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6b71bf1b UH |
1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2015 Uwe Hermann <uwe@hermann-uwe.de> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #include <config.h> | |
22 | #include <stdlib.h> | |
23 | #include <math.h> | |
24 | #include <check.h> | |
25 | #include <libsigrok/libsigrok.h> | |
26 | #include "lib.h" | |
27 | ||
28 | static int sr_analog_init_(struct sr_datafeed_analog *analog, | |
29 | struct sr_analog_encoding *encoding, | |
30 | struct sr_analog_meaning *meaning, | |
31 | struct sr_analog_spec *spec, | |
32 | int digits) | |
33 | { | |
34 | memset(analog, 0, sizeof(*analog)); | |
35 | memset(encoding, 0, sizeof(*encoding)); | |
36 | memset(meaning, 0, sizeof(*meaning)); | |
37 | memset(spec, 0, sizeof(*spec)); | |
38 | ||
39 | analog->encoding = encoding; | |
40 | analog->meaning = meaning; | |
41 | analog->spec = spec; | |
42 | ||
43 | encoding->unitsize = sizeof(float); | |
44 | encoding->is_float = TRUE; | |
45 | #ifdef WORDS_BIGENDIAN | |
46 | encoding->is_bigendian = TRUE; | |
47 | #else | |
48 | encoding->is_bigendian = FALSE; | |
49 | #endif | |
50 | encoding->digits = digits; | |
51 | encoding->is_digits_decimal = TRUE; | |
52 | encoding->scale.p = 1; | |
53 | encoding->scale.q = 1; | |
54 | encoding->offset.p = 0; | |
55 | encoding->offset.q = 1; | |
56 | ||
57 | spec->spec_digits = digits; | |
58 | ||
59 | return SR_OK; | |
60 | } | |
61 | ||
62 | START_TEST(test_analog_to_float) | |
63 | { | |
64 | int ret; | |
65 | unsigned int i; | |
66 | float f, fout; | |
67 | struct sr_channel ch; | |
68 | struct sr_datafeed_analog analog; | |
69 | struct sr_analog_encoding encoding; | |
70 | struct sr_analog_meaning meaning; | |
71 | struct sr_analog_spec spec; | |
72 | const float v[] = {-12.9, -333.999, 0, 3.1415, 29.7, 989898.121212}; | |
73 | ||
74 | sr_analog_init_(&analog, &encoding, &meaning, &spec, 3); | |
75 | analog.num_samples = 1; | |
76 | analog.data = &f; | |
77 | meaning.channels = g_slist_append(NULL, &ch); | |
78 | ||
79 | for (i = 0; i < ARRAY_SIZE(v); i++) { | |
80 | fout = 19; | |
81 | f = v[i]; | |
82 | ret = sr_analog_to_float(&analog, &fout); | |
83 | fail_unless(ret == SR_OK, "sr_analog_to_float() failed: %d.", ret); | |
84 | fail_unless(fabs(f - fout) <= 0.001, "%f != %f", f, fout); | |
85 | } | |
86 | } | |
87 | END_TEST | |
88 | ||
89 | START_TEST(test_analog_to_float_null) | |
90 | { | |
91 | int ret; | |
92 | float f, fout; | |
93 | struct sr_datafeed_analog analog; | |
94 | struct sr_analog_encoding encoding; | |
95 | struct sr_analog_meaning meaning; | |
96 | struct sr_analog_spec spec; | |
97 | ||
98 | f = G_PI; | |
99 | sr_analog_init_(&analog, &encoding, &meaning, &spec, 3); | |
100 | analog.num_samples = 1; | |
101 | analog.data = &f; | |
102 | ||
103 | ret = sr_analog_to_float(NULL, &fout); | |
