@After
  public void tearDown() throws Exception {
    for (TableDescriptor htd : TEST_UTIL.getAdmin().listTableDescriptors()) {
      TEST_UTIL.deleteTable(htd.getTableName());
    }
  }
The purpose of this test is to ensure whether rs deals with the malformed cells correctly.
hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestMalformedCellFromClient.java