--- /dev/null
+/*
+ * 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
+
+#if 0
+START_TEST(test_analog_float_to_string)
+{
+ int ret;
+ unsigned int i;
+ char *result;
+ const char *r[] = {"3", "3.1", "3.14", "3.145", "3.1415", "3.15159"};
+
+ for (i = 0; i < ARRAY_SIZE(r); i++) {
+ ret = sr_analog_float_to_string(G_PI, i, &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
+#endif
+
+START_TEST(test_analog_float_to_string_null)
+{
+ int ret;
+
+ ret = sr_analog_float_to_string(0, 0, NULL);
+ fail_unless(ret == SR_ERR_ARG);
+}
+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);
+#if 0
+ tcase_add_test(tc, test_analog_float_to_string);
+#endif
+ tcase_add_test(tc, test_analog_float_to_string_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;
+}
projects / libsigrok.git / blobdiff