LibTest/core/DateTime/microsecondsSinceEpoch_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.

/// @assertion int microsecondsSinceEpoch
/// The number of microseconds since the "Unix epoch" 1970-01-01T00:00:00Z (UTC).
///
/// This value is independent of the time zone.
///
/// This value is at most 8,640,000,000,000,000,000us (100,000,000 days) from
/// the Unix epoch. In other words:
/// microsecondsSinceEpoch.abs() <= 8640000000000000000.
///
/// Note that this value does not fit into 53 bits (the size of a IEEE double).
/// A JavaScript number is not able to hold this value.
/// @description Checks that the getter returns correct values.
/// @author sgrekhov@unipro.ru

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

check(us) {
  Expect.equals(us, new DateTime.fromMicrosecondsSinceEpoch(us,
      isUtc: true).microsecondsSinceEpoch);
  Expect.equals(us, new DateTime.fromMicrosecondsSinceEpoch(us,
      isUtc: false).microsecondsSinceEpoch);
}

main() {
  check(5);
  check(0);
  check(1);
  check(-1);
  check(-100);
  check(6031769);
  check(60317690009);
  check(8640000000000000);
  check(-8640000000000000);
}