File 4351-erts-Improve-node-leak-check-in-end_per_te... of Package erlang

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File 4351-erts-Improve-node-leak-check-in-end_per_testcase.patch of Package erlang (Revision 3ae3e8087768a76d5dc164cd73323247)

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From 51331bd2f85a8ab464fc5bd6020bd7900f4f2942 Mon Sep 17 00:00:00 2001
From: Sverker Eriksson <sverker@erlang.org>
Date: Tue, 4 Oct 2022 15:41:43 +0200
Subject: [PATCH] erts: Improve node leak check in end_per_testcase

Don't lose original failure reason,
instead amend "Leaked connections".
---
 erts/emulator/test/alloc_SUITE.erl            |  7 +------
 erts/emulator/test/bif_SUITE.erl              |  9 ++------
 erts/emulator/test/dirty_bif_SUITE.erl        |  9 ++------
 erts/emulator/test/distribution_SUITE.erl     |  4 +---
 erts/emulator/test/dump_SUITE.erl             |  9 ++------
 erts/emulator/test/efile_SUITE.erl            |  9 ++------
 erts/emulator/test/erl_link_SUITE.erl         |  9 ++------
 erts/emulator/test/erts_debug_SUITE.erl       |  9 ++------
 erts/emulator/test/erts_test_utils.erl        | 21 ++++++++++++++++++-
 erts/emulator/test/exception_SUITE.erl        |  9 ++------
 erts/emulator/test/float_SUITE.erl            |  9 ++------
 erts/emulator/test/fun_SUITE.erl              |  9 ++------
 erts/emulator/test/hash_SUITE.erl             |  9 ++------
 .../test/hash_property_test_SUITE.erl         |  9 ++------
 erts/emulator/test/list_bif_SUITE.erl         |  9 ++------
 erts/emulator/test/lttng_SUITE.erl            |  9 ++------
 erts/emulator/test/map_SUITE.erl              | 10 +++------
 erts/emulator/test/match_spec_SUITE.erl       |  9 ++------
 .../test/message_queue_data_SUITE.erl         |  9 ++------
 erts/emulator/test/monitor_SUITE.erl          |  9 ++------
 erts/emulator/test/node_container_SUITE.erl   |  7 +------
 erts/emulator/test/port_SUITE.erl             |  9 ++------
 erts/emulator/test/process_SUITE.erl          |  7 +------
 erts/emulator/test/ref_SUITE.erl              |  7 +------
 erts/emulator/test/scheduler_SUITE.erl        |  7 +------
 erts/emulator/test/signal_SUITE.erl           |  9 ++------
 erts/emulator/test/smoke_test_SUITE.erl       |  7 +------
 erts/emulator/test/system_info_SUITE.erl      |  9 ++------
 erts/emulator/test/time_SUITE.erl             |  9 ++------
 erts/emulator/test/timer_bif_SUITE.erl        |  9 ++------
 erts/emulator/test/trace_SUITE.erl            |  7 +------
 erts/emulator/test/unique_SUITE.erl           |  9 ++------
 32 files changed, 75 insertions(+), 207 deletions(-)

diff --git a/erts/emulator/test/alloc_SUITE.erl b/erts/emulator/test/alloc_SUITE.erl
index 2b96939858..3f128717b2 100644
--- a/erts/emulator/test/alloc_SUITE.erl
+++ b/erts/emulator/test/alloc_SUITE.erl
@@ -66,12 +66,7 @@ init_per_testcase(Case, Config) when is_list(Config) ->
     [{testcase, Case},{debug,false}|Config].
 
 end_per_testcase(_Case, Config) when is_list(Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 %%                                                                        %%
diff --git a/erts/emulator/test/bif_SUITE.erl b/erts/emulator/test/bif_SUITE.erl
index a8065bd292..1b38fee8e1 100644
--- a/erts/emulator/test/bif_SUITE.erl
+++ b/erts/emulator/test/bif_SUITE.erl
@@ -72,13 +72,8 @@ init_per_testcase(shadow_comments, Config) when is_list(Config) ->
 init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
     Config.
 
-end_per_testcase(_Func, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_Func, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 %% erl_bif_types comes from dialyzer which some test runs skip building, so
 %% we'll skip the tests that use it as the result shouldn't vary based on
diff --git a/erts/emulator/test/dirty_bif_SUITE.erl b/erts/emulator/test/dirty_bif_SUITE.erl
index 8669e6a746..efb31f8471 100644
--- a/erts/emulator/test/dirty_bif_SUITE.erl
+++ b/erts/emulator/test/dirty_bif_SUITE.erl
@@ -82,13 +82,8 @@ end_per_suite(_Config) ->
 init_per_testcase(Case, Config) ->
     [{testcase, Case} | Config].
 
