content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.apache.cassandra.db.guardrails;
  
  import org.junit.Test;
  
  import org.apache.cassandra.schema.SchemaConstants;
  import org.apache.cassandra.schema.SchemaKeyspaceTables;
  
  public class GuardrailGroupByTest extends GuardrailTester
  {
      private static final String query = String.format("SELECT * FROM %s.%s WHERE keyspace_name='%s' GROUP BY table_name",
                                                        SchemaConstants.SCHEMA_KEYSPACE_NAME,
                                                        SchemaKeyspaceTables.TABLES,
                                                        KEYSPACE);
  
      private void setGuardrail(boolean enabled)
      {
          Guardrails.instance.setGroupByEnabled(enabled);
      }
  
      @Test
      public void checkExplicitlyDisabled() throws Throwable
      {
          setGuardrail(false);
          assertFails(query, "GROUP BY functionality is not allowed");
      }
  
      @Test
      public void testExcludedUsers() throws Throwable
      {
          setGuardrail(false);
          testExcludedUsers(() -> query);
      }
  
      @Test
      public void checkEnabled() throws Throwable
      {
          setGuardrail(true);
          assertValid(query);
      }
  
      @Test
      public void checkView() throws Throwable
      {
          setGuardrail(false);
          createTable( "CREATE TABLE %s(pk int, ck int, v int, PRIMARY KEY(pk, ck))");
          String viewName = createView("CREATE MATERIALIZED VIEW %s AS " +
                                       "SELECT * FROM %s WHERE pk IS NOT null and ck IS NOT null " +
                                       "PRIMARY KEY(ck, pk)");
          String viewQuery = "SELECT * FROM " + viewName + " WHERE ck=0 GROUP BY pk";
          assertFails(viewQuery, "GROUP BY functionality is not allowed");
          testExcludedUsers(() -> viewQuery);
      }
  }
  