blob: 2b3c80bb1c6606c599c61b9a09030cca5fea8f3a [file] [log] [blame]
// Copyright (c) 2016, 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.
/// @assertion Duration operator unary-()
/// Returns a new Duration representing this Duration negated.
/// The returned Duration has the same length as this one, but will have the
/// opposite sign of this one.
/// @description Checks that this operator returns a new Duration representing
/// this Duration negated.
/// @author
import "../../../Utils/expect.dart";
main() {
Duration d1 = new Duration(days: 1, microseconds: 1);
Duration d2 = -d1;
Expect.equals(d1.inMicroseconds, d2.inMicroseconds.abs());
Duration d3 = new Duration(days: -1, microseconds: 1);
Duration d4 = -d3;
Expect.equals(d3.inMicroseconds.abs(), d4.inMicroseconds);