aboutsummaryrefslogblamecommitdiffstats
path: root/lib/compiler/test/bs_construct_SUITE.erl
blob: 0d6582d16faa18f81f57946625855f568b557115 (plain) (tree)
1
2
3
4
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
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522


                   
                                                        




















                                                                         


                                                                    



                                                                

                                                    

                                                
         



                                                             



            





                         
                                     
           

                                    
           
 




                                                                      
                                                                     

























                                                                  

                   














































































































































































































































































































































































































































                                                                                     
%%
%% %CopyrightBegin%
%% 
%% Copyright Ericsson AB 2004-2010. 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%
%%

%%% While similar to bs_construct_SUITE in the emulator test suite,
%%% this module is more corncerned with testing sizes than the contents
%%% of binaries.

-module(bs_construct_SUITE).

-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,
	 two/1,test1/1,fail/1,float_bin/1,in_guard/1,in_catch/1,
	 nasty_literals/1,coerce_to_float/1,side_effect/1,
	 opt/1,otp_7556/1,float_arith/1,otp_8054/1]).

-include_lib("test_server/include/test_server.hrl").

suite() -> [{suite_callbacks,[ts_install_scb]}].

all() -> 
    test_lib:recompile(bs_construct_SUITE),
    [two, test1, fail, float_bin, in_guard, in_catch,
     nasty_literals, side_effect, opt, otp_7556, float_arith,
     otp_8054].

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(Case, Config) when is_atom(Case), is_list(Config) ->
    Dog = test_server:timetrap(?t:minutes(1)),
    [{watchdog,Dog}|Config].

end_per_testcase(Case, Config) when is_atom(Case), is_list(Config) ->
    Dog = ?config(watchdog, Config),
    ?t:timetrap_cancel(Dog),
    ok.

two(Config) when is_list(Config) ->
    <<0,1,2,3,4,6,7,8,9>> = two_1([0], [<<1,2,3,4>>,<<6,7,8,9>>]),
    ok.

two_1(P, L) ->
    list_to_binary([P|L]).


big(1) ->
    57285702734876389752897683.

i(X) -> X.

id(I) -> I.

-define(T(B, L), {B, ??B, L}).
-define(N(B), {B, ??B, unknown}).

-define(FAIL(Expr), ?line {'EXIT',{badarg,_}} = (catch Expr)).

l(I_13, I_big1, I_16, Bin) ->
    [
     ?T(<<I_13:0>>,
	[]),
     ?T(<<-43>>,
	[256-43]),
     ?T(<<4:4,7:4>>,
	[4*16+7]),
     ?T(<<45:I_16/little>>,
        [45,0]),
     ?T(<<777:16/little>>,
	[9,3]),
     ?T(<<777:I_13,13:3>>,
        [24,77]),
     ?T(<<5:4,987:I_13,537:7>>,
        [81,237,153]),
     ?T(<<0.0:32/float>>,
	[0,0,0,0]),
     ?T(<<0.125:32/float>>,
	[62,0,0,0]),
     ?T(<<1.0:32/little-float>>,
	[0,0,128,63]),
     ?T(<<I_big1:32>>,
	[138,99,0,147]),
     ?T(<<57285702734876389752897684:(I_16+16)>>,
	[138,99,0,148]),
     ?T(<<-1:17/unit:8>>,
	lists:duplicate(17, 255)),
     ?T(<<-1:8/unit:17>>,
	lists:duplicate(17, 255)),
     ?T(<<4:(I_16-8)/unit:2,5:2/unit:8>>,
	[0,4,0,5]),
     ?T(<<1:1, 0:(I_13-7), 1:1>>,
	[129]),
     ?T(<<1:3,"string",9:5>>,
	[46,110,142,77,45,204,233]),
     ?T(<<37.98:64/native-float>>,
	native_3798()),
     ?T(<<32978297842987249827298387697777669766334937:128/native-integer>>,
	native_bignum()),

