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
|
/* Test for support_timespec_check_in_range function.
Copyright (C) 2020 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <support/timespec.h>
#include <support/check.h>
#include <limits.h>
#include <intprops.h>
#define TIMESPEC_HZ 1000000000
struct timespec_ns_test_case
{
struct timespec time;
time_t time_ns;
};
struct timespec_norm_test_case
{
struct timespec time;
struct timespec norm;
};
struct timespec_test_case
{
struct timespec expected;
struct timespec observed;
double upper_bound;
double lower_bound;
int result;
};
#define TIME_T_MIN TYPE_MINIMUM (time_t)
#define TIME_T_MAX TYPE_MAXIMUM (time_t)
/* Test cases for timespec_ns */
struct timespec_ns_test_case ns_cases[] = {
{.time = {.tv_sec = 0, .tv_nsec = 0},
.time_ns = 0,
},
{.time = {.tv_sec = 0, .tv_nsec = 1},
.time_ns = 1,
},
{.time = {.tv_sec = 1, .tv_nsec = 0},
.time_ns = TIMESPEC_HZ,
},
{.time = {.tv_sec = 1, .tv_nsec = 1},
.time_ns = TIMESPEC_HZ + 1,
},
{.time = {.tv_sec = 0, .tv_nsec = -1},
.time_ns = -1,
},
{.time = {.tv_sec = -1, .tv_nsec = 0},
.time_ns = -TIMESPEC_HZ,
},
{.time = {.tv_sec = -1, .tv_nsec = -1},
.time_ns = -TIMESPEC_HZ - 1,
},
{.time = {.tv_sec = 1, .tv_nsec = -1},
.time_ns = TIMESPEC_HZ - 1,
},
{.time = {.tv_sec = -1, .tv_nsec = 1},
.time_ns = -TIMESPEC_HZ + 1,
},
/* Overflow bondary by 2 */
{.time = {.tv_sec = TIME_T_MAX / TIMESPEC_HZ,
.tv_nsec = TIME_T_MAX % TIMESPEC_HZ - 1},
.time_ns = TIME_T_MAX - 1,
},
/* Overflow bondary */
{.time = {.tv_sec = TIME_T_MAX / TIMESPEC_HZ,
.tv_nsec = TIME_T_MAX % TIMESPEC_HZ},
.time_ns = TIME_T_MAX,
},
/* Underflow bondary by 1 */
{.time = {.tv_sec = TIME_T_MIN / TIMESPEC_HZ,
.tv_nsec = TIME_T_MIN % TIMESPEC_HZ + 1},
.time_ns = TIME_T_MIN + 1,
},
/* Underflow bondary */
{.time = {.tv_sec = TIME_T_MIN / TIMESPEC_HZ,
.tv_nsec = TIME_T_MIN % TIMESPEC_HZ},
.time_ns = TIME_T_MIN,
},
/* Multiplication overflow */
{.time = {.tv_sec = TIME_T_MAX / TIMESPEC_HZ + 1, .tv_nsec = 1},
.time_ns = TIME_T_MAX,
},
/* Multiplication underflow */
{.time = {.tv_sec = TIME_T_MIN / TIMESPEC_HZ - 1, .tv_nsec = -1},
.time_ns = TIME_T_MIN,
},
/* Sum overflows */
{.time = {.tv_sec = TIME_T_MAX / TIMESPEC_HZ,
.tv_nsec = TIME_T_MAX % TIMESPEC_HZ + 1},
.time_ns = TIME_T_MAX,
},
/* Sum underflow */
{.time = {.tv_sec = TIME_T_MIN / TIMESPEC_HZ,
.tv_nsec = TIME_T_MIN % TIMESPEC_HZ - 1},
.time_ns = TIME_T_MIN,
}
};
/* Test cases for timespec_norm */
struct timespec_norm_test_case norm_cases[] = {
/* Positive cases */
{.time = {.tv_sec = 0, .tv_nsec = 0},
.norm = {.tv_sec = 0, .tv_nsec = 0}
},
{.time = {.tv_sec = 1, .tv_nsec = 0},
.norm = {.tv_sec = 1, .tv_nsec = 0}
},
{.time = {.tv_sec = 0, .tv_nsec = 1},
.norm = {.tv_sec = 0, .tv_nsec = 1}
},
{.time = {.tv_sec = 0, .tv_nsec = TIMESPEC_HZ},
.norm = {.tv_sec = 1, .tv_nsec = 0}
},
{.time = {.tv_sec = 0, .tv_nsec = TIMESPEC_HZ + 1},
.norm = {.tv_sec = 1, .tv_nsec = 1}
},
{.time = {.tv_sec = 1, .tv_nsec = TIMESPEC_HZ},
.norm = {.tv_sec = 2, .tv_nsec = 0}
},
{.time = {.tv_sec = 1, .tv_nsec = TIMESPEC_HZ + 1},
.norm = {.tv_sec = 2, .tv_nsec = 1}
},
/* Negative cases */
{.time = {.tv_sec = 0, .tv_nsec = -TIMESPEC_HZ},
.norm = {.tv_sec = -1, .tv_nsec = 0}
},
