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Re: [css-writing-modes-3] Additional review of vertical-alignment-new-00? tests

From: Shiozawa, Hajime <hajime.shiozawa@gmail.com>
Date: Wed, 2 Sep 2015 23:54:25 +0900
Message-ID: <CAHSwuKND8hJOOUOhfE8AKBSB9HF1Bmr2gy-nys0MKb3Q+Pm6Xw@mail.gmail.com>
To: Gérard Talbot <css21testsuite@gtalbot.org>
Cc: Public CSS test suite mailing list <public-css-testsuite@w3.org>, Koji Ishii <kojiishi@gluesoft.co.jp>
Hi Gérard,

I have fixed.
https://hg.csswg.org/test/rev/b8572658320e

And I have changed other tests and renamed it! (and removed all old tests.)
https://hg.csswg.org/test/rev/02f4c97c2264
https://hg.csswg.org/test/rev/e8f5c3031748
https://hg.csswg.org/test/rev/b3c0ccd280f3

Hajime.




2015-09-01 11:25 GMT+09:00 Gérard Talbot <css21testsuite@gtalbot.org>:

> Le 2015-08-29 03:15, 塩澤 元 a écrit :
>
>> Gérard,
>>
>> I've committed change which set span#orange's line-height inherited.
>> https://hg.csswg.org/test/rev/b7ef4be925f3
>>
>> I attached a explanation figure  (explanation-vertical-align-test.png).
>>
>
>
> Hajime, your explanation figure is excellent! :)
>
>
> After reviewing, I will apply this change other tests.
>>
>
>
> Your previous tests were okay, acceptable, good also, you know.
>
>
> I have studied about the line-height spec.
>> Now I understand why the area created by line-height cannot be painted...
>> Thank you!
>>
>> Hajime
>>
>
>
>
> http://test.csswg.org/source/css-writing-modes-3/vertical-alignment-new-002.xht
>
> Your current vertical-alignment-new-002.xht needs a bit of tuning.
>
> A)
>
> You could add 'margin-top: -1em' like this:
>
>     span#orange
>     {
>       font-size: 0.5em;
>       color: orange;
>       margin-top: -1em;
>       vertical-align: top;
>     }
>
>
> so that the text of the pass-fail-conditions sentence would make more
> sense.
>
>
> or B)
>
> you could replace
>
> <p>Test passes if the right edge of an blue square is aligned with the
> left edge of a orange square.</p>
>
> with
>
> <p>Test passes if the bottom-right corner of a blue square is touching the
> top-left corner of an orange square.</p>
>
>
> - - - - - - - -
>
>
>
> http://test.csswg.org/source/css-writing-modes-3/vertical-alignment-new-004.xht
>
> Please change
>
> line 15: font: 3.75em/3 Ahem; /* computes to 60px/90px */
>
> to
>
> font: 3.75em/3 Ahem; /* computes to 60px/180px */
>
> and then please add
>
> <link rel="reviewer" title="Gérard Talbot" href="
> http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!--
> 2015-09-01 -->
>
>
> - - - - - - - -
>
>
>
> http://test.csswg.org/source/css-writing-modes-3/vertical-alignment-new-004-ref.xht
>
> Modify line 15 like this:
>
> line 15:      padding-left: 60px; /* =  position of orange squares */
>     }
>
>
> and then you can remove lines 18 to 21:
>
> line 18:    img + br + img
>              {
>                padding-left: 60px; /* = the position of second orange
> square*/
> line 21:     }
>
> Then please add
>
> <link rel="reviewer" title="Gérard Talbot" href="
> http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!--
> 2015-09-01 -->
>
>
> Gérard
>
>
>
>
>>
>> 2015-08-13 18:27 GMT+09:00 Gérard Talbot <css21testsuite@gtalbot.org>:
>>
>> Le 2015-08-13 03:58, 塩澤 元 a écrit :
>>>
>>> Gérard,
>>>>
>>>> Thank you for the detailed explanation.
>>>> I have learned CSS knowledge a lot from you!
>>>>
>>>> I have changed the assert description and line-height comment.
>>>> https://hg.csswg.org/test/rev/828918d30919
>>>>
>>>> Another thing is that the test, for practical purposes, uses an inline
>>>>
>>>>>
>>>>> box that has no top-half-leading outside its content area (by setting
>>>> on
>>>> purpose, deliberately, the span#orange's line-height to 1, that is what
>>>> the
>>>> test does) so that the orange squares all line up vertically at one
>>>> side.
>>>>
>>>> The test would be tougher for browsers and for the test author (but
>>>>>
>>>>> doable) if the span#orange's line-height was inherited.
>>>> OK, I see.
>>>> I'm considering about the way to test when span#orange's line-height was
>>>> inherited (not setting line-height to 1).
>>>>
>>>>
>>> Do not worry about that for now. I have such tests. The "magic" number is
