diff options
Diffstat (limited to 'erts/emulator/test/binary_SUITE.erl')
| -rw-r--r-- | erts/emulator/test/binary_SUITE.erl | 39 |
1 files changed, 19 insertions, 20 deletions
diff --git a/erts/emulator/test/binary_SUITE.erl b/erts/emulator/test/binary_SUITE.erl index 96ba2f64d4..f8f71efecc 100644 --- a/erts/emulator/test/binary_SUITE.erl +++ b/erts/emulator/test/binary_SUITE.erl @@ -521,30 +521,29 @@ external_size_1(Term, Size0, Limit) when Size0 < Limit -> external_size_1(_, _, _) -> ok. t_iolist_size(Config) when is_list(Config) -> - ?line Seed = {erlang:monotonic_time(), - erlang:time_offset(), - erlang:unique_integer([positive])}, - ?line io:format("Seed: ~p", [Seed]), - ?line random:seed(Seed), - ?line Base = <<0:(1 bsl 20)/unit:8>>, - ?line Powers = [1 bsl N || N <- lists:seq(2, 37)], - ?line Sizes0 = [[N - random:uniform(N div 2), - lists:seq(N-2, N+2), - N+N div 2, - N + random:uniform(N div 2)] || - N <- Powers], + _ = rand:uniform(), %Seed generator + io:format("Seed: ~p", [rand:export_seed()]), + + Base = <<0:(1 bsl 20)/unit:8>>, + Powers = [1 bsl N || N <- lists:seq(2, 37)], + Sizes0 = [[N - rand:uniform(N div 2), + lists:seq(N-2, N+2), + N+N div 2, + N + rand:uniform(N div 2)] || + N <- Powers], + %% Test sizes around 1^32 more thoroughly. FourGigs = 1 bsl 32, - ?line Sizes1 = [FourGigs+N || N <- lists:seq(-8, 40)] ++ Sizes0, - ?line Sizes2 = lists:flatten(Sizes1), - ?line Sizes = lists:usort(Sizes2), + Sizes1 = [FourGigs+N || N <- lists:seq(-8, 40)] ++ Sizes0, + Sizes2 = lists:flatten(Sizes1), + Sizes = lists:usort(Sizes2), io:format("~p sizes:", [length(Sizes)]), io:format("~p\n", [Sizes]), - ?line [Sz = iolist_size(build_iolist(Sz, Base)) || Sz <- Sizes], + _ = [Sz = iolist_size(build_iolist(Sz, Base)) || Sz <- Sizes], ok. build_iolist(N, Base) when N < 16 -> - case random:uniform(3) of + case rand:uniform(3) of 1 -> <<Bin:N/binary,_/binary>> = Base, Bin; @@ -552,7 +551,7 @@ build_iolist(N, Base) when N < 16 -> lists:seq(1, N) end; build_iolist(N, Base) when N =< byte_size(Base) -> - case random:uniform(3) of + case rand:uniform(3) of 1 -> <<Bin:N/binary,_/binary>> = Base, Bin; @@ -570,7 +569,7 @@ build_iolist(N, Base) when N =< byte_size(Base) -> end end; build_iolist(N0, Base) -> - Small = random:uniform(15), + Small = rand:uniform(15), Seq = lists:seq(1, Small), N = N0 - Small, case N rem 2 of @@ -1604,7 +1603,7 @@ bit_sized_binary(Bin0) -> unaligned_sub_bin(Bin, 0) -> Bin; unaligned_sub_bin(Bin0, Offs) -> - F = random:uniform(256), + F = rand:uniform(256), Roffs = 8-Offs, Bin1 = <<F:Offs,Bin0/binary,F:Roffs>>, Sz = size(Bin0), |