test: add privilege test cases

tests/script/jenkins/basic.txt

@@ -6,6 +6,8 @@
 ./test.sh -f tsim/user/pass_alter.sim
 ./test.sh -f tsim/user/pass_len.sim
 ./test.sh -f tsim/user/user_len.sim
+./test.sh -f tsim/user/privilege1.sim
+./test.sh -f tsim/user/privilege2.sim
 
 # ---- db
 ./test.sh -f tsim/db/create_all_options.sim

tests/script/tsim/user/privilege2.sim

@@ -0,0 +1,38 @@
+system sh/stop_dnodes.sh
+system sh/deploy.sh -n dnode1 -i 1
+system sh/exec.sh -n dnode1 -s start
+sql connect
+
+print =============== show users
+sql create database d1 vgroups 1;
+sql create database d2 vgroups 1;
+sql create database d3 vgroups 1;
+sql show databases
+if $rows != 5 then 
+  return -1
+endi
+
+print =============== create users
+sql create user user1 PASS 'taosdata'
+sql create user user2 PASS 'taosdata'
+sql show users
+if $rows != 3 then 
+  return -1
+endi
+
+sql GRANT read ON d1.* to user1;
+sql GRANT write ON d2.* to user1;
+
+print =============== re connect
+sql close
+sleep 2500
+print user user1 login
+sql connect user1
+
+sql_error drop database d1;
+sql_error drop database d2;
+
+sql_error create stable d1.st (ts timestamp, i int) tags (j int)
+sql create stable d2.st (ts timestamp, i int) tags (j int)
+
+system sh/exec.sh -n dnode1 -s stop -x SIGINT