]>
Commit | Line | Data |
---|---|---|
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 | |
2ea1fdf1 | 17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
6b71bf1b UH |
18 | */ |
19 | ||
20 | #include <config.h> | |
21 | #include <stdlib.h> | |
22 | #include <math.h> | |
23 | #include <check.h> | |
24 | #include <libsigrok/libsigrok.h> | |
25 | #include "lib.h" | |
26 | ||
6205515c GS |
27 | /* |
28 | * This test sequence cannot use internal helpers, since it's limited | |
29 | * to the library's public API (by design). That is why there are local | |
30 | * helper routines for endianess handling. | |
31 | */ | |
32 | ||
33 | static int host_be; | |
34 | ||
35 | static void get_host_endianess(void) | |
36 | { | |
37 | int x; | |
38 | uint8_t *p; | |
39 | ||
40 | p = (void *)&x; | |
41 | x = 1; | |
42 | host_be = *p ? 0 : 1; | |
43 | } | |
44 | ||
45 | static void swap_bytes(uint8_t *buff, size_t blen) | |
46 | { | |
47 | size_t idx; | |
48 | uint8_t tmp; | |
49 | ||
50 | for (idx = 0; idx < blen / 2; idx++) { | |
51 | tmp = buff[blen - 1 - idx]; | |
52 | buff[blen - 1 - idx] = buff[idx]; | |
53 | buff[idx] = tmp; | |
54 | } | |
55 | } | |
56 | ||
6b71bf1b UH |
57 | static int sr_analog_init_(struct sr_datafeed_analog *analog, |
58 | struct sr_analog_encoding *encoding, | |
59 | struct sr_analog_meaning *meaning, | |
60 | struct sr_analog_spec *spec, | |
61 | int digits) | |
62 | { | |
63 | memset(analog, 0, sizeof(*analog)); | |
64 | memset(encoding, 0, sizeof(*encoding)); | |
65 | memset(meaning, 0, sizeof(*meaning)); | |
66 | memset(spec, 0, sizeof(*spec)); | |
67 | ||
68 | analog->encoding = encoding; | |
69 | analog->meaning = meaning; | |
70 | analog->spec = spec; | |
71 | ||
72 | encoding->unitsize = sizeof(float); | |
73 | encoding->is_float = TRUE; | |
74 | #ifdef WORDS_BIGENDIAN | |
75 | encoding->is_bigendian = TRUE; | |
76 | #else | |
77 | encoding->is_bigendian = FALSE; | |
78 | #endif | |
79 | encoding->digits = digits; | |
80 | encoding->is_digits_decimal = TRUE; | |
81 | encoding->scale.p = 1; | |
82 | encoding->scale.q = 1; | |
83 | encoding->offset.p = 0; | |
84 | encoding->offset.q = 1; | |
85 | ||
86 | spec->spec_digits = digits; | |
87 | ||
88 | return SR_OK; | |
89 | } | |
90 | ||
91 | START_TEST(test_analog_to_float) | |
92 | { | |
93 | int ret; | |
94 | unsigned int i; | |
95 | float f, fout; | |
96 | struct sr_channel ch; | |
97 | struct sr_datafeed_analog analog; | |
98 | struct sr_analog_encoding encoding; | |
99 | struct sr_analog_meaning meaning; | |
100 | struct sr_analog_spec spec; | |
101 | const float v[] = {-12.9, -333.999, 0, 3.1415, 29.7, 989898.121212}; | |
102 | ||
103 | sr_analog_init_(&analog, &encoding, &meaning, &spec, 3); | |
104 | analog.num_samples = 1; | |
105 | analog.data = &f; | |
106 | meaning.channels = g_slist_append(NULL, &ch); | |
107 | ||
108 | for (i = 0; i < ARRAY_SIZE(v); i++) { | |
109 | fout = 19; | |
110 | f = v[i]; | |
111 | ret = sr_analog_to_float(&analog, &fout); | |
112 | fail_unless(ret == SR_OK, "sr_analog_to_float() failed: %d.", ret); | |
113 | fail_unless(fabs(f - fout) <= 0.001, "%f != %f", f, fout); | |
114 | } | |
115 | } | |
116 | END_TEST | |
117 | ||
118 | START_TEST(test_analog_to_float_null) | |
119 | { | |
120 | int ret; | |
