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List of questionable testcases on font and vertical-align

From: Gérard Talbot <css21testsuite@gtalbot.org>
Date: Sat, 31 Jul 2010 18:56:02 -0700
Message-ID: <45b593f525c7906edc83f0ac16da6d1a.squirrel@cp3.shieldhost.com>
To: "public-css-testsuite@w3.org" <public-css-testsuite@w3.org>
Hello all,

List of questionable testcases on font and vertical-align:

1-
Font-size using inches with a nominal value, 3in
http://test.csswg.org/suites/css2.1/20100727/html4/font-size-061.htm
http://test.csswg.org/suites/css2.1/20100727/html4/font-size-062.htm

Some browsers will fail these tests because their font-size limit is
255px. I wish those 2 tests would change 3in to 2in

2-
http://test.csswg.org/suites/css2.1/20100727/html4/c527-font-000.htm
"There should be a small gap between each line."
Reason: how small is a small gap? how can a normal tester (your mother,
your bus driver, your neighbour) realistically establish that this gap
here is small while that gap over there is not small? How exactly can
this test fail?

3-
http://test.csswg.org/suites/css2.1/20100727/html4/c527-font-002.htm
"9px gap between lines"
Reason: how can a normal tester (your mother, your bus driver, your
neighbour) realistically establish that this gap here is 9px while that
gap over there is not 9px? The testcase does not provide a ruler, some
kind of green overlapping red mechanism, etc. Where is the start line
and the end line?

4-
http://test.csswg.org/suites/css2.1/20100727/html4/c527-font-003.htm
"small and cursive, with double line spacing"
Reason: it is not clear how such test can be evaluated as pass or fail,
even by a machine.

5-
http://test.csswg.org/suites/css2.1/20100727/html4/c527-font-004.htm
http://test.csswg.org/suites/css2.1/20100727/html4/c527-font-005.htm
http://test.csswg.org/suites/css2.1/20100727/html4/c527-font-006.htm
http://test.csswg.org/suites/css2.1/20100727/html4/c527-font-007.htm
http://test.csswg.org/suites/css2.1/20100727/html4/c527-font-008.htm
http://test.csswg.org/suites/css2.1/20100727/html4/c527-font-009.htm
http://test.csswg.org/suites/css2.1/20100727/html4/c527-font-10.htm

All these testcases rely on the tester being able to measure a distance
of a few pixels between lines, or the font-size, without a comparing
ruler, without a reliable working measurement system or some kind of
overlapping color mechanism.

6-
http://www.w3.org/Style/CSS/Test/CSS2.1/20100727/html4/vertical-align-115.htm

http://www.w3.org/Style/CSS/Test/CSS2.1/20100727/html4/vertical-align-116.htm

I have explained why these tests are incorrect in
http://lists.w3.org/Archives/Public/public-css-testsuite/2010Feb/0030.html

regards, Gérard
-- 
Contributions to the CSS 2.1 test suite:
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CSS 2.1 test suite (beta 2; July 27th 2010):
http://test.csswg.org/suites/css2.1/20100727/html4/toc.html

CSS 2.1 test suite contributors:
http://test.csswg.org/source/contributors/
Received on Sunday, 1 August 2010 01:56:39 GMT

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