Sprint Challenge: Testing the Customer Management System

# Sprint Challenge: Testing the Customer Management System

**The code you write for this challenge is mandatory homework and should be completed and sent in a PR for review before class.**

## Bringing It All Together

Given the customer management system built in sprint 4 build unit tests for the major services and behaviours.

## Requirements

Provide tests and javadoc for all the public methods of the following service implementations;

- `EmailMessageSender`
- `SmsMessageSender`
- `CustomerService`
- `OrderService`
- `ReportingService`
- `InMemoryCustomerRepository`
- `InMemoryOrderRepository`

Provide javadoc for all the implementations above and for the following interfaces;

- `CustomerRepository`
- `OrderRepository`
- `MessageSender`

Add logging to your system so that;

- an identifier is assigned and recorded consistently in the logs for all parts of the order process
- you can see when an order is being placed and the final status
- debug level information is recorded when the order total is calculated
- the message sender confirms the message is sent

### Submission & Review

Fork the coursework repo to your own GitHub account.
Make regular small commits with clear messages.
When you are ready, open a Pull Request to the CYF repo. Make sure you fill in the PR template provided.
A volunteer will review your submission and send you feedback.