public async Task OnGet_WhenUserIsNotLoggedIn_ReturnsRedirectToPageResult()
{
mockUserManager.Setup(p => p.GetUserAsync(httpContext.User)).ReturnsAsync(portFreightUsers.FirstOrDefault(x => x.Id is null));
var result = (RedirectToPageResult)await model.OnGetAsync();
Assert.IsNotNull(result);
Assert.AreEqual("/Account/Logout", result.PageName);
Assert.IsInstanceOfType(result, typeof(RedirectToPageResult));
}