public void AddFavoriteProduct_WithExistentSameFavoriteProduct_ShouldReturnFalse()
{
string errorMessagePrefix = "FavoriteProductsService AddFavoriteProduct() method does not work properly.";
var context = UniShopDbContextInMemoryFactory.InitializeContext();
this.SeedData(context);
this.favoriteProductsService = new FavoriteProductsService(context, new UniShopUsersService(context));
UniShopUser user = context.Users.First();
int productId = context.Products.First().Id;
UniShopUserFavoriteProduct testFavoriteProduct = new UniShopUserFavoriteProduct
{
UniShopUserId = user.Id,
ProductId = productId
};
context.Add(testFavoriteProduct);
context.SaveChanges();
int expectedCount = user.FavoriteProducts.Count();
bool actualResult = this.favoriteProductsService.AddFavoriteProduct(productId, user.UserName);
int actualCount = user.FavoriteProducts.Count();
Assert.False(actualResult, errorMessagePrefix);
Assert.Equal(expectedCount, actualCount);
}
public bool AddFavoriteProduct(int productId, string username)
{
var user = this.uniShopUsersService.GetUserByUsername(username);
var isFavoriteProductExist = this.context.UniShopFavoriteProducts.Any(p => p.ProductId == productId);
var isProductExist = this.context.Products.Any(p => p.Id == productId);
if (user == null || isFavoriteProductExist || !isProductExist)
{
return(false);
}
var favoriteProduct = new UniShopUserFavoriteProduct
{
ProductId = productId,
UniShopUserId = user.Id
};
this.context.UniShopFavoriteProducts.Add(favoriteProduct);
int result = this.context.SaveChanges();
return(result > 0);
}