test: add endgame position perft test

1 files changed, 10 insertions, 0 deletions

diff --git a/src/board/engine.rs b/src/board/engine.rs
index 2aa8e28..ceee108 100644
--- a/src/board/engine.rs
+++ b/src/board/engine.rs
@@ -350,6 +350,16 @@ mod tests {
     }
 
     #[test]
+    fn endgame_perft() {
+        let fen = String::from("8/2p5/3p4/KP5r/1R3p1k/8/4P1P1/8 w - - ");
+        let mut board = Board::from_FEN(fen);
+
+        assert_eq!(board.perft(1, false), PerftResult { leaf_nodes: 14, captures: 1, en_passants: 0, castles: 0 , checks: 2 });
+        assert_eq!(board.perft(2, false), PerftResult { leaf_nodes: 191, captures: 14, en_passants: 0, castles: 0 , checks: 10 });
+        // assert_eq!(board.perft(3, false), PerftResult { leaf_nodes: 2182, captures: 209, en_passants: 2, castles: 0 , checks: 267 });
+    }
+
+    #[test]
     fn material_advantage() {
         let board = Board::new();
         assert_eq!(board.material_advantage(), 0.0, "Material advantage should be 0 at starting position");