Test suite for GIF containing images using rarely used features

Question

The specifications (plural, since there are versions 87a and 89a) of the GIF graphics format are easy to find in the internet (for those who don\'t want to google:

Answer 1

I was searching for the same thing and came across this page:

http://code.google.com/p/imagetestsuite/

It contains test suites for PNG/GIF/JPEG/TIFF created so that they try to achieve maximum amount of code coverage with the least amount of images based on the open source decoder code-bases. The idea seems good, but I have not yet had time to check out the actual images.