121 | float f, fout; | |
122 | struct sr_datafeed_analog analog; | |
123 | struct sr_analog_encoding encoding; | |
124 | struct sr_analog_meaning meaning; | |
125 | struct sr_analog_spec spec; | |
126 | ||
127 | f = G_PI; | |
128 | sr_analog_init_(&analog, &encoding, &meaning, &spec, 3); | |
129 | analog.num_samples = 1; | |
130 | analog.data = &f; | |
131 | ||
132 | ret = sr_analog_to_float(NULL, &fout); | |
133 | fail_unless(ret == SR_ERR_ARG); | |
134 | ret = sr_analog_to_float(&analog, NULL); | |
135 | fail_unless(ret == SR_ERR_ARG); | |
136 | ret = sr_analog_to_float(NULL, NULL); | |
137 | fail_unless(ret == SR_ERR_ARG); | |
138 | ||
139 | analog.data = NULL; | |
140 | ret = sr_analog_to_float(&analog, &fout); | |
141 | fail_unless(ret == SR_ERR_ARG); | |
142 | analog.data = &f; | |
143 | ||
144 | analog.meaning = NULL; | |
145 | ret = sr_analog_to_float(&analog, &fout); | |
146 | fail_unless(ret == SR_ERR_ARG); | |
147 | analog.meaning = &meaning; | |
148 | ||
149 | analog.encoding = NULL; | |
150 | ret = sr_analog_to_float(&analog, &fout); | |
151 | fail_unless(ret == SR_ERR_ARG); | |
152 | analog.encoding = &encoding; | |
153 | } | |
154 | END_TEST | |
155 | ||
6205515c GS |
156 | START_TEST(test_analog_to_float_conv) |
157 | { | |
158 | static const int with_diag = 0; | |
159 | ||
160 | struct { | |
161 | const char *desc; | |
162 | void *bytes; | |
163 | size_t nums, unit; | |
164 | int is_fp, is_sign, is_be; | |
165 | int scale, offset; | |
166 | float *want; | |
167 | } *item, items[] = { | |
168 | /* Test to cover multiple values in an array, odd numbers. */ | |
169 | { | |
170 | .desc = "float single input, native, value array", | |
171 | .bytes = (float[]){ -12.9, -333.999, 0, 3.14, 29.7, 9898.12, }, | |
172 | .nums = 6, .unit = sizeof(float), | |
173 | .is_fp = TRUE, .is_sign = FALSE, .is_be = host_be, | |
174 | .scale = 1, .offset = 0, | |
175 | .want = (float[]){ -12.9, -333.999, 0, 3.14, 29.7, 9898.12, }, | |
176 | }, | |
177 | /* Tests to cover floating point input data conversion. */ | |
178 | { | |
179 | .desc = "float single input, native", | |
180 | .bytes = (float[]){ 1.0, 2.0, 3.0, 4.0, }, | |
181 | .nums = 4, .unit = sizeof(float), | |
182 | .is_fp = TRUE, .is_sign = FALSE, .is_be = host_be, | |
183 | .scale = 1, .offset = 0, | |
184 | .want = (float[]){ 1.0, 2.0, 3.0, 4.0, }, | |
185 | }, | |
186 | { | |
187 | .desc = "float single input, big endian", | |
188 | .bytes = (float[]){ 1.0, 2.0, 3.0, 4.0, }, | |
189 | .nums = 4, .unit = sizeof(float), | |
190 | .is_fp = TRUE, .is_sign = FALSE, .is_be = TRUE, | |
191 | .scale = 1, .offset = 0, | |
192 | .want = (float[]){ 1.0, 2.0, 3.0, 4.0, }, | |
193 | }, | |
194 | { | |
195 | .desc = "float single input, little endian", | |
196 | .bytes = (float[]){ 1.0, 2.0, 3.0, 4.0, }, | |
197 | .nums = 4, .unit = sizeof(float), | |
198 | .is_fp = TRUE, .is_sign = FALSE, .is_be = FALSE, | |
199 | .scale = 1, .offset = 0, | |
200 | .want = (float[]){ 1.0, 2.0, 3.0, 4.0, }, | |
201 | }, | |
202 | { | |
203 | .desc = "float double input, native", | |
204 | .bytes = (double[]){ 1.0, 2.0, 3.0, 4.0, }, | |
205 | .nums = 4, .unit = sizeof(double), | |
206 | .is_fp = TRUE, .is_sign = FALSE, .is_be = host_be, | |
207 | .scale = 1, .offset = 0, | |
