Add `Testing` research and demos

[brandon93s]

Criteria: Testing Candidates:

• [ ] angular
• [ ] react
• [X] vue.js

[brandon93s]

Popular test stacks listed below to get us started. This is non exhaustive and we should explore beyond this list!

Common

• AVA - Futuristic JavaScript test runner
• Nightwatch.js - e2e tests
• cypress - testing for browser
• Jest - Delightful JavaScript Testing (by Facebook)
• Karma - Spectacular Test Runner for Javascript
• Mocha - simple, flexible, fun javascript test framework for node.js & the browser

Angular

• Protractor - end-to-end test framework for Angular (by Angular team)
• @angular/core/testing - Angular testing utilities

  React

• Enzyme - JavaScript Testing utilities for React
• react-dom/test-utils - test utilities
• test-renderer - test rendering

Vue.js

• vue-test-utils - Utilities for testing Vue components (official test library from Vue)
• avoriaz - a Vue.js testing utility library
• vue-jest - Jest Vue transformer with source map support

[brandon93s]

Examples added for vue leveraging:

• vue-test-utils
• Jest
• vue-jest
• nightwatch.js
• jest-serializer-vue
• babel-jest