efortuna@google.com
b447e86bd8
BUG= R=floitsch@google.com Review URL: https://codereview.chromium.org//64373004 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@30061 260f80e4-7a28-3924-810f-c04153c831b5
91 lines
2.2 KiB
Dart
91 lines
2.2 KiB
Dart
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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library point_test;
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import 'dart:math';
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import 'package:unittest/unittest.dart';
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main() {
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test('constructor', () {
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var point = new Point(0, 0);
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expect(point.x, 0);
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expect(point.y, 0);
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expect('$point', 'Point(0, 0)');
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});
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test('constructor X', () {
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var point = new Point<int>(10, 0);
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expect(point.x, 10);
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expect(point.y, 0);
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expect('$point', 'Point(10, 0)');
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});
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test('constructor X Y', () {
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var point = new Point<int>(10, 20);
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expect(point.x, 10);
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expect(point.y, 20);
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expect('$point', 'Point(10, 20)');
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});
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test('constructor X Y double', () {
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var point = new Point<double>(10.5, 20.897);
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expect(point.x, 10.5);
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expect(point.y, 20.897);
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expect('$point', 'Point(10.5, 20.897)');
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});
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test('constructor X Y NaN', () {
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var point = new Point(double.NAN, 1000);
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expect(point.x.isNaN, isTrue);
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expect(point.y, 1000);
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expect('$point', 'Point(NaN, 1000)');
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});
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test('squaredDistanceTo', () {
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var a = new Point(7, 11);
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var b = new Point(3, -1);
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expect(a.squaredDistanceTo(b), 160);
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expect(b.squaredDistanceTo(a), 160);
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});
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test('distanceTo', () {
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var a = new Point(-2, -3);
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var b = new Point(2, 0);
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expect(a.distanceTo(b), 5);
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expect(b.distanceTo(a), 5);
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});
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test('subtract', () {
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var a = new Point(5, 10);
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var b = new Point(2, 50);
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expect(a - b, new Point(3, -40));
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});
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test('add', () {
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var a = new Point(5, 10);
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var b = new Point(2, 50);
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expect(a + b, new Point(7, 60));
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});
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test('hashCode', () {
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var a = new Point(0, 1);
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var b = new Point(0, 1);
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expect(a.hashCode, b.hashCode);
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var c = new Point(1, 0);
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expect(a.hashCode == c.hashCode, isFalse);
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});
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test('magnitute', () {
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var a = new Point(5, 10);
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var b = new Point(0, 0);
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expect(a.magnitude, a.distanceTo(b));
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expect(b.magnitude, 0);
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var c = new Point(-5, -10);
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expect(c.magnitude, a.distanceTo(b));
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});
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}
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