LibTest/core/Duration/isNegative_A01_t01.dart

// 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.

// @dart = 2.9

/// @assertion bool isNegative
/// Returns whether this Duration is negative.
/// @description Checks that this property returns correct value
/// @author sgrekhov@unipro.ru

import "../../../Utils/expect.dart";

main() {
  Expect.isTrue(new Duration(days: -1).isNegative);
  Expect.isTrue(new Duration(microseconds: -1).isNegative);
  Expect.isFalse(Duration.zero.isNegative);
  Expect.isFalse(new Duration(days: 1).isNegative);
  Expect.isFalse(new Duration(microseconds: 1).isNegative);
}