Test framework that supports parallelization and promises
Latest commit dcce602 Nov 12, 2013 @nbrownus Bumping to 1.0.0
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PPUnit is a test framework that supports parallelization and promises, inspired by Mocha.

Currently only supporting a BDD interface but PPUnit can be extended to include more.


By default all tests are run in series and all suites are run in parallel. Test and suite parallelism can be changed on a case by case basis. You can also specifiy a test or suites level of exclusivity, limiting what the test or suite can run with.

  • Non exclusive - Execution is not restricted at all
  • Locally exclusive - These items may not execute alongside any of its siblings.
  • Globally exclusive - These items are the only things allowed to run during their execution.

There is a single rule that can not be changed:

Children suites can not run until their parents tests have completed

Basic Usage

A simple non asynchronous, non paralellized test case

describe('Suite', function () {
    it('1 should equal 1', function () {
        assert(1 === 1, '1 did not equal 1?!')


TODO: Fill in this section Return a promise, it works as you would expect

Async tests

If the test takes an argument it will be considered async and will only be completed once that argument is executed

it('Should do things', function (done) {
    setTimeout(done, 1000)

Marking a test as failed

You can throw, return an error, return a promise and fail it, or call done with a value

it('test1', function () {
    throw new Error('Failed')

it('test2', function () {
    return new Error('Failed')

it('test3', function () {
    var promise = new Promise()

    setTimeout(function () {
        promise.fail(new Error('Because'))
    }, 1000)

    return promise

it('test4', function (done) {
    done(new Error('Failed'))

it('test5', function (done) {

Setting exclusivity

Exclusivity is what controls an items paralellism

On a test (before/each, after/each, and test)

it('Should do something').nonExclusive()
it('Should do something').locallyExclusive()
it('Should do something').globallyExclusive()

On a suite

describe('suite', function () {...} ).nonExclusive()
describe('suite', function () {...} ).locallyExclusive()
describe('suite', function () {...} ).globallyExclusive()

Suites can also set the default exclusivity of all tests within its ancestry (includes child suites)

describe('suite', function () {
    //All three tests would execute in parallel
    it('test1', function () {...})
    it('test2', function () {...})
    it('test3', function () {...})

describe('suite', function () {
    //All three tests would execute in series and other suites tests may be running as well, this is the default
    it('test1', function () {...})
    it('test2', function () {...})
    it('test3', function () {...})

describe('suite', function () {
    //All three tests would execute in series and no other tests would be running, this should be avoided
    it('test1', function () {...})
    it('test2', function () {...})
    it('test3', function () {...})

Skip and Only

A test or suite can be marked as skip, which causes everything within that items ancestry to be skipped, unless it is marked as only

describe.skip('suite', function () {
    //This test would be skipped
    it('test1', function () {...})

    //This test would run
    it.only('test2', function () {...})

Multiple items can be marked as only, and only those items would be run

describe('suite', function () {
    //test1 and test2 will run, test3 will be skipped
    it.only('test1', function () {...})
    it.only('test2', function () {...})
    it('test3', function () {...})

TODO: Explain before/each and after/each only handling

TODO: Explain suite methods

TODO: Explain test methods

TODO: Explain hooks in general

TODO: Explain cli runner

TODO: Explain graphviz stuff