- From: Erik Dahlstrom <ed@opera.com>
- Date: Fri, 15 Jun 2012 10:05:27 +0200
- To: "public-svg-wg@w3.org" <public-svg-wg@w3.org>
Minutes:
http://www.w3.org/2012/06/14-svg-minutes.html
and as text:
[1]W3C
[1] http://www.w3.org/
- DRAFT -
SVG Working Group Teleconference
14 Jun 2012
[2]Agenda
[2]
http://lists.w3.org/Archives/Public/public-svg-wg/2012AprJun/0096.html
See also: [3]IRC log
[3] http://www.w3.org/2012/06/14-svg-irc
Attendees
Present
Cyril, birtles, +61.2.980.5.aaaa, nikos,
+1.415.832.aabb, krit, +1.612.789.aacc, Tav, ed, ChrisL
Regrets
Chair
SV_MEETING_CHAIR
Scribe
ed
Contents
* [4]Topics
1. [5]Status of Shepherd integration / Test The Web
Forward
2. [6]strokebbox
* [7]Summary of Action Items
__________________________________________________________
<trackbot> Date: 14 June 2012
<krit> nikos: no party?
<nikos> heh. It's a pretty exclusive party
<birtles> ed, are you still having trouble joining?
<scribe> scribeNick: ed
Status of Shepherd integration / Test The Web Forward
[8]http://www.w3.org/mid/4FD260CC.5050404@w3.org
[8] http://www.w3.org/mid/4FD260CC.5050404@w3.org
DS: heycam wanted to work on that, not sure if there's any
progress on it
... the focus for svg is for css transforms, we can do it with
the css testsuite at the moment
... and then transfer the tests later
ED: is there any info on how to contribute on the TTWF site?
DS: there will be a presentation on how to do that
ED: just making sure the materials will be available online as
the event takes place, to enable people participating even
though they're not physically there
DS: I will publish them right after doug's presention
TB: peter linss is looking at integrating some of the changes I
made for converting html/css test to svg
... it's perhaps not generic enough, my code was for the
submitted adobe tests
ED: so there was a question about whether a pass on a test
(regardless of the format) should be a pass for that feature or
not
TB: i think you have to have separate results, e.g for
transforms in svg and for transforms in html/css
... I don't think any of the browsers support the new
transforms things for svg
ED: anything else needed from us in time for the event?
TB: would be good to have a couple of approved tests in our
repo
DS: don't think that's necessary
... we can use the same process as the csswg uses for
review/approval
... can=need
TB: we used to require tests to have a reviewer, are we giving
up on that?
DS: no, css requires that too
... you have a creator, a reviewer, and a third person to
approve it
... we could say reviewer and approver could be the same person
if we want
TB: how does the test become approved?
DS: the shepherd tool moves the approved tests to another
directory
TB: right now we have nothing in our approved directory
... shouldn't we have a few in there?
DS: I think so yes
... only a few people have committed tests so far
... I'll look at reviewing and approving some of the tests
TB: i'll move some of my tests to the submitted folder
DS: right, only those will be picked up by shepherd
<scribe> ACTION: Dirk to review (and approve) Tav's submitted
svg2-tests [recorded in
[9]http://www.w3.org/2012/06/14-svg-minutes.html#action01]
<trackbot> Created ACTION-3308 - Review (and approve) Tav's
submitted svg2-tests [on Dirk Schulze - due 2012-06-21].
ED:
[10]https://dvcs.w3.org/hg/svg2-tests/raw-file/tip/contributors
/tavmjong/submitted/template_001.svg is this the template to
use?
[10]
https://dvcs.w3.org/hg/svg2-tests/raw-file/tip/contributors/tavmjong/submitted/template_001.svg
TB: yes
<ChrisL>
[11]http://www.w3.org/Graphics/SVG/WG/wiki/Test_Suite_Overview#
How_to_Create_Tests
[11]
http://www.w3.org/Graphics/SVG/WG/wiki/Test_Suite_Overview#How_to_Create_Tests
DS: all tests must be BSD-licensed, right?
CL: yes
<ChrisL>
[12]http://www.w3.org/Consortium/Legal/2008/03-bsd-license.html
[12] http://www.w3.org/Consortium/Legal/2008/03-bsd-license.html
TB: how does it work with linking to spec sections, since the
spec is still pretty much in flux?
