Support future matchers and expectAsync in tearDowns.

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 121 matching lines @@
 /// 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;
 }
 
+/// Like [runZoned], but [zoneValues] are set for the callbacks in
+/// [zoneSpecification] and [onError].
+runZonedWithValues(Function body(), {Map zoneValues,
+    ZoneSpecification zoneSpecification, Function onError}) {
+  return runZoned(() {
+    return runZoned(body,
+        zoneSpecification: zoneSpecification, onError: onError);
+  }, zoneValues: zoneValues);
+}
+
 /// Truncates [text] to fit within [maxLength].
 ///
 /// This will try to truncate along word boundaries and preserve words both at
 /// the beginning and the end of [text].
 String truncate(String text, int maxLength) {
   // Return the full message if it fits.
   if (text.length <= maxLength) return text;
 
   // If we can fit the first and last three words, do so.
   var words = text.split(' ');
@@ skipping 152 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;
   };
 }