New methods

src/math/bounding_box.rs

@@ -9,7 +9,7 @@ macro_rules! make_bounding_box {
         use math::vector::$vector;
 
         /// Represents a bounding box.
-        #[derive(Clone)]
+        #[derive(Clone, Debug, PartialEq)]
         pub struct $name<T> {
             min: $vector<T>,
             max: $vector<T>,
@@ -137,13 +137,16 @@ mod tests {
             Vector3::new(3, 3, 3),
         );
 
-        let b = b1.intersection(&b2);
-        assert_eq!(b.min().x(), 1);
-        assert_eq!(b.min().y(), 1);
-        assert_eq!(b.min().z(), 1);
+        let bb1 = b1.intersection(&b2);
+        assert_eq!(bb1.min().x(), 1);
+        assert_eq!(bb1.min().y(), 1);
+        assert_eq!(bb1.min().z(), 1);
 
-        assert_eq!(b.max().x(), 2);
-        assert_eq!(b.max().y(), 2);
-        assert_eq!(b.max().z(), 2);
+        assert_eq!(bb1.max().x(), 2);
+        assert_eq!(bb1.max().y(), 2);
+        assert_eq!(bb1.max().z(), 2);
+
+        let bb2 = b2.intersection(&b1);
+        assert_eq!(bb1, bb2);
     }
 }