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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
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   * See the License for the specific language governing permissions and
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  package org.apache.cassandra.distributed.test;
  
  import org.junit.Test;
  import org.junit.Assert;
  
  import org.apache.cassandra.db.Keyspace;
  import org.apache.cassandra.db.commitlog.CommitLog;
  import org.apache.cassandra.distributed.Cluster;
  import org.apache.cassandra.schema.TableId;
  
  public class DurableWritesTest extends TestBaseImpl
  {
      @Test
      public void durableWritesDisabledTest() throws Throwable
      {
          try (Cluster cluster = init(Cluster.build(1)
                                             .withConfig(c -> c.set("commitlog_segment_size_in_mb", 1)
                                             )
                                             .start()))
          {
              cluster.schemaChange(withKeyspace("DROP KEYSPACE %s"));
              cluster.schemaChange(withKeyspace("CREATE KEYSPACE %s WITH replication = {'class': 'SimpleStrategy', 'replication_factor': 1} AND DURABLE_WRITES = false"));
              cluster.schemaChange(withKeyspace("CREATE TABLE %s.tbl (k INT PRIMARY KEY, a INT, b INT, c INT)"));
  
              for (int i = 1; i <= 1000; i++)
              {
                  cluster.get(1).executeInternal(withKeyspace("INSERT INTO %s.tbl (k, a, b, c) VALUES (1, 1, 1, 1)"));
              }
  
              cluster.get(1).runOnInstance(() -> {
                  TableId wanted = TableId.fromString(Keyspace.open(KEYSPACE).getColumnFamilyStore("tbl").metadata.id.toString());
                  boolean containsTbl = CommitLog.instance.segmentManager
                      .getActiveSegments()
                      .stream()
                      .anyMatch(s -> s.getDirtyTableIds().contains(wanted));
                  Assert.assertFalse("Commitlog should not contain data from 'tbl'", containsTbl);
              });
          }
      }
  
  }
  