Expose a function that computes stamp units from msec.

(It turns out we can't just expose STAMP_TICKS_PER_SECOND, since
Apple doesn't have that.)

1 files changed, 7 insertions, 0 deletions

diff --git a/src/test/test_util.c b/src/test/test_util.c
index ce8567d9af..3dd2b51a3a 100644
--- a/src/test/test_util.c
+++ b/src/test/test_util.c
@@ -5907,6 +5907,13 @@ test_util_monotonic_time(void *arg)
   tt_u64_op(coarse_stamp_diff, OP_GE, 120);
   tt_u64_op(coarse_stamp_diff, OP_LE, 1200);
 
+  {
+    uint64_t units = monotime_msec_to_approx_coarse_stamp_units(5000);
+    uint64_t ms = monotime_coarse_stamp_units_to_approx_msec(units);
+    tt_int_op(ms, OP_GE, 4950);
+    tt_int_op(ms, OP_LT, 5050);
+  }
+
  done:
   ;
 }