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Jessie - a Node runner for Jasmine

Jessie is a Node runner for Jasmine. It was created to provide better reporting on failures, more modular design, easier creation of formatters and optional syntactic sugar.


Stable version is available on npm, so you can install by using:

npm install jessie

If you want to install the edge development version, simply clone this repo and install from it:

git clone git://
npm install ./jessie

Running Tests

$ jessie
  jessie [OPTIONS] [spec dirs/files]

  -f, --format [STRING]  Output format to use (Default is progress)
  -v, --version          Display the current version
  -h, --help             Display help and usage details

Jessie will run specs in any folder you specify, but it will automatically load up 'spec/spec_helper.js' if it is present.

For details on how to use Jasmine, consult the Jasmine docs at []

Using Jezebel

Jezebel is a continuous test runner and REPL (Read, Evaluate, Print, Loop) for Jessie. You can run it like so:

$ jezebel 
> runTests()
> ................................................................

Completed in 0.037 seconds
64 examples 


Jezebel runs all your tests when it starts, and every time a .js file in or under the current directory is changed. You can force a test run by calling the runTests() function from the REPL. Other functions will become available as jezebel improves.


Currently Jessie ships with 2 formatters: progress and nested. By default it uses progress. If you want to use nested, you can do it by specifying the -f option:

jessie spec -f nested

Pending specs

Jessie extends Jasmine with the ability of marking pending specs. All you have to do is call the pending() function within your spec, like this:

it("should be pending", function() {

Optionally, you can provide a message that will appear within spec results, simply by sending an argument to pending(), like this:

it("should be pending", function() {
  pending("Add real spec here!")


If you want, Jessie can extend the built-in prototypes with syntactic sugar, so you can use methods like this:

variable.should_be("Foo Boo")

The number of these methods is limited and will possibly grow with time.

To use them, put this line into spec/spec_helper.js



Jessie is a fresh project, so forks are very welcome!


Tests are in Jasmine and run on Jessie. In order to run them, use the binary in the bin folder (be sure to run `npm install` first to get the dependencies)

bin/jessie spec


jessie is largely based on The goal of jessie is to be more modular and configurable.


Copyright © 2011 Marcin Bunsch, Future Simple Inc. See LICENSE for details.

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