%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 1997-2011. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved online at http://www.erlang.org/.
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and limitations
%% under the License.
%%
%% %CopyrightEnd%
%%
-module(binary_SUITE).
-compile({nowarn_deprecated_function, {erlang,hash,2}}).
%% Tests binaries and the BIFs:
%% list_to_binary/1
%% iolist_to_binary/1
%% bitstr_to_list/1
%% binary_to_list/1
%% binary_to_list/3
%% binary_to_term/1
%% binary_to_term/2
%% bitstr_to_list/1
%% term_to_binary/1
%% erlang:external_size/1
%% size(Binary)
%% iolist_size/1
%% concat_binary/1
%% split_binary/2
%% hash(Binary, N)
%% phash(Binary, N)
%% phash2(Binary, N)
%%
-include_lib("test_server/include/test_server.hrl").
-export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
init_per_group/2,end_per_group/2,
init_per_testcase/2, end_per_testcase/2,
copy_terms/1, conversions/1, deep_lists/1, deep_bitstr_lists/1,
bad_list_to_binary/1, bad_binary_to_list/1,
t_split_binary/1, bad_split/1, t_concat_binary/1,
terms/1, terms_float/1, external_size/1, t_iolist_size/1,
t_hash/1,
bad_size/1,
bad_term_to_binary/1,
bad_binary_to_term_2/1,safe_binary_to_term2/1,
bad_binary_to_term/1, bad_terms/1, more_bad_terms/1,
otp_5484/1,otp_5933/1,
ordering/1,unaligned_order/1,gc_test/1,
bit_sized_binary_sizes/1,
otp_6817/1,deep/1,obsolete_funs/1,robustness/1,otp_8117/1,
otp_8180/1]).
%% Internal exports.
-export([sleeper/0]).
suite() -> [{ct_hooks,[ts_install_cth]},
{timetrap,{minutes,2}}].
all() ->
[copy_terms, conversions, deep_lists, deep_bitstr_lists,
t_split_binary, bad_split, t_concat_binary,
bad_list_to_binary, bad_binary_to_list, terms,
terms_float, external_size, t_iolist_size,
bad_binary_to_term_2, safe_binary_to_term2,
bad_binary_to_term, bad_terms, t_hash, bad_size,
bad_term_to_binary, more_bad_terms, otp_5484, otp_5933,
ordering, unaligned_order, gc_test,
bit_sized_binary_sizes, otp_6817, otp_8117, deep,
obsolete_funs, robustness, otp_8180].
groups() ->
[].
init_per_suite(Config) ->
Config.
end_per_suite(_Config) ->
ok.
init_per_group(_GroupName, Config) ->
Config.
end_per_group(_GroupName, Config) ->
Config.
init_per_testcase(Func, Config) when is_atom(Func), is_list(Config) ->
Config.
end_per_testcase(_Func, _Config) ->
ok.
-define(heap_binary_size, 64).
copy_terms(Config) when is_list(Config) ->
Self = self(),
?line Pid = spawn_link(fun() -> copy_server(Self) end),
F = fun(Term) ->
Pid ! Term,
receive
Term -> ok;
Other ->
io:format("Sent: ~P\nGot back:~P", [Term,12,Other,12]),
?t:fail(bad_term)
end
end,
?line test_terms(F),
ok.
copy_server(Parent) ->
receive
Term ->
Parent ! Term,
copy_server(Parent)
end.
%% Tests list_to_binary/1, binary_to_list/1 and size/1,
%% using flat lists.
conversions(suite) -> [];
conversions(Config) when is_list(Config) ->
?line test_bin([]),
?line test_bin([1]),
?line test_bin([1, 2]),
?line test_bin([1, 2, 3]),
?line test_bin(lists:seq(0, ?heap_binary_size)),
?line test_bin(lists:seq(0, ?heap_binary_size+1)),
?line test_bin(lists:seq(0, 255)),
?line test_bin(lists:duplicate(50000, $@)),
%% Binary in list.
List = [1,2,3,4,5],
?line B1 = make_sub_binary(list_to_binary(List)),
?line 5 = size(B1),
?line 5 = size(make_unaligned_sub_binary(B1)),
?line 40 = bit_size(B1),
?line 40 = bit_size(make_unaligned_sub_binary(B1)),
?line B2 = list_to_binary([42,B1,19]),
?line B2 = list_to_binary([42,make_unaligned_sub_binary(B1),19]),
?line B2 = iolist_to_binary(B2),
?line B2 = iolist_to_binary(make_unaligned_sub_binary(B2)),
?line 7 = size(B2),
?line 7 = size(make_sub_binary(B2)),
?line 56 = bit_size(B2),
?line 56 = bit_size(make_sub_binary(B2)),
?line [42,1,2,3,4,5,19] = binary_to_list(B2),
?line [42,1,2,3,4,5,19] = binary_to_list(make_sub_binary(B2)),
?line [42,1,2,3,4,5,19] = binary_to_list(make_unaligned_sub_binary(B2)),
?line [42,1,2,3,4,5,19] = bitstring_to_list(B2),
?line [42,1,2,3,4,5,19] = bitstring_to_list(make_sub_binary(B2)),
?line [42,1,2,3,4,5,19] = bitstring_to_list(make_unaligned_sub_binary(B2)),
ok.
test_bin(List) ->
?line Size = length(List),
?line Bin = list_to_binary(List),
?line Bin = iolist_to_binary(List),
?line Bin = list_to_bitstring(List),
?line Size = iolist_size(List),
?line Size = iolist_size(Bin),
?line Size = iolist_size(make_unaligned_sub_binary(Bin)),
?line Size = size(Bin),
?line Size = size(make_sub_binary(Bin)),
?line Size = size(make_unaligned_sub_binary(Bin)),
?line List = binary_to_list(Bin),
?line List = binary_to_list(make_sub_binary(Bin)),
?line List = binary_to_list(make_unaligned_sub_binary(Bin)),
?line List = bitstring_to_list(Bin),
?line List = bitstring_to_list(make_unaligned_sub_binary(Bin)).
