diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/kernel/test/pdict_SUITE.erl | 61 |
1 files changed, 60 insertions, 1 deletions
diff --git a/lib/kernel/test/pdict_SUITE.erl b/lib/kernel/test/pdict_SUITE.erl index 6de4ff9f77..b096296fa1 100644 --- a/lib/kernel/test/pdict_SUITE.erl +++ b/lib/kernel/test/pdict_SUITE.erl @@ -32,6 +32,7 @@ -export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1, init_per_group/2,end_per_group/2, + mixed/1, simple/1, complicated/1, heavy/1, simple_all_keys/1, info/1]). -export([init_per_testcase/2, end_per_testcase/2]). -export([other_process/2]). @@ -47,7 +48,8 @@ end_per_testcase(_Case, Config) -> suite() -> [{ct_hooks,[ts_install_cth]}]. all() -> - [simple, complicated, heavy, simple_all_keys, info]. + [simple, complicated, heavy, simple_all_keys, info, + mixed]. groups() -> []. @@ -369,3 +371,60 @@ match_keys(All) -> Ks = lists:sort([K||{K,_}<-All]), Ks = lists:sort(erlang:get_keys()), ok. + + +%% Do random mixed put/erase to test grow/shrink +%% Written for a temporary bug in gc during shrink +mixed(_Config) -> + Rand0 = rand:seed_s(exsplus), + io:format("Random seed = ~p\n\n", [rand:export_seed_s(Rand0)]), + + erts_debug:set_internal_state(available_internal_state, true), + try + C = do_mixed([10,0,100,50,1000,500,600,100,150,1,11,2,30,0], + 0, + array:new(), + 1, + Rand0), + io:format("\nDid total of ~p operations\n", [C]) + after + erts_debug:set_internal_state(available_internal_state, false) + end. + +do_mixed([], _, _, C, _) -> + C; +do_mixed([GoalN | Tail], GoalN, Array, C, Rand0) -> + io:format("Reached goal of ~p keys in dict after ~p mixed ops\n",[GoalN, C]), + GoalN = array:size(Array), + do_mixed(Tail, GoalN, Array, C, Rand0); +do_mixed([GoalN | _]=Goals, CurrN, Array0, C, Rand0) -> + CurrN = array:size(Array0), + GrowPercent = case GoalN > CurrN of + true when CurrN == 0 -> 100; + true -> 75; + false -> 25 + end, + {R, Rand1} = rand:uniform_s(100, Rand0), + case R of + _ when R =< GrowPercent -> %%%%%%%%%%%%% GROW + {Key, Rand2} = rand:uniform_s(10000, Rand1), + case put(Key, {Key,C}) of + undefined -> + Array1 = array:set(CurrN, Key, Array0), + do_mixed(Goals, CurrN+1, Array1, C+1, Rand2); + _ -> + do_mixed(Goals, CurrN, Array0, C+1, Rand2) + end; + + _ -> %%%%%%%%%% SHRINK + {Kix, Rand2} = rand:uniform_s(CurrN, Rand1), + Key = array:get(Kix-1, Array0), + + %% provoke GC during shrink + erts_debug:set_internal_state(fill_heap, true), + + {Key, _} = erase(Key), + Array1 = array:set(Kix-1, array:get(CurrN-1, Array0), Array0), + Array2 = array:resize(CurrN-1, Array1), + do_mixed(Goals, CurrN-1, Array2, C+1, Rand2) + end. |