Add simple test for dds_time

Signed-off-by: Firas Sahli <firas.sahli@adlinktech.com>

src/core/ddsc/tests/time.c

@@ -0,0 +1,17 @@
+#include <criterion/criterion.h>
+#include <criterion/logging.h>
+
+#include "ddsc/dds.h"
+
+Test(ddsc_time, request_time)
+{
+    dds_time_t now, then;
+    dds_duration_t pause = 1 * DDS_NSECS_IN_SEC;
+
+    now = dds_time();
+    cr_assert_gt(now, 0);
+    /* Sleep for 1 second, every platform should (hopefully) support that */
+    dds_sleepfor(pause);
+    then = dds_time();
+    cr_assert_geq(then, now + pause);
+}