| // Copyright (c) 2013, 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. |

| /// Test of a common rounding bug. |

| /// This bug is common in JavaScript implementations because the ECMA-262 |

| /// specification of JavaScript incorrectly claims: |

| /// The value of [:Math.round(x):] is the same as the value of |

| /// [:Math.floor(x+0.5):], except when x is 0 or is less than 0 but greater |

| /// than or equal to -0.5; for these cases [:Math.round(x):] returns 0, but |

| /// [:Math.floor(x+0.5):] returns +0. |

| /// However, 0.49999999999999994 + 0.5 is 1 and 9007199254740991 + 0.5 is |

| /// 9007199254740992, so you cannot implement Math.round in terms of |

| import 'package:expect/expect.dart'; |

| Expect.equals(0, (0.49999999999999994).round()); |

| Expect.equals(0, (-0.49999999999999994).round()); |

| Expect.equals(9007199254740991, (9007199254740991.0).round()); |

| Expect.equals(-9007199254740991, (-9007199254740991.0).round()); |