sr_scpi_free(): Allow NULL as argument.

[libsigrok.git] / tests / strutil.c

diff --git a/tests/strutil.c b/tests/strutil.c
index 68e6117dfd3c946f0ff3e4cb241b3324217e8c31..a36b6a2d06a1fe39a133ceb8c1a1b76df9362246 100644 (file)
--- a/tests/strutil.c
+++ b/tests/strutil.c
@@ -14,12 +14,12 @@
  * 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>
 #include <check.h>
-#include "../include/libsigrok/libsigrok.h"
+#include <libsigrok/libsigrok.h>
 #include "lib.h"
 
 static void test_samplerate(uint64_t samplerate, const char *expected)
@@ -33,6 +33,29 @@ static void test_samplerate(uint64_t samplerate, const char *expected)
        g_free(s);
 }
 
+static void test_period(uint64_t v_p, uint64_t v_q, const char *expected)
+{
+       char *s;
+
+       s = sr_period_string(v_p, v_q);
+       fail_unless(s != NULL);
+       fail_unless(!strcmp(s, expected),
+                   "Invalid result for '%s': %s.", expected, s);
+       g_free(s);
+}
+
+static void test_rational(const char *input, struct sr_rational expected)
+{
+       int ret;
+       struct sr_rational rational;
+
+       ret = sr_parse_rational(input, &rational);
+       fail_unless(ret == SR_OK);
+       fail_unless((expected.p == rational.p) && (expected.q == rational.q),
+                   "Invalid result for '%s': %ld/%ld'.",
+                   input, rational.p, rational.q);
+}
+
 /*
  * Check various inputs for sr_samplerate_string():
  *
@@ -154,6 +177,78 @@ START_TEST(test_ghz)
 }
 END_TEST
 
+START_TEST(test_hz_period)
+{
+       test_period(1, 1, "1 s");
+       test_period(1, 5, "200 ms");
+       test_period(1, 72, "13.889 ms");
+       test_period(1, 388, "2.577 ms");
+       test_period(10, 1000, "10 ms");
+
+       /* Again, but now using SR_HZ(). */
+       test_period(1, SR_HZ(1), "1 s");
+       test_period(1, SR_HZ(5), "200 ms");
+       test_period(1, SR_HZ(72), "13.889 ms");
+       test_period(1, SR_HZ(388), "2.577 ms");
+       test_period(10, SR_HZ(100), "100 ms");
+}
+END_TEST
+
+START_TEST(test_ghz_period)
+{
+       /* Note: Numbers > 2^32 need a ULL suffix. */
+       test_period(1, 1000000000, "1 ns");
+       test_period(1, 5000000000ULL, "200 ps");
+       test_period(1, 72000000000ULL, "13.889 ps");
+       test_period(1, 388000000000ULL, "2.577 ps");
+       test_period(10, 1000000000000, "10 ps");
+       test_period(200, 1000000000000ULL, "200 ps");
+
+       /* Again, but now using SR_GHZ(). */
+       test_period(1, SR_GHZ(1), "1 ns");
+       test_period(1, SR_GHZ(5), "200 ps");
+       test_period(1, SR_GHZ(72), "13.889 ps");
+       test_period(1, SR_GHZ(388), "2.577 ps");
+       test_period(10, SR_GHZ(1), "10 ns");
+       test_period(200, SR_GHZ(1000), "200 ps");
+}
+END_TEST
+
+START_TEST(test_integral)
+{
+       test_rational("1", (struct sr_rational){1, 1});
+       test_rational("2", (struct sr_rational){2, 1});
+       test_rational("10", (struct sr_rational){10, 1});
+       test_rational("-255", (struct sr_rational){-255, 1});
+}
+END_TEST
+
+START_TEST(test_fractional)
+{
+       test_rational("0.1", (struct sr_rational){1, 10});
+       test_rational("1.0", (struct sr_rational){10, 10});
+       test_rational("1.2", (struct sr_rational){12, 10});
+       test_rational("12.34", (struct sr_rational){1234, 100});
+       test_rational("-12.34", (struct sr_rational){-1234, 100});
+       test_rational("10.00", (struct sr_rational){1000, 100});
+}
+END_TEST
+
+START_TEST(test_exponent)
+{
+       test_rational("1e0", (struct sr_rational){1, 1});
+       test_rational("1E0", (struct sr_rational){1, 1});
+       test_rational("1E1", (struct sr_rational){10, 1});
+       test_rational("1e-1", (struct sr_rational){1, 10});
+       test_rational("-1.234e-0", (struct sr_rational){-1234, 1000});
+       test_rational("-1.234e3", (struct sr_rational){-1234, 1});
+       test_rational("-1.234e-3", (struct sr_rational){-1234, 1000000});
+       test_rational("0.001e3", (struct sr_rational){1, 1});
+       test_rational("0.001e0", (struct sr_rational){1, 1000});
+       test_rational("0.001e-3", (struct sr_rational){1, 1000000});
+}
+END_TEST
+
 Suite *suite_strutil(void)
 {
        Suite *s;
@@ -167,6 +262,11 @@ Suite *suite_strutil(void)
        tcase_add_test(tc, test_khz);
        tcase_add_test(tc, test_mhz);
        tcase_add_test(tc, test_ghz);
+       tcase_add_test(tc, test_hz_period);
+       tcase_add_test(tc, test_ghz_period);
+       tcase_add_test(tc, test_integral);
+       tcase_add_test(tc, test_fractional);
+       tcase_add_test(tc, test_exponent);
        suite_add_tcase(s, tc);
 
        return s;