208 | .want = (float[]){ 1.0, 2.0, 3.0, 4.0, }, | |
209 | }, | |
210 | { | |
211 | .desc = "float half input, unsupported, fake bytes", | |
212 | .bytes = (uint16_t[]){ 0x1234, 0x5678, }, | |
213 | .nums = 2, .unit = sizeof(uint16_t), | |
214 | .is_fp = TRUE, .is_sign = FALSE, .is_be = host_be, | |
215 | .want = NULL, | |
216 | }, | |
217 | { | |
218 | .desc = "float quad input, unsupported, fake bytes", | |
219 | .bytes = (uint64_t[]){ 0x0, 0x0, }, | |
220 | .nums = 1, .unit = 2 * sizeof(uint64_t), | |
221 | .is_fp = TRUE, .is_sign = FALSE, .is_be = host_be, | |
222 | .want = NULL, | |
223 | }, | |
224 | /* Tests to cover integer input data conversion. */ | |
225 | { | |
226 | .desc = "int u8 input", | |
227 | .bytes = (uint8_t[]){ 1, 2, 3, 4, }, | |
228 | .nums = 4, .unit = sizeof(uint8_t), | |
229 | .is_fp = FALSE, .is_sign = FALSE, .is_be = host_be, | |
230 | .scale = 1, .offset = 0, | |
231 | .want = (float[]){ 1.0, 2.0, 3.0, 4.0, }, | |
232 | }, | |
233 | { | |
234 | .desc = "int i8 input", | |
235 | .bytes = (int8_t[]){ -1, 2, -3, 4, }, | |
236 | .nums = 4, .unit = sizeof(int8_t), | |
237 | .is_fp = FALSE, .is_sign = TRUE, .is_be = host_be, | |
238 | .scale = 1, .offset = 0, | |
239 | .want = (float[]){ -1.0, 2.0, -3.0, 4.0, }, | |
240 | }, | |
241 | { | |
242 | .desc = "int u16 input, big endian", | |
243 | .bytes = (uint16_t[]){ 1, 2, 3, 4, }, | |
244 | .nums = 4, .unit = sizeof(uint16_t), | |
245 | .is_fp = FALSE, .is_sign = FALSE, .is_be = TRUE, | |
246 | .scale = 1, .offset = 0, | |
247 | .want = (float[]){ 1.0, 2.0, 3.0, 4.0, }, | |
248 | }, | |
249 | { | |
250 | .desc = "int u16 input, little endian", | |
251 | .bytes = (uint16_t[]){ 1, 2, 3, 4, }, | |
252 | .nums = 4, .unit = sizeof(uint16_t), | |
253 | .is_fp = FALSE, .is_sign = FALSE, .is_be = FALSE, | |
254 | .scale = 1, .offset = 0, | |
255 | .want = (float[]){ 1.0, 2.0, 3.0, 4.0, }, | |
256 | }, | |
257 | { | |
258 | .desc = "int i16 input, big endian", | |
259 | .bytes = (int16_t[]){ 1, -2, 3, -4, }, | |
260 | .nums = 4, .unit = sizeof(int16_t), | |
261 | .is_fp = FALSE, .is_sign = TRUE, .is_be = TRUE, | |
262 | .scale = 1, .offset = 0, | |
263 | .want = (float[]){ 1.0, -2.0, 3.0, -4.0, }, | |
264 | }, | |
265 | { | |
266 | .desc = "int i16 input, little endian", | |
267 | .bytes = (int16_t[]){ 1, -2, 3, -4, }, | |
268 | .nums = 4, .unit = sizeof(int16_t), | |
269 | .is_fp = FALSE, .is_sign = TRUE, .is_be = FALSE, | |
270 | .scale = 1, .offset = 0, | |
271 | .want = (float[]){ 1.0, -2.0, 3.0, -4.0, }, | |
272 | }, | |
273 | { | |
274 | .desc = "int u32 input, big endian", | |
275 | .bytes = (uint32_t[]){ 1, 2, 3, 4, }, | |
276 | .nums = 4, .unit = sizeof(uint32_t), | |
277 | .is_fp = FALSE, .is_sign = FALSE, .is_be = TRUE, | |
278 | .scale = 1, .offset = 0, | |
279 | .want = (float[]){ 1.0, 2.0, 3.0, 4.0, }, | |
280 | }, | |
281 | { | |
282 | .desc = "int u32 input, little endian", | |
283 | .bytes = (uint32_t[]){ 1, 2, 3, 4, }, | |
284 | .nums = 4, .unit = sizeof(uint32_t), | |
285 | .is_fp = FALSE, .is_sign = FALSE, .is_be = FALSE, | |
286 | .scale = 1, .offset = 0, | |
287 | .want = (float[]){ 1.0, 2.0, 3.0, 4.0, }, | |
288 | }, | |
289 | { | |
290 | .desc = "int i32 input, big endian", | |
291 | .bytes = (int32_t[]){ 1, 2, -3, -4, }, | |
