tdd in jest and cypress

This is a TDD example project in javascript.

• Stack -- use tdd in jest approach to build a Stack module

• Counter -- use tdd in cypress to build a web counter

Test Stack JS using Jest

* npm run jest-test

Code Coverage

code coverage is included in jest-test with the follow criteria:

    "coverageThreshold": {
        "global": {
            "statements": 100,
            "branches": 100,
            "functions": 100,
            "lines": 100
        }
    }

Test Counter App using Cypress

needs two terminals

* terminal 1: npm run ui-dev
* terminal 2: npm run cypress-test

Automated Github Actions

There are two github action yaml files in .github/workflows/ folder. They ensure the above tests are passsing. PR will be blocked on any failure.

* jest-test.yml
* cypress-test.yml