unicode-transforms
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composewell
Conformance testing
Need to implement unicode conformance testing. See https://www.unicode.org/reports/tr15/tr15-18.html#Conformance%20Testing .
We use the unicode normalization test suite for testing, but we need to check if there are any more resources/ways to test so that testing is robust and complete. Does standard specify more ways to test?
One could possibly modify QuickCheckUtils.hs to generate "more interesting" strings, with increased density of combining/decomposable characters.
Yes, and we can do the same for testing against ICU. We have a testsuite that normalizes random strings using unicode-transforms and ICU both and then compares the results. There as well we need to check if we are using interesting strings.