@Override
        protected void finished(Description description) {
          operator.endWindow();
          operator.teardown();

          deleteDirectory();
          super.finished(description);
        }
  @Test
  public void testJSONToPOJONoFieldPOJO() {
    operator.endWindow();
    operator.teardown();
    operator.setup(null);
    operator.beginWindow(1);

    TestPojo o = new TestPojo();
    operator.in.put(o);
    Assert.assertEquals(0, validDataSink.collectedTuples.size());
    Assert.assertEquals(1, invalidDataSink.collectedTuples.size());
    Assert.assertEquals(o, invalidDataSink.collectedTuples.get(0));
    Assert.assertEquals(1, operator.getIncomingTuplesCount());
    Assert.assertEquals(0, operator.getEmittedObjectCount());
    Assert.assertEquals(1, operator.getErrorTupleCount());
  }