%% Tests list_to_binary/1, iolist_to_binary/1, list_to_bitstr/1, binary_to_list/1,3,
%% bitstr_to_list/1, and size/1, using deep lists.
deep_lists(Config) when is_list(Config) ->
?line test_deep_list(["abc"]),
?line test_deep_list([[12,13,[123,15]]]),
?line test_deep_list([[12,13,[lists:seq(0, 255), []]]]),
ok.
test_deep_list(List) ->
?line FlatList = lists:flatten(List),
?line Size = length(FlatList),
?line Bin = list_to_binary(List),
?line Bin = iolist_to_binary(List),
?line Bin = iolist_to_binary(Bin),
?line Bin = list_to_bitstring(List),
?line Size = size(Bin),
?line Size = iolist_size(List),
?line Size = iolist_size(FlatList),
?line Size = iolist_size(Bin),
?line Bitsize = bit_size(Bin),
?line Bitsize = 8*Size,
?line FlatList = binary_to_list(Bin),
?line FlatList = bitstring_to_list(Bin),
io:format("testing plain binary..."),
?line t_binary_to_list_3(FlatList, Bin, 1, Size),
io:format("testing unaligned sub binary..."),
?line t_binary_to_list_3(FlatList, make_unaligned_sub_binary(Bin), 1, Size).
t_binary_to_list_3(List, Bin, From, To) ->
?line going_up(List, Bin, From, To),
?line going_down(List, Bin, From, To),
?line going_center(List, Bin, From, To).
going_up(List, Bin, From, To) when From =< To ->
?line List = binary_to_list(Bin, From, To),
?line going_up(tl(List), Bin, From+1, To);
going_up(_List, _Bin, From, To) when From > To ->
ok.
going_down(List, Bin, From, To) when To > 0->
?line compare(List, binary_to_list(Bin, From, To), To-From+1),
?line going_down(List, Bin, From, To-1);
going_down(_List, _Bin, _From, _To) ->
ok.
going_center(List, Bin, From, To) when From >= To ->
?line compare(List, binary_to_list(Bin, From, To), To-From+1),
?line going_center(tl(List), Bin, From+1, To-1);
going_center(_List, _Bin, _From, _To) ->
ok.
compare([X|Rest1], [X|Rest2], Left) when Left > 0 ->
?line compare(Rest1, Rest2, Left-1);
compare([_X|_], [_Y|_], _Left) ->
?line test_server:fail();
compare(_List, [], 0) ->
ok.
deep_bitstr_lists(Config) when is_list(Config) ->
?line {<<7:3>>,[<<7:3>>]} = test_deep_bitstr([<<7:3>>]),
?line {<<42,5:3>>=Bin,[42,<<5:3>>]=List} = test_deep_bitstr([42,<<5:3>>]),
?line {Bin,List} = test_deep_bitstr([42|<<5:3>>]),
?line {Bin,List} = test_deep_bitstr([<<42,5:3>>]),
?line {Bin,List} = test_deep_bitstr([<<1:3>>,<<10:5>>|<<5:3>>]),
?line {Bin,List} = test_deep_bitstr([<<1:3>>,<<10:5>>,<<5:3>>]),
?line {Bin,List} = test_deep_bitstr([[<<1:3>>,<<10:5>>],[],<<5:3>>]),
?line {Bin,List} = test_deep_bitstr([[[<<1:3>>]|<<10:5>>],[],<<5:3>>]),
?line {Bin,List} = test_deep_bitstr([[<<0:1>>,<<0:1>>,[],<<1:1>>,<<10:5>>],
<<1:1>>,<<0:1>>,<<1:1>>]),
ok.
test_deep_bitstr(List) ->
%%?line {'EXIT',{badarg,_}} = list_to_binary(List),
Bin = list_to_bitstring(List),
{Bin,bitstring_to_list(Bin)}.
bad_list_to_binary(suite) -> [];
bad_list_to_binary(Config) when is_list(Config) ->
?line test_bad_bin(atom),
?line test_bad_bin(42),
?line test_bad_bin([1|2]),
?line test_bad_bin([256]),
?line test_bad_bin([255, [256]]),
?line test_bad_bin([-1]),
?line test_bad_bin([atom_in_list]),
?line test_bad_bin([[<<8>>]|bad_tail]),
{'EXIT',{badarg,_}} = (catch list_to_binary(id(<<1,2,3>>))),
{'EXIT',{badarg,_}} = (catch list_to_binary(id([<<42:7>>]))),
{'EXIT',{badarg,_}} = (catch list_to_bitstring(id(<<1,2,3>>))),
%% Funs used to be implemented as a type of binary internally.
?line test_bad_bin(fun(X, Y) -> X*Y end),
?line test_bad_bin([1,fun(X) -> X + 1 end,2|fun() -> 0 end]),
?line test_bad_bin([fun(X) -> X + 1 end]),
%% Test iolists that do not fit in the address space.
%% Unfortunately, it would be too slow to test in a 64-bit emulator.
case erlang:system_info(wordsize) of
4 -> huge_iolists();
_ -> ok
end.
huge_iolists() ->
FourGigs = 1 bsl 32,
?line Sizes = [FourGigs+N || N <- lists:seq(0, 64)] ++
[1 bsl N || N <- lists:seq(33, 37)],
?line Base = <<0:(1 bsl 20)/unit:8>>,
[begin
L = build_iolist(Sz, Base),
?line {'EXIT',{system_limit,_}} = (catch list_to_binary([L])),
?line {'EXIT',{system_limit,_}} = (catch binary:list_to_bin([L])),
?line {'EXIT',{system_limit,_}} = (catch iolist_to_binary(L))
end || Sz <- Sizes],
ok.
test_bad_bin(List) ->
{'EXIT',{badarg,_}} = (catch list_to_binary(List)),
{'EXIT',{badarg,_}} = (catch iolist_to_binary(List)),
{'EXIT',{badarg,_}} = (catch list_to_bitstring(List)),
{'EXIT',{badarg,_}} = (catch iolist_size(List)).
bad_binary_to_list(doc) -> "Tries binary_to_list/1,3 with bad arguments.";
bad_binary_to_list(Config) when is_list(Config) ->
?line bad_bin_to_list(fun(X) -> X * 42 end),
GoodBin = list_to_binary(lists:seq(1, 10)),
?line bad_bin_to_list(fun(X) -> X * 44 end, 1, 2),
?line bad_bin_to_list(GoodBin, 0, 1),
?line bad_bin_to_list(GoodBin, 2, 1),
?line bad_bin_to_list(GoodBin, 11, 11),
{'EXIT',{badarg,_}} = (catch binary_to_list(id(<<42:7>>))),
ok.
bad_bin_to_list(BadBin) ->
{'EXIT',{badarg,_}} = (catch binary_to_list(BadBin)),
{'EXIT',{badarg,_}} = (catch bitstring_to_list(BadBin)).
bad_bin_to_list(Bin, First, Last) ->
{'EXIT',{badarg,_}} = (catch binary_to_list(Bin, First, Last)).
%% Tries to split a binary at all possible positions.
t_split_binary(suite) -> [];
t_split_binary(Config) when is_list(Config) ->
?line L = lists:seq(0, ?heap_binary_size-5), %Heap binary.
?line B = list_to_binary(L),
?line split(L, B, size(B)),
%% Sub binary of heap binary.
?line split(L, make_sub_binary(B), size(B)),
{X,_Y} = split_binary(B, size(B) div 2),
?line split(binary_to_list(X), X, size(X)),
%% Unaligned sub binary of heap binary.