     ?T(<<Bin/binary>>,
        [165,90,195]),
     ?T(<<79,Bin/binary>>,
        [79,165,90,195]),
     ?T(<<3479:I_13,Bin/binary,7:3>>,
        [108,189,42,214,31]),
     ?T(<<3479:I_13,Bin/binary,7:1/unit:3>>,
        [108,189,42,214,31]),
     ?T(<<869:16/little,3479:I_13,Bin/binary,7:1/unit:3>>,
        [101,3,108,189,42,214,31]),
     ?T(<<869:16/little,3479:I_13,Bin/binary,7:1/unit:3,Bin/binary>>,
        [101,3,108,189,42,214,31,165,90,195]),

     %% Test of aligment flag.
     ?T(<<0:I_13/unit:8,1:6,0:2>>,
	[0,0,0,0,0,0,0,0,0,0,0,0,0,4]),

     %% Test of literals (coverage).
     ?T(<<0:128>>,[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]),
     ?T(<<0:13/little,7:3>>,[0,7]),
     ?T(<<16#77FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF:264>>,
	[0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0,
	 16#77,16#FF,16#FF,16#FF,16#FF,16#FF,16#FF,16#FF,16#FF,16#FF,16#FF,
	 16#FF,16#FF,16#FF,16#FF,16#FF,16#FF]),

     %% Mix different units.
     ?T(<<37558955:(I_16-12)/unit:8,1:1>>,
	[2,61,26,171,<<1:1>>])
     ].

native_3798() ->
    case <<1:16/native>> of
	<<0,1>> -> [64,66,253,112,163,215,10,61];
	<<1,0>> -> [61,10,215,163,112,253,66,64]
    end.

native_bignum() ->
    case <<1:16/native>> of
	<<0,1>> -> [129,205,18,177,1,213,170,101,39,231,109,128,176,11,73,217];
	<<1,0>> -> [217,73,11,176,128,109,231,39,101,170,213,1,177,18,205,129]
    end.

evaluate(Str, Vars) ->
    {ok,Tokens,_} =
	erl_scan:string(Str ++ " . "),
    {ok, [Expr]} = erl_parse:parse_exprs(Tokens),
    case erl_eval:expr(Expr, Vars) of
	{value, Result, _} ->
	    Result
    end.

eval_list([], _Vars) ->
    [];
eval_list([{C_bin, Str, Bytes} | Rest], Vars) ->
    case catch evaluate(Str, Vars) of
	{'EXIT', Error} ->
	    io:format("Evaluation error: ~p, ~p, ~p~n", [Str, Vars, Error]),
	    exit(Error);
	E_bin ->
	    [{C_bin, E_bin, Str, Bytes} | eval_list(Rest, Vars)]
    end.

one_test({C_bin, E_bin, Str, Bytes}) when is_list(Bytes) ->
    io:format("  ~s, ~p~n", [Str, Bytes]),
    Bin = list_to_bitstring(Bytes),
    if
	C_bin == Bin ->
	    ok;
	true ->
	    io:format("ERROR: Compiled: ~p. Expected ~p. Got ~p.~n",
		      [Str, Bytes, bitstring_to_list(C_bin)]),
	    test_server:fail(comp)
    end,
    if
	E_bin == Bin ->
	    ok;
	true ->
	    io:format("ERROR: Interpreted: ~p. Expected ~p. Got ~p.~n",
		      [Str, Bytes, bitstring_to_list(E_bin)]),
	    test_server:fail(comp)
    end;
one_test({C_bin, E_bin, Str, Result}) ->
    io:format("  ~s ~p~n", [Str, C_bin]),
    if
	C_bin == E_bin ->
	    ok;
	true ->
	    Arbitrary = case Result of
			    unknown ->
				size(C_bin);
			    _ ->
				Result
			end,
	    case equal_lists(bitstring_to_list(C_bin),
			     bitstring_to_list(E_bin),
			     Arbitrary) of
		false ->
		    io:format("ERROR: Compiled not equal to interpreted:"
			      "~n ~p, ~p.~n",
			      [bitstring_to_list(C_bin), bitstring_to_list(E_bin)]),
		    test_server:fail(comp);
		0 ->
		    ok;
		%% For situations where the final bits may not matter, like
		%% for floats:
		N when integer(N) ->
		    io:format("Info: compiled and interpreted differ in the"
			      " last bytes:~n ~p, ~p.~n",
			      [bitstring_to_list(C_bin), bitstring_to_list(E_bin)]),
		    ok
	    end
    end.

