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-rw-r--r--lib/stdlib/test/Makefile2
-rw-r--r--lib/stdlib/test/binary_module_SUITE.erl72
-rw-r--r--lib/stdlib/test/binref.erl34
3 files changed, 89 insertions, 19 deletions
diff --git a/lib/stdlib/test/Makefile b/lib/stdlib/test/Makefile
index 9beac93eb8..3bbd9ce318 100644
--- a/lib/stdlib/test/Makefile
+++ b/lib/stdlib/test/Makefile
@@ -9,6 +9,8 @@ MODULES= \
array_SUITE \
base64_SUITE \
beam_lib_SUITE \
+ binary_module_SUITE \
+ binref \
c_SUITE \
calendar_SUITE \
dets_SUITE \
diff --git a/lib/stdlib/test/binary_module_SUITE.erl b/lib/stdlib/test/binary_module_SUITE.erl
index 31d0812cfc..b6d3dde1d4 100644
--- a/lib/stdlib/test/binary_module_SUITE.erl
+++ b/lib/stdlib/test/binary_module_SUITE.erl
@@ -1,6 +1,6 @@
-module(binary_module_SUITE).
--export([all/1, interesting/1]).
+-export([all/1, interesting/1,random_ref_comp/1]).
-define(STANDALONE,1).
@@ -24,7 +24,7 @@ run() ->
-endif.
-all(suite) -> [interesting].
+all(suite) -> [interesting,random_ref_comp].
interesting(doc) ->
@@ -94,3 +94,71 @@ do_interesting(Module) ->
[<<"34">>,<<"34">>,
<<"12347">>,<<"2346">>]),
ok.
+
+random_ref_comp(doc) ->
+ ["Test pseudorandomly generated cases against reference imlementation"];
+random_ref_comp(Config) when is_list(Config) ->
+ put(success_counter,0),
+ random:seed({1271,769940,559934}),
+ do_random_match_comp(5000,{1,40},{30,1000}),
+ io:format("Number of successes: ~p~n",[get(success_counter)]),
+ do_random_match_comp2(5000,{1,40},{30,1000}),
+ io:format("Number of successes: ~p~n",[get(success_counter)]),
+ ok.
+
+do_random_match_comp(0,_,_) ->
+ ok;
+do_random_match_comp(N,NeedleRange,HaystackRange) ->
+ Needle = random_string(NeedleRange),
+ Haystack = random_string(HaystackRange),
+ true = do_match_comp(Needle,Haystack),
+ do_random_match_comp(N-1,NeedleRange,HaystackRange).
+
+do_random_match_comp2(0,_,_) ->
+ ok;
+do_random_match_comp2(N,NeedleRange,HaystackRange) ->
+ Haystack = random_string(HaystackRange),
+ Needle = random_substring(NeedleRange,Haystack),
+ true = do_match_comp(Needle,Haystack),
+ do_random_match_comp2(N-1,NeedleRange,HaystackRange).
+
+do_match_comp(N,H) ->
+ A = binref:match(H,N),
+ B = binref:match(H,binref:compile_pattern([N])),
+ C = binary:match(H,N),
+ D = binary:match(H,binary:compile_pattern([N])),
+ if
+ A =/= nomatch ->
+ put(success_counter,get(success_counter)+1);
+ true ->
+ ok
+ end,
+ case {(A =:= B), (B =:= C),(C =:= D)} of
+ {true,true,true} ->
+ true;
+ _ ->
+ io:format("Failed to match ~s (needle) against ~s (haystack)~n",
+ [N,H]),
+ io:format("A:~p,~nB:~p,~n,C:~p,~n,D:~p.~n",
+ [A,B,C,D]),
+ exit(mismatch)
+ end.
+
+one_random(N) ->
+ M = ((N - 1) rem 68) + 1,
+ element(M,{$a,$b,$c,$d,$e,$f,$g,$h,$i,$j,$k,$l,$m,$n,$o,$p,$q,$r,$s,$t,$u,$v,$w,$x,$y,$z,$�,$�,$�,$A,$B,$C,$D,$E,$F,$G,$H,$I,$J,$K,$L,$M,$N,$O,$P,$Q,$R,$S,$T,$U,$V,$W,$X,$Y,$Z,$�,$�,$�,$0,$1,$2,$3,$4,$5,$6,$7,$8,$9}).
+
+random_string({Min,Max}) ->
+ X = random:uniform(Max - Min + 1) + Min - 1,
+ list_to_binary([one_random(random:uniform(68)) || _ <- lists:seq(1,X)]).
