code: def test_read_video_corrupted_file(self):
      with tempfile.NamedTemporaryFile(suffix=".mp4") as f:
          f.write(b"This is not an mpg4 file")
          video, audio, info = io.read_video(f.name)
          assert isinstance(video, torch.Tensor)
          assert isinstance(audio, torch.Tensor)
          assert video.numel() == 0
          assert audio.numel() == 0
          assert info == {}
  
imports: import contextlib
  import os
  import sys
  import tempfile
  import pytest
  import torch
  import torchvision.io
  from common_utils import assert_equal
  from torchvision import get_video_backend
label_desc: Use image node_id 12 for calling the TestVideo obj's underlying member method code with example usage: obj.test_read_video_corrupted_file() without return types