292 | .nums = 4, .unit = sizeof(int32_t), | |
293 | .is_fp = FALSE, .is_sign = TRUE, .is_be = TRUE, | |
294 | .scale = 1, .offset = 0, | |
295 | .want = (float[]){ 1.0, 2.0, -3.0, -4.0, }, | |
296 | }, | |
297 | { | |
298 | .desc = "int i32 input, little endian", | |
299 | .bytes = (int32_t[]){ 1, 2, -3, -4, }, | |
300 | .nums = 4, .unit = sizeof(int32_t), | |
301 | .is_fp = FALSE, .is_sign = TRUE, .is_be = FALSE, | |
302 | .scale = 1, .offset = 0, | |
303 | .want = (float[]){ 1.0, 2.0, -3.0, -4.0, }, | |
304 | }, | |
305 | { | |
306 | .desc = "int u64 input, unsupported", | |
307 | .bytes = (uint64_t[]){ 1, 2, 3, 4, }, | |
308 | .nums = 4, .unit = sizeof(uint64_t), | |
309 | .is_fp = FALSE, .is_sign = FALSE, .is_be = TRUE, | |
310 | .want = NULL, | |
311 | }, | |
312 | /* Tests to cover scale/offset calculation. */ | |
313 | { | |
314 | .desc = "float single input, scale + offset", | |
315 | .bytes = (float[]){ 1.0, 2.0, 3.0, 4.0, }, | |
316 | .nums = 4, .unit = sizeof(float), | |
317 | .is_fp = TRUE, .is_sign = FALSE, .is_be = host_be, | |
318 | .scale = 3, .offset = 2, | |
319 | .want = (float[]){ 5.0, 8.0, 11.0, 14.0, }, | |
320 | }, | |
321 | { | |
322 | .desc = "int u8 input, scale + offset", | |
323 | .bytes = (uint8_t[]){ 1, 2, 3, 4, }, | |
324 | .nums = 4, .unit = sizeof(uint8_t), | |
325 | .is_fp = FALSE, .is_sign = FALSE, .is_be = TRUE, | |
326 | .scale = 3, .offset = 2, | |
327 | .want = (float[]){ 5.0, 8.0, 11.0, 14.0, }, | |
328 | }, | |
329 | }; | |
330 | const size_t max_floats = 6; | |
331 | struct sr_channel ch = { | |
332 | .index = 0, | |
333 | .enabled = TRUE, | |
334 | .type = SR_CHANNEL_LOGIC, | |
335 | .name = "input", | |
336 | }; | |
337 | ||
338 | size_t item_idx; | |
339 | char item_text[32]; | |
340 | struct sr_datafeed_analog analog; | |
341 | struct sr_analog_encoding encoding; | |
342 | struct sr_analog_meaning meaning; | |
343 | struct sr_analog_spec spec; | |
344 | size_t byte_count, value_idx; | |
345 | uint8_t f_in[max_floats * sizeof(double)], *byte_ptr; | |
346 | float f_out[max_floats]; | |
347 | int ret; | |
348 | float want, have; | |
349 | ||
350 | for (item_idx = 0; item_idx < ARRAY_SIZE(items); item_idx++) { | |
351 | item = &items[item_idx]; | |
352 | ||
353 | /* Construct "4x u32le" style test item identification. */ | |
354 | snprintf(item_text, sizeof(item_text), "%zu: %zux %c%zu%s", | |
355 | item_idx, item->nums, | |
356 | item->is_fp ? 'f' : item->is_sign ? 'i' : 'u', | |
357 | item->unit * 8, item->is_be ? "be" : "le"); | |
358 | if (with_diag) { | |
359 | fprintf(stderr, "%s -- %s", item_text, item->desc); | |
360 | fflush(stderr); | |
361 | } | |
362 | ||
363 | /* Copy input data bytes, optionally adjust endianess. */ | |
364 | byte_count = item->nums * item->unit; | |
365 | memcpy(f_in, item->bytes, byte_count); | |
366 | if (item->is_be != host_be) { | |
367 | byte_ptr = &f_in[0]; | |
368 | for (value_idx = 0; value_idx < item->nums; value_idx++) { | |
369 | swap_bytes(byte_ptr, item->unit); | |
370 | byte_ptr += item->unit; | |
371 | } | |
372 | } | |
373 | if (with_diag) { | |
374 | fprintf(stderr, " -- bytes:"); | |
375 | for (value_idx = 0; value_idx < byte_count; value_idx++) | |
376 | fprintf(stderr, " %02x", f_in[value_idx]); | |
377 | fflush(stderr); | |
378 | } | |
379 | ||
