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jasmine/Contribute.markdown
2013-04-01 11:35:22 -07:00

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# Developing for Jasmine Core
## How to Contribute
We welcome your contributions - Thanks for helping make Jasmine a better project for everyone. Please review the backlog and discussion lists (the main group - [http://groups.google.com/group/jasmine-js](http://groups.google.com/group/jasmine-js) and the developer's list - [http://groups.google.com/group/jasmine-js-dev](http://groups.google.com/group/jasmine-js-dev)) before starting work - what you're looking for may already have been done. If it hasn't, the community can help make your contribution better.
## General Workflow
Please submit pull requests via feature branches using the semi-standard workflow of:
1. Fork it
1. Create your feature branch (`git checkout -b my-new-feature`)
1. Commit your changes (`git commit -am 'Add some feature'`)
1. Push to the branch (`git push origin my-new-feature`)
1. Create new Pull Request
## Install Dependencies
Jasmine Core relies on Ruby and Node.js.
To install the Ruby dependencies, you will need Ruby, Rubygems, and Bundler available. Then:
$ bundle
...will install all of the Ruby dependencies.
To install the Node dependencies, you will need Node.js, Npm, and [Grunt](http://gruntjs.com/), the [grunt-cli](https://github.com/gruntjs/grunt-cli) and ensure that `grunt` is on your path.
$ npm install --local
...will install all of the node modules locally. If when you run
$ grunt
...you see that JSHint runs your system is ready.
## How to write new Jasmine code
Or, How to make a successful pull request
* _Do not change the public interface_. Lots of projects depend on Jasmine and if you aren't careful you'll break them
* _Be environment agnostic_ - server-side developers are just as important as browser developers
* _Be browser agnostic_ - if you must rely on browser-specific functionality, please write it in a way that degrades gracefully
* _Write specs_ - Jasmine's a testing framework; don't add functionality without test-driving it
* _Write code in the style of the rest of the repo_ - Jasmine should look like a cohesive whole
* _Ensure the *entire* test suite is green_ in all the big browsers, Node, and JSHint - your contribution shouldn't break Jasmine for other users
Follow these tips and your pull request, patch, or suggestion is much more likely to be integrated.
## Development
All source code belongs in `src/`. The `core/` directory contains the bulk of Jasmine's functionality. This code should remain browser- and environment-agnostic. If your feature or fix cannot be, as mentioned above, please degrade gracefully. Any code that should only be in a non-browser environment should live in `src/console/`. Any code that depends on a browser (specifically, it expects `window` to be the global or `document` is present) should live in `src/html/`.
## Running Specs
Jasmine uses the Jasmine Ruby gem to test itself in browser.
$ rake jasmine
...and then visit `http://localhost:8888` to run specs.
Jasmine uses a Node
and uses a custom runner for node.
Tests in Bro
As in all good projects, the `spec/` directory mirrors `src/` and follows the same rules. The browser runner will include and attempt to run all specs. The node runner will exclude any html-dependent specs (those in `spec/html/`).
You will notice that all specs are run against the built `jasmine.js` instead of the component source files. This is intentional as a way to ensure that the concatenation code is working correctly.
Please ensure all specs are green before committing or issuing a pull request.
There are Thor tasks to help with getting green - run `thor list` to see them all. Here are the key tasks:
* `thor jasmine_dev:execute_specs` outputs the expected number of specs that should be run and attempts to run in browser and Node
* `thor jasmine_dev:execute_specs_in_browser` opens `spec/runner.html` in the default browser on MacOS. Please run this in at least Firefox and Chrome before committing
* `thor jasmine_dev:execute_specs_in_node` runs all the Jasmine specs in Node.js - it will complain if Node is not installed