tests/strutil: Check output of sr_period_string

diff --git a/tests/strutil.c b/tests/strutil.c
index ef8502bae4addf5f499e07036309cc3b5909ddbe..86f25f395d06caa54b84bd332ecdf8fe75b93d9d 100644 (file)
--- a/tests/strutil.c
+++ b/tests/strutil.c
@@ -33,6 +33,17 @@ static void test_samplerate(uint64_t samplerate, const char *expected)
        g_free(s);
 }
 
+static void test_period(uint64_t frequency, const char *expected)
+{
+       char *s;
+
+       s = sr_period_string(frequency);
+       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;
@@ -166,6 +177,38 @@ START_TEST(test_ghz)
 }
 END_TEST
 
+START_TEST(test_hz_period)
+{
+       test_period(1, "1000 ms");
+       test_period(5, "200 ms");
+       test_period(72, "13 ms");
+       test_period(388, "2 ms");
+
+       /* Again, but now using SR_HZ(). */
+       test_period(SR_HZ(1), "1000 ms");
+       test_period(SR_HZ(5), "200 ms");
+       test_period(SR_HZ(72), "13 ms");
+       test_period(SR_HZ(388), "2 ms");
+}
+END_TEST
+
+START_TEST(test_ghz_period)
+{
+       /* Note: Numbers > 2^32 need a ULL suffix. */
+
+       test_period(1000000000, "1000 ps");
+       test_period(5000000000ULL, "200 ps");
+       test_period(72000000000ULL, "13 ps");
+       test_period(388000000000ULL, "2 ps");
+
+       /* Again, but now using SR_GHZ(). */
+       test_period(SR_GHZ(1), "1000 ps");
+       test_period(SR_GHZ(5), "200 ps");
+       test_period(SR_GHZ(72), "13 ps");
+       test_period(SR_GHZ(388), "2 ps");
+}
+END_TEST
+
 START_TEST(test_integral)
 {
        test_rational("1", (struct sr_rational){1, 1});
@@ -214,6 +257,8 @@ 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);