IMY773 - Workshop

thanks tiny

My project for IMY773, which is a test-driven development assignment based around creating a hexadecimal calculator. We had to create all the tests, ui and "backend" features required. The project can be found at workshop.sloththe.dev.

Features

• Basic hexadecimal calculator.
• View past calculations.
• Convert between hexidecimal and decimal.
• Chain calculations.

Server Architecture and Technologies Used

I am building out my application using NextJS, a React based framework that offers superior performance, one of the best developer experiences and easy use. NextJS has great integration with Vercel which is why I chose it as the hosting provider, along side the database provider. I am using a Postgres based database since it is easy to use and integrate into NextJS and Vercel.

For testing, I am exclusively using Jest. Jest works well with any Javascript based framework and has all the functionality I need. I can test my "backend" features to my frontend ones. It allows me to do end-to-end testing, testing that my frontend communicate with my backend functions, and visa versa.

Functional Requirements

Input & Output

• Should only accept hexadecimal values with a maximum length of 3.
• Should return only positive hexadecimal values with a maximum length of 6.
• Should not return any negative values.
• Should not return any decimal places.
• Should return the respective error messages as required.

Calculations

• Should be able to perform the following actions between two values:
  • Multiplication
  • Division
  • Addition
  • Subtraction
• Should be able to store all problems and solutions in a database.