LibTest/math/Rectangle/Rectangle_A04_t01.dart

// Copyright (c) 2017, 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 Rectangle(T left, T top, T width, T height)
/// ...
/// If width and height are zero, the "rectangle" comprises only the single
/// point (left, top).
/// @description Checks that if width and height are zero, the "rectangle"
/// comprises only the single point (left, top).
/// @author ngl@unipro.ru


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

main() {
  Rectangle r = new Rectangle(2, 1, 0, 0);
  var step = .1;

  Expect.isTrue(r.containsPoint(new Point(r.left, r.top)));

  Expect.isFalse(r.containsPoint(new Point(r.left - step, r.top)));
  Expect.isFalse(r.containsPoint(new Point(r.left + r.width + step, r.top)));
  Expect.isFalse(r.containsPoint(new Point(r.left, r.top - step)));
  Expect.isFalse(r.containsPoint(new Point(r.left, r.top + r.height + step)));

  Expect.isFalse(r.containsPoint(new Point(r.left - step, r.top + r.height)));
  Expect.isFalse(
      r.containsPoint(new Point(r.left + r.width + step, r.top + r.height)));
  Expect.isFalse(r.containsPoint(new Point(r.left + r.width, r.top - step)));
  Expect.isFalse(
      r.containsPoint(new Point(r.left + r.width, r.top + r.height + step)));
}