| // 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 MutableRectangle(T left, T top, T width, T height) |
| /// Create a mutable rectangle spanned by (left, top) and (left+width, |
| /// top+height). |
| /// @description Checks that coordinate properties of the created object |
| /// are equal to the constructor arguments. |
| /// @author kaigorodov |
| |
| import "dart:math"; |
| import "../../../Utils/expect.dart"; |
| |
| const List<num> values = const [ |
| 0, 1, 1, 10, 10, 100, 100, 1.7976931348623157e150, 3.273390607896142E15, |
| 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-150, 4.9406564584124654e-150, |
| .0, 4.9406564584124654e-150, 2.2250738585072014e-150, .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, 3.273390607896142E10, 1.7976931348623157e150 |
| ]; |
| |
| const EPS = 1.0e-10; |
| |
| Random rand = new Random(817); |
| |
| num randomVal() { |
| int k = rand.nextInt(values.length); |
| return values[k]; |
| } |
| |
| void check(num x, num y, num w, num h) { |
| MutableRectangle r = new MutableRectangle(x, y, w, h); |
| Expect.equals(x, r.left); |
| Expect.equals(y, r.top); |
| Expect.equals(h, r.height); |
| Expect.equals(w, r.width); |
| // in order not to do separate tests against right and bottom properties |
| Expect.equals(y + h, r.bottom); |
| Expect.equals(x + w, r.right); |
| // check that some properties are mutable |
| x += 2; y -= 1; w *= 2; h /= 2; |
| r.left = x; |
| r.top = y; |
| r.height = h; |
| r.width = w; |
| Expect.equals(x, r.left); |
| Expect.equals(y, r.top); |
| Expect.equals(h, r.height); |
| Expect.equals(w, r.width); |
| } |
| |
| main() { |
| for (int i = 0; i < 1000; i++) { |
| num x = randomVal(); |
| num y = randomVal(); |
| num w = randomVal(); |
| num h = randomVal(); |
| check(x, y, w, h); |
| } |
| } |