Start cleaning up the HTML tests.

pkg/dev_compiler/test/codegen/lib/html/documentfragment_test.dart

Index: pkg/dev_compiler/test/codegen/lib/html/documentfragment_test.dart
diff --git a/pkg/dev_compiler/test/codegen/lib/html/documentfragment_test.dart b/pkg/dev_compiler/test/codegen/lib/html/documentfragment_test.dart
index b09c04d6f08ef53432631096bc1d55416188dd63..804cd9bd800ee1d6ff7ff6aab47f819b182136af 100644
--- a/pkg/dev_compiler/test/codegen/lib/html/documentfragment_test.dart
+++ b/pkg/dev_compiler/test/codegen/lib/html/documentfragment_test.dart
@@ -2,15 +2,13 @@
 // 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 DocumentFragmentTest;
-import 'package:unittest/unittest.dart';
-import 'package:unittest/html_config.dart';
-import 'util.dart';
 import 'dart:html';
 
-main() {
-  useHtmlConfiguration();
+import 'package:minitest/minitest.dart';
 
+import 'util.dart';
+
+main() {
   var isAnchorElement =
       predicate((x) => x is AnchorElement, 'is an AnchorElement');
 
@@ -42,7 +40,7 @@ main() {
     expect(style.cssText, equals(''));
     expect(style.getPropertyPriority('color'), equals(''));
     expect(style.item(0), equals(''));
-    expect(style.length, isZero);
+    expect(style.length, equals(0));
     // TODO(jacobr): these checks throw UnimplementedErrors in dartium.
     // expect(style.parentRule, isNull);
     // expect(style.getPropertyCssValue('color'), isNull);
@@ -81,8 +79,8 @@ main() {
   });
 
   group('children', () {
-    var fragment;
-    var children;
+    DocumentFragment fragment;
+    List<Element> children;
 
     init() {
       fragment = new DocumentFragment();
@@ -102,36 +100,36 @@ main() {
     test('filters out non-element nodes', () {
       init();
       expect(_nodeStrings(fragment.nodes),
-          orderedEquals(["1", "A", "B", "2", "I", "3", "U"]));
+          equals(["1", "A", "B", "2", "I", "3", "U"]));
       expect(_nodeStrings(children),
-          orderedEquals(["A", "B", "I", "U"]));
+          equals(["A", "B", "I", "U"]));
     });
 
     test('only indexes children, not other nodes', () {
       init();
       children[1] = new Element.tag("BR");
       expect(_nodeStrings(fragment.nodes),
-          orderedEquals(["1", "A", "BR", "2", "I", "3", "U"]));
+          equals(["1", "A", "BR", "2", "I", "3", "U"]));
       expect(_nodeStrings(children),
-          orderedEquals(["A", "BR", "I", "U"]));
+          equals(["A", "BR", "I", "U"]));
     });
 
     test('adds to both children and nodes', () {
       init();
       children.add(new Element.tag("UL"));
       expect(_nodeStrings(fragment.nodes),
-          orderedEquals(["1", "A", "B", "2", "I", "3", "U", "UL"]));
+          equals(["1", "A", "B", "2", "I", "3", "U", "UL"]));
       expect(_nodeStrings(children),
-          orderedEquals(["A", "B", "I", "U", "UL"]));
+          equals(["A", "B", "I", "U", "UL"]));
     });
 
     test('removes only children, from both children and nodes', () {
       init();
       expect(children.removeLast().tagName, equals('U'));
       expect(_nodeStrings(fragment.nodes),
-          orderedEquals(["1", "A", "B", "2", "I", "3"]));
+          equals(["1", "A", "B", "2", "I", "3"]));
       expect(_nodeStrings(children),
-          orderedEquals(["A", "B", "I"]));
+          equals(["A", "B", "I"]));
 
       expect(children.removeLast().tagName, "I");
       expect(_nodeStrings(fragment.nodes),