Files
rust-otus/smart-house/src/house.rs

99 lines
2.8 KiB
Rust

use crate::Room;
pub struct House {
address: String,
rooms: Box<[Room]>,
}
impl House {
pub fn new(address: impl AsRef<str>, rooms: Box<[Room]>) -> Self {
Self {
address: address.as_ref().to_string(),
rooms,
}
}
fn is_valid_idx(&self, idx: usize) -> bool {
idx < self.rooms.len()
}
pub fn get_room(&self, idx: usize) -> Option<&Room> {
if self.is_valid_idx(idx) { Some(&self.rooms[idx]) } else { None }
}
pub fn get_room_mut(&mut self, idx: usize) -> Option<&mut Room> {
if self.is_valid_idx(idx) { Some(&mut self.rooms[idx]) } else { None }
}
pub fn print_status(&self) {
println!("HOUSE '{}':", self.address);
println!("{}", "=".repeat(32));
for d in self.rooms.iter() {
d.print_status();
println!();
}
}
}
#[cfg(test)]
mod tests {
use super::*;
use crate::{Device, PowerSocket, Thermometer};
fn create_test_house() -> House {
House::new(
"Best street, 777",
Box::new([
Room::new(
"main",
Box::new([
Device::Thermometer(Thermometer::new("ThermA", 20.0)),
Device::PowerSocket(PowerSocket::new(12.34, false)),
Device::PowerSocket(PowerSocket::new(10.01, true)),
]),
),
Room::new(
"bedroom",
Box::new([
Device::PowerSocket(PowerSocket::new(11.11, true)),
Device::Thermometer(Thermometer::new("ThermB", 17.99)),
]),
),
]),
)
}
#[test]
fn smoke_test() {
let mut house = create_test_house();
house.print_status();
assert_eq!(house.address, "Best street, 777");
assert_eq!(format!("{}", house.get_room(0).unwrap().get_device(0).unwrap().display()), "DEV:ThermA[ 20.0 ]");
assert_eq!(
format!("{}", house.get_room(0).unwrap().get_device(1).unwrap().display()),
"DEV:PowerSocket[ OFF : 0.0 ]"
);
assert_eq!(
format!("{}", house.get_room(1).unwrap().get_device(0).unwrap().display()),
"DEV:PowerSocket[ ON : 11.1 ]"
);
let Device::PowerSocket(powers_socket) = house.get_room_mut(0).unwrap().get_device_mut(1).unwrap() else {
unreachable!()
};
powers_socket.set_on(true);
assert_eq!(
format!("{}", house.get_room(0).unwrap().get_device(1).unwrap().display()),
"DEV:PowerSocket[ ON : 12.3 ]"
);
}
#[test]
fn check_out_of_bounds() {
let house = create_test_house();
assert!(house.get_room(2).is_none());
}
}