Start cleaning up the HTML tests.

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

Index: pkg/dev_compiler/test/codegen/lib/html/canvas_pixel_array_type_alias_test.dart
diff --git a/pkg/dev_compiler/test/codegen/lib/html/canvas_pixel_array_type_alias_test.dart b/pkg/dev_compiler/test/codegen/lib/html/canvas_pixel_array_type_alias_test.dart
index 4dd6b407825f0e081bf0bc6b8e83e2283d71291e..9e9111e4f74e83476f14835b4d3ba34e4c310030 100644
--- a/pkg/dev_compiler/test/codegen/lib/html/canvas_pixel_array_type_alias_test.dart
+++ b/pkg/dev_compiler/test/codegen/lib/html/canvas_pixel_array_type_alias_test.dart
@@ -2,12 +2,11 @@
 // 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 CanvasTest;
-import 'package:unittest/unittest.dart';
-import 'package:unittest/html_individual_config.dart';
 import 'dart:html';
 import 'dart:typed_data';
 
+import 'package:minitest/minitest.dart';
+
 // We have aliased the legacy type CanvasPixelArray with the new type
 // Uint8ClampedArray by mapping the CanvasPixelArray type tag to
 // Uint8ClampedArray.  It is not a perfect match since CanvasPixelArray is
@@ -16,9 +15,6 @@ import 'dart:typed_data';
 var inscrutable;
 
 main() {
-
-  useHtmlIndividualConfiguration();
-
   inscrutable = (x) => x;
 
   int width = 100;
@@ -39,7 +35,7 @@ main() {
       expect(inscrutable(data) is List<int>, isTrue,
           reason: 'canvas array type');
 
-      expect(data, hasLength(40000));
+      expect(data.length, 40000);
       checkPixel(data, 0, [0, 0, 0, 0]);
       checkPixel(data, width * height - 1, [0, 0, 0, 0]);