import 'package:flame_lua_runtime/runtime/lifecycle/runtime_async_gate.dart';
import 'package:flutter_test/flutter_test.dart';

void main() {
  group('RuntimeAsyncGate', () {
    test('accepts only current open generation tokens', () {
      final gate = RuntimeAsyncGate();
      final first = gate.activate();

      expect(gate.accepts(first), isTrue);
      expect(first.isAccepted, isTrue);

      final second = gate.advance();

      expect(gate.accepts(first), isFalse);
      expect(gate.accepts(second), isTrue);
    });

    test('close rejects existing and future checks until activated again', () {
      final gate = RuntimeAsyncGate();
      final first = gate.activate();

      gate.close();

      expect(gate.isClosed, isTrue);
      expect(gate.accepts(first), isFalse);
      expect(gate.acceptsGeneration(gate.generation), isFalse);

      final second = gate.activate();

      expect(gate.isOpen, isTrue);
      expect(gate.accepts(second), isTrue);
      expect(gate.accepts(first), isFalse);
    });
  });
}