104 | fail_unless(ret == SR_ERR_ARG); | |
105 | ret = sr_analog_to_float(&analog, NULL); | |
106 | fail_unless(ret == SR_ERR_ARG); | |
107 | ret = sr_analog_to_float(NULL, NULL); | |
108 | fail_unless(ret == SR_ERR_ARG); | |
109 | ||
110 | analog.data = NULL; | |
111 | ret = sr_analog_to_float(&analog, &fout); | |
112 | fail_unless(ret == SR_ERR_ARG); | |
113 | analog.data = &f; | |
114 | ||
115 | analog.meaning = NULL; | |
116 | ret = sr_analog_to_float(&analog, &fout); | |
117 | fail_unless(ret == SR_ERR_ARG); | |
118 | analog.meaning = &meaning; | |
119 | ||
120 | analog.encoding = NULL; | |
121 | ret = sr_analog_to_float(&analog, &fout); | |
122 | fail_unless(ret == SR_ERR_ARG); | |
123 | analog.encoding = &encoding; | |
124 | } | |
125 | END_TEST | |
126 | ||
6b71bf1b UH |
127 | START_TEST(test_analog_unit_to_string) |
128 | { | |
129 | int ret; | |
130 | unsigned int i; | |
131 | char *result; | |
132 | struct sr_datafeed_analog analog; | |
133 | struct sr_analog_encoding encoding; | |
134 | struct sr_analog_meaning meaning; | |
135 | struct sr_analog_spec spec; | |
136 | const char *r[] = {" V RMS"}; | |
137 | ||
138 | sr_analog_init_(&analog, &encoding, &meaning, &spec, 3); | |
139 | ||
140 | for (i = -1; i < ARRAY_SIZE(r); i++) { | |
141 | meaning.unit = SR_UNIT_VOLT; | |
142 | meaning.mqflags = SR_MQFLAG_RMS; | |
143 | ret = sr_analog_unit_to_string(&analog, &result); | |
144 | fail_unless(ret == SR_OK); | |
145 | fail_unless(result != NULL); | |
146 | fail_unless(!strcmp(result, r[i]), "%s != %s", result, r[i]); | |
147 | g_free(result); | |
148 | } | |
149 | } | |
150 | END_TEST | |
151 | ||
152 | START_TEST(test_analog_unit_to_string_null) | |
153 | { | |
154 | int ret; | |
155 | char *result; | |
156 | struct sr_datafeed_analog analog; | |
157 | struct sr_analog_encoding encoding; | |
158 | struct sr_analog_meaning meaning; | |
159 | struct sr_analog_spec spec; | |
160 | ||
161 | sr_analog_init_(&analog, &encoding, &meaning, &spec, 3); | |
162 | ||
163 | meaning.unit = SR_UNIT_VOLT; | |
164 | meaning.mqflags = SR_MQFLAG_RMS; | |
165 | ||
166 | ret = sr_analog_unit_to_string(NULL, &result); | |
167 | fail_unless(ret == SR_ERR_ARG); | |
168 | ret = sr_analog_unit_to_string(&analog, NULL); | |
169 | fail_unless(ret == SR_ERR_ARG); | |
170 | ret = sr_analog_unit_to_string(NULL, NULL); | |
171 | fail_unless(ret == SR_ERR_ARG); | |
172 | ||
173 | analog.meaning = NULL; | |
174 | ret = sr_analog_unit_to_string(&analog, &result); | |
175 | fail_unless(ret == SR_ERR_ARG); | |
176 | } | |
177 | END_TEST | |
178 | ||
179 | START_TEST(test_set_rational) | |
180 | { | |
181 | unsigned int i; | |
182 | struct sr_rational r; | |
183 | const int64_t p[] = {0, 1, -5, INT64_MAX}; | |
184 | const uint64_t q[] = {0, 2, 7, UINT64_MAX}; | |
185 | ||
186 | for (i = 0; i < ARRAY_SIZE(p); i++) { | |
