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-rw-r--r--lib/stdlib/test/supervisor_SUITE.erl35
1 files changed, 33 insertions, 2 deletions
diff --git a/lib/stdlib/test/supervisor_SUITE.erl b/lib/stdlib/test/supervisor_SUITE.erl
index ff5e4c629a..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, [],
@@ -607,6 +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) -> [];