-end_per_testcase(_Case, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_Case, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 dirty_bif(Config) when is_list(Config) ->
     dirty_cpu = erts_debug:dirty_cpu(scheduler,type),
diff --git a/erts/emulator/test/distribution_SUITE.erl b/erts/emulator/test/distribution_SUITE.erl
index d57942d138..ba422fd9df 100644
--- a/erts/emulator/test/distribution_SUITE.erl
+++ b/erts/emulator/test/distribution_SUITE.erl
@@ -164,9 +164,7 @@ end_per_testcase(_TestCase, Config) ->
     case wait_until(fun() -> nodes(connected) == [] end, 10_000) of
         ok -> ok;
         timeout ->
-            Nodes = nodes(connected),
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
+            erts_test_utils:ept_check_leaked_nodes(Config)
     end.
 
 %% Tests pinging a node in different ways.
diff --git a/erts/emulator/test/dump_SUITE.erl b/erts/emulator/test/dump_SUITE.erl
index 625800fdf6..d58984b88c 100644
--- a/erts/emulator/test/dump_SUITE.erl
+++ b/erts/emulator/test/dump_SUITE.erl
@@ -54,13 +54,8 @@ init_per_testcase(_, Config) ->
     Config.
 
 
-end_per_testcase(_, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 %%%
 %%% The test cases -------------------------------------------------------------
diff --git a/erts/emulator/test/efile_SUITE.erl b/erts/emulator/test/efile_SUITE.erl
index 98f76067bd..753c41cc1d 100644
--- a/erts/emulator/test/efile_SUITE.erl
+++ b/erts/emulator/test/efile_SUITE.erl
@@ -35,13 +35,8 @@ all() ->
 
 init_per_testcase(_TestCase, Config) ->
     Config.
-end_per_testcase(_TestCase, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_TestCase, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 %%
 %% Open as many files as possible. Do this several times and check 
diff --git a/erts/emulator/test/erl_link_SUITE.erl b/erts/emulator/test/erl_link_SUITE.erl
index d8b9d37fc2..0e3829c275 100644
--- a/erts/emulator/test/erl_link_SUITE.erl
+++ b/erts/emulator/test/erl_link_SUITE.erl
@@ -91,13 +91,8 @@ init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
     end,
     Config.
 
-end_per_testcase(_Func, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_Func, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 init_per_suite(Config) ->
     Config.
diff --git a/erts/emulator/test/erts_debug_SUITE.erl b/erts/emulator/test/erts_debug_SUITE.erl
index 01221de8b5..2149eac41b 100644
--- a/erts/emulator/test/erts_debug_SUITE.erl
+++ b/erts/emulator/test/erts_debug_SUITE.erl
@@ -46,13 +46,8 @@ groups() ->
 
 init_per_testcase(_TestCase, Config) ->
     Config.
-end_per_testcase(_TestCase, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_TestCase, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 interpreter_size_bench(_Config) ->
     Size = erts_debug:interpreter_size(),
diff --git a/erts/emulator/test/erts_test_utils.erl b/erts/emulator/test/erts_test_utils.erl
index 158b78c2c1..4d38f11cd5 100644
--- a/erts/emulator/test/erts_test_utils.erl
+++ b/erts/emulator/test/erts_test_utils.erl
@@ -29,7 +29,8 @@
          mk_ext_port/2,
          mk_ext_ref/2,
          available_internal_state/1,
-         check_node_dist/0, check_node_dist/1, check_node_dist/3]).
+         check_node_dist/0, check_node_dist/1, check_node_dist/3,
+         ept_check_leaked_nodes/1]).
 
 
 
@@ -292,3 +293,21 @@ check_refc(ThisNodeName,ThisCreation,Table,EntryList) when is_list(EntryList) ->
       end,
       EntryList),
     ok.
+
+%% To be called by end_per_testcase
+%% to check and kill leaked node connections.
+ept_check_leaked_nodes(Config) ->
+    case nodes(connected) of
+        [] -> ok;
+        Nodes ->
+            [net_kernel:disconnect(N) || N <- Nodes],
+            Leaked =  {"Leaked connections", Nodes},
+            Fail = case proplists:get_value(tc_status, Config) of
+                       ok -> Leaked;
+                       {failed, Reason} ->
+                           [Reason, {end_per_testcase, Leaked}];
+                       {skipped, _}=Skipped ->
+                           [Skipped, {end_per_testcase, Leaked}]
+                   end,
+            {fail, Fail}
+    end.
diff --git a/erts/emulator/test/exception_SUITE.erl b/erts/emulator/test/exception_SUITE.erl
index 5cce5d1491..ea76a473f2 100644
--- a/erts/emulator/test/exception_SUITE.erl
+++ b/erts/emulator/test/exception_SUITE.erl
@@ -54,13 +54,8 @@ all() ->
 
