'Verifies radio button group identified by `group_name` has no selection.
See `Select Radio Button` for information about how radio buttons are
located.'

@keyword
def radio_button_should_not_be_selected(self, group_name):

    self.info(("Verifying    radio    button    '%s'    has    no    selection." % group_name))
    elements = self._get_radio_buttons(group_name)
    actual_value = self._get_value_from_radio_buttons(elements)
    if (actual_value is not None):
        raise AssertionError(("Radio    button    group    '%s'    should    not    have    had    selection,    but    '%s'    was    selected" % (group_name, actual_value)))
