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Add a few unit tests for the analog conversion functions.

This commit is contained in:
Uwe Hermann 2015-10-15 12:13:43 +02:00
parent dd13d47a9e
commit 6b71bf1ba0
4 changed files with 254 additions and 1 deletions
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3
Makefile.am
View File

@ -524,7 +524,8 @@ tests_main_SOURCES = \
tests/version.c \
tests/driver_all.c \
tests/device.c \
tests/trigger.c
tests/trigger.c \
tests/analog.c
tests_main_LDADD = libsigrok.la $(SR_EXTRA_LIBS) $(TESTS_LIBS)

248
tests/analog.c Normal file
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@ -0,0 +1,248 @@
/*
* 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;
}

3
tests/lib.h
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@ -23,6 +23,8 @@
#include <libsigrok/libsigrok.h>
#define ARRAY_SIZE(a) (sizeof(a) / sizeof((a)[0]))
extern struct sr_context *srtest_ctx;
void srtest_setup(void);
@ -51,5 +53,6 @@ Suite *suite_strutil(void);
Suite *suite_version(void);
Suite *suite_device(void);
Suite *suite_trigger(void);
Suite *suite_analog(void);
#endif

1
tests/main.c
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@ -45,6 +45,7 @@ int main(void)
srunner_add_suite(srunner, suite_version());
srunner_add_suite(srunner, suite_device());
srunner_add_suite(srunner, suite_trigger());
srunner_add_suite(srunner, suite_analog());
srunner_run_all(srunner, CK_VERBOSE);
ret = srunner_ntests_failed(srunner);