def METHOD_NAME(self):
    self.settings_panel.clear_all()
    self.settings_panel.set_default_message("add_readonly_field")
    self.settings_panel.add_readonly_field("No value")
    self.settings_panel.add_readonly_field("No select", "!@#$^%$#%", False)
    self.settings_panel.add_readonly_field("Can select", ":) :) :)")
    # There are 7 children, because each add_readonly_field adds 2 children and set_default_message adds 1 child.
    self.assertEqual(len(self.settings_panel.GetChildren()), 7)
    gui_loop(0.5)