<ChrisL> template should be the same as
[13]http://www.w3.org/Graphics/SVG/WG/wiki/SVG2/Testing_Require
ments#Revised_structure_after_comment_by_Peter_Linss
[13]
http://www.w3.org/Graphics/SVG/WG/wiki/SVG2/Testing_Requirements#Revised_structure_after_comment_by_Peter_Linss
DS: you should link to the toplevel section
CL: so the file ED linked to isn't the latest template, should
be revised
TB: I thought we agreed to allow link elements
DS: I think we have a resolution for that already
CL: for link peter said it was easier for him to import if it
was in the html namespace
... this is all documented in the wikipage I linked to
... this is based on discussions with peter last week
DS: so the wikipage represents what we want, ok
<scribe> ACTION: tav to update the svg2 test template
[14]https://dvcs.w3.org/hg/svg2-tests/file/tip/contributors/tav
mjong/submitted/template_001.svg to be in sync with the agreed
format in
[15]http://www.w3.org/Graphics/SVG/WG/wiki/SVG2/Testing_Require
ments#Revised_structure_after_comment_by_Peter_Linss [recorded
in [16]http://www.w3.org/2012/06/14-svg-minutes.html#action02]
[14]
https://dvcs.w3.org/hg/svg2-tests/file/tip/contributors/tavmjong/submitted/template_001.svg
[15]
http://www.w3.org/Graphics/SVG/WG/wiki/SVG2/Testing_Requirements#Revised_structure_after_comment_by_Peter_Linss
<trackbot> Created ACTION-3309 - Update the svg2 test template
[17]https://dvcs.w3.org/hg/svg2-tests/file/tip/contributors/tav
mjong/submitted/template_001.svg to be in sync with the agreed
format in
[18]http://www.w3.org/Graphics/SVG/WG/wiki/SVG2/Testing_Require
ments#Revised_structure_after_comment_by_Peter_Linss [on
Tavmjong Bah - due 2012-06-21].
[17]
https://dvcs.w3.org/hg/svg2-tests/file/tip/contributors/tavmjong/submitted/template_001.svg
[18]
http://www.w3.org/Graphics/SVG/WG/wiki/SVG2/Testing_Requirements#Revised_structure_after_comment_by_Peter_Linss
BB: did we come to a conclusion on the format for the reference
images?
CL: we did discuss that
... if possible we agreed that if it's easy to do solid green
for pass for example then that's preferred, but there are cases
where that can give false positives and cases where it's very
difficult, like filters
BB: right... another suggestion is to use one standard text
string for tests with text
TB: I have objections to having just green rects
BB: in gecko we use tens of thousands of tests, it's easy to
quickly see pass if the pass images are always green
DS: if you see green it's passed, if you see red it's failed,
basic principle
<Tav>
[19]http://tavmjong.free.fr/SVG/svg2-tests/contributors/tavmjon
g/incoming/
[19]
http://tavmjong.free.fr/SVG/svg2-tests/contributors/tavmjong/incoming/
TB: here are the transforms tests i wrote a while ago
... red indicates failure
... and you can tell what's being tested
BB: how important is it to know what's being tested?
TB: in inkscape it was useful, to show someone
<krit>
[20]http://dev.w3.org/csswg/css3-transforms/#transform-function
s
[20] http://dev.w3.org/csswg/css3-transforms/#transform-functions
BB: if inkscape had a testsuite with 10k tests, then it's still
not easy
DS: every test is specified to test one specific thing, it's
testing a part of the spec
<krit>
[21]http://test.csswg.org/harness/test/CSS3-TRANSFORMS_DEV/sing
le/svg-matrix-008/format/html5/
[21]
http://test.csswg.org/harness/test/CSS3-TRANSFORMS_DEV/single/svg-matrix-008/format/html5/
DS: for that test it's just the matrix value
... it has a red rect behind that will show if there's
something wrong
TB: but you can't tell what it's testing just by looking at it
DS: the filename tells you, and the test metadata
... every test should describe what it's testing inside the
metadata
... and the pass criteria
BB: one difference is that you should be able to look at a test
and see what it's testing, but that's not so important in an
automated system
<krit>
[22]http://test.csswg.org/harness/test/CSS3-TRANSFORMS_DEV/sing
le/svg-matrix-008/format/html5/
[22]
http://test.csswg.org/harness/test/CSS3-TRANSFORMS_DEV/single/svg-matrix-008/format/html5/
DS: right, because then the automated engine doesn't care what
it's testing, just compares the results
... it's up to the author to provide the information
... in the metadata, but it should be there
... I think it's quite clear what it's testing
TB: what do people think?
