code: def test_from_hexstr_invalid():
      with pytest.raises(ValueError):
          color.Color.from_hexstr("#21")
  
      with pytest.raises(ValueError):
          color.Color.from_hexstr("#12345")
  
      with pytest.raises(ValueError):
          color.Color.from_hexstr("##112233")
  
      with pytest.raises(ValueError):
          color.Color.from_hexstr("#1234567890")
  
file_path: kubric/test/test_color.py
imports: import pytest
  import hypothesis
  from hypothesis import strategies
  from kubric.core import color
label_desc: Use image node_id 3 for calling a global function with example usage: test_from_hexstr_invalid() without return types