private static void VerifyRequestContents(IRequestExecutor executor, string queryString)
 {
     executor.Received()
         .ExecuteAsync(
             Arg.Is<IHttpRequest>(request =>
                 request.CanonicalUri.ToString().EndsWith(queryString)),
             Arg.Any<CancellationToken>());
 }
 private static void VerifyRequestContents(IRequestExecutor executor, string queryString)
 {
     executor.Received()
     .ExecuteAsync(
         Arg.Is <IHttpRequest>(request =>
                               request.CanonicalUri.ToString().EndsWith(queryString)),
         Arg.Any <CancellationToken>());
 }