TDD exercise

Repo for a basic TDD exercise in JavaScript. master branch contains the starting point and instructions.

Prerequisites

You'll need a recent version of npm installed, and a web browser. On a mac with homebrew installed, brew install npm should do it. For other systems, please refer to the Node/npm installation instructions or the package manager for your environment.

Setup

To be set up for the workshop / exercise, you'll need to clone this repo, cd to it, and install npm modules:

$ git clone [email protected]:IdahoEv/tdd_exercise_javascript.git
$ cd tdd_exercise_javascript
$ npm install

Confirming correct setup

If your setup is correct, you should be able to do these four things:

• Run the tests once. Run npm test on the command line and you should see a single test pass successfully.
• Run the test suite repeatedly. Run npm run watch: you should see the tests run once, then pause. They will re-run when you edit the files. (Try it with test/basic_test.js!) Quit with CTRL-c
• Build the app! Execute npm run build at the command line, which should create build/app.js. The output should look something like this:

[20:16:35 tdd_demo_javascripr]$ webpack
Hash: 77a4dc5ca299c310ab91
Version: webpack 3.5.6
Time: 340ms
     Asset     Size  Chunks             Chunk Names
    app.js  2.64 kB       0  [emitted]  main
app.js.map   2.8 kB       0  [emitted]  main
   [0] ./src/index.js 114 bytes {0} [built]
[20:16:43 tdd_demo_javascript]$

• Open the app! If you open build/index.html in a web browser and see the text "It Works!", everything is working fine. On a mac, you should be able to just execute open build/index.html in the terminal.