Adding Point & Rect primitives

tests/html/point_test.dart

Index: tests/html/point_test.dart
diff --git a/tests/html/point_test.dart b/tests/html/point_test.dart
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+// 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 'package:unittest/unittest.dart';
+import 'package:unittest/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);
+  });
+}