QA/Firefox3.1/FontFace TestStatus: Difference between revisions

 
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These tests were executed after applying '''patchv.0.9h''' from [https://bugzilla.mozilla.org/show_bug.cgi?id=441473 bug441473]
These tests were executed after applying '''patchv.0.9h''' from [https://bugzilla.mozilla.org/show_bug.cgi?id=441473 bug441473]
Tests marked with star (*) shows that some unexpected features were found. See [[QA/Firefox3.1/FontFace_TestStatus#Possible_Risks| Possible Risks]] section for details.


== Tests on Mac OS X ==
== Tests on Mac OS X ==
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LoadTest (done on patch v.0.9d ... not on patch v.0.9h yet)
LoadTest (stress test)
* even 100 @font-face rules per page seems to be pretty scalable. When 210 (230 for the first page you load) or more @font-face rules are used in a document, firefox will crash.
* even 100 @font-face rules per page seems to be pretty scalable. A web page with 200 @font-face rules will be loaded in around 5 seconds. When 250 or more @font-face rules are used in a document, firefox will crash.


== Tests on Windows XP SP3 ==
== Tests on Windows XP SP3 ==
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LoadTest (done with patch v.0.9d, not with patch v.0.9h yet)
LoadTest (stress test)
* 20 @font-face rules per page is pretty scalable. When you scroll the page or do some action during the downloading and rendering of a font, rendering will take a lot more time. So if more than 50 @font-face rules are used, it would take too much time for a user to wait (nearly 10 seconds, but not measured)
* On Windows, it seems even more scalable. A web page with 100 @font-face rules will be loaded in around 1 second. But when more than 150 @font-face rules are used in a single page, it takes much more time to load. A web page with 200 @font-face rules will be loaded in around 20 seconds, which is a lot more than that on Mac.
* It does not crash even if a page had more than 1000 @font-face rules, but it would take more than 5 minutes until the text is rendered, which is not endurable for general use.
* It does not crash even if a page had more than 1000 @font-face rules, but it would take more than 5 minutes until the text is rendered, which is not endurable for general use.
** The more @font-face rules you have in a page, the more time is needed to its rendering. It seems that the time it takes is O(n^2) or something


= Planned (but not executed) Tests =
= Planned (but not executed) Tests =


(Tests Not Executed Yet)
(Tests Not Executed Yet)
== Unicode-Range Tests ==
* Basic Tests
** single code point
*** ex. U+A5, U+301C
** interval value
*** ex. U+3040-30FF, U+999-998 (does this fail?)
* What happens if I put many 0s before the number?
** ex. U+F, U+0F, U+00F, U+000F, U+00000000F, ... do they mean the same thing?
* What happens if I use ? in the front/middle?
** ex. U+?4, U+3?5, ...
* What happens if I use multiple unicode-range rules to consist a single font-family?
** ex. @font-face{ font-family:testA; src:url(fontA.ttf); unicode-range:U+0-U+2FF; } @font-face{ font-family:testA; src:url(fontB.otf); unicode-range:U+300-U+FFF }
* What happens if I specified only a single character in the rule and tried to display other character? Would there be a fallback function?
** ex. @font-face { font-family:smallA; src:url(smallA.ttf); unicode-range:U+1; }
** <span class="font-family:smallA">ABC</span>?
* What happens if the specified font did not have a character of the specified unicode range? Does it display nothing? Would there be a fallback function?
== CSS Mutation from JavaScript tests ==
* What happens if you download the same font again? Would it use cache?
* Is it possible to change the DOM tree of other documents?
** Is downloading another font for other documents prohibited? or is it allowed?
* Consider what will happen when 2 pages try to change the DOM of each other
** stateful


= Possible Risks =
= Possible Risks =
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** <strike>As a consequence, the possibility of download failure increased</strike>
** <strike>As a consequence, the possibility of download failure increased</strike>
** <strike>Unfortunately, I didn't take any statistics, so I can't compare them by exact numbers</strike>
** <strike>Unfortunately, I didn't take any statistics, so I can't compare them by exact numbers</strike>
They were fixed in patch v.0.9h :-)


== Suspected Features ==
== Suspected Features ==
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