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   * 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.distributed.test;
  
  import org.junit.Test;
  
  import org.apache.cassandra.distributed.Cluster;
  
  import static org.apache.cassandra.distributed.api.Feature.NETWORK;
  import static org.apache.cassandra.distributed.api.ConsistencyLevel.ALL;
  
  public class SchemaDisagreementTest extends TestBaseImpl
  {
      /**
       * If a node isn't aware of a column, but receives a mutation without that column, the write should succeed.
       */
      @Test
      public void writeWithInconsequentialSchemaDisagreement() throws Throwable
      {
          try (Cluster cluster = init(builder().withNodes(3).withConfig(config -> config.with(NETWORK)).start()))
          {
              cluster.schemaChange(withKeyspace("CREATE TABLE %s.tbl (pk int, ck int, v1 int, PRIMARY KEY (pk, ck))"));
  
              cluster.get(1).executeInternal(withKeyspace("INSERT INTO %s.tbl (pk, ck, v1) VALUES (1, 1, 1)"));
              cluster.get(2).executeInternal(withKeyspace("INSERT INTO %s.tbl (pk, ck, v1) VALUES (1, 1, 1)"));
              cluster.get(3).executeInternal(withKeyspace("INSERT INTO %s.tbl (pk, ck, v1) VALUES (1, 1, 1)"));
  
              // Introduce schema disagreement
              cluster.schemaChange(withKeyspace("ALTER TABLE %s.tbl ADD v2 int"), 1);
  
              // this write shouldn't cause any problems because it doesn't write to the new column
              cluster.coordinator(1).execute(withKeyspace("INSERT INTO %s.tbl (pk, ck, v1) VALUES (2, 2, 2)"), ALL);
          }
      }
  }
  