380 | /* Setup the analog feed description. */ | |
381 | sr_analog_init_(&analog, &encoding, &meaning, &spec, 3); | |
382 | analog.num_samples = item->nums; | |
383 | analog.data = &f_in[0]; | |
384 | encoding.unitsize = item->unit; | |
385 | encoding.is_float = item->is_fp; | |
386 | encoding.is_signed = item->is_sign; | |
387 | encoding.is_bigendian = item->is_be; | |
388 | encoding.scale.p = item->scale ? item->scale : 1; | |
389 | encoding.offset.p = item->offset; | |
390 | meaning.channels = g_slist_append(NULL, &ch); | |
391 | ||
392 | /* Convert to an array of single precision float values. */ | |
393 | ret = sr_analog_to_float(&analog, &f_out[0]); | |
394 | if (!item->want) { | |
395 | fail_if(ret == SR_OK, | |
396 | "%s: sr_analog_to_float() passed", item_text); | |
397 | if (with_diag) { | |
398 | fprintf(stderr, " -- expected fail, OK\n"); | |
399 | fflush(stderr); | |
400 | } | |
401 | continue; | |
402 | } | |
403 | fail_unless(ret == SR_OK, | |
404 | "%s: sr_analog_to_float() failed: %d", item_text, ret); | |
405 | if (with_diag) { | |
406 | fprintf(stderr, " -- float:"); | |
407 | for (value_idx = 0; value_idx < item->nums; value_idx++) | |
408 | fprintf(stderr, " %f", f_out[value_idx]); | |
409 | fprintf(stderr, "\n"); | |
410 | fflush(stderr); | |
411 | } | |
412 | ||
413 | /* | |
414 | * Compare result data to the expectation. No tolerance | |
415 | * is required here due to the input set's values. This | |
416 | * test concentrates on endianess / data type / bit count | |
417 | * conversion and simple scale/offset calculation, neither | |
418 | * on precision nor rounding nor truncation. | |
419 | */ | |
420 | for (value_idx = 0; value_idx < item->nums; value_idx++) { | |
421 | want = item->want[value_idx]; | |
422 | have = f_out[value_idx]; | |
423 | fail_unless(want == have, | |
424 | "%s: input %f != output %f", | |
425 | item_text, want, have); | |
426 | } | |
427 | } | |
428 | } | |
429 | END_TEST | |
430 | ||
962172e4 AJ |
431 | START_TEST(test_analog_si_prefix) |
432 | { | |
433 | struct { | |
434 | float input_value; | |
435 | int input_digits; | |
436 | float output_value; | |
437 | int output_digits; | |
438 | const char *output_si_prefix; | |
439 | } v[] = { | |
440 | { 12.0 , 0, 12.0 , 0, "" }, | |
441 | { 12.0 , 1, 12.0 , 1, "" }, | |
442 | { 12.0 , -1, 0.012, 2, "k" }, | |
443 | { 1024.0 , 0, 1.024, 3, "k" }, | |
444 | { 1024.0 , -1, 1.024, 2, "k" }, | |
445 | { 1024.0 , -3, 1.024, 0, "k" }, | |
446 | { 12.0e5 , 0, 1.2, 6, "M" }, | |
447 | { 0.123456, 0, 0.123456, 0, "" }, | |
448 | { 0.123456, 1, 0.123456, 1, "" }, | |
449 | { 0.123456, 2, 0.123456, 2, "" }, | |
450 | { 0.123456, 3, 123.456, 0, "m" }, | |
451 | { 0.123456, 4, 123.456, 1, "m" }, | |
452 | { 0.123456, 5, 123.456, 2, "m" }, | |
453 | { 0.123456, 6, 123.456, 3, "m" }, | |
454 | { 0.123456, 7, 123.456, 4, "m" }, | |
455 | { 0.0123 , 4, 12.3, 1, "m" }, | |
456 | { 0.00123 , 5, 1.23, 2, "m" }, | |
457 | { 0.000123, 4, 0.123, 1, "m" }, | |
458 | { 0.000123, 5, 0.123, 2, "m" }, | |
459 | { 0.000123, 6, 123.0, 0, "µ" }, | |
460 | { 0.000123, 7, 123.0, 1, "µ" }, | |
461 | }; | |
462 | ||
463 | for (unsigned int i = 0; i < ARRAY_SIZE(v); i++) { | |
464 | float value = v[i].input_value; | |
465 | int digits = v[i].input_digits; | |
