Add location information to the JSON reporter.

lib/src/runner/remote_listener.dart

 // Copyright (c) 2016, 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.
 
 import 'dart:async';
 
 import 'package:stream_channel/stream_channel.dart';
 
 import '../backend/declarer.dart';
 import '../backend/group.dart';
@@ skipping 107 matching lines @@
   /// Serializes [group] into a JSON-safe map.
   ///
   /// [parents] lists the groups that contain [group].
   Map _serializeGroup(MultiChannel channel, Group group,
       Iterable<Group> parents) {
     parents = parents.toList()..add(group);
     return {
       "type": "group",
       "name": group.name,
       "metadata": group.metadata.serialize(),
+      "trace": group.trace?.toString(),
       "setUpAll": _serializeTest(channel, group.setUpAll, parents),
       "tearDownAll": _serializeTest(channel, group.tearDownAll, parents),
       "entries": group.entries.map((entry) {
         return entry is Group
             ? _serializeGroup(channel, entry, parents)
             : _serializeTest(channel, entry, parents);
       }).toList()
     };
   }
 
   /// Serializes [test] into a JSON-safe map.
   ///
   /// [groups] lists the groups that contain [test]. Returns `null` if [test]
   /// is `null`.
   Map _serializeTest(MultiChannel channel, Test test, Iterable<Group> groups) {
     if (test == null) return null;
 
     var testChannel = channel.virtualChannel();
     testChannel.stream.listen((message) {
       assert(message['command'] == 'run');
       _runLiveTest(
           test.load(_suite, groups: groups),
           channel.virtualChannel(message['channel']));
     });
 
     return {
       "type": "test",
       "name": test.name,
       "metadata": test.metadata.serialize(),
+      "trace": test.trace?.toString(),
       "channel": testChannel.id
     };
   }
 
   /// Runs [liveTest] and sends the results across [channel].
   void _runLiveTest(LiveTest liveTest, MultiChannel channel) {
     channel.stream.listen((message) {
       assert(message['command'] == 'close');
       liveTest.close();
     });
@@ skipping 15 matching lines @@
     });
 
     liveTest.onPrint.listen((line) {
       if (_printZone != null) _printZone.print(line);
       channel.sink.add({"type": "print", "line": line});
     });
 
     liveTest.run().then((_) => channel.sink.add({"type": "complete"}));
   }
 }