Adding a "zone" value to "class LogRecord"

test/logging_test.dart

Index: test/logging_test.dart
diff --git a/test/logging_test.dart b/test/logging_test.dart
index 223498f0a1707b4ae93accfdc9fa4803717be98b..8eb116a12379abd287b96cd826ea581e5885c5a5 100644
--- a/test/logging_test.dart
+++ b/test/logging_test.dart
@@ -5,6 +5,8 @@
 
 library logging_test;
 
+import 'dart:async';
+
 import 'package:logging/logging.dart';
 import 'package:unittest/unittest.dart';
 
@@ -150,6 +152,53 @@ main() {
     expect(shout.stackTrace, isNull);
   });
 
+  group('zone gets recorded to LogRecord', () {
+    test('root zone', () {
+      var root = Logger.root;
+
+      var recordingZone = Zone.current;
+      var records = new List<LogRecord>();
+      root.onRecord.listen(records.add);
+      root.info('hello');
+
+      expect(records, hasLength(1));
+      expect(records.first.zone, equals(recordingZone));
+    });
+
+    test('child zone', () {
+      var root = Logger.root;
+
+      var recordingZone;
+      var records = new List<LogRecord>();
+      root.onRecord.listen(records.add);
+
+      runZoned(() {
+        recordingZone = Zone.current;
+        root.info('hello');
+      });
+
+      expect(records, hasLength(1));
+      expect(records.first.zone, equals(recordingZone));
+    });
+
+    test('custom zone', () {
+      var root = Logger.root;
+
+      var recordingZone;
+      var records = new List<LogRecord>();
+      root.onRecord.listen(records.add);
+
+      runZoned(() {
+        recordingZone = Zone.current;
+      });
+
+      runZoned(() => root.log(Level.INFO, 'hello', null, null, recordingZone));
+
+      expect(records, hasLength(1));
+      expect(records.first.zone, equals(recordingZone));
+    });
+  });
+
   group('mutating levels', () {
     Logger root = Logger.root;
     Logger a = new Logger('a');