>>> to use 3; a line-height of 3.
>>>
>>> I don't have accurate understanding about line-height. Now I'm studying
>>>
>>>> about it reading the spec.
>>>>
>>>>
>>> You can examine the tests I did on line-height; I think these tests will
>>> help you understand a bit more line-height and some CSS2.1 statements.
>>>
>>>
>>>
>>> http://test.csswg.org/shepherd/search/testcase/spec/css21/section/10.8/author/gtalbot/
>>>
>>> A few tests in CSS2.1 test suite on line-height and vertical-align are
>>> incorrect and have been reported as such; some (non-reviewed) others are
>>> doubtful to say the least or they are simply *not* testing what they
>>> believe to be testing or what they claim to be testing.
>>>
>>> There are some tutorials on line-height and vertical-align but often they
>>> have errors and misunderstandings.
>>>
>>>
>>> Overall, 'line-height' and 'vertical-align' are 2 properties that are
>>> very
>>> often misunderstood by web authors. The area created when line-height is
>>> set on an inline non-replaced box can not be painted and you can not put
>>> a
>>> border or an outline around it. So, it's rather difficult to represent.
>>> And
>>> I am certain, sure that section 10.8 and 10.8.1 should have judicious
>>> schemas, diagrams, etc... to illustrate the concepts involved. I have
>>> said
>>> so several times in www-style mailing list:
>>>
>>> [CSS21] Section 10.8 on line-height and vertical-align should have
>>> schemas
>>> and examples
>>> http://lists.w3.org/Archives/Public/www-style/2009Apr/0519.html
>>> http://lists.w3.org/Archives/Public/www-style/2009May/0079.html
>>>
>>> Re: line-height suggestions and easier alignment
>>> http://lists.w3.org/Archives/Public/www-style/2012May/0700.html
>>>
>>> Line-height property has a very different - totally different - meaning
>>> when set on a block element and when set on an inline element: this is
>>> also often misunderstood.
>>>
>>> Gérard
>>>
>>>
>>>
>>>
>>>>
>>>>
>>>> 2015-08-13 6:15 GMT+09:00 Gérard Talbot <css21testsuite@gtalbot.org>:
>>>>
>>>> Hajime,
>>>>
>>>>>
>>>>> vertical-align - 'text-bottom' and vertical-rl writing-mode
>>>>>
>>>>>
>>>>>
>>>>> http://test.csswg.org/source/css-writing-modes-3/vertical-alignment-new-006.xht
>>>>>
>>>>> <meta name="assert" content="This test checks the position of inline
>>>>> box
>>>>> with vertical align property. When 'writing-mode' is 'vertical-rl',
>>>>> 'vertical-align' is 'text-bottom', the physical left (logical bottom,
>>>>> namely 'line-under') edge of an inline non-replaced box is aligned with
>>>>> the
>>>>> left side (logical bottom, namely 'line-under') of parent's content
>>>>> area."
>>>>> />
>>>>>
>>>>> I propose these minor changes:
>>>>>
>>>>> <meta name="assert" content="This test checks the position of an inline
>>>>> non-replaced box with vertical align property. When 'writing-mode' is
>>>>> 'vertical-rl', 'vertical-align' is 'text-bottom', the physical left
>>>>> (logical bottom) edge of an inline non-replaced box is aligned with the
>>>>> left side (logical bottom) of parent's content area." />
>>>>>
>>>>> Why these changes? An inline box does not have a line-under side; the
>>>>> line
>>>>> box has a line-under side. Line-under should be used for identifying
>>>>> one
>>>>> line box side only. If there was an *inline-under* concept, then that
>>>>> would
>>>>> be good usage. Also, the parent's content area is not the inline box
>>>>> and
>>>>> is
>>>>> not the line box; so it is not a good usage either. The verb "is
>>>>> aligned
>>>>> with" or "is flush with" (which is used by CSS2.1, section 9.5) does
>>>>> not
>>>>> go
>>>>> well with the "side" noun you are using.
>>>>>
>>>>> Same thing with
>>>>> vertical-align - 'text-bottom' and vertical-lr writing-mode
>>>>>
>>>>>
>>>>>
>>>>> http://test.csswg.org/source/css-writing-modes-3/vertical-alignment-new-007.xht
>>>>>
>>>>>
>>>>> Another thing is that the test, for practical purposes, uses an inline
>>>>> box
>>>>> that has no top-half-leading outside its content area (by setting on
>>>>> purpose, deliberately, the span#orange's line-height to 1, that is what
>>>>> the
>>>>> test does) so that the orange squares all line up vertically at one
>>>>> side.
