LibTest/math/MutableRectangle/operator_equality_A03_t01.dart

// Copyright (c) 2014, 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 operator ==(other)
/// The equality operator.
/// ...
/// Reflexive: For all objects o, o == o must be true.
/// @description Checks that MutableRectangle with a coordinate equal to NaN is
/// not equal to itself.
/// @author kaigorodov

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

main() {
  MutableRectangle point = new MutableRectangle(0, double.nan, 0, 0);
  Expect.isFalse(point == point);
  point = new MutableRectangle(double.nan, 0, 0, 0);
  Expect.isFalse(point == point);
  point = new MutableRectangle(double.nan, double.nan, 0, 0);
  Expect.isFalse(point == point);
  point = new MutableRectangle(double.infinity, 0, double.negativeInfinity, 0);
  Expect.isTrue(point == point);
  point = new MutableRectangle(double.negativeInfinity, 0, double.infinity, 0);
  Expect.isFalse(point == point);
  point = new MutableRectangle(0, double.infinity, 0, double.negativeInfinity);
  Expect.isTrue(point == point);
  point = new MutableRectangle(0, double.negativeInfinity, 0, double.infinity);
  Expect.isFalse(point == point);
}