@Override
  public void setUp() throws Exception {
    super.setUp();
    hiveConf.set(MetastoreConf.ConfVars.CREATE_TABLES_AS_ACID.getVarname(), "true");
  }
tests for IMPORT/EXPORT of transactional tables.
ql/src/test/org/apache/hadoop/hive/ql/TestTxnExIm.java