NullReferenceRhinoMocks

example1.cs

public void SetCookie(IHttpContextService context)
{
    if (context == null)
        return;

    if (context.User == null)
        return;

    if (context.User.Identity == null)
        return;

    if (!context.User.Identity.IsAuthenticated)
        return;

    this.UserName = context.User.Identity.Name;
    // Create a cookie for username and key
    var cookie = new HttpCookie("Token", this.UserNameOnly + "|" + GetKey(this.Input));
    context.CookieCollection.Add(cookie);
}

example2.cs

[Test]
public void Should_SetACookie()
{
    var httpContextService = MockRepository.GenerateStub<IHttpContextService>();
    var cookieCollection = new HttpCookieCollection();

    IPrincipal user = new GenericPrincipal(new GenericIdentity("Test"),
        new[] {"TestRole"});

    httpContextService.Stub(c => c.User).Return(user);
    httpContextService.Stub(c => c.CookieCollection).Return(cookieCollection);

    cookieSetter.SetCookie(httpContextService);

    httpContextService.VerifyAllExpectations();
}

example3.cs

httpContextService.Stub(c => c.User).Return(user).Repeat.Any();