AT tests and font collections

a) The WOFF spec says that if the input font has a particular error then 
the WOFF2 must not be generated. If the authoring tool fixes up the 
error and generates the WOFF2, is it conformant?

b) WOFF2 says how to produce files which are collections, and files 
which are not.

- I have seen some online converters simply refuse to convert TTC files. 
Does that mean they fail, or does it mean they can't be tested on that 
test?

- Also I saw one converter which accepted TTC input and produced a set 
of WOFF2 as output (the collection was split into individual files 
before conversion). Is that conformant? Given the poor support of 
collections in browsers, I would say that the converter is making a 
reasonable choice, and is generating conformant WOFF2 files. But we 
can't report a test result for that converter and those tests. We can 
explain why, in the implementation report.

-- 
Chris Lilley
@svgeesus
Technical Director @ W3C
W3C Strategy Team, Core Web Design
W3C Architecture & Technology Team, Core Web & Media

Received on Wednesday, 1 November 2017 17:24:40 UTC