187 | sr_rational_set(&r, p[i], q[i]); | |
188 | fail_unless(r.p == p[i] && r.q == q[i]); | |
189 | } | |
190 | } | |
191 | END_TEST | |
192 | ||
193 | START_TEST(test_set_rational_null) | |
194 | { | |
195 | sr_rational_set(NULL, 5, 7); | |
196 | } | |
197 | END_TEST | |
198 | ||
bdba3626 SB |
199 | START_TEST(test_cmp_rational) |
200 | { | |
201 | const struct sr_rational r[] = { { 1, 1 }, | |
202 | { 2, 2 }, | |
203 | { 1000, 1000 }, | |
204 | { INT64_MAX, INT64_MAX }, | |
205 | { 1, 4 }, | |
206 | { 2, 8 }, | |
207 | { INT64_MAX, UINT64_MAX }, | |
208 | { INT64_MIN, UINT64_MAX }, | |
209 | }; | |
210 | ||
211 | fail_unless(sr_rational_eq(&r[0], &r[0]) == 1); | |
212 | fail_unless(sr_rational_eq(&r[0], &r[1]) == 1); | |
213 | fail_unless(sr_rational_eq(&r[1], &r[2]) == 1); | |
214 | fail_unless(sr_rational_eq(&r[2], &r[3]) == 1); | |
215 | fail_unless(sr_rational_eq(&r[3], &r[3]) == 1); | |
216 | ||
217 | fail_unless(sr_rational_eq(&r[4], &r[4]) == 1); | |
218 | fail_unless(sr_rational_eq(&r[4], &r[5]) == 1); | |
219 | fail_unless(sr_rational_eq(&r[5], &r[5]) == 1); | |
220 | ||
221 | fail_unless(sr_rational_eq(&r[6], &r[6]) == 1); | |
222 | fail_unless(sr_rational_eq(&r[7], &r[7]) == 1); | |
223 | ||
224 | fail_unless(sr_rational_eq(&r[1], &r[4]) == 0); | |
225 | } | |
226 | END_TEST | |
227 | ||
ee1b6054 SB |
228 | START_TEST(test_mult_rational) |
229 | { | |
230 | const struct sr_rational r[][3] = { | |
231 | /* a * b = c */ | |
232 | { { 1, 1 }, { 1, 1 }, { 1, 1 }}, | |
233 | { { 2, 1 }, { 3, 1 }, { 6, 1 }}, | |
234 | { { 1, 2 }, { 2, 1 }, { 1, 1 }}, | |
235 | /* Test negative numbers */ | |
236 | { { -1, 2 }, { 2, 1 }, { -1, 1 }}, | |
237 | { { -1, 2 }, { -2, 1 }, { 1, 1 }}, | |
238 | { { -(1ll<<20), (1ll<<10) }, { -(1ll<<20), 1 }, { (1ll<<30), 1 }}, | |
239 | /* Test reduction */ | |
240 | { { INT32_MAX, (1ll<<12) }, { (1<<2), 1 }, { INT32_MAX, (1ll<<10) }}, | |
241 | { { INT64_MAX, (1ll<<63) }, { (1<<3), 1 }, { INT64_MAX, (1ll<<60) }}, | |
242 | /* Test large numbers */ | |
243 | { { (1ll<<40), (1ll<<10) }, { (1ll<<30), 1 }, { (1ll<<60), 1 }}, | |
244 | { { -(1ll<<40), (1ll<<10) }, { -(1ll<<30), 1 }, { (1ll<<60), 1 }}, | |
245 | ||
246 | { { 1000, 1 }, { 8000, 1 }, { 8000000, 1 }}, | |
247 | { { 10000, 1 }, { 80000, 1 }, { 800000000, 1 }}, | |
248 | { { 10000*3, 4 }, { 80000*3, 1 }, { 200000000*9, 1 }}, | |
249 | { { 1, 1000 }, { 1, 8000 }, { 1, 8000000 }}, | |
250 | { { 1, 10000 }, { 1, 80000 }, { 1, 800000000 }}, | |
251 | { { 4, 10000*3 }, { 1, 80000*3 }, { 1, 200000000*9 }}, | |
252 | ||
253 | { { -10000*3, 4 }, { 80000*3, 1 }, { -200000000*9, 1 }}, | |
254 | { { 10000*3, 4 }, { -80000*3, 1 }, { -200000000*9, 1 }}, | |
255 | }; | |
256 | ||
257 | for (unsigned i = 0; i < ARRAY_SIZE(r); i++) { | |
258 | struct sr_rational res; | |
259 | ||
260 | int rc = sr_rational_mult(&res, &r[i][0], &r[i][1]); | |
