diff options
Diffstat (limited to 'lib/stdlib/test/supervisor_SUITE.erl')
| -rw-r--r-- | lib/stdlib/test/supervisor_SUITE.erl | 53 |
1 files changed, 36 insertions, 17 deletions
diff --git a/lib/stdlib/test/supervisor_SUITE.erl b/lib/stdlib/test/supervisor_SUITE.erl index c79a5002fb..b48450c151 100644 --- a/lib/stdlib/test/supervisor_SUITE.erl +++ b/lib/stdlib/test/supervisor_SUITE.erl @@ -42,7 +42,7 @@ -export([ permanent_normal/1, transient_normal/1, temporary_normal/1, permanent_abnormal/1, transient_abnormal/1, - temporary_abnormal/1]). + temporary_abnormal/1, temporary_bystander/1]). %% Restart strategy tests -export([ one_for_one/1, @@ -74,7 +74,7 @@ all() -> {group, abnormal_termination}, child_unlink, tree, count_children_memory, do_not_save_start_parameters_for_temporary_children, do_not_save_child_specs_for_temporary_children, - simple_one_for_one_scale_many_temporary_children]. + simple_one_for_one_scale_many_temporary_children, temporary_bystander]. groups() -> [{sup_start, [], @@ -114,10 +114,9 @@ end_per_group(_GroupName, Config) -> Config. init_per_testcase(count_children_memory, Config) -> - MemoryState = erlang:system_info(allocator), - case count_children_allocator_test(MemoryState) of - true -> Config; - false -> + try erlang:memory() of + _ -> Config + catch error:notsup -> {skip, "+Meamin used during test; erlang:memory/1 not available"} end; init_per_testcase(_Case, Config) -> @@ -608,6 +607,37 @@ temporary_abnormal(Config) when is_list(Config) -> [0,0,0,0] = get_child_counts(sup_test). %%------------------------------------------------------------------------- +temporary_bystander(doc) -> + ["A temporary process killed as part of a rest_for_one or one_for_all " + "restart strategy should not be restarted given its args are not " + " saved. Otherwise the supervisor hits its limit and crashes."]; +temporary_bystander(suite) -> []; +temporary_bystander(_Config) -> + Child1 = {child1, {supervisor_1, start_child, []}, permanent, 100, + worker, []}, + Child2 = {child2, {supervisor_1, start_child, []}, temporary, 100, + worker, []}, + {ok, SupPid1} = supervisor:start_link(?MODULE, {ok, {{one_for_all, 2, 300}, []}}), + {ok, SupPid2} = supervisor:start_link(?MODULE, {ok, {{rest_for_one, 2, 300}, []}}), + unlink(SupPid1), % otherwise we crash with it + unlink(SupPid2), % otherwise we crash with it + {ok, CPid1} = supervisor:start_child(SupPid1, Child1), + {ok, _CPid2} = supervisor:start_child(SupPid1, Child2), + {ok, CPid3} = supervisor:start_child(SupPid2, Child1), + {ok, _CPid4} = supervisor:start_child(SupPid2, Child2), + terminate(SupPid1, CPid1, child1, normal), + terminate(SupPid2, CPid3, child1, normal), + timer:sleep(350), + catch link(SupPid1), + catch link(SupPid2), + %% The supervisor would die attempting to restart child2 + true = erlang:is_process_alive(SupPid1), + true = erlang:is_process_alive(SupPid2), + %% Child2 has not been restarted + [{child1, _, _, _}] = supervisor:which_children(SupPid1), + [{child1, _, _, _}] = supervisor:which_children(SupPid2). + +%%------------------------------------------------------------------------- one_for_one(doc) -> ["Test the one_for_one base case."]; one_for_one(suite) -> []; @@ -1032,17 +1062,6 @@ count_children_memory(Config) when is_list(Config) -> [terminate(SupPid, Pid, child, kill) || {undefined, Pid, worker, _Modules} <- Children3], [1,0,0,0] = get_child_counts(sup_test). -count_children_allocator_test(MemoryState) -> - Allocators = [temp_alloc, eheap_alloc, binary_alloc, ets_alloc, - driver_alloc, sl_alloc, ll_alloc, fix_alloc, std_alloc, - sys_alloc], - MemoryStateList = element(4, MemoryState), - AllocTypes = [lists:keyfind(Alloc, 1, MemoryStateList) - || Alloc <- Allocators], - AllocStates = [lists:keyfind(e, 1, AllocValue) - || {_Type, AllocValue} <- AllocTypes], - lists:all(fun(State) -> State == {e, true} end, AllocStates). - %%------------------------------------------------------------------------- do_not_save_start_parameters_for_temporary_children(doc) -> ["Temporary children shall not be restarted so they should not " |