public void Returns_null_UserIdentity_When_Not_registered()
{
var context = new NancyContext();
var sut = new TwitterUserTracker();
var result = sut.GetUserFromIdentifier(Guid.NewGuid(), context);
result.Should().BeNull();
}
public void When_registered_Can_retrieve_UserIdentity_from_Session_Id()
{
const long TwitterUserId = 123L;
var sessionid = Guid.NewGuid();
var client = A.Fake <ITwitterAuthenticatedClient>();
A.CallTo(() => client.UserId).Returns(TwitterUserId);
var context = new NancyContext();
var sut = new TwitterUserTracker();
sut.Register(sessionid, client);
var user = sut.GetUserFromIdentifier(sessionid, context);
user.Should().NotBeNull();
user.Should().BeOfType <TwitterUser>();
user.As <TwitterUser>().TwitterUserId.Should().Be(TwitterUserId);
}