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-rw-r--r--lib/debugger/test/bs_match_bin_SUITE.erl141
1 files changed, 121 insertions, 20 deletions
diff --git a/lib/debugger/test/bs_match_bin_SUITE.erl b/lib/debugger/test/bs_match_bin_SUITE.erl
index b42b84aef2..5a7c30f16b 100644
--- a/lib/debugger/test/bs_match_bin_SUITE.erl
+++ b/lib/debugger/test/bs_match_bin_SUITE.erl
@@ -24,14 +24,14 @@
-export([all/0, suite/0,groups/0,init_per_group/2,end_per_group/2,
init_per_testcase/2,end_per_testcase/2,
init_per_suite/1,end_per_suite/1,
- byte_split_binary/1,bit_split_binary/1]).
+ byte_split_binary/1,bit_split_binary/1,match_huge_bin/1]).
-include_lib("test_server/include/test_server.hrl").
suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
- cases().
+ [byte_split_binary, bit_split_binary, match_huge_bin].
groups() ->
[].
@@ -42,10 +42,6 @@ init_per_group(_GroupName, Config) ->
end_per_group(_GroupName, Config) ->
Config.
-
-cases() ->
- [byte_split_binary, bit_split_binary].
-
init_per_testcase(_Case, Config) ->
test_lib:interpret(?MODULE),
Dog = test_server:timetrap(?t:minutes(1)),
@@ -65,11 +61,12 @@ end_per_suite(Config) when is_list(Config) ->
ok.
byte_split_binary(doc) -> "Tries to split a binary at all byte-aligned positions.";
-byte_split_binary(suite) -> [];
-byte_split_binary(Config) when list(Config) ->
+byte_split_binary(Config) when is_list(Config) ->
?line L = lists:seq(0, 57),
?line B = mkbin(L),
- ?line byte_split(L, B, size(B)).
+ ?line byte_split(L, B, size(B)),
+ ?line Unaligned = make_unaligned_sub_binary(B),
+ ?line byte_split(L, Unaligned, size(Unaligned)).
byte_split(L, B, Pos) when Pos >= 0 ->
?line Sz1 = Pos,
@@ -78,18 +75,19 @@ byte_split(L, B, Pos) when Pos >= 0 ->
?line B1 = list_to_binary(lists:sublist(L, 1, Pos)),
?line B2 = list_to_binary(lists:nthtail(Pos, L)),
?line byte_split(L, B, Pos-1);
-byte_split(_L, _B, _) -> ok.
+byte_split(_, _, _) -> ok.
bit_split_binary(doc) -> "Tries to split a binary at all positions.";
-bit_split_binary(suite) -> [];
-bit_split_binary(Config) when list(Config) ->
+bit_split_binary(Config) when is_list(Config) ->
Fun = fun(Bin, List, SkipBef, N) ->
?line SkipAft = 8*size(Bin) - N - SkipBef,
- io:format("~p, ~p, ~p", [SkipBef,N,SkipAft]),
- ?line <<_I1:SkipBef,OutBin:N/binary-unit:1,_I2:SkipAft>> = Bin,
+ %%io:format("~p, ~p, ~p", [SkipBef,N,SkipAft]),
+ ?line <<_:SkipBef,OutBin:N/binary-unit:1,_:SkipAft>> = Bin,
?line OutBin = make_bin_from_list(List, N)
end,
?line bit_split_binary1(Fun, erlang:md5(<<1,2,3>>)),
+ ?line bit_split_binary1(Fun,
+ make_unaligned_sub_binary(erlang:md5(<<1,2,3>>))),
ok.
bit_split_binary1(Action, Bin) ->
@@ -99,24 +97,23 @@ bit_split_binary1(Action, Bin) ->
bit_split_binary2(Action, Bin, [_|T]=List, Bef) ->
bit_split_binary3(Action, Bin, List, Bef, size(Bin)*8),
bit_split_binary2(Action, Bin, T, Bef+1);
-bit_split_binary2(_Action, _Bin, [], _Bef) -> ok.
+bit_split_binary2(_, _, [], _) -> ok.
bit_split_binary3(Action, Bin, List, Bef, Aft) when Bef =< Aft ->
Action(Bin, List, Bef, (Aft-Bef) div 8 * 8),
bit_split_binary3(Action, Bin, List, Bef, Aft-8);
bit_split_binary3(_, _, _, _, _) -> ok.
