test: add test cases.

tests/script/tsim/stream/forcewindowclose.sim

@@ -4,7 +4,7 @@ system sh/exec.sh -n dnode1 -s start
 sleep 50
 sql connect
 
-print =============== create database
+print ========================================== create database
 sql create database test vgroups 2;
 sql select * from information_schema.ins_databases
 if $rows != 3 then
@@ -41,16 +41,16 @@ end_loop1:
 sql resume stream stream1
 sleep 5000
 
-sql select * from str_dst
+sql select sum(`count(*)`) from (select * from str_dst)
 
-if $rows != 4 then
-  print expect 4, actual: $rows
+if $data00 != 20 then
+  print expect 20, actual: $data00
   return -1
 endi
 
 sql drop database test
 
-print ============ test on micro precision db
+print ===================================== micro precision db test
 print ============ create db
 sql create database test vgroups 2 precision 'us';
 
@@ -83,10 +83,55 @@ end_loop:
 sql resume stream stream1
 sleep 5000
 
-sql select * from str_dst
+sql select sum(`count(*)`) from (select * from str_dst)
 
-if $rows != 4 then
-  print expect 4, actual: $rows
+if $data00 != 20 then
+  print expect 20, actual: $data00
+  return -1
+endi
+
+sql drop stream stream1
+sql drop table str_dst
+
+print ============================= too long watermark test
+sql drop table tu1;
+sql create table tu1 using st tags(1);
+sql create stream stream2 trigger force_window_close watermark 30s into str_dst as select _wstart, count(*), now() from st partition by tbname interval(5s);
+run tsim/stream/checkTaskStatus.sim
+
+$loop_count = 0
+
+loop2:
+sleep 500
+$loop_count = $loop_count + 1
+if $loop_count == 20 then
+  goto end_loop3
+endi
+
+sql insert into tu1 values(now, 1);
+goto loop2
+
+end_loop3:
+
+sql select count(*) from str_dst
+print =================rows: $data00
+
+if $data00 != 0 then
+  print expect 0, actual $data00
+  return -1
+endi
+
+sleep 35000
+
+sql select sum(`count(*)`) from (select * from str_dst)
+if $data00 != 19 then
+ print expect 19, actual: $data00
+ return -1
+endi
+
+sql select round(timediff(`now()`, `_wstart`)/1000000) from str_dst;
+if $data00 != 35.000000000 then
+  print expect 35.000000000 , actual $data00
   return -1
 endi