fb11e647
 vrobic
reseau statique a...
|
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
|
/*
* Copyright (C) 2014 Martine Lenders <mlenders@inf.fu-berlin.de>
* Copyright (C) 2015 Eistec AB
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
#include <limits.h>
#include "embUnit.h"
#include "atomic.h"
#include "tests-core.h"
/* Test atomic_set_to_one on a variable set to 0 */
static void test_atomic_set_to_one_zero(void)
{
atomic_int_t res = ATOMIC_INIT(0);
TEST_ASSERT_EQUAL_INT(1, atomic_set_to_one(&res));
TEST_ASSERT_EQUAL_INT(1, ATOMIC_VALUE(res));
}
/* Test atomic_set_to_one on a variable set to 1 */
static void test_atomic_set_to_one_one(void)
{
atomic_int_t res = ATOMIC_INIT(1);
TEST_ASSERT_EQUAL_INT(0, atomic_set_to_one(&res));
TEST_ASSERT_EQUAL_INT(1, ATOMIC_VALUE(res));
}
/* Test atomic_set_to_one twice */
static void test_atomic_set_to_one_twice(void)
{
atomic_int_t res = ATOMIC_INIT(0);
TEST_ASSERT_EQUAL_INT(1, atomic_set_to_one(&res));
TEST_ASSERT_EQUAL_INT(1, ATOMIC_VALUE(res));
TEST_ASSERT_EQUAL_INT(0, atomic_set_to_one(&res));
TEST_ASSERT_EQUAL_INT(1, ATOMIC_VALUE(res));
}
/* Test atomic_set_to_zero on a variable set to 0 */
static void test_atomic_set_to_zero_zero(void)
{
atomic_int_t res = ATOMIC_INIT(0);
TEST_ASSERT_EQUAL_INT(0, atomic_set_to_zero(&res));
TEST_ASSERT_EQUAL_INT(0, ATOMIC_VALUE(res));
}
/* Test atomic_set_to_zero on a variable set to 1 */
static void test_atomic_set_to_zero_one(void)
{
atomic_int_t res = ATOMIC_INIT(1);
TEST_ASSERT_EQUAL_INT(1, atomic_set_to_zero(&res));
TEST_ASSERT_EQUAL_INT(0, ATOMIC_VALUE(res));
}
/* Test atomic_set_to_zero twice */
static void test_atomic_set_to_zero_twice(void)
{
atomic_int_t res = ATOMIC_INIT(1);
TEST_ASSERT_EQUAL_INT(1, atomic_set_to_zero(&res));
TEST_ASSERT_EQUAL_INT(0, ATOMIC_VALUE(res));
TEST_ASSERT_EQUAL_INT(0, atomic_set_to_zero(&res));
TEST_ASSERT_EQUAL_INT(0, ATOMIC_VALUE(res));
}
/* Test atomic_inc */
static void test_atomic_inc_positive(void)
{
atomic_int_t res = ATOMIC_INIT(0);
TEST_ASSERT_EQUAL_INT(0, atomic_inc(&res));
TEST_ASSERT_EQUAL_INT(1, ATOMIC_VALUE(res));
TEST_ASSERT_EQUAL_INT(1, atomic_inc(&res));
TEST_ASSERT_EQUAL_INT(2, ATOMIC_VALUE(res));
ATOMIC_VALUE(res) = 0;
for (int i = 0; i < 512; ++i) {
TEST_ASSERT_EQUAL_INT(i, atomic_inc(&res));
TEST_ASSERT_EQUAL_INT(i + 1, ATOMIC_VALUE(res));
}
}
static void test_atomic_inc_negative(void)
{
atomic_int_t res = ATOMIC_INIT(-99);
for (int i = -99; i < 123; ++i) {
TEST_ASSERT_EQUAL_INT(i, atomic_inc(&res));
TEST_ASSERT_EQUAL_INT(i + 1, ATOMIC_VALUE(res));
}
}
static void test_atomic_inc_rollover(void)
{
atomic_int_t res = ATOMIC_INIT(INT_MAX - 30);
for (int i = 0; i < 30; ++i) {
TEST_ASSERT_EQUAL_INT(INT_MAX - 30 + i, atomic_inc(&res));
TEST_ASSERT_EQUAL_INT(INT_MAX - 30 + i + 1, ATOMIC_VALUE(res));
}
TEST_ASSERT_EQUAL_INT(INT_MAX, atomic_inc(&res));
TEST_ASSERT_EQUAL_INT(INT_MIN, ATOMIC_VALUE(res));
TEST_ASSERT_EQUAL_INT(INT_MIN, atomic_inc(&res));
TEST_ASSERT_EQUAL_INT(INT_MIN + 1, ATOMIC_VALUE(res));
TEST_ASSERT_EQUAL_INT(INT_MIN + 1, atomic_inc(&res));
TEST_ASSERT_EQUAL_INT(INT_MIN + 2, ATOMIC_VALUE(res));
}
/* Test atomic_dec */
static void test_atomic_dec_negative(void)
{
atomic_int_t res = ATOMIC_INIT(0);
TEST_ASSERT_EQUAL_INT(0, atomic_dec(&res));
TEST_ASSERT_EQUAL_INT(-1, ATOMIC_VALUE(res));
TEST_ASSERT_EQUAL_INT(-1, atomic_dec(&res));
TEST_ASSERT_EQUAL_INT(-2, ATOMIC_VALUE(res));
