Make Suite contain a single Group.

test/runner/loader_test.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.
 
 @TestOn("vm")
 
 import 'dart:io';
 
 import 'package:path/path.dart' as p;
 import 'package:test/src/backend/state.dart';
@@ skipping 46 matching lines @@
       var loadSuite = suites.first;
       suite = await loadSuite.getSuite();
     });
 
     test("returns a suite with the file path and platform", () {
       expect(suite.path, equals(p.join(_sandbox, 'a_test.dart')));
       expect(suite.platform, equals(TestPlatform.vm));
     });
 
     test("returns entries with the correct names and platforms", () {
-      expect(suite.entries, hasLength(3));
-      expect(suite.entries[0].name, equals("success"));
-      expect(suite.entries[1].name, equals("failure"));
-      expect(suite.entries[2].name, equals("error"));
+      expect(suite.group.entries, hasLength(3));
+      expect(suite.group.entries[0].name, equals("success"));
+      expect(suite.group.entries[1].name, equals("failure"));
+      expect(suite.group.entries[2].name, equals("error"));
     });
 
     test("can load and run a successful test", () {
-      var liveTest = suite.entries[0].load(suite);
+      var liveTest = suite.group.entries[0].load(suite);
 
       expectStates(liveTest, [
         const State(Status.running, Result.success),
         const State(Status.complete, Result.success)
       ]);
       expectErrors(liveTest, []);
 
       return liveTest.run().whenComplete(() => liveTest.close());
     });
 
     test("can load and run a failing test", () {
-      var liveTest = suite.entries[1].load(suite);
+      var liveTest = suite.group.entries[1].load(suite);
       expectSingleFailure(liveTest);
       return liveTest.run().whenComplete(() => liveTest.close());
     });
   });
 
   group(".loadDir()", () {
     test("ignores non-Dart files", () {
       new File(p.join(_sandbox, 'a_test.txt')).writeAsStringSync(_tests);
       expect(_loader.loadDir(_sandbox).toList(), completion(isEmpty));
     });
@@ skipping 30 matching lines @@
       test("gives those suites the correct paths", () {
         expect(suites.map((suite) => suite.path), unorderedEquals([
           p.join(_sandbox, 'a_test.dart'),
           p.join(_sandbox, 'another_test.dart'),
           p.join(_sandbox, 'dir', 'sub_test.dart')
         ]));
       });
 
       test("can run tests in those suites", () {
         var suite = suites.firstWhere((suite) => suite.path.contains("a_test"));
-        var liveTest = suite.entries[1].load(suite);
+        var liveTest = suite.group.entries[1].load(suite);
         expectSingleFailure(liveTest);
         return liveTest.run().whenComplete(() => liveTest.close());
       });
     });
   });
 
   test("a print in a loaded file is piped through the LoadSuite", () async {
     new File(p.join(_sandbox, 'a_test.dart')).writeAsStringSync("""
 void main() {
   print('print within test');
 }
 """);
     var suites = await _loader.loadFile(p.join(_sandbox, 'a_test.dart'))
         .toList();
     expect(suites, hasLength(1));
     var loadSuite = suites.first;
 
-    var liveTest = await loadSuite.entries.single.load(loadSuite);
+    var liveTest = await loadSuite.group.entries.single.load(loadSuite);
     expect(liveTest.onPrint.first, completion(equals("print within test")));
     await liveTest.run();
     expectTestPassed(liveTest);
   });
 
   // TODO: Test load suites. Don't forget to test that prints in loaded files
   // are piped through the suite. Also for browser tests!
 }