• React Version: 16.13.1
• Node Version: ^12.18.3
• Default Port: 8000

The app has two separate views/components. The Product Listing Component and Cart Component. The list of products to be displayed is already provided in the app. 

The Product Listing component should implement the following functionalities:

• Clicking on each 'Add To Cart' button should add the item to the shopping cart. When an item is added to the cart, 

  • 'Add To Cart' button should be removed from view and 'Remove From Cart' button should be displayed.
  • An entry should be added to the table in Cart Component.

• Clicking on each 'Remove From Cart' button should remove the item from the cart and display 'Add to Cart' button for the corresponding product item.

• The Cart Component should have the following functionalities:

  • Display all the items in the cart in a table.

  • Display the Cart Subtotal, Discount Value, and Total Price. 

  • The Cart has a Coupon Select Input. On selecting a coupon from this input, an appropriate discount is applied and the total price is calculated and displayed. (Subtotal - Discount = Total Price)

• Items should be displayed in the Cart Component in the order they are added to Cart. 

• The list of products and the cart object is passed as Prop to the Product Listing Component and Cart Component respectively.

Each product object contains the following properties: 

• name: Name of the product. [STRING]
• price - The price of the Product. [NUMBER]
• id: Unique ID of the product. (Auto Generated) [NUMBER]
• image:  The image URL of the product. [STRING]
• cartQuantity: The quantity of the item in the cart. The default value should be 0. [NUMBER]

Each item in the cart, Type CartItem has the following properties:

• id: Same as ID of the product. [NUMBER]
• item - The heading property of the product. [STRING]
• quantity: The quantity of the item in the cart [NUMBER]
• price: The total amount of the item in cart. (quantity x product.price) [NUMBER]

The following data-testid/class attributes are required in the component for the tests to pass:

• Each product item in the Listing component should have the class product-item.
• Each Add to Cart button should have the data-testid attribute 'btn-item-add'.
• Each Remove to Cart button should have the data-testid attribute 'btn-item-add'.
• The table rows <tr> in the Cart Component corresponding to items in the cart should have the data-testid attribute of cart-item-0, cart-item-1, and so on.
• The table data <td> containing the Name of the Item in the cart should have the data-testid attribute 'cart-item-name'.
• The table data <td> containing the Quantity of the Item in the cart should have the data-testid attribute 'cart-item-quantity'.
• The table data <td> containing the Price of the Item in the cart should have the data-testid attribute 'cart-item-price'.
• The Coupon Select input should have a data-testid attribute 'cart-coupon'
• The Cart Subtotal value container should have a data-testid 'cart-subtotal'. 
• The Cart Discount value container should have a data-testid 'cart-discount'. 
• The Cart Total Price value container should have a data-testid 'cart-total'. 

Note: Please note that the component has the above data-testid attributes for test cases and certain classes and ids for rendering purposes. It is advised not to change them.

Read Only Files

• [src/App.test.js]

Commands

• run:

bash bin/env_setup && . $HOME/.nvm/nvm.sh && npm start

• install:

bash bin/env_setup && . $HOME/.nvm/nvm.sh && npm install

• test:

bash bin/env_setup && . $HOME/.nvm/nvm.sh && npm test