ATOMIC_VALUE(res) = 0;
for (int i = 0; i < 512; ++i) {
TEST_ASSERT_EQUAL_INT(-i, atomic_dec(&res));
TEST_ASSERT_EQUAL_INT(-i - 1, ATOMIC_VALUE(res));
}
}
static void test_atomic_dec_positive(void)
{
atomic_int_t res = ATOMIC_INIT(99);
for (int i = 99; i < -123; --i) {
TEST_ASSERT_EQUAL_INT(i, atomic_dec(&res));
TEST_ASSERT_EQUAL_INT(i - 1, ATOMIC_VALUE(res));
}
}
static void test_atomic_dec_rollover(void)
{
atomic_int_t res = ATOMIC_INIT(INT_MIN + 30);
for (int i = 0; i < 30; ++i) {
TEST_ASSERT_EQUAL_INT(INT_MIN + 30 - i, atomic_dec(&res));
TEST_ASSERT_EQUAL_INT(INT_MIN + 30 - i - 1, ATOMIC_VALUE(res));
}
TEST_ASSERT_EQUAL_INT(INT_MIN, atomic_dec(&res));
TEST_ASSERT_EQUAL_INT(INT_MAX, ATOMIC_VALUE(res));
TEST_ASSERT_EQUAL_INT(INT_MAX, atomic_dec(&res));
TEST_ASSERT_EQUAL_INT(INT_MAX - 1, ATOMIC_VALUE(res));
TEST_ASSERT_EQUAL_INT(INT_MAX - 1, atomic_dec(&res));
TEST_ASSERT_EQUAL_INT(INT_MAX - 2, ATOMIC_VALUE(res));
}
/* Test atomic_cas with a correct old value */
static void test_atomic_cas_same(void)
{
atomic_int_t res = ATOMIC_INIT(0);
TEST_ASSERT_EQUAL_INT(1, atomic_cas(&res, 0, 12345));
TEST_ASSERT_EQUAL_INT(12345, ATOMIC_VALUE(res));
TEST_ASSERT_EQUAL_INT(1, atomic_cas(&res, 12345, -9876));
TEST_ASSERT_EQUAL_INT(-9876, ATOMIC_VALUE(res));
TEST_ASSERT_EQUAL_INT(1, atomic_cas(&res, -9876, -9876));
TEST_ASSERT_EQUAL_INT(-9876, ATOMIC_VALUE(res));
TEST_ASSERT_EQUAL_INT(1, atomic_cas(&res, -9876, 0));
TEST_ASSERT_EQUAL_INT(0, ATOMIC_VALUE(res));
}
/* Test atomic_cas with a non-matching old value */
static void test_atomic_cas_diff(void)
{
atomic_int_t res = ATOMIC_INIT(32767);
TEST_ASSERT_EQUAL_INT(0, atomic_cas(&res, 22222, 12345));
TEST_ASSERT_EQUAL_INT(32767, ATOMIC_VALUE(res));
ATOMIC_VALUE(res) = -12345;
TEST_ASSERT_EQUAL_INT(0, atomic_cas(&res, 12345, 12345));
TEST_ASSERT_EQUAL_INT(-12345, ATOMIC_VALUE(res));
TEST_ASSERT_EQUAL_INT(0, atomic_cas(&res, 12345, 12345));
TEST_ASSERT_EQUAL_INT(-12345, ATOMIC_VALUE(res));
TEST_ASSERT_EQUAL_INT(0, atomic_cas(&res, 12345, -12345));
TEST_ASSERT_EQUAL_INT(-12345, ATOMIC_VALUE(res));
}
/* Test ATOMIC_VALUE */
static void test_atomic_value(void)
{
atomic_int_t res = ATOMIC_INIT(12345);
atomic_int_t *ptr = &res;
TEST_ASSERT_EQUAL_INT(12345, ATOMIC_VALUE(res));
ATOMIC_VALUE(res) = 24332;
TEST_ASSERT_EQUAL_INT(24332, ATOMIC_VALUE(res));
TEST_ASSERT_EQUAL_INT(24332, res.value);
res.value = 12323;
TEST_ASSERT_EQUAL_INT(ATOMIC_VALUE(res), res.value);
TEST_ASSERT_EQUAL_INT(ATOMIC_VALUE(*ptr), res.value);
}
/* ATOMIC_INIT is implicitly tested by the other tests */
Test *tests_core_atomic_tests(void)
{
EMB_UNIT_TESTFIXTURES(fixtures) {
new_TestFixture(test_atomic_set_to_one_one),
new_TestFixture(test_atomic_set_to_one_zero),
new_TestFixture(test_atomic_set_to_one_twice),
new_TestFixture(test_atomic_set_to_zero_one),
new_TestFixture(test_atomic_set_to_zero_zero),
new_TestFixture(test_atomic_set_to_zero_twice),
new_TestFixture(test_atomic_inc_positive),
new_TestFixture(test_atomic_inc_negative),
new_TestFixture(test_atomic_inc_rollover),
new_TestFixture(test_atomic_dec_positive),
new_TestFixture(test_atomic_dec_negative),
new_TestFixture(test_atomic_dec_rollover),
new_TestFixture(test_atomic_cas_same),
new_TestFixture(test_atomic_cas_diff),
new_TestFixture(test_atomic_value),
};
EMB_UNIT_TESTCALLER(core_atomic_tests, NULL, NULL,
fixtures);
return (Test *)&core_atomic_tests;
}
|