tests/corelib/int_round_test.dart

// 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.

import 'package:expect/expect.dart';

main() {
  const int big = 0x123456789AB0000 + 0xCDEF; // truncating arithmetic on web.

  Expect.equals(0, 0.round());
  Expect.equals(1, 1.round());
  Expect.equals(0x1234, 0x1234.round());
  Expect.equals(0x12345678, 0x12345678.round());
  Expect.equals(0x123456789AB, 0x123456789AB.round());
  Expect.equals(big, big.round());
  Expect.equals(-1, (-1).round());
  Expect.equals(-0x1234, (-0x1234).round());
  Expect.equals(-0x12345678, (-0x12345678).round());
  Expect.equals(-0x123456789AB, (-0x123456789AB).round());
  Expect.equals(-big, (-big).round());

  Expect.isTrue(0.round() is int);
  Expect.isTrue(1.round() is int);
  Expect.isTrue(0x1234.round() is int);
  Expect.isTrue(0x12345678.round() is int);
  Expect.isTrue(0x123456789AB.round() is int);
  Expect.isTrue(big.round() is int);
  Expect.isTrue((-1).round() is int);
  Expect.isTrue((-0x1234).round() is int);
  Expect.isTrue((-0x12345678).round() is int);
  Expect.isTrue((-0x123456789AB).round() is int);
  Expect.isTrue((-big).round() is int);
}