| // 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 double magnitude |
| /// Get the straight line (Euclidean) distance between the origin (0, 0) and |
| /// this point. |
| /// @description Checks that the value of the property equals to the Euclidean |
| /// distance. |
| /// @author kaigorodov |
| |
| import "dart:math"; |
| import "../../../Utils/expect.dart"; |
| |
| const EPS = 1.0e-10; |
| |
| void check(num x, num y) { |
| Point point = new Point(x, y); |
| double dist = sqrt(x * x + y * y); |
| Expect.approxEquals(dist, point.magnitude, EPS); |
| } |
| |
| main() { |
| check(0, 0); |
| check(-1.0, 0); |
| check(0, -1); |
| check(1.0, 1); |
| check(e, -pi); |
| } |