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| 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | |
| 2 // for details. All rights reserved. Use of this source code is governed by a | |
| 3 // BSD-style license that can be found in the LICENSE file. | |
| 4 | |
| 5 library point_test; | |
| 6 | |
| 7 import 'dart:math'; | |
| 8 import 'package:unittest/unittest.dart'; | |
| 9 | |
| 10 main() { | |
| 11 test('constructor', () { | |
| 12 var point = new Point(); | |
| 13 expect(point.x, 0); | |
| 14 expect(point.y, 0); | |
| 15 expect('$point', '(0, 0)'); | |
| 16 }); | |
| 17 | |
| 18 test('constructor X', () { | |
| 19 var point = new Point<int>(10); | |
| 20 expect(point.x, 10); | |
| 21 expect(point.y, 0); | |
| 22 expect('$point', '(10, 0)'); | |
| 23 }); | |
| 24 | |
| 25 test('constructor X Y', () { | |
| 26 var point = new Point<int>(10, 20); | |
| 27 expect(point.x, 10); | |
| 28 expect(point.y, 20); | |
| 29 expect('$point', '(10, 20)'); | |
| 30 }); | |
| 31 | |
| 32 test('constructor X Y double', () { | |
| 33 var point = new Point<double>(10.5, 20.897); | |
| 34 expect(point.x, 10.5); | |
| 35 expect(point.y, 20.897); | |
| 36 expect('$point', '(10.5, 20.897)'); | |
| 37 }); | |
| 38 | |
| 39 test('constructor X Y NaN', () { | |
| 40 var point = new Point(double.NAN, 1000); | |
| 41 expect(point.x.isNaN, isTrue); | |
| 42 expect(point.y, 1000); | |
| 43 expect('$point', '(NaN, 1000)'); | |
| 44 }); | |
| 45 | |
| 46 test('squaredDistanceTo', () { | |
| 47 var a = new Point(7, 11); | |
| 48 var b = new Point(3, -1); | |
| 49 expect(a.squaredDistanceTo(b), 160); | |
| 50 expect(b.squaredDistanceTo(a), 160); | |
| 51 }); | |
| 52 | |
| 53 test('distanceTo', () { | |
| 54 var a = new Point(-2, -3); | |
| 55 var b = new Point(2, 0); | |
| 56 expect(a.distanceTo(b), 5); | |
| 57 expect(b.distanceTo(a), 5); | |
| 58 }); | |
| 59 | |
| 60 test('subtract', () { | |
| 61 var a = new Point(5, 10); | |
| 62 var b = new Point(2, 50); | |
| 63 expect(a - b, new Point(3, -40)); | |
| 64 }); | |
| 65 | |
| 66 test('add', () { | |
| 67 var a = new Point(5, 10); | |
| 68 var b = new Point(2, 50); | |
| 69 expect(a + b, new Point(7, 60)); | |
| 70 }); | |
| 71 | |
| 72 test('ceil', () { | |
| 73 var a = new Point(5.1, 10.8); | |
| 74 expect(a.ceil(), new Point(6.0, 11.0)); | |
| 75 | |
| 76 var b = new Point(5, 10); | |
| 77 expect(b.ceil(), new Point(5, 10)); | |
| 78 }); | |
| 79 | |
| 80 test('floor', () { | |
| 81 var a = new Point(5.1, 10.8); | |
| 82 expect(a.floor(), new Point(5.0, 10.0)); | |
| 83 | |
| 84 var b = new Point(5, 10); | |
| 85 expect(b.floor(), new Point(5, 10)); | |
| 86 }); | |
| 87 | |
| 88 test('round', () { | |
| 89 var a = new Point(5.1, 10.8); | |
| 90 expect(a.round(), new Point(5.0, 11.0)); | |
| 91 | |
| 92 var b = new Point(5, 10); | |
| 93 expect(b.round(), new Point(5, 10)); | |
| 94 }); | |
| 95 | |
| 96 test('truncate', () { | |
| 97 var a = new Point(5.1, 10.8); | |
| 98 var b = a.truncate(); | |
| 99 expect(b, new Point(5, 10)); | |
| 100 expect(b.x is int, isTrue); | |
| 101 expect(b.y is int, isTrue); | |
| 102 }); | |
| 103 | |
| 104 test('hashCode', () { | |
| 105 var a = new Point(0, 1); | |
| 106 var b = new Point(0, 1); | |
| 107 expect(a.hashCode, b.hashCode); | |
| 108 | |
| 109 var c = new Point(1, 0); | |
| 110 expect(a.hashCode == c.hashCode, isFalse); | |
| 111 }); | |
| 112 | |
| 113 test('magnitute', () { | |
| 114 var a = new Point(5, 10); | |
| 115 var b = new Point(0, 0); | |
| 116 expect(a.magnitude, a.distanceTo(b)); | |
| 117 expect(b.magnitude, 0); | |
| 118 | |
| 119 var c = new Point(-5, -10); | |
| 120 expect(c.magnitude, a.distanceTo(b)); | |
| 121 }); | |
| 122 } | |
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Chromium Code Reviews
Issue 25785003:
"Reverting 28184" (Closed)
Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart