Start cleaning up the HTML tests.

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

Index: pkg/dev_compiler/test/codegen/lib/html/cache_test.dart
diff --git a/pkg/dev_compiler/test/codegen/lib/html/cache_test.dart b/pkg/dev_compiler/test/codegen/lib/html/cache_test.dart
index d81770f23bfae73f70a61c45421771deb786cef3..0f31997e323a4da3ea00f232ed6730a56f37926b 100644
--- a/pkg/dev_compiler/test/codegen/lib/html/cache_test.dart
+++ b/pkg/dev_compiler/test/codegen/lib/html/cache_test.dart
@@ -1,14 +1,11 @@
-library CacheTest;
-import 'package:unittest/unittest.dart';
-import 'package:unittest/html_individual_config.dart';
 import 'dart:html';
 
-main() {
-  useHtmlIndividualConfiguration();
+import 'package:minitest/minitest.dart';
 
+main() {
   group('supported', () {
     test('supported', () {
-      expect(ApplicationCache.supported, true);
+      expect(ApplicationCache.supported, isTrue);
     });
   });
 
@@ -19,10 +16,8 @@ main() {
         ApplicationCache appCache = window.applicationCache;
         expect(cacheStatusToString(appCache.status), "UNCACHED");
       }, expectation);
-
     });
   });
-
 }
 
 String cacheStatusToString(int status) {