LibTest/core/int/isNegative_A01_t01.dart

// 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 Returns true if the value represented by this int object is
/// negative.
/// @description Checks that this method returns correct value.
/// @author vasya

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

main() {
  Expect.isFalse(0.isNegative);
  
  for (var i = -100; i < 0; i++) {
    Expect.isTrue(i.isNegative);
  }
  
  for (var i = 0; i <= 100; i++){
    Expect.isFalse(i.isNegative);
  }
  Expect.isFalse(9007199254740991.isNegative);
  Expect.isTrue((-9007199254740991).isNegative);
}