?line split(L, make_unaligned_sub_binary(B), size(B)),
{X,_Y} = split_binary(B, size(B) div 2),
?line split(binary_to_list(X), X, size(X)),
%% Reference-counted binary.
?line L2 = lists:seq(0, ?heap_binary_size+1),
?line B2 = list_to_binary(L2),
?line split(L2, B2, size(B2)),
%% Sub binary of reference-counted binary.
?line split(L2, make_sub_binary(B2), size(B2)),
{X2,_Y2} = split_binary(B2, size(B2) div 2),
?line split(binary_to_list(X2), X2, size(X2)),
%% Unaligned sub binary of reference-counted binary.
?line split(L2, make_unaligned_sub_binary(B2), size(B2)),
{X2,_Y2} = split_binary(B2, size(B2) div 2),
?line split(binary_to_list(X2), X2, size(X2)),
ok.
split(L, B, Pos) when Pos > 0 ->
?line {B1, B2} = split_binary(B, Pos),
?line B1 = list_to_binary(lists:sublist(L, 1, Pos)),
?line B2 = list_to_binary(lists:nthtail(Pos, L)),
?line split(L, B, Pos-1);
split(_L, _B, 0) ->
ok.
bad_split(doc) -> "Tries split_binary/2 with bad arguments.";
bad_split(suite) -> [];
bad_split(Config) when is_list(Config) ->
GoodBin = list_to_binary([1,2,3]),
?line bad_split(GoodBin, -1),
?line bad_split(GoodBin, 4),
?line bad_split(GoodBin, a),
%% Funs are a kind of binaries.
?line bad_split(fun(_X) -> 1 end, 1),
ok.
bad_split(Bin, Pos) ->
{'EXIT',{badarg,_}} = (catch split_binary(Bin, Pos)).
%% Tests concat_binary/2 and size/1.
t_concat_binary(suite) -> [];
t_concat_binary(Config) when is_list(Config) ->
test_concat([]),
test_concat([[]]),
test_concat([[], []]),
test_concat([[], [], []]),
test_concat([[1], []]),
test_concat([[], [2]]),
test_concat([[], [3], []]),
test_concat([[1, 2, 3], [4, 5, 6, 7]]),
test_concat([[1, 2, 3], [4, 5, 6, 7], [9, 10]]),
test_concat([lists:seq(0, 255), lists:duplicate(1024, $@),
lists:duplicate(2048, $a),
lists:duplicate(4000, $b)]),
ok.
test_concat(Lists) ->
test_concat(Lists, 0, [], []).
test_concat([List|Rest], Size, Combined, Binaries) ->
?line Bin = list_to_binary(List),
?line test_concat(Rest, Size+length(List), Combined++List, [Bin|Binaries]);
test_concat([], Size, Combined, Binaries0) ->
?line Binaries = lists:reverse(Binaries0),
?line Bin = concat_binary(Binaries),
?line Size = size(Bin),
?line Size = iolist_size(Bin),
?line Combined = binary_to_list(Bin).
t_hash(doc) -> "Test hash/2 with different type of binaries.";
t_hash(Config) when is_list(Config) ->
test_hash([]),
test_hash([253]),
test_hash(lists:seq(1, ?heap_binary_size)),
test_hash(lists:seq(1, ?heap_binary_size+1)),
test_hash([X rem 256 || X <- lists:seq(1, 312)]),
ok.
test_hash(List) ->
Bin = list_to_binary(List),
Sbin = make_sub_binary(List),
Unaligned = make_unaligned_sub_binary(Sbin),
?line test_hash_1(Bin, Sbin, Unaligned, fun erlang:hash/2),
?line test_hash_1(Bin, Sbin, Unaligned, fun erlang:phash/2),
?line test_hash_1(Bin, Sbin, Unaligned, fun erlang:phash2/2).
test_hash_1(Bin, Sbin, Unaligned, Hash) when is_function(Hash, 2) ->
N = 65535,
case {Hash(Bin, N),Hash(Sbin, N),Hash(Unaligned, N)} of
{H,H,H} -> ok;
{H1,H2,H3} ->
io:format("Different hash values: ~p, ~p, ~p\n", [H1,H2,H3]),
?t:fail()
end.
bad_size(doc) -> "Try bad arguments to size/1.";
bad_size(suite) -> [];
bad_size(Config) when is_list(Config) ->
?line {'EXIT',{badarg,_}} = (catch size(fun(X) -> X + 33 end)),
ok.
bad_term_to_binary(Config) when is_list(Config) ->
T = id({a,b,c}),
?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, not_a_list)),
?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, [blurf])),
?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, [{compressed,-1}])),
?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, [{compressed,10}])),
?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, [{compressed,cucumber}])),
?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, [{compressed}])),
?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, [{version,1}|bad_tail])),
?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, [{minor_version,-1}])),
?line {'EXIT',{badarg,_}} = (catch term_to_binary(T, [{minor_version,x}])),
ok.
%% Tests binary_to_term/1 and term_to_binary/1.
terms(Config) when is_list(Config) ->
TestFun = fun(Term) ->
try
S = io_lib:format("~p", [Term]),
io:put_chars(S)
catch
error:badarg ->
io:put_chars("bit sized binary")
end,
Bin = term_to_binary(Term),
case erlang:external_size(Bin) of
Sz when is_integer(Sz), size(Bin) =< Sz ->
ok
end,
Term = binary_to_term(Bin),
Term = binary_to_term(Bin, [safe]),
Unaligned = make_unaligned_sub_binary(Bin),
Term = binary_to_term(Unaligned),
Term = binary_to_term(Unaligned, []),
Term = binary_to_term(Bin, [safe]),
BinC = erlang:term_to_binary(Term, [compressed]),
Term = binary_to_term(BinC),
true = size(BinC) =< size(Bin),
Bin = term_to_binary(Term, [{compressed,0}]),
terms_compression_levels(Term, size(Bin), 1),
UnalignedC = make_unaligned_sub_binary(BinC),
Term = binary_to_term(UnalignedC)
end,
?line test_terms(TestFun),
ok.
terms_compression_levels(Term, UncompressedSz, Level) when Level < 10 ->
BinC = erlang:term_to_binary(Term, [{compressed,Level}]),
Term = binary_to_term(BinC),
Sz = byte_size(BinC),
true = Sz =< UncompressedSz,
terms_compression_levels(Term, UncompressedSz, Level+1);
terms_compression_levels(_, _, _) -> ok.
terms_float(Config) when is_list(Config) ->
?line test_floats(fun(Term) ->
Bin0 = term_to_binary(Term),
Bin0 = term_to_binary(Term, [{minor_version,0}]),
Term = binary_to_term(Bin0),
Bin1 = term_to_binary(Term, [{minor_version,1}]),
Term = binary_to_term(Bin1),
true = size(Bin1) < size(Bin0)
end).
external_size(Config) when is_list(Config) ->
%% Build a term whose external size only fits in a big num (on 32-bit CPU).
