UI Automation tool for Mozilla applications
The [Mozmill test automation project](https://wiki.mozilla.org/QA/Mozmill_Test_Automation) was started in January 2009 and covers the automation work for Firefox. Checkout the [project page](https://wiki.mozilla.org/QA/Mozmill_Test_Automation) or have a look at the [Mozmill Tests documentation](https://developer.mozilla.org/en/Mozmill_Tests) to get an impression of how to contribute in writing and running [Mozmill tests](https://developer.mozilla.org/en/Mozmill_Tests). Existing tests get run in the [release testing](https://developer.mozilla.org/en/Mozmill/Release_Testing) cycle for new major or security releases of Firefox.
Also the Mozilla Messaging team has an active project which handles [Thunderbird Testing with Mozmill](https://developer.mozilla.org/en/Thunderbird/Thunderbird_MozMill_Testing).
Mozmill is available as an addon and a python package. See [the installation page](./Installation) for instructions for how to get Mozmill set up on your system.
# The Mozmill Extension
[The Mozmill extension](https://addons.mozilla.org/en-US/firefox/addon/9018) comes with an integrated development environment, some test authoring tools, and a graphical interface to run the tests.
# Python Client
There is also a [Mozmill python package](http://pypi.python.org/pypi/mozmill) that invokes and runs a Gecko application, performs automatic test scripting, and accumulates and reports results.
## Running the command line client
After [installing](./Installation) the python package you can run Mozmill with the mozmill command. The mozmill command is run with one or more test (-t mytest.js) or test manifest (-m manifest.ini):
mozmill -m functional_tests.ini mozmill -t mytest.js -t myothertest.js
mozmill –help displays the available command-line options and more in-depth information about the command line utility. For the format and usage of test manifests, see http://hg.mozilla.org/automation/ManifestDestiny/file/tip/README.txt .
## Control flow
The Mozmill python package bundles the Mozmill and [jsbridge](./jsbridge) extensions into a profile on invocation.
Mozmill is run like:
mozmill -app firefox -b path/to/binary -t path/to/test.js [options]
This will do the following:
- the application, in this case firefox, will be looked for by [mozrunner](/en/Mozrunner)
- a [profile object](/en/Mozprofile) will be created of the type appropriate to the application under test
- the test.js file will be sent over the jsbridge where it is loaded and executed (see: [resource://mozmill/modules/frame.js](https://github.com/mozilla/mozmill/blob/master/mozmill/mozmill/extension/resource/modules/frame.js) )
- upon test run conclusion, the results will be reported by [pluggable event handlers](./EventHandlers)
## Example API Usage
Since Mozmill 2.0, the [MozMill class](https://github.com/mozilla/mozmill/blob/master/mozmill/mozmill/__init__.py) is usable as a robust API. An example API usage is available at https://github.com/mozilla/mozmill/tree/master/mozmill .
Python Mozmill is a test harness and an event dispatcher.
The Mozmill python package is built of a number of different package dependencies:
- [mozrunner](/en/Mozrunner) : Reliable start/stop/configuration of Mozilla Applications (Firefox, Thunderbird, etc.)
- [mozinfo](/en/Mozinfo) : unified Mozilla interface to system information
- [manifestparser](http://hg.mozilla.org/automation/ManifestDestiny) : parses test and addon manifests
See [Architecture](./Architecture) for additional information on program design.
## Event Dispatching
## Getting Data to and From the Tests
- the persisted object: a [JSObject](https://github.com/mozilla/mozmill/blob/master/jsbridge/jsbridge/jsobjects.py) that is persisted between tests even if the application under test is shutdown or restarted. Each [MozMill](https://github.com/mozilla/mozmill/blob/master/mozmill/mozmill/__init__.py) instance carries a persisted object. The amount of persisted data must be kept small, however, or [jsbridge](./jsbridge) will fail.
- create your own [JSObject](https://github.com/mozilla/mozmill/blob/master/jsbridge/jsbridge/jsobjects.py) for finer-tuned control getting data to and from the tests.
See also [Bug 668550 - python should have some way of transfering data to the test on the JS side](https://bugzilla.mozilla.org/show_bug.cgi?id=668550)
## Python Callbacks
See the mutt [python_callbacks.js test](https://github.com/mozilla/mozmill/blob/master/mutt/mutt/tests/js/frame/python_callback.js) and accompanying [python_callbacks.py](https://github.com/mozilla/mozmill/blob/master/mutt/mutt/tests/js/frame/python_callback.py) for an example.
