Introduction to the Shopping Cart Module

Welcome to your third unit for this course dedicated to practicing Test Driven Development (TDD) utilizing TypeScript and Jest. We're going to start building a new system; this time we'll build a shopping cart class with a lot of features.

In this course, emphasis is placed on hands-on practice, where you'll receive requirements through tests, one at a time. Your task is to write tests AND implement code that makes each test pass, simulating a real-world TDD environment. Where I wrote the tests for you last time, this time it's all up to you!

Remember to use the core concepts of the Red-Green-Refactor cycle while completing these coding exercises. I'm still here to help! Just ask.

Requirements for `ShoppingCart` Class
1. Starting with an Empty Cart
  • Description: When a new shopping cart is created, it should start without any items, and the total price should be zero.
  • Details
    • initialize a new shopping cart using the ShoppingCart constructor
    • ensure getItemCount() returns 0 for an empty cart
    • verify getTotal() returns 0 for the initial state.
  • Examples: a newly created cart should have a count of 0 and a total of
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