Add test cases for non-superusers

src/test/regress/expected/multi_cluster_management.out

@@ -180,6 +180,19 @@ SELECT * from citus_nodes where active = 'f';
  localhost |    57638 | worker | f
 (1 row)
 
+-- make sure non-superusers can access the view
+CREATE ROLE normaluser;
+SET ROLE normaluser;
+SELECT * FROM citus_nodes;
+ nodename  | nodeport |    role     | active
+---------------------------------------------------------------------
+ localhost |    57636 | coordinator | t
+ localhost |    57638 | worker      | f
+ localhost |    57637 | worker      | t
+(3 rows)
+
+SET ROLE postgres;
+DROP ROLE normaluser;
 -- add some shard placements to the cluster
 SET citus.shard_count TO 16;
 SET citus.shard_replication_factor TO 1;

src/test/regress/sql/multi_cluster_management.sql

@@ -72,6 +72,14 @@ SELECT * from citus_nodes where active = 't';
 -- get get inactive nodes
 SELECT * from citus_nodes where active = 'f';
 
+-- make sure non-superusers can access the view
+CREATE ROLE normaluser;
+SET ROLE normaluser;
+SELECT * FROM citus_nodes;
+
+SET ROLE postgres;
+DROP ROLE normaluser;
+
 -- add some shard placements to the cluster
 SET citus.shard_count TO 16;
 SET citus.shard_replication_factor TO 1;