diff options
Diffstat (limited to 'erts/emulator/test/time_SUITE.erl')
| -rw-r--r-- | erts/emulator/test/time_SUITE.erl | 84 |
1 files changed, 57 insertions, 27 deletions
diff --git a/erts/emulator/test/time_SUITE.erl b/erts/emulator/test/time_SUITE.erl index 33076c7461..f6f99a0c81 100644 --- a/erts/emulator/test/time_SUITE.erl +++ b/erts/emulator/test/time_SUITE.erl @@ -48,7 +48,7 @@ -export([local_to_univ_utc/1]). --include_lib("test_server/include/test_server.hrl"). +-include_lib("common_test/include/ct.hrl"). -export([linear_time/1]). @@ -69,7 +69,7 @@ init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) -> [{testcase, Func}|Config]. -end_per_testcase(_Func, Config) -> +end_per_testcase(_Func, _Config) -> ok. suite() -> [{ct_hooks,[ts_install_cth]}]. @@ -320,7 +320,41 @@ timestamp(suite) -> timestamp(doc) -> ["Test that os:timestamp works."]; timestamp(Config) when is_list(Config) -> - repeating_timestamp_check(100000). + try + repeating_timestamp_check(100000) + catch + throw : {fail, Failure} -> + %% + %% Our time warping test machines currently warps + %% time every 6:th second. If we get a warp during + %% 10 seconds, assume this is a time warping test + %% and ignore the failure. + %% + case had_time_warp(10) of + true -> + {skip, "Seems to be time warp test run..."}; + false -> + test_server:fail(Failure) + end + end. + +os_system_time_offset() -> + erlang:convert_time_unit(os:system_time() - erlang:monotonic_time(), + native, micro_seconds). + +had_time_warp(Secs) -> + had_time_warp(os_system_time_offset(), Secs). + +had_time_warp(OrigOffs, 0) -> + false; +had_time_warp(OrigOffs, N) -> + receive after 1000 -> ok end, + case OrigOffs - os_system_time_offset() of + Diff when Diff > 500000; Diff < -500000 -> + true; + _Diff -> + had_time_warp(OrigOffs, N-1) + end. repeating_timestamp_check(0) -> ok; @@ -346,15 +380,15 @@ repeating_timestamp_check(N) -> NSecs = NA*1000000+NB+round(NC/1000000), case Secs - NSecs of TooLarge when TooLarge > 3600 -> - test_server:fail( - lists:flatten( + throw({fail, + lists:flatten( io_lib:format("os:timestamp/0 is ~w s more than erlang:now/0", - [TooLarge]))); + [TooLarge]))}); TooSmall when TooSmall < -3600 -> - test_server:fail( + throw({fail, lists:flatten( io_lib:format("os:timestamp/0 is ~w s less than erlang:now/0", - [-TooSmall]))); + [-TooSmall]))}); _ -> ok end, @@ -742,25 +776,21 @@ chk_strc(Res0, Res1) -> ok. chk_random_values(FR, TR) -> -% case (FR rem TR == 0) orelse (TR rem FR == 0) of -% true -> - io:format("rand values ~p -> ~p~n", [FR, TR]), - random:seed(268438039, 268440479, 268439161), - Values = lists:map(fun (_) -> random:uniform(1 bsl 65) - (1 bsl 64) end, - lists:seq(1, 100000)), - CheckFun = fun (V) -> - CV = erlang:convert_time_unit(V, FR, TR), - case {(FR*CV) div TR =< V, - (FR*(CV+1)) div TR >= V} of - {true, true} -> - ok; - Failure -> - ?t:fail({Failure, CV, V, FR, TR}) - end - end, - lists:foreach(CheckFun, Values).%; -% false -> ok -% end. + io:format("rand values ~p -> ~p~n", [FR, TR]), + rand:seed(exsplus, {268438039,268440479,268439161}), + Values = lists:map(fun (_) -> rand:uniform(1 bsl 65) - (1 bsl 64) end, + lists:seq(1, 100000)), + CheckFun = fun (V) -> + CV = erlang:convert_time_unit(V, FR, TR), + case {(FR*CV) div TR =< V, + (FR*(CV+1)) div TR >= V} of + {true, true} -> + ok; + Failure -> + ?t:fail({Failure, CV, V, FR, TR}) + end + end, + lists:foreach(CheckFun, Values). chk_values_per_value(_FromRes, _ToRes, |