| // 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. |
| /// The default behavior for all Objects is to return true if and only if this |
| /// and other are the same object. |
| /// ... |
| /// A MutableRectangle is only equal to another MutableRectangle with the same |
| /// coordinates. |
| /// @description Checks that this operator uses value comparison rather than |
| /// identity comparison. |
| /// @author kaigorodov |
| |
| import "dart:math"; |
| import "../../../Utils/expect.dart"; |
| |
| const List<num> values = const [ |
| 0, -1, 1, 10, -10, 100, -100, -1.7976931348623157e308, |
| -3.273390607896142E150, -4.503599627370497E15, -4.503599627370496E15, |
| -4.5035996273704955E15, -4.294967296000001E9, -4.294967296E9, |
| -4.2949672959999995E9, -6031769.5, -101.0, -100.00000000000001, -100.0, |
| -99.99999999999999, -99.0, -10.0, -1.0000000000000002, -1.0, |
| -.9999999999999999, -.7, -2.2250738585072014e-308, -4.9406564584124654e-324, |
| .0, 4.9406564584124654e-324, 2.2250738585072014e-308, .7, .9999999999999999, |
| 1.0, 1.0000000000000002, 10.0, 99.0, 99.99999999999999, 100.0, |
| 100.00000000000001, 101.0, 6031769.5, 4.2949672959999995E9, 4.294967296E9, |
| 4.294967296000001E9, 4.5035996273704955E15, 4.503599627370496E15, |
| 4.503599627370497E15, 3.273390607896142E150, 1.7976931348623157e308 |
| ]; |
| |
| Random rand = new Random(6031769); |
| |
| num randomVal() { |
| int k = rand.nextInt(values.length); |
| return values[k]; |
| } |
| |
| main() { |
| for (int i = 0; i < 1000; i++) { |
| num x = randomVal(); |
| num y = randomVal(); |
| num z = randomVal(); |
| num w = randomVal(); |
| MutableRectangle r1 = new MutableRectangle(x, y, z, w); |
| MutableRectangle r2 = new MutableRectangle(x, y, z, w); |
| Expect.isFalse(identical(r1, r2)); |
| Expect.isTrue(r1 == r2, "x=$x, y=$y, z=$z, w=$w"); |
| } |
| } |