261 | fail_unless(rc == SR_OK); | |
262 | fail_unless(sr_rational_eq(&res, &r[i][2]) == 1, | |
263 | "sr_rational_mult() failed: [%d] %ld/%lu != %ld/%lu.", | |
264 | i, res.p, res.q, r[i][2].p, r[i][2].q); | |
265 | } | |
266 | } | |
267 | END_TEST | |
268 | ||
17d5a11c SB |
269 | START_TEST(test_div_rational) |
270 | { | |
271 | const struct sr_rational r[][3] = { | |
272 | /* a * b = c */ | |
273 | { { 1, 1 }, { 1, 1 }, { 1, 1 }}, | |
274 | { { 2, 1 }, { 1, 3 }, { 6, 1 }}, | |
275 | { { 1, 2 }, { 1, 2 }, { 1, 1 }}, | |
276 | /* Test negative numbers */ | |
277 | { { -1, 2 }, { 1, 2 }, { -1, 1 }}, | |
278 | { { -1, 2 }, { -1, 2 }, { 1, 1 }}, | |
279 | { { -(1ll<<20), (1ll<<10) }, { -1, (1ll<<20) }, { (1ll<<30), 1 }}, | |
280 | /* Test reduction */ | |
281 | { { INT32_MAX, (1ll<<12) }, { 1, (1<<2) }, { INT32_MAX, (1ll<<10) }}, | |
282 | { { INT64_MAX, (1ll<<63) }, { 1, (1<<3) }, { INT64_MAX, (1ll<<60) }}, | |
283 | /* Test large numbers */ | |
284 | { { (1ll<<40), (1ll<<10) }, { 1, (1ll<<30) }, { (1ll<<60), 1 }}, | |
285 | { { -(1ll<<40), (1ll<<10) }, { -1, (1ll<<30) }, { (1ll<<60), 1 }}, | |
286 | ||
287 | { { 10000*3, 4 }, { 1, 80000*3 }, { 200000000*9, 1 }}, | |
288 | { { 4, 10000*3 }, { 80000*3, 1 }, { 1, 200000000*9 }}, | |
289 | ||
290 | { { -10000*3, 4 }, { 1, 80000*3 }, { -200000000*9, 1 }}, | |
291 | { { 10000*3, 4 }, { -1, 80000*3 }, { -200000000*9, 1 }}, | |
292 | }; | |
293 | ||
294 | for (unsigned i = 0; i < ARRAY_SIZE(r); i++) { | |
295 | struct sr_rational res; | |
296 | ||
297 | int rc = sr_rational_div(&res, &r[i][0], &r[i][1]); | |
298 | fail_unless(rc == SR_OK); | |
299 | fail_unless(sr_rational_eq(&res, &r[i][2]) == 1, | |
300 | "sr_rational_mult() failed: [%d] %ld/%lu != %ld/%lu.", | |
301 | i, res.p, res.q, r[i][2].p, r[i][2].q); | |
302 | } | |
303 | ||
304 | { | |
305 | struct sr_rational res; | |
306 | int rc = sr_rational_div(&res, &r[0][0], &((struct sr_rational){ 0, 5 })); | |
307 | ||
308 | fail_unless(rc == SR_ERR_ARG); | |
309 | } | |
310 | } | |
311 | END_TEST | |
312 | ||
6b71bf1b UH |
313 | Suite *suite_analog(void) |
314 | { | |
315 | Suite *s; | |
316 | TCase *tc; | |
317 | ||
318 | s = suite_create("analog"); | |
319 | ||
320 | tc = tcase_create("analog_to_float"); | |
321 | tcase_add_test(tc, test_analog_to_float); | |
322 | tcase_add_test(tc, test_analog_to_float_null); | |
6b71bf1b UH |
323 | tcase_add_test(tc, test_analog_unit_to_string); |
324 | tcase_add_test(tc, test_analog_unit_to_string_null); | |
325 | tcase_add_test(tc, test_set_rational); | |
326 | tcase_add_test(tc, test_set_rational_null); | |
bdba3626 | 327 | tcase_add_test(tc, test_cmp_rational); |
ee1b6054 | 328 | tcase_add_test(tc, test_mult_rational); |
17d5a11c | 329 | tcase_add_test(tc, test_div_rational); |
6b71bf1b UH |
330 | suite_add_tcase(s, tc); |
331 | ||
332 | return s; | |
333 | } |