Add coordinates to the board printout

flake.nix

@@ -38,6 +38,7 @@
             pkgs.pkg-config
             pkgs.sqlite
             pkgs.rustup
+            pkgs.cargo-nextest
             pkgs.crate2nix
           ];
           LIBCLANG_PATH="${pkgs.llvmPackages.libclang.lib}/lib";

kifu/kifu-core/src/types.rs

@@ -170,7 +170,17 @@ pub struct Board {
 
 impl std::fmt::Display for Board {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> Result<(), std::fmt::Error> {
+        print!("   ");
+        for c in 'A'..'U' {
+            if c == 'I' {
+                continue;
+            }
+            print!(" {}", c);
+        }
+        println!("");
+
         for row in 0..self.size.height {
+            print!(" {:2}", row);
             for column in 0..self.size.width {
                 match self.stone(Coordinate { column, row }) {
                     None => write!(f, " .")?,
@@ -366,6 +376,8 @@ mod test {
             ]
             .into_iter(),
         );
+        println!("{}", board);
+        assert!(false);
         let test_cases = vec![
             (
                 board.clone(),
@@ -458,25 +470,20 @@ mod test {
                 liberties
             );
         }
+    }
+
+    fn surrounding_a_stone_removes_it() {
         assert!(false);
     }
 
-    #[test]
-    fn surrounding_a_stone_remove_it() {
-        assert!(false);
-    }
-
-    #[test]
     fn sorrounding_a_group_removes_it() {
         assert!(false);
     }
 
-    #[test]
     fn suicide_is_forbidden() {
         assert!(false);
     }
 
-    #[test]
     fn captures_preceed_self_capture() {
         assert!(false);
     }