anchor.diff:    }
   
     Future<http.Response> handler(http.Request request) {
  -    expect(request.url.host, hostname);
  +    expect(
  +      request.url.host,
  +      anyOf(rootUri.host, 'storage.googleapis.com'),
  +    );
       var path = request.url.path;
       if (mocks[request.method] == null) {
         throw 'No mock handler for method ${request.method} found. '
  
positive.code:   http_testing.MockClient client;
  
    MockClient(String hostname, String rootPath)
        : hostname = hostname,
          rootPath = rootPath,
          rootUri = Uri.parse('https://$hostname$rootPath') {
      client = http_testing.MockClient(handler);
    }
  
negative.code: 
    final _bytesHeaderRegexp = RegExp(r'bytes=(\d+)-(\d+)');
  
    final String rootPath;
    final Uri rootUri;
  
  