docstr: Passing zero length should not fail
docstr_tok: ["Passing","zero","length","should","not","fail"]
code: def test_pretrain_zero_length(self, factory_func):
      """Passing zero length should not fail"""
      self._test_zero_length(factory_func())
  
imports: import math
  import os
  from typing import Tuple
  import torch
  import torch.nn.functional
  from parameterized import parameterized
  from torchaudio.models.wav2vec2 import hubert_base, hubert_large, hubert_pretrain_base, hubert_pretrain_large, hubert_pretrain_xlarge, hubert_xlarge, wav2vec2_base, wav2vec2_large, wav2vec2_large_lv60k, wavlm_base, wavlm_large
  from torchaudio_unittest.common_utils import skipIfNoCuda, skipIfNoQengine, torch_script, TorchaudioTestCase
label_desc: Use image node_id 10 for calling the TestWav2Vec2Model obj's underlying member method code with example usage: obj.test_pretrain_zero_length(factory_func) without return types