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
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
|
%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2004-2013. 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(ei_decode_SUITE).
-include_lib("test_server/include/test_server.hrl").
-include("ei_decode_SUITE_data/ei_decode_test_cases.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,
test_ei_decode_long/1,
test_ei_decode_ulong/1,
test_ei_decode_longlong/1,
test_ei_decode_ulonglong/1,
test_ei_decode_char/1,
test_ei_decode_nonoptimal/1,
test_ei_decode_misc/1,
test_ei_decode_utf8_atom/1
]).
suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
[test_ei_decode_long, test_ei_decode_ulong,
test_ei_decode_longlong, test_ei_decode_ulonglong,
test_ei_decode_char, test_ei_decode_nonoptimal,
test_ei_decode_misc, test_ei_decode_utf8_atom].
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(_TC, Config) ->
Config.
end_per_testcase(_RC, Config) ->
Config.
%% ---------------------------------------------------------------------------
% NOTE: for historical reasons we don't pach as tight as we can,
% we only fill 27 bits in 32 bit INTEGER_EXT
%% ######################################################################## %%
test_ei_decode_long(suite) -> [];
test_ei_decode_long(Config) when is_list(Config) ->
?line P = runner:start(?test_ei_decode_long),
send_integers(P),
?line runner:recv_eot(P),
ok.
%% ######################################################################## %%
test_ei_decode_ulong(suite) -> [];
test_ei_decode_ulong(Config) when is_list(Config) ->
?line P = runner:start(?test_ei_decode_ulong),
send_integers(P),
?line runner:recv_eot(P),
ok.
% (*) In practical terms, other values may fit into the ext format
% i32 is signed 32 bit on C side
% u32 is unsigned 32 bit on C side
%% ######################################################################## %%
test_ei_decode_longlong(suite) -> [];
test_ei_decode_longlong(Config) when is_list(Config) ->
case os:type() of
vxworks ->
{skip,"Skipped on VxWorks"};
_ ->
?line P = runner:start(?test_ei_decode_longlong),
send_integers2(P),
?line runner:recv_eot(P),
ok
end.
%% ######################################################################## %%
test_ei_decode_ulonglong(suite) -> [];
test_ei_decode_ulonglong(Config) when is_list(Config) ->
case os:type() of
vxworks ->
{skip,"Skipped on VxWorks"};
_ ->
?line P = runner:start(?test_ei_decode_ulonglong),
send_integers2(P),
?line runner:recv_eot(P),
ok
end.
%% ######################################################################## %%
%% A "character" for us is an 8 bit integer, alwasy positive, i.e.
%% it is unsigned.
%% FIXME maybe the API should change to use "unsigned char" to be clear?!
test_ei_decode_char(suite) -> [];
test_ei_decode_char(Config) when is_list(Config) ->
?line P = runner:start(?test_ei_decode_char),
?line send_term_as_binary(P,0),
?line send_term_as_binary(P,16#7f),
?line send_term_as_binary(P,16#ff),
?line send_term_as_binary(P, []), % illegal type
?line runner:recv_eot(P),
ok.
%% ######################################################################## %%
test_ei_decode_nonoptimal(suite) -> [];
test_ei_decode_nonoptimal(Config) when is_list(Config) ->
?line P = runner:start(?test_ei_decode_nonoptimal),
send_non_optimal_pos(P), % decode_char
send_non_optimal(P), % decode_long
send_non_optimal_pos(P), % decode_ulong
case os:type() of
vxworks ->
ok;
_ ->
send_non_optimal(P), % decode_longlong
send_non_optimal_pos(P) % decode_ulonglong
end,
?line runner:recv_eot(P),
ok.
send_non_optimal(P) ->
send_non_optimal_pos(P),
send_non_optimal_neg(P).
send_non_optimal_pos(P) ->
?line send_raw(P, <<131,97,42>>),
?line send_raw(P, <<131,98,42:32>>),
?line send_raw(P, <<131,110,1,0,42>>),
?line send_raw(P, <<131,110,2,0,42,0>>),
?line send_raw(P, <<131,110,4,0,42,0,0,0>>),
?line send_raw(P, <<131,111,0,0,0,1,0,42>>),
?line send_raw(P, <<131,111,0,0,0,2,0,42,0>>),
?line send_raw(P, <<131,111,0,0,0,3,0,42,0,0>>),
?line send_raw(P, <<131,111,0,0,0,6,0,42,0,0,0,0,0>>),
ok.
send_non_optimal_neg(P) ->
% ?line send_raw(P, <<131,97,-42>>),
?line send_raw(P, <<131,98,-42:32>>),
?line send_raw(P, <<131,110,1,1,42>>),
?line send_raw(P, <<131,110,2,1,42,0>>),
?line send_raw(P, <<131,110,4,1,42,0,0,0>>),
?line send_raw(P, <<131,111,0,0,0,1,1,42>>),
?line send_raw(P, <<131,111,0,0,0,2,1,42,0>>),
?line send_raw(P, <<131,111,0,0,0,3,1,42,0,0>>),
?line send_raw(P, <<131,111,0,0,0,6,1,42,0,0,0,0,0>>),
ok.
