diff options
Diffstat (limited to 'lib/stdlib/test')
| -rw-r--r-- | lib/stdlib/test/rand_SUITE.erl | 182 |
1 files changed, 177 insertions, 5 deletions
diff --git a/lib/stdlib/test/rand_SUITE.erl b/lib/stdlib/test/rand_SUITE.erl index 02b7cb10c2..8e7ac223a7 100644 --- a/lib/stdlib/test/rand_SUITE.erl +++ b/lib/stdlib/test/rand_SUITE.erl @@ -28,7 +28,8 @@ api_eq/1, reference/1, basic_stats_uniform_1/1, basic_stats_uniform_2/1, basic_stats_normal/1, - plugin/1, measure/1]). + plugin/1, measure/1, + reference_jump_state/1, reference_jump_procdict/1]). -export([test/0, gen/1]). @@ -45,14 +46,21 @@ all() -> api_eq, reference, {group, basic_stats}, - plugin, measure]. + plugin, measure, + {group, reference_jump} + ]. groups() -> [{basic_stats, [parallel], - [basic_stats_uniform_1, basic_stats_uniform_2, basic_stats_normal]}]. + [basic_stats_uniform_1, basic_stats_uniform_2, basic_stats_normal]}, + {reference_jump, [parallel], + [reference_jump_state, reference_jump_procdict]}]. group(basic_stats) -> %% valgrind needs a lot of time + [{timetrap,{minutes,10}}]; +group(reference_jump) -> + %% valgrind needs a lot of time [{timetrap,{minutes,10}}]. %% A simple helper to test without test_server during dev @@ -228,7 +236,7 @@ interval_float_1(N) -> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -%% Check if exs64 algorithm generates the proper sequence. +%% Check if each algorithm generates the proper sequence. reference(Config) when is_list(Config) -> [reference_1(Alg) || Alg <- algs()], ok. @@ -242,7 +250,7 @@ reference_1(Alg) -> io:format("Failed: ~p~n",[Alg]), io:format("Length ~p ~p~n",[length(Refval), length(Testval)]), io:format("Head ~p ~p~n",[hd(Refval), hd(Testval)]), - ok + exit(wrong_value) end. gen(Algo) -> @@ -434,6 +442,112 @@ measure_2(N, State0, Fun) when N > 0 -> measure_2(0, _, _) -> ok. %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +%% The jump sequence tests has two parts +%% for those with the functional API (jump/1) +%% and for those with the internal state +%% in process dictionary (jump/0). + +-define(LOOP_JUMP, (?LOOP div 1000)). + +%% Check if each algorithm generates the proper jump sequence +%% with the functional API. +reference_jump_state(Config) when is_list(Config) -> + [reference_jump_1(Alg) || Alg <- algs()], + ok. + +reference_jump_1(Alg) -> + Refval = reference_jump_val(Alg), + Testval = gen_jump_1(Alg), + case Refval =:= Testval of + true -> ok; + false -> + io:format("Failed: ~p~n",[Alg]), + io:format("Length ~p ~p~n",[length(Refval), length(Testval)]), + io:format("Head ~p ~p~n",[hd(Refval), hd(Testval)]), + exit(wrong_value) + end. + +gen_jump_1(Algo) -> + Seed = case Algo of + exsplus -> %% Printed with orig 'C' code and this seed + rand:seed_s({exsplus, [12345678|12345678]}); + exs1024 -> %% Printed with orig 'C' code and this seed + rand:seed_s({exs1024, {lists:duplicate(16, 12345678), []}}); + exs64 -> %% Test exception of not_implemented notice + try rand:jump(rand:seed_s(exs64)) + catch + error:not_implemented -> not_implemented + end; + _ -> % unimplemented + not_implemented + end, + case Seed of + not_implemented -> [not_implemented]; + S -> gen_jump_1(?LOOP_JUMP, S, []) + end. + +gen_jump_1(N, State0 = {#{max:=Max}, _}, Acc) when N > 0 -> + {_, State1} = rand:uniform_s(Max, State0), + {Random, State2} = rand:uniform_s(Max, rand:jump(State1)), + case N rem (?LOOP_JUMP div 100) of + 0 -> gen_jump_1(N-1, State2, [Random|Acc]); + _ -> gen_jump_1(N-1, State2, Acc) + end; +gen_jump_1(_, _, Acc) -> lists:reverse(Acc). + +%% Check if each algorithm generates the proper jump sequence +%% with the internal state in the process dictionary. +reference_jump_procdict(Config) when is_list(Config) -> + [reference_jump_0(Alg) || Alg <- algs()], + ok. + +reference_jump_0(Alg) -> + Refval = reference_jump_val(Alg), + Testval = gen_jump_0(Alg), + case Refval =:= Testval of + true -> ok; + false -> + io:format("Failed: ~p~n",[Alg]), + io:format("Length ~p ~p~n",[length(Refval), length(Testval)]), + io:format("Head ~p ~p~n",[hd(Refval), hd(Testval)]), + exit(wrong_value) + end. + +gen_jump_0(Algo) -> + Seed = case Algo of + exsplus -> %% Printed with orig 'C' code and this seed + rand:seed({exsplus, [12345678|12345678]}); + exs1024 -> %% Printed with orig 'C' code and this seed + rand:seed({exs1024, {lists:duplicate(16, 12345678), []}}); + exs64 -> %% Test exception of not_implemented notice + try + _ = rand:seed(exs64), + rand:jump() + catch + error:not_implemented -> not_implemented + end; + _ -> % unimplemented + not_implemented + end, + case Seed of + not_implemented -> [not_implemented]; + S -> + {Seedmap=#{}, _} = S, + Max = maps:get(max, Seedmap), + gen_jump_0(?LOOP_JUMP, Max, []) + end. + +gen_jump_0(N, Max, Acc) when N > 0 -> + _ = rand:uniform(Max), + _ = rand:jump(), + Random = rand:uniform(Max), + case N rem (?LOOP_JUMP div 100) of + 0 -> gen_jump_0(N-1, Max, [Random|Acc]); + _ -> gen_jump_0(N-1, Max, Acc) + end; +gen_jump_0(_, _, Acc) -> lists:reverse(Acc). + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% %%% Data reference_val(exs64) -> [16#3737ad0c703ff6c3,16#3868a78fe71adbbd,16#1f01b62b4338b605,16#50876a917437965f, @@ -515,3 +629,61 @@ reference_val(exsplus) -> 16#36f715a249f4ec2,16#1c27629826c50d3,16#914d9a6648726a,16#27f5bf5ce2301e8, 16#3dd493b8012970f,16#be13bed1e00e5c,16#ceef033b74ae10,16#3da38c6a50abe03, 16#15cbd1a421c7a8c,16#22794e3ec6ef3b1,16#26154d26e7ea99f,16#3a66681359a6ab6]. + +%%% + +reference_jump_val(exsplus) -> + [82445318862816932, 145810727464480743, 16514517716894509, 247642377064868650, + 162385642339156908, 251810707075252101, 82288275771998924, 234412731596926322, + 49960883129071044, 200690077681656596, 213743196668671647, 131182800982967108, + 144200072021941728, 263557425008503277, 194858522616874272, 185869394820993172, + 80384502675241453, 262654144824057588, 90033295011291362, 4494510449302659, + 226005372746479588, 116780561309220553, 47048528594475843, 39168929349768743, + 139615163424415552, 55330632656603925, 237575574720486569, 102381140288455025, + 18452933910354323, 150248612130579752, 269358096791922740, 61313433522002187, + 160327361842676597, 185187983548528938, 57378981505594193, 167510799293984067, + 105117045862954303, 176126685946302943, 123590876906828803, 69185336947273487, + 9098689247665808, 49906154674145057, 131575138412788650, 161843880211677185, + 30743946051071186, 187578920583823612, 45008401528636978, 122454158686456658, + 111195992644229524, 17962783958752862, 13579507636941108, 130137843317798663, + 144202635170576832, 132539563255093922, 159785575703967124, 187241848364816640, + 183044737781926478, 12921559769912263, 83553932242922001, 96698298841984688, + 281664320227537824, 224233030818578263, 77812932110318774, 169729351013291728, + 164475402723178734, 242780633011249051, 51095111179609125, 19249189591963554, + 221412426221439180, 265700202856282653, 265342254311932308, 241218503498385511, + 255400887248486575, 212083616929812076, 227947034485840579, 268261881651571692, + 104846262373404908, 49690734329496661, 213259196633566308, 186966479726202436, + 282157378232384574, 11272948584603747, 166540426999573480, 50628164001018755, + 65235580992800860, 230664399047956956, 64575592354687978, 40519393736078511, + 108341851194332747, 115426411532008961, 120656817002338193, 234537867870809797, + 12504080415362731, 45083100453836317, 270968267812126657, 93505647407734103, + 252852934678537969, 258758309277167202, 74250882143432077, 141629095984552833]; + +reference_jump_val(exs1024) -> + [2655961906500790629, 17003395417078685063, 10466831598958356428, 7603399148503548021, + 1650550950190587188, 12294992315080723704, 15743995773860389219, 5492181000145247327, + 14118165228742583601, 1024386975263610703, 10124872895886669513, 6445624517813169301, + 6238575554686562601, 14108646153524288915, 11804141635807832816, 8421575378006186238, + 6354993374304550369, 838493020029548163, 14759355804308819469, 12212491527912522022, + 16943204735100571602, 198964074252287588, 7325922870779721649, 15853102065526570574, + 16294058349151823341, 6153379962047409781, 15874031679495957261, 17299265255608442340, + 984658421210027171, 17408042033939375278, 3326465916992232353, 5222817718770538733, + 13262385796795170510, 15648751121811336061, 6718721549566546451, 7353765235619801875, + 16110995049882478788, 14559143407227563441, 4189805181268804683, 10938587948346538224, + 1635025506014383478, 12619562911869525411, 17469465615861488695, 125252234176411528, + 2004192558503448853, 13175467866790974840, 17712272336167363518, 1710549840100880318, + 17486892343528340916, 5337910082227550967, 8333082060923612691, 6284787745504163856, + 8072221024586708290, 6077032673910717705, 11495200863352251610, 11722792537523099594, + 14642059504258647996, 8595733246938141113, 17223366528010341891, 17447739753327015776, + 6149800490736735996, 11155866914574313276, 7123864553063709909, 15982886296520662323, + 5775920250955521517, 8624640108274906072, 8652974210855988961, 8715770416136907275, + 11841689528820039868, 10991309078149220415, 11758038663970841716, 7308750055935299261, + 15939068400245256963, 6920341533033919644, 8017706063646646166, 15814376391419160498, + 13529376573221932937, 16749061963269842448, 14639730709921425830, 3265850480169354066, + 4569394597532719321, 16594515239012200038, 13372824240764466517, 16892840440503406128, + 11260004846380394643, 2441660009097834955, 10566922722880085440, 11463315545387550692, + 5252492021914937692, 10404636333478845345, 11109538423683960387, 5525267334484537655, + 17936751184378118743, 4224632875737239207, 15888641556987476199, 9586888813112229805, + 9476861567287505094, 14909536929239540332, 17996844556292992842, 2699310519182298856]; + +reference_jump_val(exs64) -> [not_implemented]. |