refactor: move all tests out of src/ into tests/, remove unnecessary tests

src/entity/direction.rs

@@ -35,67 +35,3 @@ impl From<Direction> for IVec2 {
 }
 
 pub const DIRECTIONS: [Direction; 4] = [Direction::Up, Direction::Down, Direction::Left, Direction::Right];
-
-#[cfg(test)]
-mod tests {
-    use super::*;
-
-    #[test]
-    fn test_direction_opposite() {
-        assert_eq!(Direction::Up.opposite(), Direction::Down);
-        assert_eq!(Direction::Down.opposite(), Direction::Up);
-        assert_eq!(Direction::Left.opposite(), Direction::Right);
-        assert_eq!(Direction::Right.opposite(), Direction::Left);
-    }
-
-    #[test]
-    fn test_direction_as_ivec2() {
-        assert_eq!(Direction::Up.as_ivec2(), -IVec2::Y);
-        assert_eq!(Direction::Down.as_ivec2(), IVec2::Y);
-        assert_eq!(Direction::Left.as_ivec2(), -IVec2::X);
-        assert_eq!(Direction::Right.as_ivec2(), IVec2::X);
-    }
-
-    #[test]
-    fn test_direction_from_ivec2() {
-        assert_eq!(IVec2::from(Direction::Up), -IVec2::Y);
-        assert_eq!(IVec2::from(Direction::Down), IVec2::Y);
-        assert_eq!(IVec2::from(Direction::Left), -IVec2::X);
-        assert_eq!(IVec2::from(Direction::Right), IVec2::X);
-    }
-
-    #[test]
-    fn test_directions_constant() {
-        assert_eq!(DIRECTIONS.len(), 4);
-        assert!(DIRECTIONS.contains(&Direction::Up));
-        assert!(DIRECTIONS.contains(&Direction::Down));
-        assert!(DIRECTIONS.contains(&Direction::Left));
-        assert!(DIRECTIONS.contains(&Direction::Right));
-    }
-
-    #[test]
-    fn test_direction_equality() {
-        assert_eq!(Direction::Up, Direction::Up);
-        assert_ne!(Direction::Up, Direction::Down);
-        assert_ne!(Direction::Left, Direction::Right);
-    }
-
-    #[test]
-    fn test_direction_clone() {
-        let dir = Direction::Up;
-        let cloned = dir;
-        assert_eq!(dir, cloned);
-    }
-
-    #[test]
-    fn test_direction_hash() {
-        use std::collections::HashMap;
-        let mut map = HashMap::new();
-        map.insert(Direction::Up, "up");
-        map.insert(Direction::Down, "down");
-
-        assert_eq!(map.get(&Direction::Up), Some(&"up"));
-        assert_eq!(map.get(&Direction::Down), Some(&"down"));
-        assert_eq!(map.get(&Direction::Left), None);
-    }
-}