%% ######################################################################## %%
test_ei_decode_misc(suite) -> [];
test_ei_decode_misc(Config) when is_list(Config) ->
?line P = runner:start(?test_ei_decode_misc),
?line send_term_as_binary(P,0.0),
?line send_term_as_binary(P,-1.0),
?line send_term_as_binary(P,1.0),
?line send_term_as_binary(P,false),
?line send_term_as_binary(P,true),
?line send_term_as_binary(P,foo),
?line send_term_as_binary(P,''),
?line send_term_as_binary(P,'ÅÄÖåäö'),
?line send_term_as_binary(P,"foo"),
?line send_term_as_binary(P,""),
?line send_term_as_binary(P,"ÅÄÖåäö"),
?line send_term_as_binary(P,<<"foo">>),
?line send_term_as_binary(P,<<>>),
?line send_term_as_binary(P,<<"ÅÄÖåäö">>),
% ?line send_term_as_binary(P,{}),
% ?line send_term_as_binary(P,[]),
?line runner:recv_eot(P),
ok.
%% ######################################################################## %%
test_ei_decode_utf8_atom(Config) ->
?line P = runner:start(?test_ei_decode_utf8_atom),
send_utf8_atom_as_binary(P,"å"),
send_utf8_atom_as_binary(P,"ä"),
send_term_as_binary(P,'ö'),
send_term_as_binary(P,'õ'),
?line send_utf8_atom_as_binary(P,[1758]),
?line send_utf8_atom_as_binary(P,[1758,1758]),
?line send_utf8_atom_as_binary(P,[1758,1758,1758]),
?line send_utf8_atom_as_binary(P,[1758,1758,1758,1758]),
send_utf8_atom_as_binary(P,"a"),
send_utf8_atom_as_binary(P,"b"),
send_term_as_binary(P,'c'),
send_term_as_binary(P,'d'),
?line runner:recv_eot(P),
ok.
%% ######################################################################## %%
send_term_as_binary(Port, Term) when is_port(Port) ->
Port ! {self(), {command, term_to_binary(Term)}}.
send_raw(Port, Bin) when is_port(Port) ->
Port ! {self(), {command, Bin}}.
send_utf8_atom_as_binary(Port, String) ->
Port ! {self(), {command, term_to_binary(uc_atup(String))}}.
send_integers(P) ->
?line send_term_as_binary(P,0), % SMALL_INTEGER_EXT smallest
?line send_term_as_binary(P,255), % SMALL_INTEGER_EXT largest
?line send_term_as_binary(P,256), % INTEGER_EXT smallest pos (*)
?line send_term_as_binary(P,-1), % INTEGER_EXT largest neg
?line send_term_as_binary(P, 16#07ffffff), % INTEGER_EXT old largest (28 bits)
?line send_term_as_binary(P,-16#08000000), % INTEGER_EXT old smallest
?line send_term_as_binary(P, 16#08000000), % SMALL_BIG_EXT old smallest pos(*)
?line send_term_as_binary(P,-16#08000001), % SMALL_BIG_EXT old largest neg (*)
?line send_term_as_binary(P, 16#7fffffff), % INTEGER_EXT new largest (32 bits)
?line send_term_as_binary(P,-16#80000000), % INTEGER_EXT new smallest (32 bis)
?line send_term_as_binary(P, 16#80000000), % SMALL_BIG_EXT new smallest pos(*)
?line send_term_as_binary(P,-16#80000001), % SMALL_BIG_EXT new largest neg (*)
case erlang:system_info({wordsize,external}) of
4 ->
?line send_term_as_binary(P, 16#80000000),% SMALL_BIG_EXT u32
?line send_term_as_binary(P, 16#ffffffff),% SMALL_BIG_EXT largest u32
?line send_term_as_binary(P, 16#7fffffffffff), % largest i48
?line send_term_as_binary(P,-16#800000000000), % smallest i48
?line send_term_as_binary(P, 16#ffffffffffff), % largest u48
?line send_term_as_binary(P, 16#7fffffffffffffff), % largest i64
?line send_term_as_binary(P,-16#8000000000000000), % smallest i64
?line send_term_as_binary(P, 16#ffffffffffffffff); % largest u64
8 ->
?line send_term_as_binary(P, 16#8000000000000000),% SMALL_BIG_EXT u64
% SMALL_BIG_EXT largest u64
?line send_term_as_binary(P, 16#ffffffffffffffff),
% largest i96
?line send_term_as_binary(P, 16#7fffffffffffffffffffffff),
% smallest i96
?line send_term_as_binary(P,-16#800000000000000000000000),
% largest u96
?line send_term_as_binary(P, 16#ffffffffffffffffffffffff),
% largest i128
?line send_term_as_binary(P, 16#7fffffffffffffffffffffffffffffff),
% smallest i128
?line send_term_as_binary(P,-16#80000000000000000000000000000000),
% largest u128
?line send_term_as_binary(P, 16#ffffffffffffffffffffffffffffffff)
end,
?line send_term_as_binary(P, []), % illegal type
ok.