equal_lists([], [], _) ->
    0;
equal_lists([], _, _) ->
    false;
equal_lists(_, [], _) ->
    false;
equal_lists([A|AR], [A|BR], R) ->
    equal_lists(AR, BR, R);
equal_lists(A, B, R) ->
    if
	length(A) /= length(B) ->
	    false;
	length(A) =< R ->
	    R;
	true ->
	    false
    end.

test1(Config) when is_list(Config) ->
    ?line I_13 = i(13),
    ?line I_big1 = big(1),
    ?line I_16 = i(16),
    ?line Bin = i(<<16#A5,16#5A,16#C3>>),
    ?line Vars = lists:sort([{'I_13',I_13},
			     {'I_big1',I_big1},
			     {'I_16',I_16},
			     {'Bin',Bin}]),
    ?line lists:foreach(fun one_test/1, eval_list(l(I_13, I_big1, I_16, Bin), Vars)).

fail(Config) when is_list(Config) ->
    I_minus_777 = i(-777),
    I_minus_2047 = i(-2047),

    %% One negative field size, but the sum of field sizes will be 1 byte.
    %% Make sure that we reject that properly.

    ?line {'EXIT',{badarg,_}} = (catch <<I_minus_777:2048/unit:8,
					57:I_minus_2047/unit:8>>),

    %% Same thing, but use literals.
    ?line {'EXIT',{badarg,_}} = (catch <<I_minus_777:2048/unit:8,
					57:(-2047)/unit:8>>),

    %% Not numbers.
    ?line {'EXIT',{badarg,_}} = (catch <<45:(i(not_a_number))>>),
    ?line {'EXIT',{badarg,_}} = (catch <<13:8,45:(i(not_a_number))>>),

    %% Unaligned sizes.
    BadSz = i(7),
    Bitstr = i(<<42:17>>),

    ?line {'EXIT',{badarg,_}} = (catch <<Bitstr:4/binary>>),
    ?line {'EXIT',{badarg,_}} = (catch <<Bitstr:BadSz/binary>>),

    ?line [] = [X || {X} <- [], X == <<Bitstr:BadSz/binary>>],
    ?line [] = [X || {X} <- [], X == <<Bitstr:4/binary>>],

    %% Literals with incorrect type.
    ?line {'EXIT',{badarg,_}} = (catch <<42.0/integer>>),
    ?line {'EXIT',{badarg,_}} = (catch <<42/binary>>),
    ?line {'EXIT',{badarg,_}} = (catch <<an_atom/integer>>),
    
    ok.

float_bin(Config) when is_list(Config) ->
    %% Some more coverage.
    ?line {<<1,2,3>>,7.0} = float_bin_1(4),
    F = 42.0,
    ?line <<42,0,0,0,0,0,0,69,64>> = <<(id(42)),F/little-float>>,
    ok.

float_bin_1(F) ->
    {<<1,2,3>>,F+3.0}.

in_guard(Config) when is_list(Config) ->
    ?line 1 = in_guard_1(<<16#74ad:16>>, 16#e95, 5),
    ?line 2 = in_guard_1(<<16#3A,16#F7,"hello">>, 16#3AF7, <<"hello">>),
    ?line 3 = in_guard_1(<<16#FBCD:14,3.1415/float,3:2>>, 16#FBCD, 3.1415),
    ?line nope = in_guard_1(<<1>>, 42, b),
    ?line nope = in_guard_1(<<1>>, a, b),
    ?line nope = in_guard_1(<<1,2>>, 1, 1),
    ?line nope = in_guard_1(<<4,5>>, 1, 2.71),
    ?line nope = in_guard_1(<<4,5>>, 1, <<12,13>>),

    ?line 1 = in_guard_2(<<0,56>>, 7, blurf),
    ?line 2 = in_guard_2(<<1,255>>, 511, blurf),
    ?line 3 = in_guard_2(<<0,3>>, 0, blurf),
    ?line 4 = in_guard_2(<<>>, 1, {<<7:16>>}),
    ?line nope = in_guard_2(<<4,5>>, 1, blurf),

