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Re: Review comments on css3-background/src/background-clip-007.html

From: Gérard Talbot <css21testsuite@gtalbot.org>
Date: Wed, 31 Oct 2012 17:03:25 -0400
Message-ID: <332cc3601a16987a0e329e1add15fcf3.squirrel@ed-sh-cp3.entirelydigital.com>
To: "Julien Chaffraix" <jchaffraix@webkit.org>
Cc: "Public CSS test suite mailing list" <public-css-testsuite@w3.org>

Le Mer 31 octobre 2012 13:36, Julien Chaffraix a écrit :
> Hey Gérard,
>> http://test.csswg.org/source/approved/css3-background/src/background-clip-007.html
>> The following comments are in the Shepherd's background-clip-007 file:
>> http://test.csswg.org/shepherd/testcase/background-clip-007/spec/CSS3-BACKGROUND/#comment-bc5aa48c1aca
>> I'm relisting them here for various reasons.
> Thanks for the detailed comments. I agree that your approach is a lot
> cleaner.
> What's the best way forward? Would you like me to move the completely
> new test based on your approach back to submitted/ so that you can
> review it at your leisure or just modify the test inline based on your
> comments?


Either way is fine with me.

Another possibility is that we could co-author those 3 tests.

You can use


to replace


and you can add

which is a minor variation of background-clip-236

You can use


to replace


You can use


to replace


I have added a few more details in the assert of
background-clip-236.html, background-clip-238.html and

'height: auto', 'width: auto', 'padding: 0px' have been deliberately
added into those tests although they were not needed since those are
initial, default values. This reinforces understanding, self-explanatory
sense of those tests.

One word about testing background-clip: border-box. Because this is the
initial value of background-clip, there is never a good, reliable,
entirely trustworthy way to test initial default values. Except if we
could "inject"/alter a modification of the user agent stylesheet where
background-clip would be using another default, initial value other than


Another idea is to reuse the same code (from these 4 tests) and to do
background-clip with background-image (for content-box and padding-box
and border-box) in which the image would be "support/100x100-red.png"
and "support/black96x96.png" .

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Received on Wednesday, 31 October 2012 21:03:56 UTC

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