Markup Validator's test collection

Table of contents

This page lists a few test documents and test scenarios for the W3C Markup Validator make sure everything works fine after making changes to the validator. If you can think of interesting test cases that aren't on this page, let us know.

Document types support

Below is a list of sample documents for a number of document types the validator is supposed to be supporting. The first validate link will attempt validation with the current instance, for test purposes. The v.w.o instance can be taken as reference/comparison.

• validate - with v.w.o - view: HTML 4.0 Strict
• validate - with v.w.o - view: HTML 4.0 Transitional
• validate - with v.w.o - view: HTML 4.0 Frameset
• validate - with v.w.o - view: HTML 4.01 Transitional - (from the HTML 4.01 PR)
• validate - with v.w.o - view: ISO-HTML (aka ISO/IEC 15445:2000)
• validate - with v.w.o - view: XHTML 1.0 Strict
  validate - with v.w.o - view: XHTML 1.0 Strict from XHTML Spec
  validate - with v.w.o - view: XHTML 1.0 Strict missing xmlns attribute (valid)
• validate - with v.w.o - view: XHTML Basic 1.0
• validate - with v.w.o - view: XHTML 1.1
• validate - with v.w.o - view: XHTML/MathML2 (with FPI)
• validate - with v.w.o - view: MathML 2.0 (minimal test document)
• validate - with v.w.o - view: XHTML 1.1 served as application/xhtml+xml
• validate - with v.w.o - view: SMIL 1.0 minimal document
• validate - with v.w.o - view: SMIL 2.0
• validate - with v.w.o - view: XHTML + MathML + SVG (from the 9 August 2002 WD)
• validate - with v.w.o - view: HTML4.0 plus blink ("Custom" SGML DTD)

Docs that are probably invalid

we must FIX THIS! It's not reliable any more...

• Yahoo!
• Microsoft
• Netscape
• XML 1.0

Docs that should be Well Formed

• XHTML sans DOCTYPE (DanC's HTMLized RFC 2616;well-formed, but not valid!)
• XHTML/MathML2 (from the MathML 2.0 spec)
• XML output from OpenOffice 5.2 ("Build/Tag number OpenOffice605"), many namespaces

Various Encodings

• UTF-8 sample text (correct), more positive tests
• UTF-8 stress test (wrong cases), more negative tests
• iso-2022-jp encoded document
• windows-1250 encoded document (Slovenian)
• utf-8 encoded document
• XML file with a "Plane 20" character (bogus).

Error conditions & strange cases

This should be split in UI testing and regression tests

• /check/referer (deprecated)
• /check/referer;verbose=1 (unsupported)
• /check/referer;verbose=1;No200=1 (unsupported)
• /check?uri=referer
• /check?uri=referer;verbose=1
• /check?uri=referer;verbose=1;No200=1
• Directory Redirect
• script invoked with no parameters
• uri parameter is empty
• uri is missing http://
• 404 not found
• text/plain
• httpd on a non-standard port
• XHTML, no DOCTYPE, no xmlns (invalid)
• bogus FPI #1: lowercase "doctype".
• bogus FPI #2: HTML 4.01 "Strict"
• bogus FPI #3: XHTML 1.1 "Strict"
• bogus XML Decl (missing final "?")
• XHTML1, blank first line (should be marked as invalid)
• XHTML1, bogus element
• us-ascii xml document with a latin1 character (should be invalid)
• no newlines
• a file: URL
• Non-SGML Chars.
• SHORTTAGS and -wunclosed..
• image/svg
• SVG 1.0 Rec. minimal document
• xmlconf-19990712.xml

User Interface tests

TBD

Bugs and Regression Tests

These should be tied to a bug report on either mailing-list and/or bugzilla whenever possible.

• Long Lines (cause a core)
• A trailing ASCII NUL character (trips up HTML::Parser (not really))
• Undeclared namespace prefixes (colons ":" in element names (trips up parsing of onsgmls output))