add Thermometer and PowerSocket structs and Device enum

smart-house/src/device.rs

@@ -0,0 +1,55 @@
+use std::fmt::Display;
+
+pub enum Device {
+    Thermometer(super::Thermometer),
+    PowerSocket(super::PowerSocket),
+}
+
+impl Device {
+    pub fn display(&self) -> impl Display {
+        match self {
+            Device::Thermometer(thermometer) => {
+                format!("DEV:{}", thermometer.display())
+            }
+            Device::PowerSocket(power_socket) => {
+                format!("DEV:{}", power_socket.display())
+            }
+        }
+    }
+
+    pub fn print_status(&self) {
+        println!("{}", self.display());
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use crate::{PowerSocket, Thermometer};
+
+    #[test]
+    fn smoke_test() {
+        let dev_thermometer = Device::Thermometer(Thermometer::new(20.1));
+        let dev_power_socket = Device::PowerSocket(PowerSocket::new(11.2, false));
+
+        dev_thermometer.print_status();
+        dev_power_socket.print_status();
+
+        let Device::Thermometer(thermometer) = dev_thermometer else { unreachable!() };
+        let Device::PowerSocket(power_socket) = dev_power_socket else {
+            unreachable!()
+        };
+
+        assert_eq!(format!("{}", thermometer.display()), "Thermometer[ 20.1 ]");
+        assert_eq!(format!("{}", power_socket.display()), "PowerSocket[ OFF : 0.0 ]");
+    }
+
+    #[test]
+    fn display_test() {
+        let dev_thermometer = Device::Thermometer(Thermometer::new(20.1));
+        let dev_power_socket = Device::PowerSocket(PowerSocket::new(11.2, false));
+
+        assert_eq!(format!("{}", dev_thermometer.display()), "DEV:Thermometer[ 20.1 ]");
+        assert_eq!(format!("{}", dev_power_socket.display()), "DEV:PowerSocket[ OFF : 0.0 ]");
+    }
+}