?line external_size_1(16#11111111111111117777777777777777888889999, 0, 16#FFFFFFF),
%% Test that the same binary aligned and unaligned has the same external size.
?line Bin = iolist_to_binary([1,2,3,96]),
?line Unaligned = make_unaligned_sub_binary(Bin),
case {erlang:external_size(Bin),erlang:external_size(Unaligned)} of
{X,X} -> ok;
{Sz1,Sz2} ->
io:format(" Aligned size: ~p\n", [Sz1]),
io:format("Unaligned size: ~p\n", [Sz2]),
?line ?t:fail()
end.
external_size_1(Term, Size0, Limit) when Size0 < Limit ->
case erlang:external_size(Term) of
Size when is_integer(Size), Size0 < Size ->
io:format("~p", [Size]),
external_size_1([Term|Term], Size, Limit)
end;
external_size_1(_, _, _) -> ok.
t_iolist_size(Config) when is_list(Config) ->
?line Seed = now(),
?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],
%% 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),
io:format("~p sizes:", [length(Sizes)]),
io:format("~p\n", [Sizes]),
?line [Sz = iolist_size(build_iolist(Sz, Base)) || Sz <- Sizes],
ok.
build_iolist(N, Base) when N < 16 ->
case random:uniform(3) of
1 ->
<<Bin:N/binary,_/binary>> = Base,
Bin;
_ ->
lists:seq(1, N)
end;
build_iolist(N, Base) when N =< byte_size(Base) ->
case random:uniform(3) of
1 ->
<<Bin:N/binary,_/binary>> = Base,
Bin;
2 ->
<<Bin:N/binary,_/binary>> = Base,
[Bin];
3 ->
case N rem 2 of
0 ->
L = build_iolist(N div 2, Base),
[L,L];
1 ->
L = build_iolist(N div 2, Base),
[L,L,45]
end
end;
build_iolist(N0, Base) ->
Small = random:uniform(15),
Seq = lists:seq(1, Small),
N = N0 - Small,
case N rem 2 of
0 ->
L = build_iolist(N div 2, Base),
[L,L|Seq];
1 ->
L = build_iolist(N div 2, Base),
[47,L,L|Seq]
end.
bad_binary_to_term_2(doc) -> "OTP-4053.";
bad_binary_to_term_2(suite) -> [];
bad_binary_to_term_2(Config) when is_list(Config) ->
?line {ok, N} = test_server:start_node(plopp, slave, []),
?line R = rpc:call(N, erlang, binary_to_term, [<<131,111,255,255,255,0>>]),
?line case R of
{badrpc, {'EXIT', _}} ->
ok;
_Other ->
test_server:fail({rpcresult, R})
end,
?line test_server:stop_node(N),
ok.
bad_binary_to_term(doc) -> "Try bad input to binary_to_term/1.";
bad_binary_to_term(Config) when is_list(Config) ->
?line bad_bin_to_term(an_atom),
?line bad_bin_to_term({an,tuple}),
?line bad_bin_to_term({a,list}),
?line bad_bin_to_term(fun() -> self() end),
?line bad_bin_to_term(fun(X) -> 42*X end),
?line bad_bin_to_term(fun(X, Y) -> {X,Y} end),
?line bad_bin_to_term(fun(X, Y, Z) -> {X,Y,Z} end),
?line bad_bin_to_term(bit_sized_binary(term_to_binary({you,should,'not',see,this,term}))),
%% Bad float.
?line bad_bin_to_term(<<131,70,-1:64>>),
ok.
bad_bin_to_term(BadBin) ->
{'EXIT',{badarg,_}} = (catch binary_to_term(BadBin)).
bad_bin_to_term(BadBin,Opts) ->
{'EXIT',{badarg,_}} = (catch binary_to_term(BadBin,Opts)).
safe_binary_to_term2(doc) -> "Test safety options for binary_to_term/2";
safe_binary_to_term2(Config) when is_list(Config) ->
?line bad_bin_to_term(<<131,100,0,14,"undefined_atom">>, [safe]),
?line bad_bin_to_term(<<131,100,0,14,"other_bad_atom">>, [safe]),
BadHostAtom = <<100,0,14,"badguy@badhost">>,
Empty = <<0,0,0,0>>,
BadRef = <<131,114,0,3,BadHostAtom/binary,0,<<0,0,0,255>>/binary,
Empty/binary,Empty/binary>>,
?line bad_bin_to_term(BadRef, [safe]), % good ref, with a bad atom
?line fullsweep_after = binary_to_term(<<131,100,0,15,"fullsweep_after">>, [safe]), % should be a good atom
BadExtFun = <<131,113,100,0,4,98,108,117,101,100,0,4,109,111,111,110,97,3>>,
?line bad_bin_to_term(BadExtFun, [safe]),
ok.
%% Tests bad input to binary_to_term/1.
bad_terms(suite) -> [];
bad_terms(Config) when is_list(Config) ->
?line test_terms(fun corrupter/1).
corrupter(Term) ->
?line try
S = io_lib:format("About to corrupt: ~P", [Term,12]),
io:put_chars(S)
catch
error:badarg ->
io:format("About to corrupt: <<bit-level-binary:~p",
[bit_size(Term)])
end,
?line Bin = term_to_binary(Term),
?line corrupter(Bin, size(Bin)-1),
?line CompressedBin = term_to_binary(Term, [compressed]),
?line corrupter(CompressedBin, size(CompressedBin)-1).
corrupter(Bin, Pos) when Pos >= 0 ->
?line {ShorterBin, Rest} = split_binary(Bin, Pos),
?line catch binary_to_term(ShorterBin), %% emulator shouldn't crash
?line MovedBin = list_to_binary([ShorterBin]),
?line catch binary_to_term(MovedBin), %% emulator shouldn't crash
%% Bit faults, shouldn't crash
<<Byte,Tail/binary>> = Rest,
Fun = fun(M) -> FaultyByte = Byte bxor M,
catch binary_to_term(<<ShorterBin/binary,
FaultyByte, Tail/binary>>) end,
?line lists:foreach(Fun,[1,2,4,8,16,32,64,128,255]),
?line corrupter(Bin, Pos-1);
corrupter(_Bin, _) ->
ok.
more_bad_terms(suite) -> [];
more_bad_terms(Config) when is_list(Config) ->
?line Data = ?config(data_dir, Config),
?line BadFile = filename:join(Data, "bad_binary"),
?line ok = io:format("File: ~s\n", [BadFile]),
?line case file:read_file(BadFile) of
{ok,Bin} ->
?line {'EXIT',{badarg,_}} = (catch binary_to_term(Bin)),
ok;
Other ->
?line ?t:fail(Other)
end.
otp_5484(Config) when is_list(Config) ->
?line {'EXIT',_} =
(catch
binary_to_term(
<<131,
104,2, %Tuple, 2 elements
103, %Pid
100,0,20,"wslin1427198@wslin14",
%% Obviously bad values follow.
