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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.io.sstable;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Random;
  
  import com.google.common.io.Files;
  
  import org.apache.cassandra.io.util.File;
  import org.junit.Test;
  
  public class CQLSSTableWriterLongTest
  {
      @Test
      public void testWideRow() throws Exception
      {
          String KS = "cql_keyspace";
          String TABLE = "table1";
          int size = 30000;
  
          File tempdir = new File(Files.createTempDir());
          File dataDir = new File(tempdir.absolutePath() + File.pathSeparator() + KS + File.pathSeparator() + TABLE);
          assert dataDir.tryCreateDirectories();
  
          StringBuilder schemaColumns = new StringBuilder();
          StringBuilder queryColumns = new StringBuilder();
          StringBuilder queryValues = new StringBuilder();
          for (int i = 0; i < size; i++)
          {
              schemaColumns.append("v");
              schemaColumns.append(i);
              schemaColumns.append(" int,");
  
              queryColumns.append(", v");
              queryColumns.append(i);
  
              queryValues.append(", ?");
          }
          String schema = "CREATE TABLE cql_keyspace.table1 ("
                        + "  k int,"
                        + "  c int,"
                        + schemaColumns.toString()
                        + "  PRIMARY KEY (k, c)"
                        + ")";
          String insert = "INSERT INTO cql_keyspace.table1 (k, c" + queryColumns.toString() + ") VALUES (?, ?" + queryValues.toString() + ")";
  
          CQLSSTableWriter writer = CQLSSTableWriter.builder()
                                                    .inDirectory(dataDir)
                                                    .forTable(schema)
                                                    .using(insert)
                                                    .withBufferSizeInMB(1)
                                                    .build();
  
          long high = 100;
          Random r = new Random(0);
          for (int i = 0; i < high; i++)
          {
              List<Object> values = new ArrayList<>(size + 2);
              values.add(0);
              values.add(r.nextInt());
              for (int j = 0; j < size; j++)
              {
                  values.add(i);
              }
              writer.addRow(values);
          }
          writer.close();
      }
  }
  