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Add customer communication system

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sysadmin
2025-08-27 18:02:39 +01:00
parent 1f7c0af497
commit eae5be3e7c
136 changed files with 14552 additions and 97 deletions
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TeleBot/TeleBot.Tests/Models/ShoppingCartTests.cs Normal file
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using System;
using System.Linq;
using FluentAssertions;
using TeleBot.Models;
using Xunit;
namespace TeleBot.Tests.Models
{
public class ShoppingCartTests
{
[Fact]
public void NewCart_ShouldBeEmpty()
{
// Arrange & Act
var cart = new ShoppingCart();
// Assert
cart.IsEmpty().Should().BeTrue();
cart.GetTotalItems().Should().Be(0);
cart.GetTotalAmount().Should().Be(0);
}
[Fact]
public void AddItem_ShouldAddToCart()
{
// Arrange
var cart = new ShoppingCart();
var productId = Guid.NewGuid();
// Act
cart.AddItem(productId, "Test Product", 10.50m, 2);
// Assert
cart.IsEmpty().Should().BeFalse();
cart.GetTotalItems().Should().Be(2);
cart.GetTotalAmount().Should().Be(21.00m);
cart.Items.Should().HaveCount(1);
cart.Items.First().ProductName.Should().Be("Test Product");
}
[Fact]
public void AddItem_SameProduct_ShouldIncreaseQuantity()
{
// Arrange
var cart = new ShoppingCart();
var productId = Guid.NewGuid();
// Act
cart.AddItem(productId, "Product A", 5.00m, 1);
cart.AddItem(productId, "Product A", 5.00m, 2);
// Assert
cart.Items.Should().HaveCount(1);
cart.Items.First().Quantity.Should().Be(3);
cart.GetTotalAmount().Should().Be(15.00m);
}
[Fact]
public void AddItem_DifferentProducts_ShouldAddSeparately()
{
// Arrange
var cart = new ShoppingCart();
var productId1 = Guid.NewGuid();
var productId2 = Guid.NewGuid();
// Act
cart.AddItem(productId1, "Product A", 10.00m, 1);
cart.AddItem(productId2, "Product B", 20.00m, 2);
// Assert
cart.Items.Should().HaveCount(2);
cart.GetTotalItems().Should().Be(3);
cart.GetTotalAmount().Should().Be(50.00m);
}
[Fact]
public void RemoveItem_ShouldRemoveFromCart()
{
// Arrange
var cart = new ShoppingCart();
var productId = Guid.NewGuid();
cart.AddItem(productId, "Test Product", 10.00m, 2);
// Act
cart.RemoveItem(productId);
// Assert
cart.IsEmpty().Should().BeTrue();
cart.GetTotalItems().Should().Be(0);
}
[Fact]
public void RemoveItem_NonExistent_ShouldNotThrow()
{
// Arrange
var cart = new ShoppingCart();
var productId = Guid.NewGuid();
// Act & Assert
var act = () => cart.RemoveItem(productId);
act.Should().NotThrow();
}
[Fact]
public void UpdateQuantity_ShouldUpdateExistingItem()
{
// Arrange
var cart = new ShoppingCart();
var productId = Guid.NewGuid();
cart.AddItem(productId, "Test Product", 10.00m, 2);
// Act
cart.UpdateQuantity(productId, 5);
// Assert
cart.Items.First().Quantity.Should().Be(5);
cart.GetTotalAmount().Should().Be(50.00m);
}
[Fact]
public void UpdateQuantity_ToZero_ShouldRemoveItem()
{
// Arrange
var cart = new ShoppingCart();
var productId = Guid.NewGuid();
cart.AddItem(productId, "Test Product", 10.00m, 2);
// Act
cart.UpdateQuantity(productId, 0);
// Assert
cart.IsEmpty().Should().BeTrue();
}
[Fact]
public void UpdateQuantity_Negative_ShouldRemoveItem()
{
// Arrange
var cart = new ShoppingCart();
var productId = Guid.NewGuid();
cart.AddItem(productId, "Test Product", 10.00m, 2);
// Act
cart.UpdateQuantity(productId, -1);
// Assert
cart.IsEmpty().Should().BeTrue();
}
[Fact]
public void Clear_ShouldEmptyCart()
{
// Arrange
var cart = new ShoppingCart();
cart.AddItem(Guid.NewGuid(), "Product A", 10.00m, 2);
cart.AddItem(Guid.NewGuid(), "Product B", 20.00m, 1);
// Act
cart.Clear();
// Assert
cart.IsEmpty().Should().BeTrue();
cart.GetTotalItems().Should().Be(0);
cart.GetTotalAmount().Should().Be(0);
}
[Fact]
public void CartItem_UpdateTotalPrice_ShouldCalculateCorrectly()
{
// Arrange
var item = new CartItem
{
UnitPrice = 15.50m,
Quantity = 3
};
// Act
item.UpdateTotalPrice();
// Assert
item.TotalPrice.Should().Be(46.50m);
}
[Fact]
public void Cart_UpdatedAt_ShouldUpdateOnModification()
{
// Arrange
var cart = new ShoppingCart();
var originalTime = cart.UpdatedAt;
System.Threading.Thread.Sleep(10);
// Act
cart.AddItem(Guid.NewGuid(), "Product", 10.00m, 1);
// Assert
cart.UpdatedAt.Should().BeAfter(originalTime);
}
[Theory]
[InlineData(10.99, 1, 10.99)]
[InlineData(5.50, 3, 16.50)]
[InlineData(0.99, 100, 99.00)]
[InlineData(123.45, 2, 246.90)]
public void GetTotalAmount_ShouldCalculateCorrectly(decimal price, int quantity, decimal expectedTotal)
{
// Arrange
var cart = new ShoppingCart();
// Act
cart.AddItem(Guid.NewGuid(), "Product", price, quantity);
// Assert
cart.GetTotalAmount().Should().Be(expectedTotal);
}
[Fact]
public void ComplexCart_ShouldCalculateCorrectTotals()
{
// Arrange
var cart = new ShoppingCart();
// Act
cart.AddItem(Guid.NewGuid(), "Laptop", 999.99m, 1);
cart.AddItem(Guid.NewGuid(), "Mouse", 25.50m, 2);
cart.AddItem(Guid.NewGuid(), "Keyboard", 75.00m, 1);
cart.AddItem(Guid.NewGuid(), "Monitor", 350.00m, 2);
// Assert
cart.Items.Should().HaveCount(4);
cart.GetTotalItems().Should().Be(6);
cart.GetTotalAmount().Should().Be(1825.99m);
}
}
}