Make Suite contain a single Group.

test/utils.dart

 // Copyright (c) 2015, 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 test.test.utils;
 
 import 'dart:async';
 import 'dart:collection';
 
 import 'package:test/src/backend/declarer.dart';
+import 'package:test/src/backend/group.dart';
+import 'package:test/src/backend/group_entry.dart';
 import 'package:test/src/backend/invoker.dart';
 import 'package:test/src/backend/live_test.dart';
 import 'package:test/src/backend/metadata.dart';
 import 'package:test/src/backend/state.dart';
 import 'package:test/src/backend/suite.dart';
 import 'package:test/src/runner/application_exception.dart';
 import 'package:test/src/runner/load_exception.dart';
 import 'package:test/src/util/remote_exception.dart';
 import 'package:test/test.dart';
 
@@ skipping 193 matching lines @@
   // Use [new Future] future to allow microtask events to finish. The [new
   // Future.value] constructor uses scheduleMicrotask itself and would therefore
   // not wait for microtask callbacks that are scheduled after invoking this
   // method.
   return new Future(() => pumpEventQueue(times - 1));
 }
 
 /// Returns a local [LiveTest] that runs [body].
 LiveTest createTest(body()) {
   var test = new LocalTest("test", new Metadata(), body);
-  var suite = new Suite([test]);
+  var suite = new Suite(new Group.root([test]));
   return test.load(suite);
 }
 
 /// Runs [body] as a test.
 ///
 /// Once it completes, returns the [LiveTest] used to run it.
 Future<LiveTest> runTestBody(body()) async {
   var liveTest = createTest(body);
   await liveTest.run();
   return liveTest;
@@ skipping 41 matching lines @@
   });
 
   await liveTest.run();
   expectTestPassed(liveTest);
   // Ensure that the outer test doesn't complete until the inner future
   // completes.
   return future;
 }
 
 /// Runs [body] with a declarer and returns the declared entries.
-List<SuiteEntry> declare(void body()) {
+List<GroupEntry> declare(void body()) {
   var declarer = new Declarer()..declare(body);
-  return declarer.build();
+  return declarer.build().entries;
 }