@Test(expected = SQLException.class)
  public void testTruncateExternalAutoPurge() throws Exception {
    LOG.info("Running " + name.getMethodName());
    testUtil(String.valueOf(true), true, false, true, name.getMethodName());
  }
Tests when auto.purge is set to false on a partitioned external table, older data is moved to
Trash when insert overwrite table .. is run

@throws Exception
itests/hive-unit/src/test/java/org/apache/hadoop/hive/ql/TestAutoPurgeTables.java