CL: valuable to run automated tests, but when you get the list
of failed tests it's useful if a human can quickly tell whats
wrong
... and then it's useful to know what those tests are testing
exactly
... this means we should have welldocumented testcases
DS: that's why we do review on them
TB: maybe we should have them separate? it's nice to have to
some visual tests (like in SVG 1.1)
DS: we have reftests that can do that, two images have to look
the same, otherwise it's a fail
... I agree that visual tests are good, and that if you see red
it's failed
<krit>
[23]http://test.csswg.org/harness/test/CSS3-TRANSFORMS_DEV/sing
le/svg-scale-001/format/html5/
[23]
http://test.csswg.org/harness/test/CSS3-TRANSFORMS_DEV/single/svg-scale-001/format/html5/
DS: here is a test, two rects...
<krit>
[24]http://test.csswg.org/harness/test/CSS3-TRANSFORMS_DEV/sing
le/svg-skewx-020/format/html5/
[24]
http://test.csswg.org/harness/test/CSS3-TRANSFORMS_DEV/single/svg-skewx-020/format/html5/
DS: this next test fails in all browsers
... anyway, we can also discuss further on the mailinglist
<ChrisL> the 'show reference' link is broken btw
DS: and it means others can follow the discussion
CL: i'd like to say another thing about the template
... the template doesn't use a particular font
... which means every implentation may use a different font
... suggest we standardize on a particular WOFF font
DS: but we don't need that with reftests, because it ensures
the font is the same on both reference and testcase
... AHEM is often used in css tests
CL: ahem is not always useful though
DS: I think it's wrong to require a particular font
CL: why is consistency bad?
DS: but it doesn't matter, because we have reftest
CL: what is the problem? we've had unreadable text, and people
assuming a particular default font
... if you're testing svg it's not going to reflow text for
example
DS: if you add more dependencies then that's an additional
thing that can fail
CL: all browsers support this, explain why the pass criteria
would make it fail?
DS: but you add unnecessary complexity
CL: so should we also take out the metadata?
DS: that's different
ED: I think it's quite nice to have consistent fonts used
throughout the testsuite
... looking back at the SVG testsuite, yes svgfonts/webfonts is
additional complexity, but it's also nice to get consistent
rendering across platforms
DS: webfonts are a requirement or just something we support in
svg?
TB: inkscape doesn't support webfonts
DS: the problem is that if webfonts isn't a requirement for svg
CL: we have resolved that webfonts, and woff, are a requirement
for svg
ED: so, can we agree on having a consistent font used when
possible?
DS: don't want to require webfonts for the tests
TB: dirks tests are simple, don't require labeling, but svg1.1
tests are more visual
... with labels and so on
nikos: it's a risk if the layout obscures the text
... you don't necessaryly know the output you're going to get
CL: right, you might get unexpected results
TB: but the risk is pretty small, but I prefer the svg11 tests
though
... all it would take is to put in a style section in the
template to use a webfont as the default font
<ChrisL> yes it would just take one @font-face rule plus a font
family and size on the main group
TB: inkscape would ignore it
(discussion on inkscape and testing with references)
<ChrisL> so you would no longer need to make speccial inkscape
test versions with all text elements removed
DS: i'm not strongly opposed to adding WOFF fonts, I just think
that we should reduce the tests as much as possible
CL: that's why I pushed hard for pass criteria, because it
doesn't matter if the WOFF is supported or not if the only
thing that needs to be done is to render a rect for example
... unless the pass criteria says you have to look exactly like
a given font
DS: for automated tests it's still additional complexity,
requirements for passing the test
CL: but if we have flags, then we should just not add the flag
"need webfont" if it's not necessary
DS: how do you style the elements?
CL: that's why it should be in the template
DS: but we should only have that if it's needed for passing the
test
... don't think we can agree on having this right now
CL: I don't accept your arguments that unflagged tests would
fail
TB: don't care so much either way
nikos: no strong opinion from me, but it should be in the
template i think so that it's no risk to be missed
ED: i'd be fine with having two templates, one for tests that
use text in the visual output, and one that doesn't (where the
webfont isn't needed)
CL: that would be ok with me too
... would that be fine with you DS?
