diff options
Diffstat (limited to 'lib/tools/test')
| -rw-r--r-- | lib/tools/test/cover_SUITE.erl | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/lib/tools/test/cover_SUITE.erl b/lib/tools/test/cover_SUITE.erl index 161b0105b9..806297abdd 100644 --- a/lib/tools/test/cover_SUITE.erl +++ b/lib/tools/test/cover_SUITE.erl @@ -35,7 +35,8 @@ all() -> distribution, reconnect, die_and_reconnect, dont_reconnect_after_stop, stop_node_after_disconnect, export_import, otp_5031, otp_6115, - otp_8270, otp_10979_hanging_node, otp_14817], + otp_8270, otp_10979_hanging_node, otp_14817, + startup_race], case whereis(cover_server) of undefined -> [coverage,StartStop ++ NoStartStop]; @@ -1742,6 +1743,32 @@ otp_13289(Config) -> ok = file:delete(File), ok. +%% ERL-943; We should not crash on startup when multiple servers race to +%% register the server name. +startup_race(Config) when is_list(Config) -> + PidRefs = [spawn_monitor(fun() -> + case cover:start() of + {error, {already_started, _Pid}} -> + ok; + {ok, _Pid} -> + ok + end + end) || _<- lists:seq(1,8)], + startup_race_1(PidRefs). + +startup_race_1([{Pid, Ref} | PidRefs]) -> + receive + {'DOWN', Ref, process, Pid, normal} -> + startup_race_1(PidRefs); + {'DOWN', Ref, process, Pid, _Other} -> + ct:fail("Cover server crashed on startup.") + after 5000 -> + ct:fail("Timed out.") + end; +startup_race_1([]) -> + cover:stop(), + ok. + %%--Auxiliary------------------------------------------------------------ analyse_expr(Expr, Config) -> |