It is important for successful runs that the python callback is fired successfully. Otherwise a [jsbridge](./jsbridge) error will occur via the python error and the harness will fail.
## Restart and Shutdown
- user shutdown : the test indicates a shutdown or restart. This does not stop the browser but indicates that a further action will cause a restart or shutdown (such as triggering Ctrl+Q)
- runner shutdown : the test tells the runner to shutdown or restart, potentially giving a next test to run in the same file.
Both cases fire an [event](./EventHandlers), mozmill.userShutdown, that lets the python harness anticipate the type of shutdown or restart. The following parameters are sent with the event:
- user : true or false; whether the shutdown was signalled by a “user” event
- restart: true or false; whether the shutdown is a restart or not
- next: name of the next test function to run, in the current test file, if any; otherwise the next test file (if any) will be run
- resetProfile: true or false; whether to reset the profile to the beginning state. Note that this is not available to user restart events as there is a race condition that does not permit the profile to be reliably reset before application restart
See the methods startUserShutdown, restartApplication, and stopApplication on the [MozMillController](https://github.com/mozilla/mozmill/blob/master/mozmill/mozmill/extension/resource/modules/controller.js) for specifics.
Additionally, mozmill –restart signals a harness restart between every test file. This is good for isolating test behaviour, but negative in that the browser restart causes the run to take longer.
# Learning Mozmill Testing
- [Introduction to Mozmill](https://developer.mozilla.org/en/Mozmill/First_Steps/Tutorial%3a_Introduction_to_Mozmill) : detailed tutorial that walks through introducing each Mozmill API object as it is needed
- [Mozmill tests](https://developer.mozilla.org/en/Mozmill_Tests) : how to setup and run the [QA](http://quality.mozilla.org/) [mozmill tests](http://hg.mozilla.org/qa/mozmill-tests/)
## Mozmill Test API
- [controller object reference](https://developer.mozilla.org/en/Mozmill/Mozmill_Controller_Object)
- [element object reference](https://developer.mozilla.org/en/Mozmill/Mozmill_Element_Object) (Mozmill 2.0+)
- [finding mozmill elements](https://developer.mozilla.org/en/Mozmill/Finding_Mozmill_Elements) (Mozmill 2.0+)
- [mozmill object reference](https://developer.mozilla.org/en/Mozmill/Mozmill_Base_Object_Interfaces)
- [extending the element hierarchy](https://developer.mozilla.org/en/Mozmill/Mozmill_Element_Object/Extending_the_MozMill_element_hierarchy)
- [elementslib object reference](https://developer.mozilla.org/en/Mozmill/Mozmill_Elements_Library_Object) (deprecated in Mozmill 2.0 - see [finding mozmill elements](https://developer.mozilla.org/en/Mozmill/Finding_Mozmill_Elements))
- [assertions API reference](https://developer.mozilla.org/en/Mozmill/Mozmill_Unit_Test_Framework)
# Finding and Reporting Bugs
Mozmill is under active development. Check out the [Auto-tools Mozmill project page](https://wiki.mozilla.org/Auto-tools/Projects/Mozmill) for information on development. If you think you’ve found a bug in Mozmill, please check the [list of existing bugs](https://bugzilla.mozilla.org/buglist.cgi?resolution=—&component=Mozmill&product=Testing). If your found bug is not listed there, please [file a new bug](https://bugzilla.mozilla.org/enter_bug.cgi?product=Testing&component=Mozmill) in [bugzilla](https://bugzilla.mozilla.org/) under the “Testing” Product and “Mozmill” Component. Please provide as much as possible details and attach the Mozmill test if available, which shows the problem. Thanks for helping us make Mozmill better!
# Updating the Documentation
The [MDN](http://developer.mozilla.org/en/Mozmill) pages are mirrored from the [mozmill repository](https://github.com/mozilla/mozmill). See the notes on our [documentation strategy](./Documentation) .
Several online resources exist for Mozmill:
- [MDN Mozmill page](http://developer.mozilla.org/en/Mozmill)
- [github repository](https://github.com/mozilla/mozmill)
- [Python Package Index page](http://pypi.python.org/pypi/mozmill)
- [Auto-tools Mozmill project page](https://wiki.mozilla.org/Auto-tools/Projects/Mozmill) for the development of Mozmill
In addition a #mozmill channel exists on irc://irc.mozilla.org/ . Please stop by and say hi!
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