HW_4_Instructions_Rubric_F23.docx

Homework 4: Farmers Market For this assignment, you will be writing methods so that customers can successfully order and pay for a pickup order at the Ann Arbor Farmers Market. You will also be writing and fixing test cases, so you can guarantee that every step within the checkout i.e., placing the order and the order being processed is accurate, and your customers are happy! Review the starter code thoroughly before beginning this assignment, as understanding how the classes interact with each other is important. Take notes or draw a diagram if necessary. Overview Customer Class The Customer class represents a customer who will order from the vendors. Most of the class has been provided for you. You will write the place_order method. Each Customer object has 3 instance variables: name - a string representing a customer’s name wallet - a float showing how much money is in the customer’s farmer’s market account wallet. The default value is $10. cust_id – an integer representing a customer’s account ID number. The Customer class also includes several methods: __init__ - which initializes the customer’s attributes __str__ - which returns the customer’s name, wallet and customer ID as a string reload_wallet(self, amount) - which adds a passed amount to the wallet place_order(self, vendor, order) - which takes a vendor object and an ‘order’, which is a dictionary where the keys are Produce objects and the values are another dictionary with keys of quantity and fresh_pick . It returns a boolean value that indicates if the order was successfully placed or not. Produce Class The Produce class represents a produce item at a vendor. The code for this class has been provided for you. A Produce object has 2 instance variables: name - a string representing the name of produce cost - a float representing how much a regular pick of a produce item costs per pound versus a fresh pick , which costs 1.50 more per pound The Produce class includes 2 methods: __init_ _ - which initializes the produce's name and cost

__str__ - which returns the name and cost as a string Vendor Class The Vendor class represents a vendor.. You will write several methods for this class. See the Tasks to Complete for which methods. Each Vendor object has 3 instance variables: name - a string which is the name of the vendor earnings - a float representing the earnings the vendor currently has inventory - a dictionary which holds the produce objects as the keys and the quantities (in pounds) in stock of each produce as the values The Vendor class also includes several methods: __init__ - which initializes the attributes __str__ - which returns a string with the vendor’s name and the current menu receive_payment(self, amount) - which takes an amount and adds it to the vendor’s earning calculate_cost(self, produce, quantity, fresh_pick, customer) - takes the quantity, produce object, whether a fresh_pick has been requested, and returns the total cost stock_up(self, produce, quantity) - which adds the quantity of produce to the inventory process_order(self, order) - which takes a dictionary where the keys are Produce objects and the values are another dictionary with keys of quantity and fresh_pick .

● Write and Fix Test Cases Note: Many test cases have already been written for you. Please do not edit any test cases other than the ones that have comments above them explicitly asking you to do so. These test case-related tasks are also explained below: o Write test cases for the following scenarios for the place_order method in test_customer_place_order : • The customer doesn’t have enough money in their wallet to place the order • The vendor doesn’t have enough produce in stock • The vendor doesn’t sell the produce item mentioned in the order o Fix the test cases in test_customer_place_order_2 As you are working on one test case, feel free to comment out the test cases that you are not working on, but be sure to uncomment all test cases before you turn in your homework.

Grading Rubric (60 points) Note that if you use hardcoding (specify expected values directly) in any of the methods by way of editing to get them to pass the test cases, or you edit any test cases other than the ones you have been directed to, you will NOT receive credit for those related portions. ● 10 points for correctly completing the Customer class (5 for place_order , 5 for the rest) ● 30 points for correctly completing the Vendor class (10 points per method) ● 15 points for completing test_customer_place_order (5 points per scenario) ● 5 points for fixing test_customer_place_order_2 Extra Credit (6 points) To gain extra credit on this assignment, please check for the following condition in calculate_cost() Every customer with a customer ID that is a multiple of 100 (eg: 100, 200 etc) gets a 15% discount on each produce item.