Add tests to text_format

roblib/Cargo.toml

@@ -26,3 +26,6 @@ roland = []
 camloc = ["dep:camloc-server"]
 
 gpio-backend = ["dep:rppal"]
+
+[dev-dependencies]
+rand = "0.8.5"

roblib/src/text_format/mod.rs

@@ -1,3 +1,57 @@
 pub mod de;
 pub mod error;
 pub mod ser;
+
+#[cfg(test)]
+mod tests {
+    use crate::{
+        cmd::{self, Concrete},
+        event,
+    };
+    use rand::random;
+
+    #[test]
+    fn ser_matches_de() -> anyhow::Result<()> {
+        for _ in 0..100 {
+            let cs = [
+                Concrete::MoveRobot(cmd::MoveRobot(random(), random())),
+                Concrete::MoveRobotByAngle(cmd::MoveRobotByAngle(random(), random())),
+                Concrete::StopRobot(cmd::StopRobot),
+                Concrete::Led(cmd::Led(random(), random(), random())),
+                Concrete::RolandServo(cmd::RolandServo(random())),
+                Concrete::Buzzer(cmd::Buzzer(random())),
+                Concrete::TrackSensor(cmd::TrackSensor),
+                Concrete::UltraSensor(cmd::UltraSensor),
+                Concrete::PinMode(cmd::PinMode(
+                    random(),
+                    if random::<bool>() {
+                        crate::gpio::Mode::Input
+                    } else {
+                        crate::gpio::Mode::Output
+                    },
+                )),
+                Concrete::ReadPin(cmd::ReadPin(random())),
+                Concrete::WritePin(cmd::WritePin(random(), random())),
+                Concrete::Pwm(cmd::Pwm(random(), random(), random())),
+                Concrete::Servo(cmd::Servo(random(), random())),
+                Concrete::GetPosition(cmd::GetPosition),
+                Concrete::Subscribe(cmd::Subscribe(event::GpioPin(random()).into())),
+                Concrete::Unsubscribe(cmd::Unsubscribe(event::GpioPin(random()).into())),
+                Concrete::Nop(cmd::Nop),
+                Concrete::GetUptime(cmd::GetUptime),
+                Concrete::Abort(cmd::Abort),
+            ];
+
+            for c in cs {
+                let txt1 = super::ser::to_string(&c)?;
+                let concrete = super::de::from_str::<Concrete>(&txt1)?;
+                let txt2 = super::ser::to_string(&concrete)?;
+                if txt1 != txt2 {
+                    println!("❌ {txt1} | {txt2}");
+                }
+            }
+        }
+
+        Ok(())
+    }
+}