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    * 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,
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   * See the License for the specific language governing permissions and
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  package org.apache.omid.transaction;
  
  import static org.testng.Assert.assertEquals;
  
  import org.apache.hadoop.hbase.client.Get;
  import org.apache.hadoop.hbase.client.Put;
  import org.apache.hadoop.hbase.client.Result;
  import org.apache.hadoop.hbase.util.Bytes;
  import org.testng.ITestContext;
  import org.testng.annotations.Test;
  
  @Test(groups = "sharedHBase")
  public class TestAutoFlush extends OmidTestBase {
  
      @Test(timeOut = 10_000)
      public void testReadWithSeveralUncommitted(ITestContext context) throws Exception {
  
          byte[] family = Bytes.toBytes(TEST_FAMILY);
          byte[] row = Bytes.toBytes("row");
          byte[] col = Bytes.toBytes("col1");
          byte[] data = Bytes.toBytes("data");
          TransactionManager tm = newTransactionManager(context);
          TTable table = new TTable(connection, TEST_TABLE);
  
          // Turn off autoflush
          table.setAutoFlush(false);
  
          Transaction t = tm.begin();
          Put put = new Put(row);
          put.addColumn(family, col, data);
          table.put(t, put);
  
          // Data shouldn't be in DB yet
          Get get = new Get(row);
          Result result = table.getHTable().get(get);
          assertEquals(result.size(), 0, "Writes are already in DB");
  
          //data should be readable within same transaction
          result = table.get(t,get);
          assertEquals(result.size(), 1, "Writes should be read by same transaction");
  
          tm.commit(t);
  
          // After commit, both the cell and shadow cell should be there.
          // That's why we check for two elements in the test assertion
          result = table.getHTable().get(get);
          assertEquals(result.size(), 2, "Writes were not flushed to DB");
      }
  
  }