Add an "onPlatform" parameter to test() and group().

lib/src/utils.dart

 // Copyright (c) 2013, 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.utils;
 
 import 'dart:async';
 import 'dart:math' as math;
 
 import 'package:crypto/crypto.dart';
@@ skipping 80 matching lines @@
         helper(element);
       } else {
         result.add(element);
       }
     }
   }
   helper(nested);
   return result;
 }
 
+/// Returns a new map with all values in both [map1] and [map2].
+///
+/// If there are conflicting keys, [map2]'s value wins.
+Map mergeMaps(Map map1, Map map2) {
+  var result = {};
+  map1.forEach((key, value) {
+    result[key] = value;
+  });
+  map2.forEach((key, value) {
+    result[key] = value;
+  });
+  return result;
+}
+
 /// Returns a sink that maps events sent to [original] using [fn].
 StreamSink mapSink(StreamSink original, fn(event)) {
   var controller = new StreamController(sync: true);
   controller.stream.listen(
       (event) => original.add(fn(event)),
       onError: (error, stackTrace) => original.addError(error, stackTrace),
       onDone: () => original.close());
   return controller.sink;
 }
 
@@ skipping 162 matching lines @@
   }
 }
 
 /// Returns middleware that nests all requests beneath the URL prefix [beneath].
 shelf.Middleware nestingMiddleware(String beneath) {
   return (handler) {
     var pathHandler = new PathHandler()..add(beneath, handler);
     return pathHandler.handler;
   };
 }