diff --git a/tests/script/general/parser/function.sim b/tests/script/general/parser/function.sim
index 34e9844f711313d9f7c1c2380177bfc2c7aa4740..79c620f90d06f1131c45d1705dccd5e5b311585e 100644
--- a/tests/script/general/parser/function.sim
+++ b/tests/script/general/parser/function.sim
@@ -111,7 +111,7 @@ if $rows != 2 then
  return -1
 endi
 
-if $data00 != @15-08-18 00:06:00.00@ then
+if $data00 != @15-08-18 00:06:00.000@ then
   return -1
 endi
 
@@ -219,10 +219,15 @@ if $data02 != 6 then
   return -1
 endi
 
+sql select twa(k) from t1 where ts>'2015-8-18 00:00:00' and ts<'2015-8-18 00:00:1'
+if $rows != 0 then
+  return -1
+endi
+
 sql select twa(k),avg(k),count(1) from t1 where ts>='2015-8-18 00:00:00' and ts<='2015-8-18 00:30:00' interval(10m) order by ts asc
 sql select twa(k),avg(k),count(1) from t1 where ts>='2015-8-18 00:00:00' and ts<='2015-8-18 00:30:00' interval(10m) order by ts desc
 
 
-#todo add test case while column filte exists.
+#todo add test case while column filter exists.
 
-select count(*),TWA(k) from tm0 where ts>='1970-1-1 13:43:00' and ts<='1970-1-1 13:44:10' interval(9s)
+#sql select count(*),TWA(k) from tm0 where ts>='1970-1-1 13:43:00' and ts<='1970-1-1 13:44:10' interval(9s)
diff --git a/tests/script/general/parser/testSuite.sim b/tests/script/general/parser/testSuite.sim
index 8593400ce8c3d6ae5375993b0fcc1d7c36b86ca8..cea6d98679945b1d0e8d4dc82f3dd389b3d04a30 100644
--- a/tests/script/general/parser/testSuite.sim
+++ b/tests/script/general/parser/testSuite.sim
@@ -103,6 +103,8 @@ sleep 500
 run general/parser/timestamp.sim
 sleep 500
 run general/parser/sliding.sim
+sleep 500
+run general/parser/function.sim
 
 #sleep 500
 #run general/parser/repeatStream.sim