code: def test_image_modes_fail(self):
      for mode in [
          "",
          "bad",
          "very very long",
          "BGR;15",
          "BGR;16",
          "BGR;24",
          "BGR;32",
      ]:
          with pytest.raises(ValueError) as e:
              Image.new(mode, (1, 1))
          assert str(e.value) == "unrecognized image mode"
  
imports: import io
  import os
  import shutil
  import sys
  import tempfile
  import pytest
  from PIL import Image, ImageDraw, ImagePalette, UnidentifiedImageError
  from .helper import assert_image_equal, assert_image_equal_tofile, assert_image_similar_tofile, assert_not_all_same, hopper, is_win32, mark_if_feature_version, skip_unless_feature
label_desc: Use image node_id 2 for calling the TestImage obj's underlying member method code with example usage: obj.test_image_modes_fail() without return types