private void checkRowValue(byte[] row, byte[] expectedValue) throws IOException {
    Get get = new Get(row).addColumn(TEST_FAMILY, qualifierCol1);
    Result result = hTableInterface.get(get);
    byte[] actualValue = result.getValue(TEST_FAMILY, qualifierCol1);
    assertArrayEquals(expectedValue, actualValue);
  }
This test runs batch mutation with Increments which have custom TimeRange. Custom Observer
records the TimeRange. We then verify that the recorded TimeRange has same bounds as the initial
TimeRange. See HBASE-15698
hbase-server/src/test/java/org/apache/hadoop/hbase/coprocessor/TestIncrementTimeRange.java