DS: yes
TB: ok, so two templates, one for automated tests (without the
webfont), one for visual tests (that have the webfont)
... I'll make those templates, what font do we want to use?
CL: freesans would be good
DS: do we also want to have other fonts, serif, bold etc?
CL: probably, but not in the template maybe, but it's good to
have a library of fonts that can be used
<ChrisL> <!-- your test suould turn this rect green--><rect x=
y= width= height= />
strokebbox
DS: I'd like to add getting the stroked bbox to the spec, is
that fine?
CL: yes, we agreed to do that, should be fine
DS: other kinds of bboxes too, like markers, filters etc?
CL: we tried to limit it to stroke I think
... anything that affects strokes should say how it affects the
strokebbox
DS: should markers be included?
CL: possibly
DS: ok, i'll try to do this next week (don't need an action)
Summary of Action Items
[NEW] ACTION: Dirk to review (and approve) Tav's submitted
svg2-tests [recorded in
[25]http://www.w3.org/2012/06/14-svg-minutes.html#action01]
[NEW] ACTION: tav to update the svg2 test template
https://dvcs.w3.org/hg/svg2-tests/file/tip/contributors/tavmjon
g/submitted/template_001.svg to be in sync with the agreed
format in
[26]http://www.w3.org/Graphics/SVG/WG/wiki/SVG2/Testing_Require
ments#Revised_structure_after_comment_by_Peter_Linss [recorded
in [27]http://www.w3.org/2012/06/14-svg-minutes.html#action02]
[26]
http://www.w3.org/Graphics/SVG/WG/wiki/SVG2/Testing_Requirements#Revised_structure_after_comment_by_Peter_Linss
[End of minutes]
__________________________________________________________
Minutes formatted by David Booth's [28]scribe.perl version
1.136 ( [29]CVS log)
$Date: 2012/06/14 22:33:00 $
__________________________________________________________
[28] http://dev.w3.org/cvsweb/~checkout~/2002/scribe/scribedoc.htm
[29] http://dev.w3.org/cvsweb/2002/scribe/
Scribe.perl diagnostic output
[Delete this section before finalizing the minutes.]
This is scribe.perl Revision: 1.136 of Date: 2011/05/12 12:01:43
Check for newer version at
[30]http://dev.w3.org/cvsweb/~checkout~/2002/scribe/
[30] http://dev.w3.org/cvsweb/~checkout~/2002/scribe/
Guessing input format: RRSAgent_Text_Format (score 1.00)
Succeeded: s/my/doug's/
Succeeded: s/new svg things for transforms/new transforms things for sv
g/
Succeeded: s/we require/we support/
Succeeded: s/webfonts is/webfonts, and woff, are/
Succeeded: s/arguments/arguments that unflagged tests would fail/
Found ScribeNick: ed
Inferring Scribes: ed
Default Present: Cyril, birtles, +61.2.980.5.aaaa, nikos, +1.415.832.aa
bb, krit, +1.612.789.aacc, Tav, ed, ChrisL
Present: Cyril birtles +61.2.980.5.aaaa nikos +1.415.832.aabb krit +1.6
12.789.aacc Tav ed ChrisL
Agenda:
[31]http://lists.w3.org/Archives/Public/public-svg-wg/2012AprJun/0096.h
tml
[31]
http://lists.w3.org/Archives/Public/public-svg-wg/2012AprJun/0096.html
WARNING: No meeting chair found!
You should specify the meeting chair like this:
<dbooth> Chair: dbooth
Found Date: 14 Jun 2012
Guessing minutes URL:
[32]http://www.w3.org/2012/06/14-svg-minutes.html
People with action items: dirk tav
[32] http://www.w3.org/2012/06/14-svg-minutes.html
End of [33]scribe.perl diagnostic output]
[33] http://dev.w3.org/cvsweb/~checkout~/2002/scribe/scribedoc.htm
--
Erik Dahlstrom, Core Technology Developer, Opera Software
Co-Chair, W3C SVG Working Group
Personal blog: http://my.opera.com/macdev_ed
Received on Friday, 15 June 2012 08:06:09 UTC