From d98b28cb36b18638d8f844ec13192d60261d27f6 Mon Sep 17 00:00:00 2001
From: Patrick Gelvin <patrick@gelvin.dev>
Date: Sat, 23 Aug 2025 13:02:41 -0700
Subject: [PATCH] Cut triangle test

---
 src/card.rs | 103 +++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 102 insertions(+), 1 deletion(-)

diff --git a/src/card.rs b/src/card.rs
index 5694669..db78b16 100644
--- a/src/card.rs
+++ b/src/card.rs
@@ -616,7 +616,108 @@ mod test {
 
   #[test]
   fn cut_triangle() {
-    todo!();
+    let tri = Card {
+      cells: NW_TRIANGLE,
+      ..Default::default()
+    };
+
+    // Pairs of each different slice option
+    let vert_left_pair = (
+      Card {
+        #[rustfmt::skip]
+        cells: [
+          Cell::Empty, Cell::Empty, Cell::Empty,
+          Cell::Empty, Cell::Empty, Cell::Empty,
+          Cell::NW, Cell::Empty, Cell::Empty,
+        ],
+        ..Default::default()
+      },
+      Card {
+        #[rustfmt::skip]
+        cells: [
+          Cell::Empty, Cell::Empty, Cell::NW,
+          Cell::Empty, Cell::NW, Cell::Filled,
+          Cell::Empty, Cell::Filled, Cell::Filled,
+        ],
+        ..Default::default()
+      },
+    );
+
+    let vert_right_pair = (
+      Card {
+        #[rustfmt::skip]
+        cells: [
+          Cell::Empty, Cell::Empty, Cell::Empty,
+          Cell::Empty, Cell::NW, Cell::Empty,
+          Cell::NW, Cell::Filled, Cell::Empty,
+        ],
+        ..Default::default()
+      },
+      Card {
+        #[rustfmt::skip]
+        cells: [
+          Cell::Empty, Cell::Empty, Cell::NW,
+          Cell::Empty, Cell::Empty, Cell::Filled,
+          Cell::Empty, Cell::Empty, Cell::Filled,
+        ],
+        ..Default::default()
+      },
+    );
+
+    let horiz_top_pair = (
+      Card {
+        #[rustfmt::skip]
+        cells: [
+          Cell::Empty, Cell::Empty, Cell::NW,
+          Cell::Empty, Cell::Empty, Cell::Empty,
+          Cell::Empty, Cell::Empty, Cell::Empty,
+        ],
+        ..Default::default()
+      },
+      Card {
+        #[rustfmt::skip]
+        cells: [
+          Cell::Empty, Cell::Empty, Cell::Empty,
+          Cell::Empty, Cell::NW, Cell::Filled,
+          Cell::NW, Cell::Filled, Cell::Filled,
+        ],
+        ..Default::default()
+      },
+    );
+
+    let horiz_bottom_pair = (
+      Card {
+        #[rustfmt::skip]
+        cells: [
+          Cell::Empty, Cell::Empty, Cell::NW,
+          Cell::Empty, Cell::NW, Cell::Filled,
+          Cell::Empty, Cell::Empty, Cell::Empty,
+        ],
+        ..Default::default()
+      },
+      Card {
+        #[rustfmt::skip]
+        cells: [
+          Cell::Empty, Cell::Empty, Cell::Empty,
+          Cell::Empty, Cell::Empty, Cell::Empty,
+          Cell::NW, Cell::Filled, Cell::Filled,
+        ],
+        ..Default::default()
+      },
+    );
+
+    // Run tests
+    let result_vleft = tri.clone().cut(CutLine::VertLeft);
+    assert_eq!(result_vleft, vert_left_pair);
+
+    let result_vright = tri.clone().cut(CutLine::VertRight);
+    assert_eq!(result_vright, vert_right_pair);
+
+    let result_hupper = tri.clone().cut(CutLine::HorizUpper);
+    assert_eq!(result_hupper, horiz_top_pair);
+
+    let result_hlower = tri.cut(CutLine::HorizLower);
+    assert_eq!(result_hlower, horiz_bottom_pair);
   }
 
   #[test]