-make_bin_from_list(_List, 0) ->
- mkbin([]);
+make_bin_from_list(_, 0) -> mkbin([]);
make_bin_from_list(List, N) ->
list_to_binary([make_int(List, 8, 0),
make_bin_from_list(lists:nthtail(8, List), N-8)]).
-make_int(_List, 0, Acc) -> Acc;
+make_int(_, 0, Acc) -> Acc;
make_int([H|T], N, Acc) -> make_int(T, N-1, Acc bsl 1 bor H).
-bits_to_list([_H|T], 0) -> bits_to_list(T, 16#80);
+bits_to_list([_|T], 0) -> bits_to_list(T, 16#80);
bits_to_list([H|_]=List, Mask) ->
[case H band Mask of
0 -> 0;
@@ -124,5 +121,109 @@ bits_to_list([H|_]=List, Mask) ->
end|bits_to_list(List, Mask bsr 1)];
bits_to_list([], _) -> [].
+mkbin(L) when is_list(L) -> list_to_binary(L).
+
+make_unaligned_sub_binary(Bin0) ->
+ Bin1 = <<0:3,Bin0/binary,31:5>>,
+ Sz = size(Bin0),
+ <<0:3,Bin:Sz/binary,31:5>> = id(Bin1),
+ Bin.
+
+id(I) -> I.
+
+match_huge_bin(Config) when is_list(Config) ->
+ ?line Bin = <<0:(1 bsl 27),13:8>>,
+ ?line skip_huge_bin_1(1 bsl 27, Bin),
+ ?line 16777216 = match_huge_bin_1(1 bsl 27, Bin),
+
+ %% Test overflowing the size of a binary field.
+ ?line nomatch = overflow_huge_bin_skip_32(Bin),
+ ?line nomatch = overflow_huge_bin_32(Bin),
+ ?line nomatch = overflow_huge_bin_skip_64(Bin),
+ ?line nomatch = overflow_huge_bin_64(Bin),
+
+ %% Size in variable
+ ?line ok = overflow_huge_bin(Bin, lists:seq(25, 32)++lists:seq(50, 64)),
+ ?line ok = overflow_huge_bin_unit128(Bin, lists:seq(25, 32)++lists:seq(50, 64)),
+
+ ok.
+
+overflow_huge_bin(Bin, [Sz0|Sizes]) ->
+ Sz = id(1 bsl Sz0),
+ case Bin of
+ <<_:Sz/binary-unit:8,0,_/binary>> ->
+ {error,Sz};
+ _ ->
+ case Bin of
+ <<NewBin:Sz/binary-unit:8,0,_/binary>> ->
+ {error,Sz,size(NewBin)};
+ _ ->
+ overflow_huge_bin(Bin, Sizes)
+ end
+ end;
+overflow_huge_bin(_, []) -> ok.
+
+overflow_huge_bin_unit128(Bin, [Sz0|Sizes]) ->
+ Sz = id(1 bsl Sz0),
+ case Bin of
+ <<_:Sz/binary-unit:128,0,_/binary>> ->
+ {error,Sz};
+ _ ->
+ case Bin of
+ <<NewBin:Sz/binary-unit:128,0,_/binary>> ->
+ {error,Sz,size(NewBin)};
+ _ ->
+ overflow_huge_bin_unit128(Bin, Sizes)
+ end
+ end;
+overflow_huge_bin_unit128(_, []) -> ok.
+
+skip_huge_bin_1(I, Bin) ->
+ <<_:I/binary-unit:1,13>> = Bin,
+ ok.
-mkbin(L) when list(L) -> list_to_binary(L).
+match_huge_bin_1(I, Bin) ->
+ case Bin of
+ <<Val:I/binary-unit:1,13>> -> size(Val);
+ _ -> nomatch
+ end.
+
+overflow_huge_bin_skip_32(<<_:4294967296/binary,0,_/binary>>) -> 1; % 1 bsl 32
+overflow_huge_bin_skip_32(<<_:33554432/binary-unit:128,0,_/binary>>) -> 2; % 1 bsl 25
+overflow_huge_bin_skip_32(<<_:67108864/binary-unit:64,0,_/binary>>) -> 3; % 1 bsl 26
+overflow_huge_bin_skip_32(<<_:134217728/binary-unit:32,0,_/binary>>) -> 4; % 1 bsl 27
+overflow_huge_bin_skip_32(<<_:268435456/binary-unit:16,0,_/binary>>) -> 5; % 1 bsl 28
+overflow_huge_bin_skip_32(<<_:536870912/binary-unit:8,0,_/binary>>) -> 6; % 1 bsl 29
+overflow_huge_bin_skip_32(<<_:1073741824/binary-unit:8,0,_/binary>>) -> 7; % 1 bsl 30
+overflow_huge_bin_skip_32(<<_:2147483648/binary-unit:8,0,_/binary>>) -> 8; % 1 bsl 31
+overflow_huge_bin_skip_32(_) -> nomatch.
