public void WhenIGetTokensAsyncIReceiveDeserializedTokens()
{
var uriOauth = OAuthRequestHandler.OAuthRequestUri;
var factory = new TestWebRequestFactory();
factory.RegisterResultForUri(uriOauth.AbsoluteUri, "{\"access_token\": \"<<token>>\"}");
var service = new OAuthService(_configuration, factory);
OAuthTokens received = service.GetTokensAsync("code").Result;
Assert.IsNotNull(received);
Assert.AreEqual("<<token>>", received.AccessToken);
}