An automated run of parserTests.php showed the following failures:
This is MediaWiki version 1.11alpha (r25151).
Reading tests from "maintenance/parserTests.txt"... Reading tests from "extensions/Cite/citeParserTests.txt"... Reading tests from "extensions/Poem/poemParserTests.txt"... Reading tests from "extensions/LabeledSectionTransclusion/lstParserTests.txt"...
1 previously FAILING test(s) removed O_o * Table security: embedded pipes (http://mail.wikipedia.org/pipermail/wikitech-l/2006-April/034637.html) [First recorded appearance: 17-Mar-2007 08:15:12, 1.10alpha (r20533)]
1 new FAILING test(s) :( * Table security: embedded pipes (http://lists.wikimedia.org/mailman/htdig/wikitech-l/2006-April/022293.html) [Has never passed]
17 still FAILING test(s) :( * URL-encoding in URL functions (single parameter) [Has never passed] * URL-encoding in URL functions (multiple parameters) [Has never passed] * Link containing double-single-quotes '' (bug 4598) [Has never passed] * message transform: <noinclude> in transcluded template (bug 4926) [Has never passed] * message transform: <onlyinclude> in transcluded template (bug 4926) [Has never passed] * BUG 1887, part 2: A <math> with a thumbnail- math enabled [Has never passed] * HTML bullet list, unclosed tags (bug 5497) [Has never passed] * HTML ordered list, unclosed tags (bug 5497) [Has never passed] * HTML nested bullet list, open tags (bug 5497) [Has never passed] * HTML nested ordered list, open tags (bug 5497) [Has never passed] * Fuzz testing: image with bogus manual thumbnail [Introduced between 08-Apr-2007 07:15:22, 1.10alpha (r21099) and 25-Apr-2007 07:15:46, 1.10alpha (r21547)] * Inline HTML vs wiki block nesting [Has never passed] * Mixing markup for italics and bold [Has never passed] * dt/dd/dl test [Has never passed] * Images with the "|" character in the comment [Has never passed] * Parents of subpages, two levels up, without trailing slash or name. [Has never passed] * Parents of subpages, two levels up, with lots of extra trailing slashes. [Has never passed]
Passed 526 of 544 tests (96.69%)... 18 tests failed!