    ?line 42 = in_guard_3(<<1,2,3,42>>, <<1,2,3>>),
    ?line 42 = in_guard_3(<<1,2,3,42>>, <<1,2,3>>),
    ?line nope = in_guard_3(<<>>, <<>>),

    ?line ok = in_guard_4(<<15:4>>, 255),
    ?line nope = in_guard_4(<<15:8>>, 255),
    ok.

in_guard_1(Bin, A, B) when <<A:13,B:3>> == Bin -> 1;
in_guard_1(Bin, A, B) when <<A:16,B/binary>> == Bin -> 2;
in_guard_1(Bin, A, B) when <<A:14,B/float,3:2>> == Bin -> 3;
in_guard_1(Bin, A, B) when {a,b,<<A:14,B/float,3:2>>} == Bin -> cant_happen;
in_guard_1(_, _, _) -> nope.

in_guard_2(Bin, A, _T) when <<A:13,0:3>> == Bin -> 1;
in_guard_2(Bin, A, _T) when <<A:16>> == Bin -> 2;
in_guard_2(Bin, A, _T) when <<A:14,3:2>> == Bin -> 3;
in_guard_2(_Bin, A, T) when {A,b} > {0,1}, {<<A:14,3:2>>} == T -> 4;
in_guard_2(_, _, _) -> nope.

in_guard_3(Bin, A) when <<A/binary,42>> =:= Bin -> 42;
in_guard_3(_, _) -> nope.

in_guard_4(Bin, A) when <<A:4>> =:= Bin -> ok;
in_guard_4(_, _) -> nope.

in_catch(Config) when is_list(Config) ->
    ?line <<42,0,5>> = small(42, 5),
    ?line <<255>> = small(255, <<1,2,3,4,5,6,7,8,9>>),
    ?line <<1,2>> = small(<<7,8,9,10>>, 258),
    ?line <<>> = small(<<1,2,3,4,5>>, <<7,8,9,10>>),
    ok.

small(A, B) ->
    case begin
	     case catch <<A:8>> of
		 {'EXIT',_} -> <<>>;
		 ResA0 -> ResA0
	     end
	 end of
	ResA -> ok
    end,
    case begin
	     case catch <<B:16>> of
		 {'EXIT',_} -> <<>>;
		 ResB0 -> ResB0
	     end
	 end of
	ResB -> ok
    end,
    <<ResA/binary,ResB/binary>>.

nasty_literals(Config) when is_list(Config) ->
    case erlang:system_info(endian) of
	big ->
	    ?line [0,42] = binary_to_list(id(<<42:16/native>>));
	little ->
	    ?line [42,0] = binary_to_list(id(<<42:16/native>>))
    end,

    ?line Bin0 = id(<<1,2,3,0:10000000,4,5,6>>),
    ?line 1250006 = size(Bin0),
    ?line <<1,2,3,0:10000000,4,5,6>> = Bin0,

    ?line Bin1 = id(<<0:10000000,7,8,-1:10000000,9,10,0:10000000>>),
    ?line 3750004 = size(Bin1),
    ?line <<0:10000000,7,8,-1:10000000/signed,9,10,0:10000000>> = Bin1,

    ?line <<255,255,0,0,0>> = id(<<255,255,0,0,0>>),

    %% Coverage.
    I = 16#7777FFFF7777FFFF7777FFFF7777FFFF7777FFFF7777FFFF,
    id(<<I:260>>),

    ok.

-define(COF(Int0),
	?line (fun(Int) ->
		       true = <<Int:32/float>> =:= <<(float(Int)):32/float>>,
		       true = <<Int:64/float>> =:= <<(float(Int)):64/float>>
			   end)(nonliteral(Int0)),
 	?line true = <<Int0:32/float>> =:= <<(float(Int0)):32/float>>,
 	?line true = <<Int0:64/float>> =:= <<(float(Int0)):64/float>>).

