Created by: Fangkey

In train.py line 89, dataset.test(args.test_data_path) will set the data file path to test data. For in line 105, train function use the same dataset object, after one call for __event_handler__ if event.batch_id % 1000 == 0, the dataset will change to test data permanently and the following training iteration will use test data. That is not what we expect, check please.