 init_per_testcase(_TestCase, Config) ->
     Config.
-end_per_testcase(_TestCase, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_TestCase, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 -define(try_match(E),
         catch ?MODULE:bar(),
diff --git a/erts/emulator/test/float_SUITE.erl b/erts/emulator/test/float_SUITE.erl
index 3c1057671f..9784f5c90b 100644
--- a/erts/emulator/test/float_SUITE.erl
+++ b/erts/emulator/test/float_SUITE.erl
@@ -46,13 +46,8 @@ groups() ->
 
 init_per_testcase(_TestCase, Config) ->
     Config.
-end_per_testcase(_TestCase, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_TestCase, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 %%
 %% OTP-7178, list_to_float on very small numbers should give 0.0
diff --git a/erts/emulator/test/fun_SUITE.erl b/erts/emulator/test/fun_SUITE.erl
index 3c9d81a9fb..3fea66eadc 100644
--- a/erts/emulator/test/fun_SUITE.erl
+++ b/erts/emulator/test/fun_SUITE.erl
@@ -49,13 +49,8 @@ all() ->
 
 init_per_testcase(_TestCase, Config) ->
     Config.
-end_per_testcase(_TestCase, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_TestCase, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 
 %% Test that the correct EXIT code is returned for all types of bad funs.
diff --git a/erts/emulator/test/hash_SUITE.erl b/erts/emulator/test/hash_SUITE.erl
index 8f24e17417..c8034c3835 100644
--- a/erts/emulator/test/hash_SUITE.erl
+++ b/erts/emulator/test/hash_SUITE.erl
@@ -172,13 +172,8 @@ end_per_group(_, Config) ->
 
 init_per_testcase(_TestCase, Config) ->
     Config.
-end_per_testcase(_TestCase, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_TestCase, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 %% Tests basic functionality of erlang:phash and that the
 %% hashes has not changed (neither hash nor phash)
diff --git a/erts/emulator/test/hash_property_test_SUITE.erl b/erts/emulator/test/hash_property_test_SUITE.erl
index c25e9ad677..2c57850e3c 100644
--- a/erts/emulator/test/hash_property_test_SUITE.erl
+++ b/erts/emulator/test/hash_property_test_SUITE.erl
@@ -73,13 +73,8 @@ end_per_group(_, Config) ->
 
 init_per_testcase(_TestCase, Config) ->
     Config.
-end_per_testcase(_TestCase, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_TestCase, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 test_phash2_no_diff(Config) when is_list(Config) ->
     true = ct_property_test:quickcheck(
diff --git a/erts/emulator/test/list_bif_SUITE.erl b/erts/emulator/test/list_bif_SUITE.erl
index 88709c92ec..b6941bfa43 100644
--- a/erts/emulator/test/list_bif_SUITE.erl
+++ b/erts/emulator/test/list_bif_SUITE.erl
@@ -40,13 +40,8 @@ all() ->
 
 init_per_testcase(_TestCase, Config) ->
     Config.
-end_per_testcase(_TestCase, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_TestCase, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 %% Tests list_to_integer and string:to_integer
 t_list_to_integer(Config) when is_list(Config) ->
diff --git a/erts/emulator/test/lttng_SUITE.erl b/erts/emulator/test/lttng_SUITE.erl
index b76859fe6c..1a0891184f 100644
--- a/erts/emulator/test/lttng_SUITE.erl
+++ b/erts/emulator/test/lttng_SUITE.erl
@@ -71,15 +71,10 @@ init_per_testcase(Case, Config) ->
     ok = ensure_lttng_started(Name, Config),
     [{session, Name}|Config].
 