{.time = {.tv_sec = 0, .tv_nsec = -TIMESPEC_HZ - 1},
.norm = {.tv_sec = -1, .tv_nsec = -1}
},
{.time = {.tv_sec = -1, .tv_nsec = -TIMESPEC_HZ},
.norm = {.tv_sec = -2, .tv_nsec = 0}
},
{.time = {.tv_sec = -1, .tv_nsec = -TIMESPEC_HZ - 1},
.norm = {.tv_sec = -2, .tv_nsec = -1}
},
/* Overflow bondary by 2 */
{.time = {.tv_sec = TIME_T_MAX - 2, .tv_nsec = TIMESPEC_HZ + 1},
.norm = {.tv_sec = TIME_T_MAX - 1, 1},
},
/* Overflow bondary by 1 */
{.time = {.tv_sec = TIME_T_MAX - 1, .tv_nsec = TIMESPEC_HZ + 1},
.norm = {.tv_sec = TIME_T_MAX, .tv_nsec = 1},
},
/* Underflow bondary by 2 */
{.time = {.tv_sec = TIME_T_MIN + 2, .tv_nsec = -TIMESPEC_HZ - 1},
.norm = {.tv_sec = TIME_T_MIN + 1, -1},
},
/* Underflow bondary by 1 */
{.time = {.tv_sec = TIME_T_MIN + 1, .tv_nsec = -TIMESPEC_HZ - 1},
.norm = {.tv_sec = TIME_T_MIN, .tv_nsec = -1},
},
/* SUM overflow */
{.time = {.tv_sec = TIME_T_MAX, .tv_nsec = TIMESPEC_HZ},
.norm = {.tv_sec = TIME_T_MAX, .tv_nsec = TIMESPEC_HZ - 1},
},
/* SUM underflow */
{.time = {.tv_sec = TIME_T_MIN, .tv_nsec = -TIMESPEC_HZ},
.norm = {.tv_sec = TIME_T_MIN, .tv_nsec = -1 * (TIMESPEC_HZ - 1)},
}
};
/* Test cases for timespec_check_in_range */
struct timespec_test_case check_cases[] = {
/* 0 - In range */
{.expected = {.tv_sec = 1, .tv_nsec = 0},
.observed = {.tv_sec = 1, .tv_nsec = 0},
.upper_bound = 1, .lower_bound = 1, .result = 1,
},
/* 1 - Out of range */
{.expected = {.tv_sec = 1, .tv_nsec = 0},
.observed = {.tv_sec = 2, .tv_nsec = 0},
.upper_bound = 1, .lower_bound = 1, .result = 0,
},
/* 2 - Upper Bound */
{.expected = {.tv_sec = 1, .tv_nsec = 0},
.observed = {.tv_sec = 2, .tv_nsec = 0},
.upper_bound = 2, .lower_bound = 1, .result = 1,
},
/* 3 - Lower Bound */
{.expected = {.tv_sec = 1, .tv_nsec = 0},
.observed = {.tv_sec = 0, .tv_nsec = 0},
.upper_bound = 1, .lower_bound = 0, .result = 1,
},
/* 4 - Out of range by nanosecs */
{.expected = {.tv_sec = 1, .tv_nsec = 0},
.observed = {.tv_sec = 1, .tv_nsec = 500},
.upper_bound = 1, .lower_bound = 1, .result = 0,
},
/* 5 - In range by nanosecs */
{.expected = {.tv_sec = 1, .tv_nsec = 0},
.observed = {.tv_sec = 1, .tv_nsec = 50000},
.upper_bound = 1.3, .lower_bound = 1, .result = 1,
},
/* 6 - Big nanosecs */
{.expected = {.tv_sec = 1, .tv_nsec = 0},
.observed = {.tv_sec = 0, .tv_nsec = 4000000},
.upper_bound = 1, .lower_bound = .001, .result = 1,
},
/* 7 - In range Negative values */
{.expected = {.tv_sec = -1, .tv_nsec = 0},
.observed = {.tv_sec = -1, .tv_nsec = 0},
.upper_bound = 1, .lower_bound = 1, .result = 1,
},
/* 8 - Out of range Negative values */
{.expected = {.tv_sec = -1, .tv_nsec = 0},
.observed = {.tv_sec = -1, .tv_nsec = 0},
.upper_bound = -1, .lower_bound = -1, .result = 0,
},
/* 9 - Negative values with negative nanosecs */
{.expected = {.tv_sec = -1, .tv_nsec = 0},
.observed = {.tv_sec = -1, .tv_nsec = -2000},
.upper_bound = 1, .lower_bound = 1, .result = 0,
},
/* 10 - Strict bounds */
{.expected = {.tv_sec = -1, .tv_nsec = 0},
.observed = {.tv_sec = -1, .tv_nsec = -20000},
.upper_bound = 1.00002, .lower_bound = 1.0000191, .result = 1,
},
/* 11 - Strict bounds with loose upper bound */
{.expected = {.tv_sec = 1, .tv_nsec = 20000},
.observed = {.tv_sec = 1, .tv_nsec = 30000},
