This is the test suites from a number of W3C Working Groups, including the HTML Working Group, the Web Apps Working Group, the Device APIs Working Group, and the Web Apps Security Working Group.
The tests are designed to be run from your local computer. The test environment requires Python 2.7+ (but not Python 3.x).
To get the tests running, you need to set up the test domains in your /etc/hosts (or platform-equivalent) file. The following entries are required:
127.0.0.1 web-platform.test
127.0.0.1 www.web-platform.test
127.0.0.1 www1.web-platform.test
127.0.0.1 www2.web-platform.test
127.0.0.1 xn--n8j6ds53lwwkrqhv28a.web-platform.test
127.0.0.1 xn--lve-6lad.web-platform.test
Because web-platform-tests uses git submodules, you must ensure that these are up to date. In the root of your checkout, run:
git submodule update --init --recursive
The test environment can then be started using
python serve.py
This will start HTTP servers on two ports and a websockets server on
one port. By default one web server starts on port 8000 and the other
ports are randomly-chosen free ports. Tests must be loaded from the
first HTTP server in the output. To change the ports, edit the
config.json file, for example, replacing the part that reads:
"http": [8000, "auto"]
to some port of your choice e.g.
"http":[1234, "auto"]
There is a test runner in tools/runner that is designed to provide a
convenient way to run the web-platform tests in-browser. It will run
testharness.js tests automatically but requires manual work for
reftests and manual tests.
In order to use the runner, it is first necessary to generate a test
manifest. This must be called MANIFEST.json and placed in the
web-platform-tests root. To generate this navigate to the root
directory and run
python tools/scripts/manifest.py MANIFEST.json
Running the tests requires that the test environment be activated as
described above. The runner can be found at /tools/runner/index.html
on the local server i.e.
http://web-platform.test:8000/tools/runner/index.html
in the default configuration.
The master branch is automatically synced to:
http://w3c-test.org/web-platform-tests/master/. Likewise the CR
branch (that matches the test suites used for the Candidate
Recommendations of HTML5, Canvas 2D and Microdata) to:
http://w3c-test.org/web-platform-tests/CR/.
Pull requests that have been checked are automatically mirrored to
https://w3c-test.org/web-platform-tests/submissions/.
Each top-level directory represents a W3C specification: the name matches the shortname used after the canonical address of the said specification under http://www.w3.org/TR/ .
For some of the specifications, the tree under the top-level directory represents the sections of the respective documents, using the section IDs for directory names, with a maximum of three levels deep.
So if you're looking for tests in HTML for "The History interface",
they will be under html/browsers/history/the-history-interface/.
Various resources that tests depend on are in common, images, and
fonts.
If you're looking at a section of the specification and can't figure out where the directory is for it in the tree, just run:
node tools/scripts/id2path.js your-id
In the vast majority of cases the only branch that you should need
to care about is master.
There is another branch called CR. This is a strict subset of
master that is limited to features that are found in the Candidate
Recommendation version of the relevant specifications.
If you see other branches in the repository, you can generally safely
ignore them. Please note that branches prefixed with temp/ are
temporary branches and can get deleted at some point. So don't
base any work off them unless you want to see your work destroyed.
Save the Web, Write Some Tests!
Absolutely everyone is welcome (and even encouraged) to contribute to test development, so long as you fulfill the contribution requirements detailed in the Contributing Guidelines. No test is too small or too simple, especially if it corresponds to something for which you've noted an interoperability bug in a browser.
The way to contribute is just as usual:
- fork this repository (and make sure you're still relatively in sync with it if you forked a while ago);
- create a branch for your changes,
git checkout -b submission/your-name; - make your changes;
- push that to your repo;
- and send in a pull request based on the above.
Please make your pull requests either to master or to a feature
branch (but not to CR).
We can sometimes take a little while to go through pull requests because we have to go through all the tests and ensure that they match the specification correctly. But we look at all of them, and take everything that we can.
If you wish to contribute actively, you're very welcome to join the [email protected] mailing list (low traffic) by signing up to our mailing list.