fix: coverage

test/game/behaviors/camera_focusing_behavior_test.dart

@@ -34,6 +34,19 @@ void main() {
         expect(game.descendants(), contains(behavior));
       });
 
+      flameTester.test('resizes and snaps', (game) async {
+        final behavior = CameraFocusingBehavior();
+        await game.ensureAdd(
+          FlameBlocProvider<GameBloc, GameState>.value(
+            value: GameBloc(),
+            children: [behavior],
+          ),
+        );
+
+        behavior.onGameResize(Vector2.all(10));
+        expect(game.camera.zoom, greaterThan(0));
+      });
+
       flameTester.test(
         'changes focus when loaded',
         (game) async {