send_integers2(P) ->
?line send_term_as_binary(P,0), % SMALL_INTEGER_EXT smallest
?line send_term_as_binary(P,255), % SMALL_INTEGER_EXT largest
?line send_term_as_binary(P,256), % INTEGER_EXT smallest pos (*)
?line send_term_as_binary(P,-1), % INTEGER_EXT largest neg
?line send_term_as_binary(P, 16#07ffffff), % INTEGER_EXT old largest (28 bits)
?line send_term_as_binary(P,-16#08000000), % INTEGER_EXT old smallest
?line send_term_as_binary(P, 16#08000000), % SMALL_BIG_EXT old smallest pos(*)
?line send_term_as_binary(P,-16#08000001), % SMALL_BIG_EXT old largest neg (*)
?line send_term_as_binary(P, 16#7fffffff), % INTEGER_EXT new largest (32 bits)
?line send_term_as_binary(P,-16#80000000), % INTEGER_EXT new smallest
?line send_term_as_binary(P, 16#80000000), % SMALL_BIG_EXT new smallest pos(*)
?line send_term_as_binary(P,-16#80000001), % SMALL_BIG_EXT new largest neg (*)
?line send_term_as_binary(P, 16#ffffffff),% SMALL_BIG_EXT largest u32
?line send_term_as_binary(P, 16#7fffffffffff), % largest i48
?line send_term_as_binary(P,-16#800000000000), % smallest i48
?line send_term_as_binary(P, 16#ffffffffffff), % largest u48
?line send_term_as_binary(P, 16#7fffffffffffffff), % largest i64
?line send_term_as_binary(P,-16#8000000000000000), % smallest i64
?line send_term_as_binary(P, 16#ffffffffffffffff), % largest u64
?line send_term_as_binary(P, []), % illegal type
ok.
uc_atup(ATxt) ->
string_to_atom(ATxt).
string_to_atom(String) ->
Utf8List = string_to_utf8_list(String),
Len = length(Utf8List),
TagLen = case Len < 256 of
true -> [119, Len];
false -> [118, Len bsr 8, Len band 16#ff]
end,
binary_to_term(list_to_binary([131, TagLen, Utf8List])).
string_to_utf8_list([]) ->
[];
string_to_utf8_list([CP|CPs]) when is_integer(CP),
0 =< CP,
CP =< 16#7F ->
[CP | string_to_utf8_list(CPs)];
string_to_utf8_list([CP|CPs]) when is_integer(CP),
16#80 =< CP,
CP =< 16#7FF ->
[16#C0 bor (CP bsr 6),
16#80 bor (16#3F band CP)
| string_to_utf8_list(CPs)];
string_to_utf8_list([CP|CPs]) when is_integer(CP),
16#800 =< CP,
CP =< 16#FFFF ->
[16#E0 bor (CP bsr 12),
16#80 bor (16#3F band (CP bsr 6)),
16#80 bor (16#3F band CP)
| string_to_utf8_list(CPs)];
string_to_utf8_list([CP|CPs]) when is_integer(CP),
16#10000 =< CP,
CP =< 16#10FFFF ->
[16#F0 bor (CP bsr 18),
16#80 bor (16#3F band (CP bsr 12)),
16#80 bor (16#3F band (CP bsr 6)),
16#80 bor (16#3F band CP)
| string_to_utf8_list(CPs)].
|
