| // Copyright (c) 2013, 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. |
| |
| library point_test; |
| |
| import 'dart:html'; |
| import '../../pkg/unittest/lib/unittest.dart'; |
| import '../../pkg/unittest/lib/html_config.dart'; |
| |
| main() { |
| useHtmlConfiguration(); |
| |
| test('constructor', () { |
| var point = new Point(); |
| expect(point.x, 0); |
| expect(point.y, 0); |
| expect('$point', '(0, 0)'); |
| }); |
| |
| test('constructor X', () { |
| var point = new Point(10); |
| expect(point.x, 10); |
| expect(point.y, 0); |
| expect('$point', '(10, 0)'); |
| }); |
| |
| test('constructor X Y', () { |
| var point = new Point(10, 20); |
| expect(point.x, 10); |
| expect(point.y, 20); |
| expect('$point', '(10, 20)'); |
| }); |
| |
| test('constructor X Y double', () { |
| var point = new Point(10.5, 20.897); |
| expect(point.x, 10.5); |
| expect(point.y, 20.897); |
| expect('$point', '(10.5, 20.897)'); |
| }); |
| |
| test('constructor X Y NaN', () { |
| var point = new Point(double.NAN, 1000); |
| expect(point.x.isNaN, isTrue); |
| expect(point.y, 1000); |
| expect('$point', '(NaN, 1000)'); |
| }); |
| |
| test('squaredDistanceTo', () { |
| var a = new Point(7, 11); |
| var b = new Point(3, -1); |
| expect(a.squaredDistanceTo(b), 160); |
| expect(b.squaredDistanceTo(a), 160); |
| }); |
| |
| test('distanceTo', () { |
| var a = new Point(-2, -3); |
| var b = new Point(2, 0); |
| expect(a.distanceTo(b), 5); |
| expect(b.distanceTo(a), 5); |
| }); |
| |
| test('subtract', () { |
| var a = new Point(5, 10); |
| var b = new Point(2, 50); |
| expect(a - b, new Point(3, -40)); |
| }); |
| |
| test('add', () { |
| var a = new Point(5, 10); |
| var b = new Point(2, 50); |
| expect(a + b, new Point(7, 60)); |
| }); |
| |
| test('ceil', () { |
| var a = new Point(5.1, 10.8); |
| expect(a.ceil(), new Point(6.0, 11.0)); |
| |
| var b = new Point(5, 10); |
| expect(b.ceil(), new Point(5, 10)); |
| }); |
| |
| test('floor', () { |
| var a = new Point(5.1, 10.8); |
| expect(a.floor(), new Point(5.0, 10.0)); |
| |
| var b = new Point(5, 10); |
| expect(b.floor(), new Point(5, 10)); |
| }); |
| |
| test('round', () { |
| var a = new Point(5.1, 10.8); |
| expect(a.round(), new Point(5.0, 11.0)); |
| |
| var b = new Point(5, 10); |
| expect(b.round(), new Point(5, 10)); |
| }); |
| |
| test('toInt', () { |
| var a = new Point(5.1, 10.8); |
| var b = a.toInt(); |
| expect(b, new Point(5, 10)); |
| expect(b.x is int, isTrue); |
| expect(b.y is int, isTrue); |
| }); |
| |
| test('hashCode', () { |
| var a = new Point(0, 1); |
| var b = new Point(0, 1); |
| expect(a.hashCode, b.hashCode); |
| |
| var c = new Point(1, 0); |
| expect(a.hashCode == c.hashCode, isFalse); |
| }); |
| |
| test('magnitute', () { |
| var a = new Point(5, 10); |
| var b = new Point(0, 0); |
| expect(a.magnitude, a.distanceTo(b)); |
| expect(b.magnitude, 0); |
| |
| var c = new Point(-5, -10); |
| expect(c.magnitude, a.distanceTo(b)); |
| }); |
| } |