public void RatingsCrud()
{
var options = CreateOptions("RatingsCrud");
using (var context = new ApplicationDbContext((options)))
{
var controller =
new ProductsController(
new ProductsService(
context));
Assert.That(
controller.ListProducts(0).Count == 0,
"Test database should be empty, but found at least one product");
var product = new Product()
{
Name = "Rated Product Test",
Description = "Rated Product Test"
};
context.Products.Add(product);
var users = new List <ApplicationUser>()
{
new ApplicationUser()
{
UserName = "******"
},
new ApplicationUser()
{
UserName = "******"
}
};
context.Users.AddRange(users);
context.SaveChanges();
}
using (var context = new ApplicationDbContext(options))
{
var controller =
new ProductsController(
new ProductsService(
context));
// Default identity to avoid NullReferenceException
controller.ControllerContext = new ControllerContext()
{
HttpContext = new DefaultHttpContext()
{
User = new ClaimsPrincipal(new ClaimsIdentity())
}
};
var id = context.Products.First().Id;
var productViewModel = controller.GetProductWithRatings(id, 0);
Assert.That(
productViewModel.AverageRating == 0,
"Product has no ratings, but a non-zero average rating.");
Assert.That(productViewModel.UserRating == 0,
"User has not rated product, but user rating is reported to be non-zero.");
// "Logging in" user
controller.ControllerContext = new ControllerContext()
{
HttpContext = new DefaultHttpContext()
{
User = new ClaimsPrincipal(
new ClaimsIdentity(
new Claim[]
{
new Claim(ClaimTypes.Name, "Alice")
}))
}
};
controller.AddRating(new RatingViewModel {
Message = "Test rating",
ProductId = id,
UserName = "******",
Value = 5
});
productViewModel = controller.GetProductWithRatings(id, 0);
Assert.That(
productViewModel.UserRating == 5,
"User has given product rating value of 5, but UserRating is not 5.");
Assert.That(productViewModel.AverageRating == 5,
"Product has only one rating with a value of 5, but AverageRating is not 5.");
// "Log in" as different user
controller.ControllerContext = new ControllerContext()
{
HttpContext = new DefaultHttpContext()
{
User = new ClaimsPrincipal(
new ClaimsIdentity(
new Claim[]
{
new Claim(ClaimTypes.Name, "Bob")
}))
}
};
productViewModel = controller.GetProductWithRatings(id, 0);
Assert.That(
productViewModel.UserRating == 0,
"User has not rated product, but user rating is reported to be non-zero.");
Assert.That(productViewModel.AverageRating == 5,
"Product has only one rating with a value of 5, but AverageRating is not 5.");
controller.AddRating(new RatingViewModel
{
Message = "Test rating",
ProductId = id,
UserName = "******",
Value = 4
});
productViewModel = controller.GetProductWithRatings(id, 0);
Assert.That(productViewModel.UserRating == 4,
"User has given product rating value of 4, but UserRating is not 4");
Assert.That(productViewModel.AverageRating == 4.5,
"Product has two ratings total, with values of 4 and 5, but the product's" +
"average rating is not reported as 4.5.");
// Log out
controller.ControllerContext = new ControllerContext()
{
HttpContext = new DefaultHttpContext()
};
productViewModel = controller.GetProductWithRatings(id, 0);
Assert.That(
productViewModel.UserRating == 0,
"User is not logged in, but product's user rating is reported as non-zero");
Assert.That(productViewModel.AverageRating == 4.5,
"Product has two ratings total, with values of 4 and 5, but the product's" +
"average rating is not reported as 4.5.");
}
}