.upper_bound = 1.0000100000, .lower_bound = 1.0000099998, .result = 1,
},
/* 12 - Strict bounds with loose lower bound */
{.expected = {.tv_sec = 1, .tv_nsec = 20000},
.observed = {.tv_sec = 1, .tv_nsec = 30000},
.upper_bound = 1.0000099999, .lower_bound = 1.00000999979, .result = 1,
},
/* 13 - Strict bounds highest precision */
{.expected = {.tv_sec = 1, .tv_nsec = 20000},
.observed = {.tv_sec = 1, .tv_nsec = 30000},
.upper_bound = 1.00000999980001, .lower_bound = 1.00000999979999, .result = 1,
},
/* Maximum/Minimum long values */
/* 14 */
{.expected = {.tv_sec = TIME_T_MAX, .tv_nsec = TIMESPEC_HZ - 1},
.observed = {.tv_sec = TIME_T_MAX, .tv_nsec = TIMESPEC_HZ - 2},
.upper_bound = 1, .lower_bound = .9, .result = 1,
},
/* 15 - support_timespec_ns overflow */
{.expected = {.tv_sec = TIME_T_MAX, .tv_nsec = TIMESPEC_HZ},
.observed = {.tv_sec = TIME_T_MAX, .tv_nsec = TIMESPEC_HZ},
.upper_bound = 1, .lower_bound = 1, .result = 1,
},
/* 16 - support_timespec_ns overflow + underflow */
{.expected = {.tv_sec = TIME_T_MAX, .tv_nsec = TIMESPEC_HZ},
.observed = {.tv_sec = TIME_T_MIN, .tv_nsec = -TIMESPEC_HZ},
.upper_bound = 1, .lower_bound = 1, .result = 0,
},
/* 17 - support_timespec_ns underflow */
{.expected = {.tv_sec = TIME_T_MIN, .tv_nsec = -TIMESPEC_HZ},
.observed = {.tv_sec = TIME_T_MIN, .tv_nsec = -TIMESPEC_HZ},
.upper_bound = 1, .lower_bound = 1, .result = 1,
},
/* 18 - support_timespec_ns underflow + overflow */
{.expected = {.tv_sec = TIME_T_MIN, .tv_nsec = -TIMESPEC_HZ},
.observed = {.tv_sec = TIME_T_MAX, .tv_nsec = TIMESPEC_HZ},
.upper_bound = 1, .lower_bound = 1, .result = 0,
},
/* 19 - Biggest division */
{.expected = {.tv_sec = TIME_T_MAX / TIMESPEC_HZ,
.tv_nsec = TIMESPEC_HZ - 1},
.observed = {.tv_sec = 0, .tv_nsec = 1},
.upper_bound = 1, .lower_bound = 1.0842021724855044e-19, .result = 1,
},
/* 20 - Lowest division */
{.expected = {.tv_sec = 0, .tv_nsec = 1},
.observed = {.tv_sec = TIME_T_MAX / TIMESPEC_HZ,
.tv_nsec = TIMESPEC_HZ - 1},
.upper_bound = TIME_T_MAX, .lower_bound = 1, .result = 1,
},
};
static int
do_test (void)
{
int i = 0;
int ntests = sizeof (ns_cases) / sizeof (ns_cases[0]);
printf("Testing support_timespec_ns\n");
for (i = 0; i < ntests; i++)
{
printf("Test case %d\n", i);
TEST_COMPARE (support_timespec_ns (ns_cases[i].time),
ns_cases[i].time_ns);
}
ntests = sizeof (norm_cases) / sizeof (norm_cases[0]);
struct timespec result;
printf("Testing support_timespec_normalize\n");
for (i = 0; i < ntests; i++)
{
printf("Test case %d\n", i);
result = support_timespec_normalize (norm_cases[i].time);
TEST_COMPARE (norm_cases[i].norm.tv_sec, result.tv_sec);
TEST_COMPARE (norm_cases[i].norm.tv_nsec, result.tv_nsec);
}
ntests = sizeof (check_cases) / sizeof (check_cases[0]);
printf("Testing support_timespec_check_in_range\n");
for (i = 0; i < ntests; i++)
{
/* Its hard to find which test failed with just the TEST_COMPARE report.
So here we print every running testcase as well. */
printf("Test case %d\n", i);
TEST_COMPARE (support_timespec_check_in_range
(check_cases[i].expected, check_cases[i].observed,
check_cases[i].lower_bound,
check_cases[i].upper_bound), check_cases[i].result);
}
return 0;
}
#include <support/test-driver.c>
|
