// Copyright (c) 2011, 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 bool isBefore(DateTime other)
/// Returns true if this occurs before other.
/// The comparison is independent of whether the time is in UTC or in the local
/// time zone.
/// @description Checks that true is returned only if this occurs before other.
/// @author kaigorodov


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

checkTrue(t1, t2) {
  Expect.isTrue((new DateTime.fromMillisecondsSinceEpoch(t1, isUtc: true))
    .isBefore(new DateTime.fromMillisecondsSinceEpoch(t2, isUtc: true)));

  Expect.isTrue((new DateTime.fromMillisecondsSinceEpoch(t1, isUtc: false))
    .isBefore(new DateTime.fromMillisecondsSinceEpoch(t2, isUtc: true)));

  Expect.isTrue((new DateTime.fromMillisecondsSinceEpoch(t1, isUtc: true))
    .isBefore(new DateTime.fromMillisecondsSinceEpoch(t2, isUtc: false)));
}

checkFalse(t1, t2) {
  Expect.isFalse((new DateTime.fromMillisecondsSinceEpoch(t1, isUtc: true))
    .isBefore(new DateTime.fromMillisecondsSinceEpoch(t2, isUtc: true)));

  Expect.isFalse((new DateTime.fromMillisecondsSinceEpoch(t1, isUtc: false))
    .isBefore(new DateTime.fromMillisecondsSinceEpoch(t2, isUtc: true)));

  Expect.isFalse((new DateTime.fromMillisecondsSinceEpoch(t1, isUtc: false))
    .isBefore(new DateTime.fromMillisecondsSinceEpoch(t2, isUtc: false)));
}

main() {
  checkTrue(0, 1);
  checkTrue(603176900008, 603176900009);
  checkTrue(100, 603176900009);
  checkTrue(-100, 100);

  checkFalse(0, 0);
  checkFalse(1, 1);
  checkFalse(6031769, 6031769);
  checkFalse(603176900, 603176900);
  checkFalse(603176900009, 603176900009);
  checkFalse(1, 0);
  checkFalse(603176900009, 603176900008);
  checkFalse(603176900009, 100);
  checkFalse(100, -100);
}