255,255,255,255,
255,255,255,255,
255,
106>>)),
?line {'EXIT',_} =
(catch
binary_to_term(
<<131,
104,2, %Tuple, 2 elements
103, %Pid
106, %[] instead of atom.
0,0,0,17,
0,0,0,135,
2,
106>>)),
?line {'EXIT',_} =
(catch
binary_to_term(
%% A old-type fun in a list containing a bad creator pid.
<<131,108,0,0,0,1,117,0,0,0,0,103,100,0,13,110,111,110,111,100,101,64,110,111,104,111,115,116,255,255,0,25,255,0,0,0,0,100,0,1,116,97,0,98,6,142,121,72,106>>)),
?line {'EXIT',_} =
(catch
binary_to_term(
%% A new-type fun in a list containing a bad creator pid.
%%
<<131,
108,0,0,0,1, %List, 1 element
112,0,0,0,66,0,52,216,81,158,148,250,237,109,185,9,208,60,202,156,244,218,0,0,0,0,0,0,0,0,100,0,1,116,97,0,98,6,142,121,72,
103, %Pid.
106, %[] instead of an atom.
0,0,0,27,0,0,0,0,0,106>>)),
?line {'EXIT',_} =
(catch
binary_to_term(
%% A new-type fun in a list containing a bad module.
<<131,
108,0,0,0,1, %List, 1 element
112,0,0,0,70,0,224,90,4,101,48,28,110,228,153,48,239,169,232,77,108,145,0,0,0,0,0,0,0,2,
%%100,0,1,116,
107,0,1,64, %String instead of atom (same length).
97,0,98,6,64,82,230,103,100,0,13,110,111,110,111,100,101,64,110,111,104,111,115,116,0,0,0,48,0,0,0,0,0,97,42,97,7,106>>)),
?line {'EXIT',_} =
(catch
binary_to_term(
%% A new-type fun in a list containing a bad index.
<<131,
108,0,0,0,1, %List, 1 element
112,0,0,0,70,0,224,90,4,101,48,28,110,228,153,48,239,169,232,77,108,145,0,0,0,0,0,0,0,2,
100,0,1,116,
%%97,0, %Integer: 0.
104,0, %Tuple {} instead of integer.
98,6,64,82,230,103,100,0,13,110,111,110,111,100,101,64,110,111,104,111,115,116,0,0,0,48,0,0,0,0,0,97,42,97,7,106>>)),
?line {'EXIT',_} =
(catch
binary_to_term(
%% A new-type fun in a list containing a bad unique value.
<<131,
108,0,0,0,1, %List, 1 element
112,0,0,0,70,0,224,90,4,101,48,28,110,228,153,48,239,169,232,77,108,145,0,0,0,0,0,0,0,2,
100,0,1,116,
97,0, %Integer: 0.
%%98,6,64,82,230, %Integer.
100,0,2,64,65, %Atom instead of integer.
103,100,0,13,110,111,110,111,100,101,64,110,111,104,111,115,116,0,0,0,48,0,0,0,0,0,97,42,97,7,106>>)),
%% An absurdly large atom.
?line {'EXIT',_} =
(catch binary_to_term(iolist_to_binary([<<131,100,65000:16>>|
lists:duplicate(65000, 42)]))),
%% Longer than 255 characters.
?line {'EXIT',_} =
(catch binary_to_term(iolist_to_binary([<<131,100,256:16>>|
lists:duplicate(256, 42)]))),
%% OTP-7218. Thanks to Matthew Dempsky. Also make sure that we
%% cover the other error cases for external funs (EXPORT_EXT).
?line {'EXIT',_} =
(catch binary_to_term(
<<131,
113, %EXPORT_EXP
97,13, %Integer: 13
97,13, %Integer: 13
97,13>>)), %Integer: 13
?line {'EXIT',_} =
(catch binary_to_term(
<<131,
113, %EXPORT_EXP
100,0,1,64, %Atom: '@'
97,13, %Integer: 13
97,13>>)), %Integer: 13
?line {'EXIT',_} =
(catch binary_to_term(
<<131,
113, %EXPORT_EXP
100,0,1,64, %Atom: '@'
100,0,1,64, %Atom: '@'
106>>)), %NIL
?line {'EXIT',_} =
(catch binary_to_term(
<<131,
113, %EXPORT_EXP
100,0,1,64, %Atom: '@'
100,0,1,64, %Atom: '@'
98,255,255,255,255>>)), %Integer: -1
?line {'EXIT',_} =
(catch binary_to_term(
<<131,
113, %EXPORT_EXP
100,0,1,64, %Atom: '@'
100,0,1,64, %Atom: '@'
113,97,13,97,13,97,13>>)), %fun 13:13/13
%% Bad funs.
?line {'EXIT',_} = (catch binary_to_term(fake_fun(0, lists:seq(0, 256)))),
ok.
fake_fun(Arity, Env0) ->
Uniq = erlang:md5([]),
Index = 0,
NumFree = length(Env0),
Mod = list_to_binary(?MODULE_STRING),
OldIndex = 0,
OldUniq = 16#123456,
<<131,Pid/binary>> = term_to_binary(self()),
Env1 = [term_to_binary(Term) || Term <- Env0],
Env = << <<Bin/binary>> || <<131,Bin/binary>> <- Env1 >>,
B = <<Arity,Uniq/binary,Index:32,NumFree:32,
$d,(byte_size(Mod)):16,Mod/binary, %Module.
$a,OldIndex:8,
$b,OldUniq:32,
Pid/binary,Env/binary>>,
<<131,$p,(byte_size(B)+4):32,B/binary>>.
%% More bad terms submitted by Matthias Lang.
otp_5933(Config) when is_list(Config) ->
?line try_bad_lengths(<<131,$m>>), %binary
?line try_bad_lengths(<<131,$n>>), %bignum
?line try_bad_lengths(<<131,$o>>), %huge bignum
ok.
try_bad_lengths(B) ->
try_bad_lengths(B, 16#FFFFFFFF).
try_bad_lengths(B, L) when L > 16#FFFFFFF0 ->
Bin = <<B/binary,L:32>>,
io:format("~p\n", [Bin]),
{'EXIT',_} = (catch binary_to_term(Bin)),
try_bad_lengths(B, L-1);
try_bad_lengths(_, _) -> ok.
otp_6817(Config) when is_list(Config) ->
process_flag(min_heap_size, 20000), %Use the heap, not heap fragments.