-end_per_testcase(Case, _Config) ->
+end_per_testcase(Case, Config) ->
     Name = atom_to_list(Case),
     ok = ensure_lttng_stopped(Name),
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 %% Not tested yet
 %%   org_erlang_otp:driver_process_exit
diff --git a/erts/emulator/test/map_SUITE.erl b/erts/emulator/test/map_SUITE.erl
index 1094ddf0e9..72f1c1174c 100644
--- a/erts/emulator/test/map_SUITE.erl
+++ b/erts/emulator/test/map_SUITE.erl
@@ -199,13 +199,9 @@ end_per_suite(Config) ->
 
 init_per_testcase(_TestCase, Config) ->
     Config.
-end_per_testcase(_TestCase, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_TestCase, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
+
 
 %% tests
 
diff --git a/erts/emulator/test/match_spec_SUITE.erl b/erts/emulator/test/match_spec_SUITE.erl
index 18aca7c2c1..eadddfe312 100644
--- a/erts/emulator/test/match_spec_SUITE.erl
+++ b/erts/emulator/test/match_spec_SUITE.erl
@@ -60,13 +60,8 @@ all() ->
 
 init_per_testcase(_TestCase, Config) ->
     Config.
-end_per_testcase(_TestCase, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_TestCase, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 test_1(Config) when is_list(Config) ->
     tr(fun() -> ?MODULE:f1(a) end,
diff --git a/erts/emulator/test/message_queue_data_SUITE.erl b/erts/emulator/test/message_queue_data_SUITE.erl
index effd4c1370..71921a4eda 100644
--- a/erts/emulator/test/message_queue_data_SUITE.erl
+++ b/erts/emulator/test/message_queue_data_SUITE.erl
@@ -43,13 +43,8 @@ end_per_suite(_Config) ->
 
 init_per_testcase(_TestCase, Config) ->
     Config.
-end_per_testcase(_TestCase, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_TestCase, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 all() -> 
     [basic, process_info_messages, total_heap_size, change_to_off_heap,
diff --git a/erts/emulator/test/monitor_SUITE.erl b/erts/emulator/test/monitor_SUITE.erl
index c46c4b149f..e17f8db920 100644
--- a/erts/emulator/test/monitor_SUITE.erl
+++ b/erts/emulator/test/monitor_SUITE.erl
@@ -54,13 +54,8 @@ groups() ->
 
 init_per_testcase(_TestCase, Config) ->
     Config.
-end_per_testcase(_TestCase, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_TestCase, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 %% A monitors B, B kills A and then exits (yielded core dump)
 case_1(Config) when is_list(Config) ->
diff --git a/erts/emulator/test/node_container_SUITE.erl b/erts/emulator/test/node_container_SUITE.erl
index b3e954f31a..97ee9adcc0 100644
--- a/erts/emulator/test/node_container_SUITE.erl
+++ b/erts/emulator/test/node_container_SUITE.erl
@@ -81,12 +81,7 @@ init_per_testcase(_Case, Config) when is_list(Config) ->
     Config.
 
 end_per_testcase(_Case, Config) when is_list(Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 %%%
 %%% The test cases -------------------------------------------------------------
diff --git a/erts/emulator/test/port_SUITE.erl b/erts/emulator/test/port_SUITE.erl
index f44e19acec..bbfb6b52ce 100644
--- a/erts/emulator/test/port_SUITE.erl
+++ b/erts/emulator/test/port_SUITE.erl
@@ -226,13 +226,8 @@ init_per_testcase(Case, Config) when Case =:= mon_port_driver_die;
 init_per_testcase(Case, Config) ->
     [{testcase, Case} |Config].
 
-end_per_testcase(_Case, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_Case, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 init_per_suite(Config) when is_list(Config) ->
     ignore_cores:init(Config).
diff --git a/erts/emulator/test/process_SUITE.erl b/erts/emulator/test/process_SUITE.erl
index 38954ef7a9..ee9834b44f 100644
--- a/erts/emulator/test/process_SUITE.erl
+++ b/erts/emulator/test/process_SUITE.erl
@@ -221,12 +221,7 @@ end_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
                        #{size => 0,
                          kill => true,
                          error_logger => true}),
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 fun_spawn(Fun) ->
     spawn_link(erlang, apply, [Fun, []]).
diff --git a/erts/emulator/test/ref_SUITE.erl b/erts/emulator/test/ref_SUITE.erl
index 2c11d5ac34..597ac51c12 100644
--- a/erts/emulator/test/ref_SUITE.erl
+++ b/erts/emulator/test/ref_SUITE.erl
@@ -39,12 +39,7 @@ init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
     [{testcase, Func}|Config].
 
 end_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 all() -> 
     [wrap_1, compare_list, compare_ets, internal_size, external_size].
diff --git a/erts/emulator/test/scheduler_SUITE.erl b/erts/emulator/test/scheduler_SUITE.erl
index 4f179c9c07..65a1c1f925 100644
--- a/erts/emulator/test/scheduler_SUITE.erl
+++ b/erts/emulator/test/scheduler_SUITE.erl
@@ -123,12 +123,7 @@ init_per_tc(Case, Config) ->
     [{testcase, Case}, {ok_res, OkRes} |Config].
 
