LibTest/math/Rectangle/intersects_A01_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 intersects(Rectangle<num> other)
/// Returns true if this intersects other.
/// @description Checks the predicate for some predefined data.
/// @author kaigorodov

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

void check(Rectangle r1, Rectangle r2, bool expected) {
  bool actual1 = r1.intersects(r2);
  Expect.equals(expected, actual1, "r1=$r1, r2=$r2, expected=$expected");
  bool actual2 = r2.intersects(r1);
  Expect.equals(actual1, actual2, "r1=$r1, r2=$r2");
}

main() {
  Rectangle r = new Rectangle(0, 0, 1, 1);
  check(r, new Rectangle(0, 0, 1, 1), true);
  check(r, new Rectangle(0.5, 0, 0.5, 1), true);
  check(r, new Rectangle(-10, -5, 1, 1.5), false);
  check(r, new Rectangle(0, 0, 1.1, 1), true);
  check(r, new Rectangle(1.1, 1.1, 2, 2), false);
  check(r, new Rectangle(1.05, 1.05, 0.1, 0.1), false);
}