code: def test_invalid_file():
      invalid_file = "Tests/images/flower.jpg"
  
      with pytest.raises(SyntaxError):
          Jpeg2KImagePlugin.Jpeg2KImageFile(invalid_file)
  
imports: import os
  import re
  from io import BytesIO
  import pytest
  from PIL import Image, ImageFile, Jpeg2KImagePlugin, UnidentifiedImageError, features
  from .helper import assert_image_equal, assert_image_similar, assert_image_similar_tofile, skip_unless_feature
label_desc: Use image node_id 4 for calling a global function with example usage: test_invalid_file() without return types