// enums3.rs // Address all the TODOs to make the tests pass! // I AM NOT DONE enum Message { // TODO: implement the message variant types based on their usage below } struct Point { x: u8, y: u8, } struct State { color: (u8, u8, u8), position: Point, quit: bool, } impl State { fn change_color(&mut self, color: (u8, u8, u8)) { self.color = color; } fn quit(&mut self) { self.quit = true; } fn echo(&self, s: String) { println!("{}", s); } fn move_position(&mut self, p: Point) { self.position = p; } fn process(&mut self, message: Message) { // TODO: create a match expression to process the different message variants } } #[cfg(test)] mod tests { use super::*; #[test] fn test_match_message_call() { let mut state = State { quit: false, position: Point { x: 0, y: 0 }, color: (0, 0, 0), }; state.process(Message::ChangeColor((255, 0, 255))); state.process(Message::Echo(String::from("hello world"))); state.process(Message::Move(Point { x: 10, y: 15 })); state.process(Message::Quit); assert_eq!(state.color, (255, 0, 255)); assert_eq!(state.position.x, 10); assert_eq!(state.position.y, 15); assert_eq!(state.quit, true); } }