Organizing mocha tests in subdirectories

I got tired of having all my mocha tests in one massive directory. I wanted to organize them a bit better.

Before, I would simply run this command

$ mocha

Pretty straight-forward. That won’t hit your subfolders though. Say your structure was like this:

test/
    test1.js
    test2.js
    test_group/
        test_group_test1.js

The above mocha command would run only two tests! Not cool. This was discussed in the mocha project here: https://github.com/mochajs/mocha/issues/106

TJH and others pointed out you can just pass the files to mocha as a group. Here’s the command:

mocha $(find test -name '*.js')

This command finds all js files anywhere in the test directory. They can be deep in subfolders. Yay!

Now, I don’t want to type that every time. We can take advantage of NPM’s package.js file and add a script entry for tests.

"scripts": {
  "test": "mocha $(find test -name '*.js')"
}

Here it is in context

{
  "name": "cool-app",
  "version": "0.0.0",
  "private": true,
  "scripts": {
    "start": "nodemon ./bin/www",
    "test": "mocha $(find test -name '*.js')"
  },
  "dependencies": {
    "amqplib": "^0.3.2",
  ...

Now to run my tests, I can simply type

npm test