sign up&sign in page ,home page ,cart detail page ,checkout page, include interactions ,validations ,passing of variable values.
Sign Up:test case:
user :Admin
email:1@1.1
pwd:1111111111
cart page :The data transfer for unit price, quantity, and total price is sent all the way to state2 on the checkout page: select a shipping method that describes the quantity and price of the product
checkout page ：
contains 3 panel states
shipping method state contains 3 panel states of free or not free（radio buttons)