tests/compiler/dart2js/builtin_equals_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 'compiler_helper.dart';

const String TEST = r"""
foo() {
  String s = new Object().toString();
  Object o = new Object().toString();
  return s == 'foo'
    && s == null
    && null == s
    && null == o;
}
""";

main() {
  String generated = compile(TEST, entry: 'foo', enableTypeAssertions: true);
  Expect.isTrue(!generated.contains('eqB'));

  RegExp regexp = new RegExp('==');
  Iterator<Match> matches = regexp.allMatches(generated).iterator();
  checkNumberOfMatches(matches, 4);
}