Add widgets, proper resources.rs

lib/src/board.rs

@@ -19,7 +19,7 @@ use square::{Square, SquarePair};
 
 use crate::generator::Puzzle;
 
-#[derive(Clone)]
+#[derive(Clone, Default)]
 pub struct Board {
     pub cells: [[Option<Piece>; BOARD_SIZE]; BOARD_SIZE],
     pub legal_moves: HashSet<CMove>,
@@ -37,6 +37,12 @@ pub enum BoardState {
     Won,
 }
 
+impl Default for BoardState {
+    fn default() -> Self {
+        BoardState::NotStarted
+    }
+}
+
 impl Board {
     pub fn new() -> Self {
         let cells = [[None; BOARD_SIZE]; BOARD_SIZE];
@@ -714,4 +720,59 @@ mod tests {
 
         validate_board!(board2, "..NB", "....", "RQ.K", "P...");
     }
+
+    macro_rules! sq {
+        ($sq:literal) => {
+            Square::parse($sq)
+        };
+    }
+
+    #[test]
+    fn solver_smoke() {
+        let mut board = Board::new();
+        // . R . .
+        // R . . P
+        // B . B N
+        // P . N .
+
+        board.set(sq!("Pa1"));
+        board.set(sq!("Ba2"));
+        board.set(sq!("Ra3"));
+        board.set(sq!("Rb4"));
+        board.set(sq!("Nc1"));
+        board.set(sq!("Bc2"));
+        board.set(sq!("Nd2"));
+        board.set(sq!("Pd3"));
+
+        let solutions = board.solve().solutions;
+
+        for solution in solutions {
+            let mut board = board.clone();
+            solution
+                .into_iter()
+                .for_each(|m| assert!(board.make_move(m).is_some()));
+            assert_eq!(BoardState::Won, board.game_state);
+        }
+    }
+
+    #[test]
+    fn solver_smoke_no_solution() {
+        // . R . .
+        // R . . .
+        // B . B N
+        // P . N .
+
+        let mut board = Board::new();
+        board.set(sq!("Pa1"));
+        board.set(sq!("Ba2"));
+        board.set(sq!("Ra3"));
+        board.set(sq!("Rb4"));
+        board.set(sq!("Nc1"));
+        board.set(sq!("Bc2"));
+        board.set(sq!("Nd2"));
+
+        let solutions = board.solve().solutions;
+
+        assert_eq!(0, solutions.len());
+    }
 }