-define(COF64(Int0),
	?line (fun(Int) ->
		       true = <<Int:64/float>> =:= <<(float(Int)):64/float>>
			   end)(nonliteral(Int0)),
 	?line true = <<Int0:64/float>> =:= <<(float(Int0)):64/float>>).

nonliteral(X) -> X.
    
coerce_to_float(Config) when is_list(Config) ->
    ?COF(0),
    ?COF(-1),
    ?COF(1),
    ?COF(42),
    ?COF(255),
    ?COF(-255),
    ?COF(38474),
    ?COF(387498738948729893849444444443),
    ?COF(-37489378937773899999999999999993),
    ?COF64(298748888888888888888888888883478264866528467367364766666666666666663),
    ?COF64(-367546729879999999999947826486652846736736476555566666663),
    ok.

side_effect(Config) when is_list(Config) ->
    {'EXIT',{badarg,_}} = (catch side_effect_1(a)),
    {'EXIT',{badarg,_}} = (catch side_effect_1(<<>>)),
    ?line ok = side_effect_1(42),
    ok.

side_effect_1(A) ->
    <<A:17>>,					%Warning intentional.
    ok.

-record(otp_7029, {a,b}).

opt(Config) when is_list(Config) ->
    ?line 42 = otp_7029(#otp_7029{a = <<>>,b = 42}),
    N = 16,
    ?line <<1,3,65>> = id(<<1,833:N>>),
    ?line <<1,66,3>> = id(<<1,834:N/little>>),
    ?line <<1,65,136,0,0>> = id(<<1,17.0:32/float>>),
    ?line <<1,64,8,0,0,0,0,0,0>> = id(<<1,3.0:N/float-unit:4>>),
    ?line <<1,0,0,0,0,0,0,8,64>> = id(<<1,3.0:N/little-float-unit:4>>),
    ?line {'EXIT',{badarg,_}} = (catch id(<<3.1416:N/float>>)),

    B = <<1,2,3,4,5>>,
    ?line <<0,1,2,3,4,5>> = id(<<0,B/binary>>),
    ?line <<1,2,3,4,5,19>> = id(<<B:5/binary,19>>),
    ?line <<1,2,3,42>> = id(<<B:3/binary,42>>),

    ?line {'EXIT',_} = (catch <<<<23,56,0,2>>:(2.5)/binary>>),
    ?line {'EXIT',_} = (catch <<<<23,56,0,2>>:(-16)/binary>>),
    ?line {'EXIT',_} = (catch <<<<23,56,0,2>>:(anka)>>),
    ?line {'EXIT',_} = (catch <<<<23,56,0,2>>:64/float>>),
    ?line {'EXIT',_} = (catch <<<<23,56,0,2:7>>/binary>>),

    case id(false) of
	true -> ?line opt_dont_call_me();
	false -> ok
    end,

    ok.

opt_dont_call_me() ->
    N = 16#12345678,
    <<0:N>>.

otp_7029(R) ->
    #otp_7029{a = <<>>} = R,
    R#otp_7029.b.

otp_7556(Config) when is_list(Config) ->
    [otp_7556(<<>>, 1024, 1024, 1024) || _ <- lists:seq(0, 1023)],
    ok.

otp_7556(Bin, A, B, C) ->
    %% When allocating the binary, the sizes 16*A and 16*A would
    %% be forgotten.
    <<Bin/binary,(-1):A/unit:16,0:B/unit:16,(-1):C/unit:16>>.

%% Test binary construction combined with floating point operations
%% (mostly to cover code in beam_flatten that combines the allocation
%% for a binary construction with a later allocation).

float_arith(Config) when is_list(Config) ->
    ?line {<<1,2,3,64,69,0,0,0,0,0,0>>,21.0} = do_float_arith(<<1,2,3>>, 42, 2),
    ok.

do_float_arith(Bin0, X, Y)  ->
    Bin = <<Bin0/binary,X/float>>,
    {Bin,X / Y}.

otp_8054(Config) when is_list(Config) ->
    ?line <<"abc">> = otp_8054_1([null,1,2,3], <<"abc">>),
    ok.

otp_8054_1([H|T], Bin) ->
    _ = case H of
	    null ->
		%% The beam_validator would complain about {x,3}
		%% not being live in bs_append/8 because of a live
		%% optimization bug.
		<<Bin/binary>>;
	    _ ->
		ok
	end,
    otp_8054_1(T, Bin);
otp_8054_1([], Bin) -> Bin.