def METHOD_NAME(self):
    """
    Test empty value preserved after edit
    """
    ini.set_option(self.tfile.name, {"SectionB": {"test3": "new value 3B"}})
    with salt.utils.files.fopen(self.tfile.name, "r") as fp_:
        file_content = salt.utils.stringutils.to_unicode(fp_.read())
    expected = "{0}{1}{0}".format(os.linesep, "empty_option = ")
    self.assertIn(expected, file_content, "empty_option was not preserved")