Exposing Point & Rect types

tests/html/rect_test.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 rect_test;
 
 import 'dart:html';
 import 'package:unittest/unittest.dart';
 import 'package:unittest/html_config.dart';
 
 main() {
   useHtmlConfiguration();
 
   Rect createRect(List<num> a) {
     return a != null ? new Rect(a[0], a[1], a[2] - a[0], a[3] - a[1]) : null;
   }
 
+  Rect createClientRect(List<num> a) {
+    var element = new DivElement();
+    element.style.left = '${a[0]}px';
+    element.style.top = '${a[1]}px';
+    element.style.width = '${a[2] - a[0]}px';
+    element.style.height = '${a[3] - a[1]}px';
+    element.style.position = 'absolute';
+    document.body.append(element);
+    return element.getBoundingClientRect();
+  }
+
   test('construction', () {
     var r0 = new Rect(10, 20, 30, 40);
     expect(r0.toString(), '(10, 20, 30, 40)');
     expect(r0.right, 40);
     expect(r0.bottom, 60);
 
     var r1 = new Rect.fromPoints(r0.topLeft, r0.bottomRight);
     expect(r1, r0);
 
     var r2 = new Rect.fromPoints(r0.bottomRight, r0.topLeft);
     expect(r2, r0);
   });
 
   test('intersection', () {
     var tests = [
         [[10, 10, 20, 20], [15, 15, 25, 25], [15, 15, 20, 20]],
         [[10, 10, 20, 20], [20, 0, 30, 10], [20, 10, 20, 10]],
         [[0, 0, 1, 1], [10, 11, 12, 13], null],
         [[11, 12, 98, 99], [22, 23, 34, 35], [22, 23, 34, 35]]];
 
     for (var test in tests) {
       var r0 = createRect(test[0]);
       var r1 = createRect(test[1]);
       var expected = createRect(test[2]);
 
       expect(r0.intersection(r1), expected);
       expect(r1.intersection(r0), expected);
+
+      var r2 = createClientRect(test[0]);
+      var r3 = createClientRect(test[1]);
+
+      expect(r2.intersection(r3), expected);
+      expect(r3.intersection(r2), expected);
     }
   });
 
   test('intersects', () {
     var r0 = new Rect(10, 10, 20, 20);
     var r1 = new Rect(15, 15, 25, 25);
     var r2 = new Rect(0, 0, 1, 1);
 
     expect(r0.intersects(r1), isTrue);
     expect(r1.intersects(r0), isTrue);
 
     expect(r0.intersects(r2), isFalse);
     expect(r2.intersects(r0), isFalse);
   });
 
   test('union', () {
     var tests = [
         [[10, 10, 20, 20], [15, 15, 25, 25], [10, 10, 25, 25]],
         [[10, 10, 20, 20], [20, 0, 30, 10], [10, 0, 30, 20]],
         [[0, 0, 1, 1], [10, 11, 12, 13], [0, 0, 12, 13]],
         [[11, 12, 98, 99], [22, 23, 34, 35], [11, 12, 98, 99]]];
 
     for (var test in tests) {
       var r0 = createRect(test[0]);
       var r1 = createRect(test[1]);
       var expected = createRect(test[2]);
 
       expect(r0.union(r1), expected);
       expect(r1.union(r0), expected);
+
+      var r2 = createClientRect(test[0]);
+      var r3 = createClientRect(test[1]);
+
+      expect(r2.union(r3), expected);
+      expect(r3.union(r2), expected);
     }
   });
 
   test('containsRect', () {
     var r = new Rect(-10, 0, 20, 10);
     expect(r.containsRect(r), isTrue);
 
     expect(r.containsRect(
         new Rect(double.NAN, double.NAN, double.NAN, double.NAN)), isFalse);
 
@@ skipping 57 matching lines @@
     var rect = new Rect(11.4, 26.6, 17.8, 9.2);
     var b = rect.toInt();
     expect(b, new Rect(11, 26, 17, 9));
 
     expect(b.left is int, isTrue);
     expect(b.top is int, isTrue);
     expect(b.width is int, isTrue);
     expect(b.height is int, isTrue);
   });
 }