{testcase,tc1,[{repeat,2}]},
+               {testcase,tc4,[{repeat,3}]},
+               tc1,
+               {group,g},
+               {subgroup,[tc1,{testcase,tc2,[{repeat,2}]}]},
+               {testcase,tc2,[{repeat,2}]},
+               tc2,
+               {testcase,tc1,[{repeat,2}]},
+               tc1]}].
+
+%% Test cases starts here.
+tc1(_Config) ->
+    ok.
+
+tc2(_Config) ->
+    ok.
+
+tc3(_Config) ->
+    ct:fail(always_fail).
+
+tc4(Config) ->
+    case ?config(saved_config,Config) of
+        {tc4,_} ->
+            ct:fail(second_time_fail);
+        undefined ->
+            {save_config,Config}
+    end.
+
+tc5(_Config) ->
+    {skip,"just skip this"}.