466 | const char *si_prefix = sr_analog_si_prefix(&value, &digits); | |
467 | ||
468 | fail_unless(fabs(value - v[i].output_value) <= 0.00001, | |
469 | "sr_analog_si_prefix() unexpected output value %f (i=%d).", | |
470 | value , i); | |
471 | fail_unless(digits == v[i].output_digits, | |
472 | "sr_analog_si_prefix() unexpected output digits %d (i=%d).", | |
473 | digits, i); | |
474 | fail_unless(!strcmp(si_prefix, v[i].output_si_prefix), | |
475 | "sr_analog_si_prefix() unexpected output prefix \"%s\" (i=%d).", | |
476 | si_prefix, i); | |
477 | } | |
478 | } | |
479 | END_TEST | |
480 | ||
481 | START_TEST(test_analog_si_prefix_null) | |
482 | { | |
483 | float value = 1.23; | |
484 | int digits = 1; | |
485 | const char *si_prefix; | |
486 | ||
487 | si_prefix = sr_analog_si_prefix(NULL, &digits); | |
488 | fail_unless(!strcmp(si_prefix, "")); | |
489 | si_prefix = sr_analog_si_prefix(&value, NULL); | |
490 | fail_unless(!strcmp(si_prefix, "")); | |
491 | si_prefix = sr_analog_si_prefix(NULL, NULL); | |
492 | fail_unless(!strcmp(si_prefix, "")); | |
493 | } | |
494 | END_TEST | |
495 | ||
6b71bf1b UH |
496 | START_TEST(test_analog_unit_to_string) |
497 | { | |
498 | int ret; | |
499 | unsigned int i; | |
500 | char *result; | |
501 | struct sr_datafeed_analog analog; | |
502 | struct sr_analog_encoding encoding; | |
503 | struct sr_analog_meaning meaning; | |
504 | struct sr_analog_spec spec; | |
32054b09 UH |
505 | const int u[] = {SR_UNIT_VOLT, SR_UNIT_AMPERE, SR_UNIT_CELSIUS}; |
506 | const int f[] = {SR_MQFLAG_RMS, 0, 0}; | |
507 | const char *r[] = {"V RMS", "A", "°C"}; | |
6b71bf1b UH |
508 | |
509 | sr_analog_init_(&analog, &encoding, &meaning, &spec, 3); | |
510 | ||
72cb20ed | 511 | for (i = 0; i < ARRAY_SIZE(r); i++) { |
32054b09 UH |
512 | meaning.unit = u[i]; |
513 | meaning.mqflags = f[i]; | |
6b71bf1b UH |
514 | ret = sr_analog_unit_to_string(&analog, &result); |
515 | fail_unless(ret == SR_OK); | |
516 | fail_unless(result != NULL); | |
517 | fail_unless(!strcmp(result, r[i]), "%s != %s", result, r[i]); | |
518 | g_free(result); | |
519 | } | |
520 | } | |
521 | END_TEST | |
522 | ||
523 | START_TEST(test_analog_unit_to_string_null) | |
524 | { | |
525 | int ret; | |
526 | char *result; | |
527 | struct sr_datafeed_analog analog; | |
528 | struct sr_analog_encoding encoding; | |
529 | struct sr_analog_meaning meaning; | |
530 | struct sr_analog_spec spec; | |
531 | ||
532 | sr_analog_init_(&analog, &encoding, &meaning, &spec, 3); | |
533 | ||
534 | meaning.unit = SR_UNIT_VOLT; | |
535 | meaning.mqflags = SR_MQFLAG_RMS; | |
536 | ||
537 | ret = sr_analog_unit_to_string(NULL, &result); | |
538 | fail_unless(ret == SR_ERR_ARG); | |
539 | ret = sr_analog_unit_to_string(&analog, NULL); | |
540 | fail_unless(ret == SR_ERR_ARG); | |
541 | ret = sr_analog_unit_to_string(NULL, NULL); | |
542 | fail_unless(ret == SR_ERR_ARG); | |
543 | ||
544 | analog.meaning = NULL; | |
545 | ret = sr_analog_unit_to_string(&analog, &result); | |
546 | fail_unless(ret == SR_ERR_ARG); | |
547 | } | |
548 | END_TEST | |
549 | ||
550 | START_TEST(test_set_rational) | |
551 | { | |
552 | unsigned int i; | |
553 | struct sr_rational r; | |
554 | const int64_t p[] = {0, 1, -5, INT64_MAX}; | |
555 | const uint64_t q[] = {0, 2, 7, UINT64_MAX}; | |
