| /* |
| * 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 Point<T> operator *(num factor) |
| * Scale this point by factor as if it were a vector. |
| * @description checks that the returned value equals to the scaled vector. |
| * Coordinate values are not Inf or NaN. |
| * @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(503599627); |
| |
| num randomVal() { |
| int k = rand.nextInt(values.length); |
| return values[k]; |
| } |
| |
| main() { |
| for(int i = 0; i < 1000; i++) { |
| num x1 = randomVal(); |
| num y1 = randomVal(); |
| num n = randomVal(); |
| Point point=new Point(x1, y1) * n; |
| Expect.equals(x1*n, point.x, "x1=$x1, n=$n"); |
| Expect.equals(y1*n, point.y, "y1=$y1, n=$n"); |
| } |
| } |