[libsigrok.git] / tests / analog.c

/*
 * This file is part of the libsigrok project.
 *
 * Copyright (C) 2015 Uwe Hermann <uwe@hermann-uwe.de>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
 */

#include <config.h>
#include <stdlib.h>
#include <math.h>
#include <check.h>
#include <libsigrok/libsigrok.h>
#include "lib.h"

static int sr_analog_init_(struct sr_datafeed_analog *analog,
		struct sr_analog_encoding *encoding,
		struct sr_analog_meaning *meaning,
		struct sr_analog_spec *spec,
		int digits)
{
	memset(analog, 0, sizeof(*analog));
	memset(encoding, 0, sizeof(*encoding));
	memset(meaning, 0, sizeof(*meaning));
	memset(spec, 0, sizeof(*spec));

	analog->encoding = encoding;
	analog->meaning = meaning;
	analog->spec = spec;

	encoding->unitsize = sizeof(float);
	encoding->is_float = TRUE;
#ifdef WORDS_BIGENDIAN
	encoding->is_bigendian = TRUE;
#else
	encoding->is_bigendian = FALSE;
#endif
	encoding->digits = digits;
	encoding->is_digits_decimal = TRUE;
	encoding->scale.p = 1;
	encoding->scale.q = 1;
	encoding->offset.p = 0;
	encoding->offset.q = 1;

	spec->spec_digits = digits;

	return SR_OK;
}

START_TEST(test_analog_to_float)
{
	int ret;
	unsigned int i;
	float f, fout;
	struct sr_channel ch;
	struct sr_datafeed_analog analog;
	struct sr_analog_encoding encoding;
	struct sr_analog_meaning meaning;
	struct sr_analog_spec spec;
	const float v[] = {-12.9, -333.999, 0, 3.1415, 29.7, 989898.121212};

	sr_analog_init_(&analog, &encoding, &meaning, &spec, 3);
	analog.num_samples = 1;
	analog.data = &f;
	meaning.channels = g_slist_append(NULL, &ch);

	for (i = 0; i < ARRAY_SIZE(v); i++) {
		fout = 19;
		f = v[i];
		ret = sr_analog_to_float(&analog, &fout);
		fail_unless(ret == SR_OK, "sr_analog_to_float() failed: %d.", ret);
		fail_unless(fabs(f - fout) <= 0.001, "%f != %f", f, fout);
	}
}
END_TEST

START_TEST(test_analog_to_float_null)
{
	int ret;
	float f, fout;
	struct sr_datafeed_analog analog;
	struct sr_analog_encoding encoding;
	struct sr_analog_meaning meaning;
	struct sr_analog_spec spec;

	f = G_PI;
	sr_analog_init_(&analog, &encoding, &meaning, &spec, 3);
	analog.num_samples = 1;
	analog.data = &f;

	ret = sr_analog_to_float(NULL, &fout);
	fail_unless(ret == SR_ERR_ARG);
	ret = sr_analog_to_float(&analog, NULL);
	fail_unless(ret == SR_ERR_ARG);
	ret = sr_analog_to_float(NULL, NULL);
	fail_unless(ret == SR_ERR_ARG);

	analog.data = NULL;
	ret = sr_analog_to_float(&analog, &fout);
	fail_unless(ret == SR_ERR_ARG);
	analog.data = &f;

	analog.meaning = NULL;
	ret = sr_analog_to_float(&analog, &fout);
	fail_unless(ret == SR_ERR_ARG);
	analog.meaning = &meaning;

	analog.encoding = NULL;
	ret = sr_analog_to_float(&analog, &fout);
	fail_unless(ret == SR_ERR_ARG);
	analog.encoding = &encoding;
}
END_TEST

START_TEST(test_analog_unit_to_string)
{
	int ret;
	unsigned int i;
	char *result;
	struct sr_datafeed_analog analog;
	struct sr_analog_encoding encoding;
	struct sr_analog_meaning meaning;
	struct sr_analog_spec spec;
	const char *r[] = {" V RMS"};

	sr_analog_init_(&analog, &encoding, &meaning, &spec, 3);

	for (i = -1; i < ARRAY_SIZE(r); i++) {
		meaning.unit = SR_UNIT_VOLT;
		meaning.mqflags = SR_MQFLAG_RMS;
		ret = sr_analog_unit_to_string(&analog, &result);
		fail_unless(ret == SR_OK);
		fail_unless(result != NULL);
		fail_unless(!strcmp(result, r[i]), "%s != %s", result, r[i]);
		g_free(result);
	}
}
END_TEST

START_TEST(test_analog_unit_to_string_null)
{
	int ret;
	char *result;
	struct sr_datafeed_analog analog;
	struct sr_analog_encoding encoding;
	struct sr_analog_meaning meaning;
	struct sr_analog_spec spec;

	sr_analog_init_(&analog, &encoding, &meaning, &spec, 3);

	meaning.unit = SR_UNIT_VOLT;
	meaning.mqflags = SR_MQFLAG_RMS;

	ret = sr_analog_unit_to_string(NULL, &result);
	fail_unless(ret == SR_ERR_ARG);
	ret = sr_analog_unit_to_string(&analog, NULL);
	fail_unless(ret == SR_ERR_ARG);
	ret = sr_analog_unit_to_string(NULL, NULL);
	fail_unless(ret == SR_ERR_ARG);

	analog.meaning = NULL;
	ret = sr_analog_unit_to_string(&analog, &result);
	fail_unless(ret == SR_ERR_ARG);
}
END_TEST

START_TEST(test_set_rational)
{
	unsigned int i;
	struct sr_rational r;
	const int64_t p[] = {0, 1, -5, INT64_MAX};
	const uint64_t q[] = {0, 2, 7, UINT64_MAX};

	for (i = 0; i < ARRAY_SIZE(p); i++) {
		sr_rational_set(&r, p[i], q[i]);
		fail_unless(r.p == p[i] && r.q == q[i]);
	}
}
END_TEST

START_TEST(test_set_rational_null)
{
	sr_rational_set(NULL, 5, 7);
}
END_TEST

Suite *suite_analog(void)
{
	Suite *s;
	TCase *tc;

	s = suite_create("analog");

	tc = tcase_create("analog_to_float");
	tcase_add_test(tc, test_analog_to_float);
	tcase_add_test(tc, test_analog_to_float_null);
	tcase_add_test(tc, test_analog_unit_to_string);
	tcase_add_test(tc, test_analog_unit_to_string_null);
	tcase_add_test(tc, test_set_rational);
	tcase_add_test(tc, test_set_rational_null);
	suite_add_tcase(s, tc);

	return s;
}
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
	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
199	Suite *suite_analog(void)
200	{
201	Suite *s;
202	TCase *tc;
203
204	s = suite_create("analog");
205
206	tc = tcase_create("analog_to_float");
207	tcase_add_test(tc, test_analog_to_float);
208	tcase_add_test(tc, test_analog_to_float_null);
6b71bf1b UH	209	tcase_add_test(tc, test_analog_unit_to_string);
	210	tcase_add_test(tc, test_analog_unit_to_string_null);
	211	tcase_add_test(tc, test_set_rational);
	212	tcase_add_test(tc, test_set_rational_null);
	213	suite_add_tcase(s, tc);
	214
	215	return s;
	216	}