code: def test__non_existent():
      # given
      arg_string = "some/path/to/executable.py"
  
      # when
      found_path = get_valid_executable_path_or_empty_path(arg_string)
  
      # then
      assert found_path == empty_path
  
imports: from pathlib import Path
  from random import choices
  from string import ascii_lowercase
  from neptune.vendor.lib_programname import empty_path, get_valid_executable_path_or_empty_path
label_desc: Use image node_id 1 for calling a global function with example usage: test__non_existent() without return types