Acid Test

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ACID Test for Parsers

This is not really ACID test, but it sounds good. Basically test should run across as many as possible edge cases in microformats parsing. So far the cases I found are:

  • include pattern
  • include inside include
  • nested µf (agent as vcard inside vcard)
  • multiple elements of the same type
  • “value” container
  • correct work with abbr and img tags
  • tel with type, but without value elements
  • tel with type, without value, but with “include”
  • value as an ul element
  • “headers” pattern
  • “headers” with nested include

That’s it so far. You could test your parsers over there: [1]

This thing is under development and will be updated.


  • Concatenated values (multiple NOTES properties are merged)
  • Invalid formats are ignored (missing required properties)
  • del element
  • rel-tag on categories
  • optimizations (FN==ORG, N from FN)
  • Multiple sub-properties in ADR and N
  • Invalid ISO Dates?