Start cleaning up the HTML tests.

pkg/dev_compiler/test/codegen/lib/html/js_util_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.
 
 @JS()
 library js_native_test;
 
 import 'dart:async';
 import 'dart:html';
 import 'dart:typed_data' show ByteBuffer, Int32List;
 import 'dart:indexed_db' show IdbFactory, KeyRange;
 
 import 'package:js/js.dart';
 import 'package:js/js_util.dart' as js_util;
-
-import 'package:unittest/unittest.dart';
-import 'package:unittest/html_individual_config.dart';
+import 'package:minitest/minitest.dart';
 
 _injectJs() {
   final script = new ScriptElement();
   script.type = 'text/javascript';
   script.innerHtml = r"""
 var x = 42;
 
 var _x = 123;
 
 var myArray = ["value1"];
@@ skipping 79 matching lines @@
 
 @JS("Object.prototype.hasOwnProperty")
 external get _hasOwnProperty;
 
 bool hasOwnProperty(o, String name) {
   return js_util.callMethod(_hasOwnProperty, 'call', [o, name]);
 }
 
 main() {
   _injectJs();
-  useHtmlIndividualConfiguration();
 
   group('js_util.jsify()', () {
     test('convert a List', () {
       final list = [1, 2, 3, 4, 5, 6, 7, 8];
       var array = js_util.jsify(list);
       expect(array is List, isTrue);
       expect(identical(array, list), isFalse);
       expect(array.length, equals(list.length));
       for (var i = 0; i < list.length; i++) {
         expect(array[i], equals(list[i]));
@@ skipping 13 matching lines @@
     test('convert a Map', () {
       var map = {'a': 1, 'b': 2, 'c': 3};
       var jsMap = js_util.jsify(map);
       expect(jsMap is! List, isTrue);
       for (var key in map.keys) {
         expect(checkMap(jsMap, key, map[key]), isTrue);
       }
     });
 
     test('deep convert a complex object', () {
-      final object = {
+      dynamic object = {
         'a': [
           1,
           [2, 3]
         ],
         'b': {'c': 3, 'd': new Foo(42)},
         'e': null
       };
       var jsObject = js_util.jsify(object);
       expect(js_util.getProperty(jsObject, 'a')[0], equals(object['a'][0]));
       expect(
           js_util.getProperty(jsObject, 'a')[1][0], equals(object['a'][1][0]));
       expect(
           js_util.getProperty(jsObject, 'a')[1][1], equals(object['a'][1][1]));
       expect(js_util.getProperty(js_util.getProperty(jsObject, 'b'), 'c'),
           equals(object['b']['c']));
       expect(js_util.getProperty(js_util.getProperty(jsObject, 'b'), 'd'),
           equals(object['b']['d']));
       expect(
           js_util.callMethod(
               js_util.getProperty(js_util.getProperty(jsObject, 'b'), 'd'),
               'bar', []),
           equals(42));
       expect(js_util.getProperty(jsObject, 'e'), isNull);
     });
 
     test('throws if object is not a Map or Iterable', () {
-      expect(() => js_util.jsify('a'),
-          throwsA(new isInstanceOf<ArgumentError>()));
+      expect(() => js_util.jsify('a'), throwsArgumentError);
     });
   });
 
   group('js_util.newObject', () {
     test('create', () {
       expect(identical(js_util.newObject(), js_util.newObject()), isFalse);
     });
 
     test('callMethod', () {
       var o = js_util.newObject();
@@ skipping 90 matching lines @@
       expect(identical(l.a, list), isTrue);
       l.JS$class = 42;
       expect(l.JS$class, equals(42));
       js_util.setProperty(l, 'class', 100);
       expect(l.JS$class, equals(100));
     });
   });
 
   group('callMethod', () {
     test('html object', () {
-      var canvas = new Element.tag('canvas');
+      var canvas = new CanvasElement();
       expect(
           identical(canvas.getContext('2d'),
               js_util.callMethod(canvas, 'getContext', ['2d'])),
           isTrue);
     });
 
     test('typed object', () {
       var f = new Foo(42);
       expect(js_util.callMethod(f, 'bar', []), equals(42));
     });
@@ skipping 37 matching lines @@
       expect(textNode is Text, isTrue);
       expect(textNode.text, equals('foo'));
     });
 
     test('typed object', () {
       Foo f = js_util.callConstructor(JSFooType, [42]);
       expect(f.a, equals(42));
     });
   });
 }