def dummy_dataset_paths_no_valid(tmpdir_factory):
    """Creates and returns the path to a temporary dataset folder, and train, and test files.
    """
    # create a dummy dataset folder
    dummy_dir = tmpdir_factory.mktemp('dummy_dataset')
    # create train, valid and train partitions in this folder
    train_file = dummy_dir.join('train.tsv')
    train_file.write('arbitrary') # need to write content or else the file wont exist
    test_file = dummy_dir.join('test.tsv')
    test_file.write('arbitrary')

    return dummy_dir.strpath, train_file.strpath, test_file.strpath