commit | fc793094912b67b45a94d101819bffb9b9307710 | [log] [tgz] |
---|---|---|
author | Anders Hartvoll Ruud <andruud@chromium.org> | Thu Mar 19 09:11:20 2020 |
committer | Blink WPT Bot <blink-w3c-test-autoroller@chromium.org> | Thu Mar 19 09:33:53 2020 |
tree | 348f67b8f5cb7adc77309666fa23a9a9aeb3ad9d | |
parent | 6a665f63ae39b552f60b971f11c34b215861fcb3 [diff] |
[css-variables] Custom props with invalid var() should behave as 'unset' We currently have a (WPT-enforced) bug where custom properties that reference guaranteed-invalid values [1] behave themselves as guaranteed- invalid. This is not correct per spec, which requires the custom property to behave as 'unset' in this case. This was clarified in [2], although the spec has described this behavior long before that. Unfortunately Firefox has the same issue. Safari on the other hand, does implement it correctly. [1] https://drafts.csswg.org/css-variables/#guaranteed-invalid [2] https://github.com/w3c/csswg-drafts/issues/4075 Bug: 980930 Change-Id: I84a0da3aad6b72b574009d560eb868632769098a Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2108026 Commit-Queue: Anders Hartvoll Ruud <andruud@chromium.org> Reviewed-by: Xiaocheng Hu <xiaochengh@chromium.org> Cr-Commit-Position: refs/heads/master@{#751636}
The web-platform-tests Project is a cross-browser test suite for the Web-platform stack. Writing tests in a way that allows them to be run in all browsers gives browser projects confidence that they are shipping software that is compatible with other implementations, and that later implementations will be compatible with their implementations. This in turn gives Web authors/developers confidence that they can actually rely on the Web platform to deliver on the promise of working across browsers and devices without needing extra layers of abstraction to paper over the gaps left by specification editors and implementors.
The most important sources of information and activity are:
#testing
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Clone or otherwise get https://github.com/web-platform-tests/wpt.
Note: because of the frequent creation and deletion of branches in this repo, it is recommended to “prune” stale branches when fetching updates, i.e. use git pull --prune
(or git fetch -p && git merge
).
See the documentation website and in particular the system setup for running tests locally.
The wpt
command provides a frontend to a variety of tools for working with and running web-platform-tests. Some of the most useful commands are:
wpt serve
- For starting the wpt http serverwpt run
- For running tests in a browserwpt lint
- For running the lint against all testswpt manifest
- For updating or generating a MANIFEST.json
test manifestwpt install
- For installing the latest release of a browser or webdriver server on the local machine.On Windows wpt
commands must be prefixed with python
or the path to the python binary (if python
is not in your %PATH%
).
python wpt [command]
Alternatively, you may also use Bash on Ubuntu on Windows in the Windows 10 Anniversary Update build, then access your windows partition from there to launch wpt
commands.
Please make sure git and your text editor do not automatically convert line endings, as it will cause lint errors. For git, please set git config core.autocrlf false
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. If you see other branches in the repository, you can generally safely ignore them.
Save the Web, Write Some Tests!
Absolutely everyone is welcome to contribute to test development. 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:
git checkout -b topic
../wpt lint
as described above.If you spot an issue with a test and are not comfortable providing a pull request per above to fix it, please file a new issue. Thank you!