This software development exercise is part of the interview process for Keysight Technologies. This is an opportunity for you to show us your skill in software engineering.
Create software for a vending machine. Your program will be given two JSON files as input:
- Inventory: specifies how the vending machine is stocked, with product names, and a quantity and price (in dollars) for each product
- Transactions: a list of purchase transactions, with the product name, and the value (in cents) of coins deposited
Your software should take two command-line arguments. The first argument is the path to the inventory JSON file. The second argument is the path to the transactions JSON file.
Your software should produce a JSON document, on stdout, containing a list of transaction results. Each result should identify the product name, whether a product was delivered, and the change given, as a list of coin values.
See the test directory for examples.
To run the tests, use the run_tests.py script with Python 3.x.
Use any language and tools you'd like to construct your solution.
Document the assumptions and design decisions you've made.
A stub example is provided in Python, mainly to illustrate running the test harness. This is not meant to be a starting point for your implementation.
Deliver source code, and any instructions needed for a reviewer to run your program.