analog: Add equality check for sr_rational

[libsigrok.git] / tests / analog.c

diff --git a/tests/analog.c b/tests/analog.c
index 13eb107cd1b0ce5daf1c8fb6f198f023c72d2b70..64e355ebb884f3845d51f2085b9f7a9b6118d7f0 100644 (file)
--- a/tests/analog.c
+++ b/tests/analog.c
@@ -196,6 +196,35 @@ START_TEST(test_set_rational_null)
 }
 END_TEST
 
+START_TEST(test_cmp_rational)
+{
+       const struct sr_rational r[] = { { 1, 1 },
+               { 2, 2 },
+               { 1000, 1000 },
+               { INT64_MAX, INT64_MAX },
+               { 1, 4 },
+               { 2, 8 },
+               { INT64_MAX, UINT64_MAX },
+               { INT64_MIN, UINT64_MAX },
+       };
+
+       fail_unless(sr_rational_eq(&r[0], &r[0]) == 1);
+       fail_unless(sr_rational_eq(&r[0], &r[1]) == 1);
+       fail_unless(sr_rational_eq(&r[1], &r[2]) == 1);
+       fail_unless(sr_rational_eq(&r[2], &r[3]) == 1);
+       fail_unless(sr_rational_eq(&r[3], &r[3]) == 1);
+
+       fail_unless(sr_rational_eq(&r[4], &r[4]) == 1);
+       fail_unless(sr_rational_eq(&r[4], &r[5]) == 1);
+       fail_unless(sr_rational_eq(&r[5], &r[5]) == 1);
+
+       fail_unless(sr_rational_eq(&r[6], &r[6]) == 1);
+       fail_unless(sr_rational_eq(&r[7], &r[7]) == 1);
+
+       fail_unless(sr_rational_eq(&r[1], &r[4]) == 0);
+}
+END_TEST
+
 Suite *suite_analog(void)
 {
        Suite *s;
@@ -210,6 +239,7 @@ Suite *suite_analog(void)
        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);
        suite_add_tcase(s, tc);
 
        return s;