Node.js must be installed.

# Clone the repository
> git clone https://github.com/DeloitteDigitalUK/atm-case-study.git

# Install dependencies
> cd atm-case-study
> npm install

• Running npm install in the app's root directory will install everything you need for development.

• npm start will run the app's development server at http://localhost:3000 with hot module reloading.

• npm run test-utils will run the unit tests for the Utils module.
• npm run test-utils:watch will run the unit tests for the Utils module on every change.

• npm run build creates a production build by default.

  To create a development build, set the NODE_ENV environment variable to development while running this command.

• npm run clean will delete built resources.

Here you can see the structure for this repo:

|-- atm-case-study
    |-- .eslintignore
    |-- .eslintrc
    |-- .gitignore
    |-- README.md
    |-- nwb.config.js
    |-- package.json
    |-- public
    |   |-- app.css
    |   |-- index.html
    |-- src
    |   |-- index.js
    |   |-- components
    |   |   |-- atm.js
    |   |   |-- balance.js
    |   |   |-- main.js
    |   |   |-- navigation.js
    |   |   |-- withdraw.js
    |   |-- router
    |   |   |-- AppRouter.js
    |   |-- utils
    |       |-- utils.js
    |-- test-helpers
    |   |-- mockState.js
    |-- test-utils
    |   |-- mocha.opts
    |   |-- utilsSpec.js

Under the hood, this app is using nwb. A npm package that helps developers to built and setup Javascript projects. Some of the available scripts mentioned above are mapped to nwb commands.

For more information see the package.json file or run the nwb command on your terminal

I found this case study very interisting and quite challenging. I spent a lot of time to understand the logic and how the app works. It's been a great practice to study someone else's code. I have deliberately decided to focus on the tests and make the logic working properly rather than switching between back-end functionalities and front-end.

I think the most challenging part was to work on a different way of building a React app compared to the foundations of React studied at CodeClan.

• Quality Assurance & Testing
  Passing Tests: 27
  Failing Tests: 14
  I have implemented the tests in utilsSpec.js and the functions for the method areAnyNotesLeft in utils.js as requested. I didn't manage to implement the methods 'calculateCountNotes' and subtractCountFromTotal (i.e. where the tests fail).

• Style
  Added an app.css file with a minimal coloured background. Although I wish I had more time to focus on the style and make the app responsive I thought it would be not a priority to spend a lot of time on the style if the app doesn't work properly and the tests do not pass.
  For such reasons I have adopted a TDD-Approach from the beginning.