autocommit 2022-04-04 23:09:39 CEST

src/rect/tests.rs

@@ -0,0 +1,60 @@
+use crate::rect::{Rect, Region};
+
+#[test]
+fn union1() {
+    let r1 = Region::new(Rect::new(0, 0, 10, 10).unwrap());
+    let r2_ = Region::new(Rect::new(5, 5, 15, 15).unwrap());
+    let r2 = Region::new(Rect::new(10, 10, 20, 20).unwrap());
+    let r3 = r1.union(&r2).union(&r2_);
+    assert_eq!(r3.extents, Rect::new(0, 0, 20, 20).unwrap());
+    assert_eq!(
+        &r3.rects[..],
+        &[
+            Rect::new(0, 0, 10, 5).unwrap(),
+            Rect::new(0, 5, 15, 10).unwrap(),
+            Rect::new(5, 10, 20, 15).unwrap(),
+            Rect::new(10, 15, 20, 20).unwrap(),
+        ]
+    );
+}
+
+#[test]
+fn union2() {
+    let r1 = Region::new(Rect::new(0, 0, 10, 10).unwrap());
+    let r2 = Region::new(Rect::new(0, 10, 10, 20).unwrap());
+    let r3 = r1.union(&r2);
+    assert_eq!(r3.extents, Rect::new(0, 0, 10, 20).unwrap());
+    assert_eq!(&r3.rects[..], &[Rect::new(0, 0, 10, 20).unwrap(),]);
+}
+
+#[test]
+fn subtract1() {
+    let r1 = Region::new(Rect::new(0, 0, 20, 20).unwrap());
+    let r2 = Region::new(Rect::new(5, 5, 15, 15).unwrap());
+    let r3 = r1.subtract(&r2);
+    assert_eq!(r3.extents, Rect::new(0, 0, 20, 20).unwrap());
+    assert_eq!(&r3.rects[..], &[Rect::new(0, 0, 10, 20).unwrap(),]);
+}
+
+#[test]
+fn rects_to_bands() {
+    let rects = [
+        Rect::new_unchecked(0, 0, 10, 10),
+        Rect::new_unchecked(5, 0, 30, 10),
+        Rect::new_unchecked(30, 5, 50, 15),
+    ];
+    let r = Region::from_rects(&rects[..]);
+    println!("{:#?}", r.rects);
+    assert_eq!(&r.rects[..], &[Rect::new(0, 0, 10, 20).unwrap(),]);
+}
+
+#[test]
+fn rects_to_bands2() {
+    let rects = [
+        Rect::new_unchecked(0, 0, 10, 10),
+        Rect::new_unchecked(0, 10, 10, 20),
+    ];
+    let r = Region::from_rects(&rects[..]);
+    println!("{:#?}", r.rects);
+    assert_eq!(&r.rects[..], &[Rect::new(0, 0, 10, 20).unwrap(),]);
+}