%% Floats are only validated when the heap fragment has been allocated.
BadFloat = <<131,99,53,46,48,$X,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,48,101,45,48,49,0,0,0,0,0>>,
?line otp_6817_try_bin(BadFloat),
%% {Binary,BadFloat}: When the error in float is discovered, a refc-binary
%% has been allocated and the list of refc-binaries goes through the
%% limbo area between the heap top and stack.
BinAndFloat =
<<131,104,2,109,0,0,1,0,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,
21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,
46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,
71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,
96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,
116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133,134,
135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,
154,155,156,157,158,159,160,161,162,163,164,165,166,167,168,169,170,171,172,
173,174,175,176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,
192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,
211,212,213,214,215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,
230,231,232,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,
249,250,251,252,253,254,255,99,51,46,49,52,$B,$l,$u,$r,$f,48,48,48,48,48,48,
48,48,49,50,52,51,52,101,43,48,48,0,0,0,0,0>>,
?line otp_6817_try_bin(BinAndFloat),
%% {Fun,BadFloat}
FunAndFloat =
<<131,104,2,112,0,0,0,66,0,238,239,135,138,137,216,89,57,22,111,52,126,16,84,
71,8,0,0,0,0,0,0,0,0,100,0,1,116,97,0,98,5,175,169,123,103,100,0,13,110,111,
110,111,100,101,64,110,111,104,111,115,116,0,0,0,41,0,0,0,0,0,99,50,46,55,48,
$Y,57,57,57,57,57,57,57,57,57,57,57,57,57,54,52,52,55,101,43,48,48,0,0,0,0,0>>,
?line otp_6817_try_bin(FunAndFloat),
%% [ExternalPid|BadFloat]
ExtPidAndFloat =
<<131,108,0,0,0,1,103,100,0,13,107,97,108,108,101,64,115,116,114,105,100,101,
114,0,0,0,36,0,0,0,0,2,99,48,46,$@,48,48,48,48,48,48,48,48,48,48,48,48,48,48,
48,48,48,48,48,101,43,48,48,0,0,0,0,0>>,
?line otp_6817_try_bin(ExtPidAndFloat),
ok.
otp_6817_try_bin(Bin) ->
erlang:garbage_collect(),
%% If the bug is present, the heap pointer will moved when the invalid term
%% is found and we will have a linked list passing through the limbo area
%% between the heap top and the stack pointer.
catch binary_to_term(Bin),
%% If the bug is present, we will overwrite the pointers in the limbo area.
Filler = erlang:make_tuple(1024, 16#3FA),
id(Filler),
%% Will crash if the bug is present.
erlang:garbage_collect().
otp_8117(doc) -> "Some bugs in binary_to_term when 32-bit integers are negative.";
otp_8117(suite) -> [];
otp_8117(Config) when is_list(Config) ->
[otp_8117_do(Op,-(1 bsl N)) || Op <- ['fun',list,tuple],
N <- lists:seq(0,31)],
ok.
otp_8117_do('fun',Neg) ->
% Fun with negative num_free
FunBin = term_to_binary(fun() -> ok end),
?line <<B1:27/binary,_NumFree:32,Rest/binary>> = FunBin,
?line bad_bin_to_term(<<B1/binary,Neg:32,Rest/binary>>);
otp_8117_do(list,Neg) ->
%% List with negative length
?line bad_bin_to_term(<<131,104,2,108,Neg:32,97,11,104,1,97,12,97,13,106,97,14>>);
otp_8117_do(tuple,Neg) ->
%% Tuple with negative arity
?line bad_bin_to_term(<<131,104,2,105,Neg:32,97,11,97,12,97,13,97,14>>).
ordering(doc) -> "Tests ordering of binaries.";
ordering(suite) -> [];
ordering(Config) when is_list(Config) ->
B1 = list_to_binary([7,8,9]),
B2 = make_sub_binary([1,2,3,4]),
B3 = list_to_binary([1,2,3,5]),
Unaligned = make_unaligned_sub_binary(B2),
%% From R8 binaries are compared as strings.
?line false = B1 == B2,
?line false = B1 =:= B2,
?line true = B1 /= B2,
?line true = B1 =/= B2,
?line true = B1 > B2,
?line true = B2 < B3,
?line true = B2 =< B1,
?line true = B2 =< B3,
?line true = B2 =:= Unaligned,
?line true = B2 == Unaligned,
?line true = Unaligned < B3,
?line true = Unaligned =< B3,
%% Binaries are greater than all other terms.
?line true = B1 > 0,
?line true = B1 > 39827491247298471289473333333333333333333333333333,
?line true = B1 > -3489274937438742190467869234328742398347,
?line true = B1 > 3.14,
?line true = B1 > [],
?line true = B1 > [a],
?line true = B1 > {a},
?line true = B1 > self(),
?line true = B1 > make_ref(),
?line true = B1 > xxx,
?line true = B1 > fun() -> 1 end,
?line true = B1 > fun erlang:send/2,
?line Path = ?config(priv_dir, Config),
?line AFile = filename:join(Path, "vanilla_file"),
?line Port = open_port(AFile, [out]),
?line true = B1 > Port,
?line true = B1 >= 0,
?line true = B1 >= 39827491247298471289473333333333333333333333333333,
?line true = B1 >= -3489274937438742190467869234328742398347,
?line true = B1 >= 3.14,
?line true = B1 >= [],
?line true = B1 >= [a],
?line true = B1 >= {a},
?line true = B1 >= self(),
?line true = B1 >= make_ref(),
?line true = B1 >= xxx,
?line true = B1 >= fun() -> 1 end,
?line true = B1 >= fun erlang:send/2,
?line true = B1 >= Port,
ok.