+
+overflow_huge_bin_32(<<Bin:4294967296/binary,_/binary>>) -> {1,Bin}; % 1 bsl 32
+overflow_huge_bin_32(<<Bin:33554432/binary-unit:128,0,_/binary>>) -> {2,Bin}; % 1 bsl 25
+overflow_huge_bin_32(<<Bin:67108864/binary-unit:128,0,_/binary>>) -> {3,Bin}; % 1 bsl 26
+overflow_huge_bin_32(<<Bin:134217728/binary-unit:128,0,_/binary>>) -> {4,Bin}; % 1 bsl 27
+overflow_huge_bin_32(<<Bin:268435456/binary-unit:128,0,_/binary>>) -> {5,Bin}; % 1 bsl 28
+overflow_huge_bin_32(<<Bin:536870912/binary-unit:128,0,_/binary>>) -> {6,Bin}; % 1 bsl 29
+overflow_huge_bin_32(<<Bin:1073741824/binary-unit:128,0,_/binary>>) -> {7,Bin}; % 1 bsl 30
+overflow_huge_bin_32(<<Bin:2147483648/binary-unit:128,0,_/binary>>) -> {8,Bin}; % 1 bsl 31
+overflow_huge_bin_32(_) -> nomatch.
+
+overflow_huge_bin_skip_64(<<_:18446744073709551616/binary,0,_/binary>>) -> 1; % 1 bsl 64
+overflow_huge_bin_skip_64(<<_:144115188075855872/binary-unit:128,0,_/binary>>) -> 2; % 1 bsl 57
+overflow_huge_bin_skip_64(<<_:288230376151711744/binary-unit:64,0,_/binary>>) -> 3; % 1 bsl 58
+overflow_huge_bin_skip_64(<<_:576460752303423488/binary-unit:32,0,_/binary>>) -> 4; % 1 bsl 59
+overflow_huge_bin_skip_64(<<_:1152921504606846976/binary-unit:16,0,_/binary>>) -> 5; % 1 bsl 60
+overflow_huge_bin_skip_64(<<_:2305843009213693952/binary-unit:8,0,_/binary>>) -> 6; % 1 bsl 61
+overflow_huge_bin_skip_64(<<_:4611686018427387904/binary-unit:8,0,_/binary>>) -> 7; % 1 bsl 62
+overflow_huge_bin_skip_64(<<_:9223372036854775808/binary-unit:8,_/binary>>) -> 8; % 1 bsl 63
+overflow_huge_bin_skip_64(_) -> nomatch.
+
+overflow_huge_bin_64(<<Bin:18446744073709551616/binary,_/binary>>) -> {1,Bin}; % 1 bsl 64
+overflow_huge_bin_64(<<Bin:144115188075855872/binary-unit:128,0,_/binary>>) -> {2,Bin}; % 1 bsl 57
+overflow_huge_bin_64(<<Bin:288230376151711744/binary-unit:128,0,_/binary>>) -> {3,Bin}; % 1 bsl 58
+overflow_huge_bin_64(<<Bin:576460752303423488/binary-unit:128,0,_/binary>>) -> {4,Bin}; % 1 bsl 59
+overflow_huge_bin_64(<<Bin:1152921504606846976/binary-unit:128,0,_/binary>>) -> {5,Bin}; % 1 bsl 60
+overflow_huge_bin_64(<<Bin:2305843009213693952/binary-unit:128,0,_/binary>>) -> {6,Bin}; % 1 bsl 61
+overflow_huge_bin_64(<<Bin:4611686018427387904/binary-unit:128,0,_/binary>>) -> {7,Bin}; % 1 bsl 62
+overflow_huge_bin_64(<<Bin:9223372036854775808/binary-unit:128,0,_/binary>>) -> {8,Bin}; % 1 bsl 63
+overflow_huge_bin_64(_) -> nomatch.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-12 01:41:00 +0000