+random_substring({Min,Max},Hay) ->
+ X = random:uniform(Max - Min + 1) + Min - 1,
+ Y = byte_size(Hay),
+ Z = if
+ X > Y -> Y;
+ true -> X
+ end,
+ PMax = Y - Z,
+ Pos = random:uniform(PMax + 1) - 1,
+ <<_:Pos/binary,Res:Z/binary,_/binary>> = Hay,
+ Res.
diff --git a/lib/stdlib/test/binref.erl b/lib/stdlib/test/binref.erl
index 270796c8f9..d93f82fda9 100644
--- a/lib/stdlib/test/binref.erl
+++ b/lib/stdlib/test/binref.erl
@@ -33,8 +33,8 @@ match(Haystack,{Needles},Options) ->
match(Haystack,Needles,Options) ->
try
true = is_binary(Haystack) and is_list(Needles), % badarg, not function_clause
- case get_opts_match(Options,no) of
- no ->
+ case get_opts_match(Options,nomatch) of
+ nomatch ->
mloop(Haystack,Needles);
{A,B} when B > 0 ->
<<_:A/binary,SubStack:B/binary,_/binary>> = Haystack,
@@ -45,7 +45,7 @@ match(Haystack,Needles,Options) ->
<<_:Start/binary,SubStack:Len/binary,_/binary>> = Haystack,
mloop(SubStack,Needles,Start,Len+Start);
_ ->
- no
+ nomatch
end
catch
_:_ ->
@@ -60,8 +60,8 @@ matches(Haystack,{Needles},Options) ->
matches(Haystack,Needles,Options) ->
try
true = is_binary(Haystack) and is_list(Needles), % badarg, not function_clause
- case get_opts_match(Options,no) of
- no ->
+ case get_opts_match(Options,nomatch) of
+ nomatch ->
msloop(Haystack,Needles);
{A,B} when B > 0 ->
<<_:A/binary,SubStack:B/binary,_/binary>> = Haystack,
@@ -83,10 +83,10 @@ mloop(Haystack,Needles) ->
mloop(Haystack,Needles,0,byte_size(Haystack)).
mloop(_Haystack,_Needles,N,M) when N >= M ->
- no;
+ nomatch;
mloop(Haystack,Needles,N,M) ->
- case mloop2(Haystack,Needles,N,no) of
- no ->
+ case mloop2(Haystack,Needles,N,nomatch) of
+ nomatch ->
% Not found
<<_:8,NewStack/binary>> = Haystack,
mloop(NewStack,Needles,N+1,M);
@@ -100,8 +100,8 @@ msloop(Haystack,Needles) ->
msloop(_Haystack,_Needles,N,M) when N >= M ->
[];
msloop(Haystack,Needles,N,M) ->
- case mloop2(Haystack,Needles,N,no) of
- no ->
+ case mloop2(Haystack,Needles,N,nomatch) of
+ nomatch ->
% Not found
<<_:8,NewStack/binary>> = Haystack,
msloop(NewStack,Needles,N+1,M);
@@ -123,7 +123,7 @@ mloop2(Haystack,[Needle|Tail],N,Candidate) ->
case Haystack of
<<Needle:NS/binary,_/binary>> ->
NewCandidate = case Candidate of
- no ->
+ nomatch ->
{N,NS};
{N,ONS} when ONS < NS ->
{N,NS};
@@ -145,10 +145,10 @@ split(Haystack,{Needles},Options) ->
split(Haystack, Needles, Options);
split(Haystack,Needles,Options) ->
try
- {Part,Global,Trim} = get_opts_split(Options,{no,false,false}),
+ {Part,Global,Trim} = get_opts_split(Options,{nomatch,false,false}),
{Start,End,NewStack} =
case Part of
- no ->
+ nomatch ->
{0,byte_size(Haystack),Haystack};
{A,B} when B >= 0 ->
<<_:A/binary,SubStack:B/binary,_/binary>> = Haystack,
@@ -164,7 +164,7 @@ split(Haystack,Needles,Options) ->
msloop(NewStack,Needles,Start,End);
true ->
case mloop(NewStack,Needles,Start,End) of
- no ->
+ nomatch ->
[];
X ->
[X]
@@ -206,10 +206,10 @@ replace(Haystack,{Needles},Replacement,Options) ->
replace(Haystack,Needles,Replacement,Options) ->
try
true = is_binary(Replacement), % Make badarg instead of function clause
- {Part,Global,Insert} = get_opts_replace(Options,{no,false,[]}),
+ {Part,Global,Insert} = get_opts_replace(Options,{nomatch,false,[]}),
{Start,End,NewStack} =
case Part of
- no ->
+ nomatch ->
{0,byte_size(Haystack),Haystack};
{A,B} when B >= 0 ->
<<_:A/binary,SubStack:B/binary,_/binary>> = Haystack,
@@ -225,7 +225,7 @@ replace(Haystack,Needles,Replacement,Options) ->
msloop(NewStack,Needles,Start,End);
true ->
case mloop(NewStack,Needles,Start,End) of
- no ->
+ nomatch ->
[];
X ->
[X]
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 13:37:18 +0000