tests/compiler/dart2js/codegen/null_type_test.dart

// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.

import 'package:expect/expect.dart';
import 'package:async_helper/async_helper.dart';
import '../compiler_helper.dart';

const String TEST_ONE = r"""
foo() {
  var c = null;
  while (true) c = 1 + c;
}
""";

main() {
  runTest({bool useKernel}) async {
    await compile(TEST_ONE, entry: 'foo', useKernel: useKernel,
        check: (String generated) {
      Expect.isFalse(generated.contains('typeof (void 0)'));
    });
  }

  asyncTest(() async {
    print('--test from ast---------------------------------------------------');
    await runTest(useKernel: false);
    print('--test from kernel------------------------------------------------');
    await runTest(useKernel: true);
  });
}