>>>>> The test would be tougher for browsers and for the test author (but
>>>>> doable)
>>>>> if the span#orange's line-height was inherited.
>>>>>
>>>>> - - - - - - - - -
>>>>>
>>>>> vertical-align - 'bottom' and vertical-rl writing-mode
>>>>>
>>>>>
>>>>>
>>>>> http://test.csswg.org/source/css-writing-modes-3/vertical-alignment-new-008.xht
>>>>>
>>>>> line 16: font: 3.75em/3 Ahem; /* computes to 60px/90px */
>>>>>
>>>>> should be
>>>>>
>>>>> font: 3.75em/3 Ahem; /* computes to 60px/180px */
>>>>>
>>>>> <meta name="assert" content="This test checks the position of inline
>>>>> box
>>>>> with vertical align property. When 'writing-mode' is 'vertical-rl',
>>>>> 'vertical-align' is 'bottom', the physical left (logical bottom, namely
>>>>> 'line-under') edge of inline-box attaches the physical left (logical
>>>>> bottom, namely 'line-under') of line-box." />
>>>>>
>>>>> I propose these minor changes:
>>>>>
>>>>> <meta name="assert" content="This test checks the position of inline
>>>>> non-replaced box with vertical align property. When 'writing-mode' is
>>>>> 'vertical-rl', 'vertical-align' is 'bottom', the physical left (logical
>>>>> bottom) edge of an inline non-replaced box is aligned with the physical
>>>>> left (logical bottom) edge of its line box." />
>>>>>
>>>>> - - - - - - - - -
>>>>>
>>>>> vertical-align - 'bottom' and vertical-lr writing-mode
>>>>>
>>>>>
>>>>>
>>>>> http://test.csswg.org/source/css-writing-modes-3/vertical-alignment-new-009.xht
>>>>>
>>>>> font: 3.75em/3 Ahem; /* computes to 60px/90px */
>>>>>
>>>>> should be
>>>>>
>>>>> font: 3.75em/3 Ahem; /* computes to 60px/180px */
>>>>>
>>>>> - - - - - - -
>>>>>
>>>>> vertical-align - 'text-top' and vertical-lr writing-mode
>>>>>
>>>>>
>>>>>
>>>>> http://test.csswg.org/source/css-writing-modes-3/vertical-alignment-new-005.xht
>>>>>
>>>>> An inline non-replaced box does not have a line-over edge. It's not a
>>>>> best, appropriate usage of line-over edge. 'line-over', 'line-under',
>>>>> 'line-left', 'line-right' are just logical terms for identifying each
>>>>> or
>>>>> which sides of a line box we're referring to.
>>>>>
>>>>> - - - - - - -
>>>>>
>>>>> Overall, do not use "line-box" and "inline-box"; use "line box" and
>>>>> "inline box".
>>>>>
>>>>> The CSS2.1 uses this kind of wording (verb) when comparing position of
>>>>> 2
>>>>> edges:
>>>>>
>>>>> An edge is [ below | above | flush with | aligned with | on the left
>>>>> of |
>>>>> on the right of ] another edge.
>>>>>
>>>>> Gérard
>>>>> --
>>>>> Test Format Guidelines
>>>>> http://testthewebforward.org/docs/test-format-guidelines.html
>>>>>
>>>>> Test Style Guidelines
>>>>> http://testthewebforward.org/docs/test-style-guidelines.html
>>>>>
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>>>>> http://testthewebforward.org/docs/test-templates.html
>>>>>
>>>>> CSS Naming Guidelines
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>>>>>
>>>>> Test Review Checklist
>>>>> http://testthewebforward.org/docs/review-checklist.html
>>>>>
>>>>> CSS Metadata
>>>>> http://testthewebforward.org/docs/css-metadata.html
>>>>>
>>>>>
>>>>> --
>>> Test Format Guidelines
>>> http://testthewebforward.org/docs/test-format-guidelines.html
>>>
>>> Test Style Guidelines
>>> http://testthewebforward.org/docs/test-style-guidelines.html
>>>
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>>>
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>>>
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>>>
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>>>
>>>
> --
> Test Format Guidelines
> http://testthewebforward.org/docs/test-format-guidelines.html
>
> Test Style Guidelines
> http://testthewebforward.org/docs/test-style-guidelines.html
>
> Test Templates
> http://testthewebforward.org/docs/test-templates.html
>
> CSS Naming Guidelines
> http://testthewebforward.org/docs/css-naming.html
>
> Test Review Checklist
> http://testthewebforward.org/docs/review-checklist.html
>
> CSS Metadata
> http://testthewebforward.org/docs/css-metadata.html
>



-- 
# 塩澤 元 (Shiozawa, Hajime)
# mail: hajime.shiozawa@gmail.com
Received on Wednesday, 2 September 2015 14:54:54 UTC

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