feat(engine): line-bomb booster clears a row or column

2026-06-18 12:05:14 +09:00
parent bbf8cf3f08
commit e7cd079a5d
2 changed files with 49 additions and 0 deletions
@@ -66,4 +66,39 @@ void main() {
    e.declineAndLose();
    expect(e.useShuffle(), isFalse);
  });
+
+  test('useLineBomb(row:) empties that row, no scoring or move', () {
+    final e = GameEngine(_stage()); // row 0 has cells at x=0,1
+    final score0 = e.score;
+    final moves0 = e.movesUsed;
+
+    final ok = e.useLineBomb(row: 0);
+
+    expect(ok, isTrue);
+    for (var x = 0; x < 8; x++) {
+      expect(e.grid.isOccupied(x, 0), isFalse, reason: 'col $x');
+    }
+    expect(e.score, score0);
+    expect(e.movesUsed, moves0);
+  });
+
+  test('useLineBomb(col:) empties that column', () {
+    final e = GameEngine(_stage()); // (0,0) filled
+    expect(e.useLineBomb(col: 0), isTrue);
+    for (var y = 0; y < 8; y++) {
+      expect(e.grid.isOccupied(0, y), isFalse, reason: 'row $y');
+    }
+  });
+
+  test('useLineBomb requires exactly one of row/col', () {
+    final e = GameEngine(_stage());
+    expect(e.useLineBomb(), isFalse);
+    expect(e.useLineBomb(row: 0, col: 0), isFalse);
+  });
+
+  test('useLineBomb is rejected after the attempt finishes', () {
+    final e = GameEngine(_stage());
+    e.declineAndLose();
+    expect(e.useLineBomb(row: 0), isFalse);
+  });
 }