556 | ||
557 | for (i = 0; i < ARRAY_SIZE(p); i++) { | |
558 | sr_rational_set(&r, p[i], q[i]); | |
559 | fail_unless(r.p == p[i] && r.q == q[i]); | |
560 | } | |
561 | } | |
562 | END_TEST | |
563 | ||
564 | START_TEST(test_set_rational_null) | |
565 | { | |
566 | sr_rational_set(NULL, 5, 7); | |
567 | } | |
568 | END_TEST | |
569 | ||
bdba3626 SB |
570 | START_TEST(test_cmp_rational) |
571 | { | |
572 | const struct sr_rational r[] = { { 1, 1 }, | |
573 | { 2, 2 }, | |
574 | { 1000, 1000 }, | |
575 | { INT64_MAX, INT64_MAX }, | |
576 | { 1, 4 }, | |
577 | { 2, 8 }, | |
578 | { INT64_MAX, UINT64_MAX }, | |
579 | { INT64_MIN, UINT64_MAX }, | |
580 | }; | |
581 | ||
582 | fail_unless(sr_rational_eq(&r[0], &r[0]) == 1); | |
583 | fail_unless(sr_rational_eq(&r[0], &r[1]) == 1); | |
584 | fail_unless(sr_rational_eq(&r[1], &r[2]) == 1); | |
585 | fail_unless(sr_rational_eq(&r[2], &r[3]) == 1); | |
586 | fail_unless(sr_rational_eq(&r[3], &r[3]) == 1); | |
587 | ||
588 | fail_unless(sr_rational_eq(&r[4], &r[4]) == 1); | |
589 | fail_unless(sr_rational_eq(&r[4], &r[5]) == 1); | |
590 | fail_unless(sr_rational_eq(&r[5], &r[5]) == 1); | |
591 | ||
592 | fail_unless(sr_rational_eq(&r[6], &r[6]) == 1); | |
593 | fail_unless(sr_rational_eq(&r[7], &r[7]) == 1); | |
594 | ||
595 | fail_unless(sr_rational_eq(&r[1], &r[4]) == 0); | |
596 | } | |
597 | END_TEST | |
598 | ||
ee1b6054 SB |
599 | START_TEST(test_mult_rational) |
600 | { | |
11cd0ff1 | 601 | static const struct sr_rational r[][3] = { |
ee1b6054 SB |
602 | /* a * b = c */ |
603 | { { 1, 1 }, { 1, 1 }, { 1, 1 }}, | |
604 | { { 2, 1 }, { 3, 1 }, { 6, 1 }}, | |
605 | { { 1, 2 }, { 2, 1 }, { 1, 1 }}, | |
606 | /* Test negative numbers */ | |
607 | { { -1, 2 }, { 2, 1 }, { -1, 1 }}, | |
608 | { { -1, 2 }, { -2, 1 }, { 1, 1 }}, | |
609 | { { -(1ll<<20), (1ll<<10) }, { -(1ll<<20), 1 }, { (1ll<<30), 1 }}, | |
610 | /* Test reduction */ | |
611 | { { INT32_MAX, (1ll<<12) }, { (1<<2), 1 }, { INT32_MAX, (1ll<<10) }}, | |
612 | { { INT64_MAX, (1ll<<63) }, { (1<<3), 1 }, { INT64_MAX, (1ll<<60) }}, | |
613 | /* Test large numbers */ | |
614 | { { (1ll<<40), (1ll<<10) }, { (1ll<<30), 1 }, { (1ll<<60), 1 }}, | |
615 | { { -(1ll<<40), (1ll<<10) }, { -(1ll<<30), 1 }, { (1ll<<60), 1 }}, | |
616 | ||
617 | { { 1000, 1 }, { 8000, 1 }, { 8000000, 1 }}, | |
618 | { { 10000, 1 }, { 80000, 1 }, { 800000000, 1 }}, | |
619 | { { 10000*3, 4 }, { 80000*3, 1 }, { 200000000*9, 1 }}, | |
620 | { { 1, 1000 }, { 1, 8000 }, { 1, 8000000 }}, | |
621 | { { 1, 10000 }, { 1, 80000 }, { 1, 800000000 }}, | |
622 | { { 4, 10000*3 }, { 1, 80000*3 }, { 1, 200000000*9 }}, | |
623 | ||
624 | { { -10000*3, 4 }, { 80000*3, 1 }, { -200000000*9, 1 }}, | |
625 | { { 10000*3, 4 }, { -80000*3, 1 }, { -200000000*9, 1 }}, | |
626 | }; | |
627 | ||
11cd0ff1 GS |
628 | size_t i; |
629 | struct sr_rational res; | |
630 | int rc; | |
ee1b6054 | 631 | |
11cd0ff1 GS |
632 | for (i = 0; i < ARRAY_SIZE(r); i++) { |
633 | rc = sr_rational_mult(&res, &r[i][0], &r[i][1]); | |
ee1b6054 SB |
634 | fail_unless(rc == SR_OK); |
635 | fail_unless(sr_rational_eq(&res, &r[i][2]) == 1, | |
11cd0ff1 | 636 | "sr_rational_mult() failed: [%zu] %" PRIi64 "/%" PRIu64 " != %" PRIi64 "/%" PRIu64 ".", |
ee1b6054 SB |
