tests/corelib_2/int_truncate_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.

// @dart = 2.9

import 'package:expect/expect.dart';

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

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

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