%% Test that comparisions between binaries with different alignment work.
unaligned_order(Config) when is_list(Config) ->
L = lists:seq(0, 7),
[test_unaligned_order(I, J) || I <- L, J <- L],
ok.
test_unaligned_order(I, J) ->
Align = {I,J},
io:format("~p ~p", [I,J]),
?line true = test_unaligned_order_1('=:=', <<1,2,3,16#AA,16#7C,4,16#5F,5,16#5A>>,
<<1,2,3,16#AA,16#7C,4,16#5F,5,16#5A>>,
Align),
?line false = test_unaligned_order_1('=/=', <<1,2,3>>, <<1,2,3>>, Align),
?line true = test_unaligned_order_1('==', <<4,5,6>>, <<4,5,6>>, Align),
?line false = test_unaligned_order_1('/=', <<1,2,3>>, <<1,2,3>>, Align),
?line true = test_unaligned_order_1('<', <<1,2>>, <<1,2,3>>, Align),
?line true = test_unaligned_order_1('=<', <<1,2>>, <<1,2,3>>, Align),
?line true = test_unaligned_order_1('=<', <<1,2,7,8>>, <<1,2,7,8>>, Align),
ok.
test_unaligned_order_1(Op, A, B, {Aa,Ba}) ->
erlang:Op(unaligned_sub_bin(A, Aa), unaligned_sub_bin(B, Ba)).
test_terms(Test_Func) ->
?line Test_Func(atom),
?line Test_Func(''),
?line Test_Func('a'),
?line Test_Func('ab'),
?line Test_Func('abc'),
?line Test_Func('abcd'),
?line Test_Func('abcde'),
?line Test_Func('abcdef'),
?line Test_Func('abcdefg'),
?line Test_Func('abcdefgh'),
?line Test_Func(fun() -> ok end),
X = id([a,{b,c},c]),
Y = id({x,y,z}),
Z = id(1 bsl 8*257),
?line Test_Func(fun() -> X end),
?line Test_Func(fun() -> {X,Y} end),
?line Test_Func([fun() -> {X,Y,Z} end,
fun() -> {Z,X,Y} end,
fun() -> {Y,Z,X} end]),
?line Test_Func({trace_ts,{even_bigger,{some_data,fun() -> ok end}},{1,2,3}}),
?line Test_Func({trace_ts,{even_bigger,{some_data,<<1,2,3,4,5,6,7,8,9,10>>}},
{1,2,3}}),
?line Test_Func(1),
?line Test_Func(42),
?line Test_Func(-23),
?line Test_Func(256),
?line Test_Func(25555),
?line Test_Func(-3333),
?line Test_Func(1.0),
?line Test_Func(183749783987483978498378478393874),
?line Test_Func(-37894183749783987483978498378478393874),
Very_Big = very_big_num(),
?line Test_Func(Very_Big),
?line Test_Func(-Very_Big+1),
?line Test_Func([]),
?line Test_Func("abcdef"),
?line Test_Func([a, b, 1, 2]),
?line Test_Func([a|b]),
?line Test_Func({}),
?line Test_Func({1}),
?line Test_Func({a, b}),
?line Test_Func({a, b, c}),
?line Test_Func(list_to_tuple(lists:seq(0, 255))),
?line Test_Func(list_to_tuple(lists:seq(0, 256))),
?line Test_Func(make_ref()),
?line Test_Func([make_ref(), make_ref()]),
?line Test_Func(make_port()),
?line Test_Func(make_pid()),
?line Test_Func(Bin0 = list_to_binary(lists:seq(0, 14))),
?line Test_Func(Bin1 = list_to_binary(lists:seq(0, ?heap_binary_size))),
?line Test_Func(Bin2 = list_to_binary(lists:seq(0, ?heap_binary_size+1))),
?line Test_Func(Bin3 = list_to_binary(lists:seq(0, 255))),
?line Test_Func(make_unaligned_sub_binary(Bin0)),
?line Test_Func(make_unaligned_sub_binary(Bin1)),
?line Test_Func(make_unaligned_sub_binary(Bin2)),
?line Test_Func(make_unaligned_sub_binary(Bin3)),
?line Test_Func(make_sub_binary(lists:seq(42, 43))),
?line Test_Func(make_sub_binary([42,43,44])),
?line Test_Func(make_sub_binary([42,43,44,45])),
?line Test_Func(make_sub_binary([42,43,44,45,46])),
?line Test_Func(make_sub_binary([42,43,44,45,46,47])),
?line Test_Func(make_sub_binary([42,43,44,45,46,47,48])),
?line Test_Func(make_sub_binary(lists:seq(42, 49))),
?line Test_Func(make_sub_binary(lists:seq(0, 14))),
?line Test_Func(make_sub_binary(lists:seq(0, ?heap_binary_size))),
?line Test_Func(make_sub_binary(lists:seq(0, ?heap_binary_size+1))),
?line Test_Func(make_sub_binary(lists:seq(0, 255))),
?line Test_Func(make_unaligned_sub_binary(lists:seq(42, 43))),
?line Test_Func(make_unaligned_sub_binary([42,43,44])),
?line Test_Func(make_unaligned_sub_binary([42,43,44,45])),
?line Test_Func(make_unaligned_sub_binary([42,43,44,45,46])),
?line Test_Func(make_unaligned_sub_binary([42,43,44,45,46,47])),
?line Test_Func(make_unaligned_sub_binary([42,43,44,45,46,47,48])),
?line Test_Func(make_unaligned_sub_binary(lists:seq(42, 49))),
?line Test_Func(make_unaligned_sub_binary(lists:seq(0, 14))),
?line Test_Func(make_unaligned_sub_binary(lists:seq(0, ?heap_binary_size))),
?line Test_Func(make_unaligned_sub_binary(lists:seq(0, ?heap_binary_size+1))),
?line Test_Func(make_unaligned_sub_binary(lists:seq(0, 255))),
%% Bit level binaries.
?line Test_Func(<<1:1>>),
?line Test_Func(<<2:2>>),
?line Test_Func(<<42:10>>),
?line Test_Func(list_to_bitstring([<<5:6>>|lists:seq(0, 255)])),
?line Test_Func(F = fun(A) -> 42*A end),
?line Test_Func(lists:duplicate(32, F)),
?line Test_Func(FF = fun binary_SUITE:all/0),
?line Test_Func(lists:duplicate(32, FF)),
ok.
test_floats(Test_Func) ->
?line Test_Func(5.5),
?line Test_Func(-15.32),
?line Test_Func(1.2435e25),
?line Test_Func(1.2333e-20),
?line Test_Func(199.0e+15),
ok.
very_big_num() ->
very_big_num(33, 1).
very_big_num(Left, Result) when Left > 0 ->
?line very_big_num(Left-1, Result*256);
very_big_num(0, Result) ->
?line Result.
make_port() ->
?line open_port({spawn, efile}, [eof]).
make_pid() ->
?line spawn_link(?MODULE, sleeper, []).
sleeper() ->
?line receive after infinity -> ok end.
gc_test(doc) -> "Test that binaries are garbage collected properly.";
gc_test(suite) -> [];
gc_test(Config) when is_list(Config) ->
case erlang:system_info(heap_type) of
private -> gc_test_1();
hybrid -> {skip,"Hybrid heap"}
end.
gc_test_1() ->
%% Note: This test is only relevant for REFC binaries.
%% Therefore, we take care that all binaries are REFC binaries.
