diff --git a/test/domain/game_engine_test.dart b/test/domain/game_engine_test.dart
index f810de2..31d2e00 100644
--- a/test/domain/game_engine_test.dart
+++ b/test/domain/game_engine_test.dart
@@ -1,4 +1,5 @@
 import 'package:flutter_test/flutter_test.dart';
+import 'package:pokeguess/core/config/app_constants.dart';
 import 'package:pokeguess/domain/entities/pokemon.dart';
 import 'package:pokeguess/domain/game/game_engine.dart';
 import 'package:pokeguess/domain/game/game_state.dart';
@@ -102,6 +103,21 @@ void main() {
     final r = _engine.useSkip(s);
     expect(r.skips, 2);
   });
+
+  test('bonus: skip tous les 10 bonnes réponses', () {
+    var s = const GameState(sessionCorrectCount: 9, status: GameStatus.playing);
+    s = _engine.startRound(s, _poke('pikachu'), isShiny: false);
+    final o = _engine.submitGuess(s, 'pikachu'); // 10e bonne réponse
+    expect(o.state.sessionCorrectCount, 10);
+    expect(o.state.skips, AppConstants.startingSkips + 1);
+  });
+
+  test('submitGuess renvoie invalid quand la manche n\'est pas en cours', () {
+    const s = GameState(status: GameStatus.loading); // aucun pokemon, pas en playing
+    final o = _engine.submitGuess(s, 'pikachu');
+    expect(o.result, GuessResult.invalid);
+    expect(identical(o.state, s), true);
+  });
 }
 
 /// Valeur attendue de hints au démarrage (miroir d'AppConstants.startingHints = 3).