protected void dgvCart_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
BookCartItem item = (BookCartItem)e.Row.DataItem;
sumFooterValue += item.Quantity * item.Book.Price;
}
else if (e.Row.RowType == DataControlRowType.Footer)
{
Label lbl = (Label)e.Row.FindControl("lblTotal");
lbl.Text = sumFooterValue.ToString();
}
}
public async Task AddRemoveUpdateClearBook()
{
var bookAsync1 = await new BookStoreHelper().SearchBooksAsync("title eq 'Mastering едц'");
var bookAsync2 = await new BookStoreHelper().SearchBooksAsync("author eq 'Cunning Bastard'");
var bookAsync3 = await new BookStoreHelper().SearchBooksAsync("title eq 'Generic Title'");
var book1 = bookAsync1.First();
var book2 = bookAsync2.First();
var book3 = bookAsync3.First();
var bookCartItem1 = new BookCartItem {
Book = book1, Quantity = 5
};
var bookCartItem2 = new BookCartItem {
Book = book2, Quantity = 2
};
var bookCartItem3 = new BookCartItem {
Book = book3, Quantity = 3
};
// Create book cart
var bookCart = new BookCart();
Assert.AreEqual(0, bookCart.BookCartItems.Count);
Assert.AreEqual(0, bookCart.TotalQuantity);
Assert.AreEqual(0, bookCart.TotalPrice);
// Add 1st book cart item to the cart
bookCart.AddBook(bookCartItem1);
Assert.AreEqual(1, bookCart.BookCartItems.Count);
Assert.AreEqual(5, bookCart.TotalQuantity);
Assert.AreEqual(3810, bookCart.TotalPrice);
// Add 2nd book cart item to the cart
bookCart.AddBook(bookCartItem2);
Assert.AreEqual(2, bookCart.BookCartItems.Count);
Assert.AreEqual(7, bookCart.TotalQuantity);
Assert.AreEqual(5808, bookCart.TotalPrice);
// Add 3rd book cart item to the cart
bookCart.AddBook(bookCartItem3);
Assert.AreEqual(3, bookCart.BookCartItems.Count);
Assert.AreEqual(10, bookCart.TotalQuantity);
Assert.AreEqual(Convert.ToDecimal(6364.5), bookCart.TotalPrice);
// Remove 2nd book cart item from the cart
bookCart.RemoveBook(bookCartItem2);
Assert.AreEqual(2, bookCart.BookCartItems.Count);
Assert.AreEqual(8, bookCart.TotalQuantity);
Assert.AreEqual(Convert.ToDecimal(4366.5), bookCart.TotalPrice);
// Update quantity of 2nd book cart item
bookCart.UpdateQuantity(bookCartItem2, 4);
Assert.AreEqual(2, bookCart.BookCartItems.Count);
Assert.AreEqual(8, bookCart.TotalQuantity);
Assert.AreEqual(Convert.ToDecimal(4366.5), bookCart.TotalPrice);
// Update quantity of 1st book cart item
bookCart.UpdateQuantity(bookCartItem1, 1);
Assert.AreEqual(2, bookCart.BookCartItems.Count);
Assert.AreEqual(4, bookCart.TotalQuantity);
Assert.AreEqual(Convert.ToDecimal(1318.5), bookCart.TotalPrice);
// Empty the cart
bookCart.Clear();
Assert.AreEqual(0, bookCart.BookCartItems.Count);
Assert.AreEqual(0, bookCart.TotalQuantity);
Assert.AreEqual(0, bookCart.TotalPrice);
}
public async Task PlaceOrder()
{
// Clear the cache
Cache.Clear();
var bookStoreHelper = new BookStoreHelper();
var bookAsync1 = await bookStoreHelper.SearchBooksAsync("title eq 'Mastering едц'");
var bookAsync2 = await bookStoreHelper.SearchBooksAsync("author eq 'Cunning Bastard'");
var bookAsync3 = await bookStoreHelper.SearchBooksAsync("title eq 'Generic Title'");
var bookAsync4 = await bookStoreHelper.SearchBooksAsync("title eq 'How To Spend Money'");
var book1 = bookAsync1.First();
var book2 = bookAsync2.First();
var book3 = bookAsync3.First();
var book4 = bookAsync4.First();
var bookCartItem1 = new BookCartItem {
Book = book1, Quantity = 5
};
var bookCartItem2 = new BookCartItem {
Book = book2, Quantity = 2
};
var bookCartItem3 = new BookCartItem {
Book = book3, Quantity = 3
};
var bookCartItem4 = new BookCartItem {
Book = book4, Quantity = 2
};
// Add books to the cart
var bookCart = new BookCart();
bookCart.AddBook(bookCartItem1);
bookCart.AddBook(bookCartItem2);
bookCart.AddBook(bookCartItem3);
bookCart.AddBook(bookCartItem4);
// Test empty cart
var customer = bookStoreHelper.GetCustomer("dummy");
await Assert.ThrowsExceptionAsync <DataException>(() => customer.PlaceOrder());
// Create customer order (combination of In-stock and not In-stock)
customer = bookStoreHelper.GetCustomer("dummy");
customer.BookCart = bookCart;
var orderDetails = await customer.PlaceOrder();
Assert.AreEqual(4, orderDetails.PurchasedBooks.Count);
Assert.AreEqual(1, orderDetails.NotInStockBooks.Count);
Assert.AreEqual(11, orderDetails.TotalQuantity);
Assert.AreEqual(Convert.ToDecimal(1006364.5), orderDetails.TotalPrice);
Assert.AreEqual(0, customer.BookCart.BookCartItems.Count);
Assert.IsTrue(customer.Orders.IsNotEmpty());
// Check In-Stock
Assert.AreEqual(10, book1.InStock);
Assert.AreEqual(18, book2.InStock);
Assert.AreEqual(2, book3.InStock);
Assert.AreEqual(0, book4.InStock);
// Add books to the cart
bookCart.AddBook(bookCartItem4);
// Create customer order (not In-stock)
orderDetails = await customer.PlaceOrder();
Assert.AreEqual(0, orderDetails.PurchasedBooks.Count);
Assert.AreEqual(1, orderDetails.NotInStockBooks.Count);
Assert.AreEqual(0, orderDetails.TotalQuantity);
Assert.AreEqual(Convert.ToDecimal(0), orderDetails.TotalPrice);
}