B = list_to_binary(lists:seq(0, ?heap_binary_size)),
Self = self(),
F1 = fun() ->
gc(),
{binary,[]} = process_info(self(), binary),
Self ! {self(),done}
end,
F = fun() ->
receive go -> ok end,
{binary,[{_,65,1}]} = process_info(self(), binary),
gc(),
{B1,B2} = my_split_binary(B, 4),
gc(),
gc(),
{binary,L1} = process_info(self(), binary),
[Binfo1,Binfo2,Binfo3] = L1,
{_,65,3} = Binfo1 = Binfo2 = Binfo3,
65 = size(B),
4 = size(B1),
61 = size(B2),
F1()
end,
gc(),
gc(),
65 = size(B),
gc_test1(spawn_opt(erlang, apply, [F,[]], [link,{fullsweep_after,0}])).
gc_test1(Pid) ->
gc(),
Pid ! go,
receive
{Pid,done} -> ok
after 10000 ->
?line ?t:fail()
end.
%% Like split binary, but returns REFC binaries. Only useful for gc_test/1.
my_split_binary(B, Pos) ->
Self = self(),
Ref = make_ref(),
spawn(fun() -> Self ! {Ref,split_binary(B, Pos)} end),
receive
{Ref,Result} -> Result
end.
gc() ->
erlang:garbage_collect(),
gc1().
gc1() -> ok.
bit_sized_binary_sizes(Config) when is_list(Config) ->
?line [bsbs_1(A) || A <- lists:seq(0, 7)],
ok.
bsbs_1(0) ->
BinSize = 32+8,
io:format("A: ~p BinSize: ~p", [0,BinSize]),
Bin = binary_to_term(<<131,$M,5:32,0,0,0,0,0,0>>),
BinSize = bit_size(Bin);
bsbs_1(A) ->
BinSize = 32+A,
io:format("A: ~p BinSize: ~p", [A,BinSize]),
Bin = binary_to_term(<<131,$M,5:32,A,0,0,0,0,0>>),
BinSize = bit_size(Bin).
deep(Config) when is_list(Config) ->
?line deep_roundtrip(lists:foldl(fun(E, A) ->
[E,A]
end, [], lists:seq(1, 1000000))),
?line deep_roundtrip(lists:foldl(fun(E, A) ->
{E,A}
end, [], lists:seq(1, 1000000))),
?line deep_roundtrip(lists:foldl(fun(E, A) ->
fun() -> {E,A} end
end, [], lists:seq(1, 1000000))),
ok.
deep_roundtrip(T) ->
B = term_to_binary(T),
T = binary_to_term(B).
obsolete_funs(Config) when is_list(Config) ->
erts_debug:set_internal_state(available_internal_state, true),
X = id({1,2,3}),
Y = id([a,b,c,d]),
Z = id({x,y,z}),
?line obsolete_fun(fun() -> ok end),
?line obsolete_fun(fun() -> X end),
?line obsolete_fun(fun(A) -> {A,X} end),
?line obsolete_fun(fun() -> {X,Y} end),
?line obsolete_fun(fun() -> {X,Y,Z} end),
?line obsolete_fun(fun ?MODULE:all/1),
erts_debug:set_internal_state(available_internal_state, false),
ok.
obsolete_fun(Fun) ->
Tuple = case erlang:fun_info(Fun, type) of
{type,external} ->
{module,M} = erlang:fun_info(Fun, module),
{name,F} = erlang:fun_info(Fun, name),
{M,F};
{type,local} ->
{module,M} = erlang:fun_info(Fun, module),
{index,I} = erlang:fun_info(Fun, index),
{uniq,U} = erlang:fun_info(Fun, uniq),
{env,E} = erlang:fun_info(Fun, env),
{'fun',M,I,U,list_to_tuple(E)}
end,
Tuple = no_fun_roundtrip(Fun).
no_fun_roundtrip(Term) ->
binary_to_term(erts_debug:get_internal_state({term_to_binary_no_funs,Term})).
%% Test non-standard encodings never generated by term_to_binary/1
%% but recognized by binary_to_term/1.
robustness(Config) when is_list(Config) ->
?line [] = binary_to_term(<<131,107,0,0>>), %Empty string.
?line [] = binary_to_term(<<131,108,0,0,0,0,106>>), %Zero-length list.
%% {[],a} where [] is a zero-length list.
?line {[],a} = binary_to_term(<<131,104,2,108,0,0,0,0,106,100,0,1,97>>),
%% {42,a} where 42 is a zero-length list with 42 in the tail.
?line {42,a} = binary_to_term(<<131,104,2,108,0,0,0,0,97,42,100,0,1,97>>),
%% {{x,y},a} where {x,y} is a zero-length list with {x,y} in the tail.
?line {{x,y},a} = binary_to_term(<<131,104,2,108,0,0,0,0,
104,2,100,0,1,120,100,0,1,
121,100,0,1,97>>),
%% Bignums fitting in 32 bits.
?line 16#7FFFFFFF = binary_to_term(<<131,98,127,255,255,255>>),
?line -1 = binary_to_term(<<131,98,255,255,255,255>>),
ok.
%% OTP-8180: Test several terms that have been known to crash the emulator.
%% (Thanks to Scott Lystig Fritchie.)
otp_8180(Config) when is_list(Config) ->
?line Data = ?config(data_dir, Config),
?line Wc = filename:join(Data, "zzz.*"),
Files = filelib:wildcard(Wc),
[run_otp_8180(F) || F <- Files],
ok.
run_otp_8180(Name) ->
io:format("~s", [Name]),
?line {ok,Bins} = file:consult(Name),
[begin
io:format("~p\n", [Bin]),
?line {'EXIT',{badarg,_}} = (catch binary_to_term(Bin))
end || Bin <- Bins],
ok.
%% Utilities.
make_sub_binary(Bin) when is_binary(Bin) ->
{_,B} = split_binary(list_to_binary([0,1,3,Bin]), 3),
B;
make_sub_binary(List) ->
make_sub_binary(list_to_binary(List)).
make_unaligned_sub_binary(Bin0) when is_binary(Bin0) ->
Bin1 = <<0:3,Bin0/binary,31:5>>,
Sz = size(Bin0),
<<0:3,Bin:Sz/binary,31:5>> = id(Bin1),
Bin;
make_unaligned_sub_binary(List) ->
make_unaligned_sub_binary(list_to_binary(List)).
%% Add 1 bit to the size of the binary.
bit_sized_binary(Bin0) ->
Bin = <<Bin0/binary,1:1>>,
BitSize = bit_size(Bin),
BitSize = 8*size(Bin) + 1,
Bin.
unaligned_sub_bin(Bin, 0) -> Bin;
unaligned_sub_bin(Bin0, Offs) ->
F = random:uniform(256),
Roffs = 8-Offs,
Bin1 = <<F:Offs,Bin0/binary,F:Roffs>>,
Sz = size(Bin0),
<<_:Offs,Bin:Sz/binary,_:Roffs>> = id(Bin1),
Bin.
id(I) -> I.
