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   * Licensed to the Apache Software Foundation (ASF) under one
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   * distributed with this work for additional information
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   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
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   *
   *     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.index.sai.cql;
  
  import java.util.List;
  
  import org.junit.BeforeClass;
  import org.junit.Test;
  
  import com.datastax.driver.core.Row;
  import org.apache.cassandra.index.sai.SAITester;
  
  import static org.junit.Assert.assertEquals;
  
  public class DuplicateRowIDTest extends SAITester
  {
      @BeforeClass
      public static void setupCluster()
      {
          requireNetwork();
      }
  
      @Test
      public void shouldTolerateDuplicatedRowIDsAfterMemtableUpdates() throws Throwable
      {
          createTable("CREATE TABLE %s (id1 TEXT PRIMARY KEY, v1 INT)");
          createIndex(String.format(CREATE_INDEX_TEMPLATE, "v1"));
  
          for (int i = 0; i < 2048; ++i)
          {
              execute("INSERT INTO %s (id1, v1) VALUES (?, ?)", Integer.toString(i % 10), i);
          }
  
          // tolerate query duplicates from memtable
          List<Row> rows = executeNet("SELECT * FROM %s WHERE v1 > 0").all();
          assertEquals(10, rows.size());
  
          for (int i = 0; i < 2048; ++i)
          {
              execute("INSERT INTO %s (id1, v1) VALUES (?, ?)", Integer.toString(i % 10), i);
          }
  
          // tolerate duplicates from memtable and sstable
          rows = executeNet("SELECT * FROM %s WHERE v1 > 0").all();
          assertEquals(10, rows.size());
      }
  }
  