637 | i, res.p, res.q, r[i][2].p, r[i][2].q); |
638 | } | |
639 | } | |
640 | END_TEST | |
641 | ||
17d5a11c SB |
642 | START_TEST(test_div_rational) |
643 | { | |
11cd0ff1 | 644 | static const struct sr_rational r[][3] = { |
17d5a11c SB |
645 | /* a * b = c */ |
646 | { { 1, 1 }, { 1, 1 }, { 1, 1 }}, | |
647 | { { 2, 1 }, { 1, 3 }, { 6, 1 }}, | |
648 | { { 1, 2 }, { 1, 2 }, { 1, 1 }}, | |
649 | /* Test negative numbers */ | |
650 | { { -1, 2 }, { 1, 2 }, { -1, 1 }}, | |
651 | { { -1, 2 }, { -1, 2 }, { 1, 1 }}, | |
652 | { { -(1ll<<20), (1ll<<10) }, { -1, (1ll<<20) }, { (1ll<<30), 1 }}, | |
653 | /* Test reduction */ | |
654 | { { INT32_MAX, (1ll<<12) }, { 1, (1<<2) }, { INT32_MAX, (1ll<<10) }}, | |
655 | { { INT64_MAX, (1ll<<63) }, { 1, (1<<3) }, { INT64_MAX, (1ll<<60) }}, | |
656 | /* Test large numbers */ | |
657 | { { (1ll<<40), (1ll<<10) }, { 1, (1ll<<30) }, { (1ll<<60), 1 }}, | |
658 | { { -(1ll<<40), (1ll<<10) }, { -1, (1ll<<30) }, { (1ll<<60), 1 }}, | |
659 | ||
660 | { { 10000*3, 4 }, { 1, 80000*3 }, { 200000000*9, 1 }}, | |
661 | { { 4, 10000*3 }, { 80000*3, 1 }, { 1, 200000000*9 }}, | |
662 | ||
663 | { { -10000*3, 4 }, { 1, 80000*3 }, { -200000000*9, 1 }}, | |
664 | { { 10000*3, 4 }, { -1, 80000*3 }, { -200000000*9, 1 }}, | |
665 | }; | |
666 | ||
11cd0ff1 GS |
667 | size_t i; |
668 | struct sr_rational res; | |
669 | int rc; | |
17d5a11c | 670 | |
11cd0ff1 GS |
671 | for (i = 0; i < ARRAY_SIZE(r); i++) { |
672 | rc = sr_rational_div(&res, &r[i][0], &r[i][1]); | |
17d5a11c SB |
673 | fail_unless(rc == SR_OK); |
674 | fail_unless(sr_rational_eq(&res, &r[i][2]) == 1, | |
11cd0ff1 | 675 | "sr_rational_mult() failed: [%zu] %" PRIi64 "/%" PRIu64 " != %" PRIi64 "/%" PRIu64 ".", |
17d5a11c SB |
676 | i, res.p, res.q, r[i][2].p, r[i][2].q); |
677 | } | |
678 | ||
679 | { | |
11cd0ff1 | 680 | rc = sr_rational_div(&res, &r[0][0], &((struct sr_rational){ 0, 5 })); |
17d5a11c SB |
681 | |
682 | fail_unless(rc == SR_ERR_ARG); | |
683 | } | |
684 | } | |
685 | END_TEST | |
686 | ||
6b71bf1b UH |
687 | Suite *suite_analog(void) |
688 | { | |
689 | Suite *s; | |
690 | TCase *tc; | |
691 | ||
6205515c GS |
692 | get_host_endianess(); |
693 | ||
6b71bf1b UH |
694 | s = suite_create("analog"); |
695 | ||
696 | tc = tcase_create("analog_to_float"); | |
697 | tcase_add_test(tc, test_analog_to_float); | |
698 | tcase_add_test(tc, test_analog_to_float_null); | |
6205515c GS |
699 | tcase_add_test(tc, test_analog_to_float_conv); |
700 | suite_add_tcase(s, tc); | |
701 | ||
702 | tc = tcase_create("analog_si_unit"); | |
962172e4 AJ |
703 | tcase_add_test(tc, test_analog_si_prefix); |
704 | tcase_add_test(tc, test_analog_si_prefix_null); | |
6b71bf1b UH |
705 | tcase_add_test(tc, test_analog_unit_to_string); |
706 | tcase_add_test(tc, test_analog_unit_to_string_null); | |
6205515c GS |
707 | suite_add_tcase(s, tc); |
708 | ||
709 | tc = tcase_create("analog_rational"); | |
6b71bf1b UH |
710 | tcase_add_test(tc, test_set_rational); |
711 | tcase_add_test(tc, test_set_rational_null); | |
bdba3626 | 712 | tcase_add_test(tc, test_cmp_rational); |
ee1b6054 | 713 | tcase_add_test(tc, test_mult_rational); |
17d5a11c | 714 | tcase_add_test(tc, test_div_rational); |
6b71bf1b UH |
715 | suite_add_tcase(s, tc); |
716 | ||
717 | return s; | |
718 | } |