update test
diff --git a/test/test-sync-core.cc b/test/test-sync-core.cc
index 5db4eda..b76b0b4 100644
--- a/test/test-sync-core.cc
+++ b/test/test-sync-core.cc
@@ -97,7 +97,10 @@
BOOST_CHECK_EQUAL(result1.locator, loc2);
// simple simultaneous data generation
+ cout << "\n\n\n\n\n\n----------Simultaneous\n";
core1->updateLocalState(11);
+ // change the value here 100, 2000, 3000, 5000, each with different error (for 2000 and 3000 run at least 3 times)
+ usleep(6000);
core2->updateLocalState(12);
usleep(1000000);
BOOST_CHECK_EQUAL(result1.seq, 12);