Harry Terkelsen
382996f41c
BUG= R=rnystrom@google.com Review URL: https://codereview.chromium.org/1967773005 .
91 lines
2.1 KiB
Dart
91 lines
2.1 KiB
Dart
// 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:math';
|
|
import 'package:unittest/unittest.dart';
|
|
|
|
main() {
|
|
test('constructor', () {
|
|
var point = new Point(0, 0);
|
|
expect(point.x, 0);
|
|
expect(point.y, 0);
|
|
expect('$point', 'Point(0, 0)');
|
|
});
|
|
|
|
test('constructor X', () {
|
|
var point = new Point<int>(10, 0);
|
|
expect(point.x, 10);
|
|
expect(point.y, 0);
|
|
expect('$point', 'Point(10, 0)');
|
|
});
|
|
|
|
test('constructor X Y', () {
|
|
var point = new Point<int>(10, 20);
|
|
expect(point.x, 10);
|
|
expect(point.y, 20);
|
|
expect('$point', 'Point(10, 20)');
|
|
});
|
|
|
|
test('constructor X Y double', () {
|
|
var point = new Point<double>(10.5, 20.897);
|
|
expect(point.x, 10.5);
|
|
expect(point.y, 20.897);
|
|
expect('$point', 'Point(10.5, 20.897)');
|
|
});
|
|
|
|
test('constructor X Y NaN', () {
|
|
var point = new Point(double.NAN, 1000);
|
|
expect(point.x, isNaN);
|
|
expect(point.y, 1000);
|
|
expect('$point', '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('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));
|
|
});
|
|
}
|