yifan-c commented on a change in pull request #1258:
URL: https://github.com/apache/cassandra/pull/1258#discussion_r733016519



##########
File path: 
test/unit/org/apache/cassandra/cql3/validation/miscellaneous/RoleSyntaxTest.java
##########
@@ -117,6 +117,10 @@ public void grantRevokePermissionsSyntaxTest() throws 
Throwable
         assertValidSyntax("REVOKE ALTER ON ROLE \"r1\" FROM 'r2'");
         assertValidSyntax("REVOKE ALTER ON ROLE $$r1$$ FROM $$ r '2' $$");
 
+        // grant/revoke multiple permissions in a single statement

Review comment:
       nit: consider simplifying the test like the following. It also covers 
more for multiple grant on RoleResource.
   
   ```java
           for (String r1 : Arrays.asList("r1", "'r1'", "\"r1\""...))
           {
               for (String r2 : Arrays.asList("r2", "'r2'", "\"r2\""...))
               {
                   // grant/revoke on RoleResource
                   assertValidSyntax(String.format("GRANT ALTER ON ROLE %s TO 
%s", r1, r2));
                   // grant/revoke multiple permissions in a single statement
                   assertValidSyntax(String.format("GRANT CREATE, ALTER ON ROLE 
%s TO %s", r1, r2));
                   assertValidSyntax(String.format("GRANT CREATE PERMISSION, 
ALTER PERMISSION ON ROLE %s TO %s", r1, r2));
               }
           }
   ```




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