 end_per_testcase(_Case, Config) when is_list(Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 -define(ERTS_RUNQ_CHECK_BALANCE_REDS_PER_SCHED, (2000*2000)).
 -define(DEFAULT_TEST_REDS_PER_SCHED, 200000000).
diff --git a/erts/emulator/test/signal_SUITE.erl b/erts/emulator/test/signal_SUITE.erl
index 10b7f85201..990f02790c 100644
--- a/erts/emulator/test/signal_SUITE.erl
+++ b/erts/emulator/test/signal_SUITE.erl
@@ -66,13 +66,8 @@
 init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
     [{testcase, Func}|Config].
 
-end_per_testcase(_Func, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_Func, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 init_per_suite(Config) ->
     Config.
diff --git a/erts/emulator/test/smoke_test_SUITE.erl b/erts/emulator/test/smoke_test_SUITE.erl
index 26cd633049..b59390a854 100644
--- a/erts/emulator/test/smoke_test_SUITE.erl
+++ b/erts/emulator/test/smoke_test_SUITE.erl
@@ -49,12 +49,7 @@ init_per_tc(Case, Config) ->
     [{testcase, Case}|Config].
 
 end_per_testcase(_Case, Config) when is_list(Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 %%%
 %%% The test cases -------------------------------------------------------------
diff --git a/erts/emulator/test/system_info_SUITE.erl b/erts/emulator/test/system_info_SUITE.erl
index 6bec1ffaf9..76efe053f5 100644
--- a/erts/emulator/test/system_info_SUITE.erl
+++ b/erts/emulator/test/system_info_SUITE.erl
@@ -62,13 +62,8 @@ init_per_testcase(_, Config) ->
 
 end_per_testcase(procs_bug, Config) ->
     procs_bug(end_per_testcase, Config);
-end_per_testcase(_, _) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 %%%
 %%% The test cases -------------------------------------------------------------
diff --git a/erts/emulator/test/time_SUITE.erl b/erts/emulator/test/time_SUITE.erl
index 3a0aebe9b9..ce3e796da5 100644
--- a/erts/emulator/test/time_SUITE.erl
+++ b/erts/emulator/test/time_SUITE.erl
@@ -70,13 +70,8 @@
 init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
     [{testcase, Func}|Config].
 
-end_per_testcase(_Func, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_Func, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 suite() -> [{ct_hooks,[ts_install_cth]}].
 
diff --git a/erts/emulator/test/timer_bif_SUITE.erl b/erts/emulator/test/timer_bif_SUITE.erl
index bf22df8131..5866553b3c 100644
--- a/erts/emulator/test/timer_bif_SUITE.erl
+++ b/erts/emulator/test/timer_bif_SUITE.erl
@@ -47,13 +47,8 @@ init_per_testcase(_Case, Config) ->
     end,
     Config.
 
-end_per_testcase(_Case, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_Case, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 init_per_suite(Config) ->
     erts_debug:set_internal_state(available_internal_state, true),
diff --git a/erts/emulator/test/trace_SUITE.erl b/erts/emulator/test/trace_SUITE.erl
index ca54586352..37f47cff30 100644
--- a/erts/emulator/test/trace_SUITE.erl
+++ b/erts/emulator/test/trace_SUITE.erl
@@ -74,12 +74,7 @@ end_per_testcase(_Case, Config) ->
     unlink(Receiver),
     exit(Receiver, die),
 
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 %% No longer testing anything, just reporting whether cpu_timestamp
 %% is enabled or not.
diff --git a/erts/emulator/test/unique_SUITE.erl b/erts/emulator/test/unique_SUITE.erl
index 1ff94690ef..d041ed5632 100644
--- a/erts/emulator/test/unique_SUITE.erl
+++ b/erts/emulator/test/unique_SUITE.erl
@@ -50,13 +50,8 @@ end_per_suite(_Config) ->
 
 init_per_testcase(_TestCase, Config) ->
     Config.
-end_per_testcase(_TestCase, _Config) ->
-    case nodes(connected) of
-        [] -> ok;
-        Nodes ->
-            [net_kernel:disconnect(N) || N <- Nodes],
-            {fail, {"Leaked connections", Nodes}}
-    end.
+end_per_testcase(_TestCase, Config) ->
+    erts_test_utils:ept_check_leaked_nodes(Config).
 
 %%
 %%
-- 
2.35.3

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File 4351-erts-Improve-node-leak-check-in-end_per_testcase.patch of Package erlang (Revision 3ae3e8087768a76d5dc164cd73323247)

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