Gaia is Mozilla's Phone UX for the Boot to Gecko (B2G) project.

Boot to Gecko aims to create a complete, standalone operating system for the open web.

You can read more about B2G here:

https://mozilla.org/b2g

follow us on twitter: @Boot2Gecko

https://twitter.com/Boot2Gecko

join the Gaia mailing list:

https://groups.google.com/group/mozilla.dev.gaia

and talk to us on IRC:

#gaia on irc.mozilla.org

The Gaia/Hacking page on MDN has all the information that you need to start working on Gaia, including building and running Gaia on a compatible device or desktop computer.

Unit tests for an app go in apps/<APP>/test/unit/.

To run all the unit tests with B2G Desktop:

1. Run DEBUG=1 make

2. Run make test-agent-server &

3. Run B2G Desktop and open the Test Agent app

4. Run make test-agent-test

   or make test-agent-test APP=<APP> to run unit tests for a specific app

More importantly, you can use test-agent-server to watch the files on the filesystem and execute relevant tests when they change:

1. Run DEBUG=1 make
2. Run make test-agent-server &
3. Run B2G Desktop and open the Test Agent app
4. Edit files and when you save them, glance at the console with test-agent-server running

Note: If you add new files, you will need to restart test-agent-server.

As a convenience, you can also use the gaia-test script to launch the test-agent-server and open the Test Agent app in firefox:

1. Add firefox to your $PATH or set $FIREFOX to your preferred firefox/aurora/nightly binary.
2. Run ./bin/gaia-test to run the test-agent-server and launch firefox.
3. Run make test-agent-test or modify files as described above.

For more details on writing tests, see: https://developer.mozilla.org/en/Mozilla/Boot_to_Gecko/Gaia_Unit_Tests

Gaia uses marionette-js-runner to run the tests with a custom builder for gaia. Tests should live with the rest of your apps code (in apps/my_app/test/marionette) and test files should end in _test.js.

All integration tests run under a node environment. You need node >= 0.8 for this to work predictably.

Shared code for tests lives under shared/test/integration.

./bin/gaia-marionette <test> [test...]

All options are passed to ./node_modules/.bin/marionette-mocha so you can also use mocha commands like --grep, --timeout see --help for more options.

NOTE: unless you tests end in _test.js they will not be automatically picked up by make test-integration.

make test-integration

• Node.js

• MDN: for high level overview

• mocha: which is wrapped by marionette-js-runner

• marionette-js-runner: for the test framework

• marionette-client: for anything to do with client.X

• For performance reasons we don't run make profile for each test run this means you need to manually remove the profile-test folder when you make changes to your apps.

• If you don't have a b2g folder one will be downloaded for you. This can be problematic if you're offline. You can symlink a b2g-desktop directory to b2g/ in gaia to avoid the download.

• If you have some weird node errors, try removing node_modules since things may be stale.