* 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
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <config.h>
}
END_TEST
+START_TEST(test_analog_si_prefix)
+{
+ struct {
+ float input_value;
+ int input_digits;
+ float output_value;
+ int output_digits;
+ const char *output_si_prefix;
+ } v[] = {
+ { 12.0 , 0, 12.0 , 0, "" },
+ { 12.0 , 1, 12.0 , 1, "" },
+ { 12.0 , -1, 0.012, 2, "k" },
+ { 1024.0 , 0, 1.024, 3, "k" },
+ { 1024.0 , -1, 1.024, 2, "k" },
+ { 1024.0 , -3, 1.024, 0, "k" },
+ { 12.0e5 , 0, 1.2, 6, "M" },
+ { 0.123456, 0, 0.123456, 0, "" },
+ { 0.123456, 1, 0.123456, 1, "" },
+ { 0.123456, 2, 0.123456, 2, "" },
+ { 0.123456, 3, 123.456, 0, "m" },
+ { 0.123456, 4, 123.456, 1, "m" },
+ { 0.123456, 5, 123.456, 2, "m" },
+ { 0.123456, 6, 123.456, 3, "m" },
+ { 0.123456, 7, 123.456, 4, "m" },
+ { 0.0123 , 4, 12.3, 1, "m" },
+ { 0.00123 , 5, 1.23, 2, "m" },
+ { 0.000123, 4, 0.123, 1, "m" },
+ { 0.000123, 5, 0.123, 2, "m" },
+ { 0.000123, 6, 123.0, 0, "µ" },
+ { 0.000123, 7, 123.0, 1, "µ" },
+ };
+
+ for (unsigned int i = 0; i < ARRAY_SIZE(v); i++) {
+ float value = v[i].input_value;
+ int digits = v[i].input_digits;
+ const char *si_prefix = sr_analog_si_prefix(&value, &digits);
+
+ fail_unless(fabs(value - v[i].output_value) <= 0.00001,
+ "sr_analog_si_prefix() unexpected output value %f (i=%d).",
+ value , i);
+ fail_unless(digits == v[i].output_digits,
+ "sr_analog_si_prefix() unexpected output digits %d (i=%d).",
+ digits, i);
+ fail_unless(!strcmp(si_prefix, v[i].output_si_prefix),
+ "sr_analog_si_prefix() unexpected output prefix \"%s\" (i=%d).",
+ si_prefix, i);
+ }
+}
+END_TEST
+
+START_TEST(test_analog_si_prefix_null)
+{
+ float value = 1.23;
+ int digits = 1;
+ const char *si_prefix;
+
+ si_prefix = sr_analog_si_prefix(NULL, &digits);
+ fail_unless(!strcmp(si_prefix, ""));
+ si_prefix = sr_analog_si_prefix(&value, NULL);
+ fail_unless(!strcmp(si_prefix, ""));
+ si_prefix = sr_analog_si_prefix(NULL, NULL);
+ fail_unless(!strcmp(si_prefix, ""));
+}
+END_TEST
+
START_TEST(test_analog_unit_to_string)
{
int ret;
struct sr_analog_encoding encoding;
struct sr_analog_meaning meaning;
struct sr_analog_spec spec;
- const char *r[] = {" V RMS"};
+ const char *r[] = {"V RMS"};
sr_analog_init_(&analog, &encoding, &meaning, &spec, 3);
- for (i = -1; i < ARRAY_SIZE(r); i++) {
+ for (i = 0; i < ARRAY_SIZE(r); i++) {
meaning.unit = SR_UNIT_VOLT;
meaning.mqflags = SR_MQFLAG_RMS;
ret = sr_analog_unit_to_string(&analog, &result);
}
END_TEST
+START_TEST(test_div_rational)
+{
+ const struct sr_rational r[][3] = {
+ /* a * b = c */
+ { { 1, 1 }, { 1, 1 }, { 1, 1 }},
+ { { 2, 1 }, { 1, 3 }, { 6, 1 }},
+ { { 1, 2 }, { 1, 2 }, { 1, 1 }},
+ /* Test negative numbers */
+ { { -1, 2 }, { 1, 2 }, { -1, 1 }},
+ { { -1, 2 }, { -1, 2 }, { 1, 1 }},
+ { { -(1ll<<20), (1ll<<10) }, { -1, (1ll<<20) }, { (1ll<<30), 1 }},
+ /* Test reduction */
+ { { INT32_MAX, (1ll<<12) }, { 1, (1<<2) }, { INT32_MAX, (1ll<<10) }},
+ { { INT64_MAX, (1ll<<63) }, { 1, (1<<3) }, { INT64_MAX, (1ll<<60) }},
+ /* Test large numbers */
+ { { (1ll<<40), (1ll<<10) }, { 1, (1ll<<30) }, { (1ll<<60), 1 }},
+ { { -(1ll<<40), (1ll<<10) }, { -1, (1ll<<30) }, { (1ll<<60), 1 }},
+
+ { { 10000*3, 4 }, { 1, 80000*3 }, { 200000000*9, 1 }},
+ { { 4, 10000*3 }, { 80000*3, 1 }, { 1, 200000000*9 }},
+
+ { { -10000*3, 4 }, { 1, 80000*3 }, { -200000000*9, 1 }},
+ { { 10000*3, 4 }, { -1, 80000*3 }, { -200000000*9, 1 }},
+ };
+
+ for (unsigned i = 0; i < ARRAY_SIZE(r); i++) {
+ struct sr_rational res;
+
+ int rc = sr_rational_div(&res, &r[i][0], &r[i][1]);
+ fail_unless(rc == SR_OK);
+ fail_unless(sr_rational_eq(&res, &r[i][2]) == 1,
+ "sr_rational_mult() failed: [%d] %ld/%lu != %ld/%lu.",
+ i, res.p, res.q, r[i][2].p, r[i][2].q);
+ }
+
+ {
+ struct sr_rational res;
+ int rc = sr_rational_div(&res, &r[0][0], &((struct sr_rational){ 0, 5 }));
+
+ fail_unless(rc == SR_ERR_ARG);
+ }
+}
+END_TEST
+
Suite *suite_analog(void)
{
Suite *s;
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_si_prefix);
+ tcase_add_test(tc, test_analog_si_prefix_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);
tcase_add_test(tc, test_cmp_rational);
tcase_add_test(tc, test_mult_rational);
+ tcase_add_test(tc, test_div_rational);
suite_add_tcase(s, tc);
return s;
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