Unit-test input event deserialization

Author: fwcd

lighthouse-protocol/Cargo.toml

@@ -14,3 +14,6 @@ rand = "0.8"
 rmpv = { version = "1.0.1", features = ["with-serde"] }
 serde = { version = "1.0", features = ["derive"] }
 serde_with = "3.4"
+
+[dev-dependencies]
+serde_json = "1.0"

lighthouse-protocol/src/input/input_event.rs

@@ -10,3 +10,89 @@ pub enum InputEvent {
     Mouse(MouseEvent),
     Gamepad(GamepadEvent),
 }
+
+#[cfg(test)]
+mod tests {
+    use serde_json::json;
+
+    use crate::{EventSource, GamepadAxisEvent, GamepadButtonEvent, GamepadControlEvent, GamepadEvent, InputEvent, KeyEvent, MouseButton, MouseEvent, Pos};
+
+    #[test]
+    fn key_event() {
+        assert_eq!(
+            serde_json::from_value::<InputEvent>(json!({
+                "type": "key",
+                "source": 0,
+                "down": true,
+                "key": "ArrowUp",
+            })).unwrap(),
+            InputEvent::Key(KeyEvent {
+                source: EventSource::Int(0),
+                down: true,
+                key: "ArrowUp".into(),
+            })
+        );
+    }
+
+    #[test]
+    fn mouse_event() {
+        assert_eq!(
+            serde_json::from_value::<InputEvent>(json!({
+                "type": "mouse",
+                "source": 1,
+                "button": "left",
+                "pos": {
+                    "x": 2,
+                    "y": 4,
+                },
+            })).unwrap(),
+            InputEvent::Mouse(MouseEvent {
+                source: EventSource::Int(1),
+                button: MouseButton::Left,
+                pos: Pos::new(2.0, 4.0),
+            })
+        );
+    }
+
+    #[test]
+    fn gamepad_button_event() {
+        assert_eq!(
+            serde_json::from_value::<InputEvent>(json!({
+                "type": "gamepad",
+                "source": 1,
+                "control": "button",
+                "index": 42,
+                "down": true,
+                "value": 0.25,
+            })).unwrap(),
+            InputEvent::Gamepad(GamepadEvent {
+                source: EventSource::Int(1),
+                control: GamepadControlEvent::Button(GamepadButtonEvent {
+                    index: 42,
+                    down: true,
+                    value: 0.25,
+                }),
+            })
+        );
+    }
+
+    #[test]
+    fn gamepad_axis_event() {
+        assert_eq!(
+            serde_json::from_value::<InputEvent>(json!({
+                "type": "gamepad",
+                "source": 1,
+                "control": "axis",
+                "index": 42,
+                "value": 0.25,
+            })).unwrap(),
+            InputEvent::Gamepad(GamepadEvent {
+                source: EventSource::Int(1),
+                control: GamepadControlEvent::Axis(GamepadAxisEvent {
+                    index: 42,
+                    value: 0.25,
+                }),
+            })
+        );
+    }
+}