haskell@gentoo.org Gentoo Haskell The usual Arbitrary instance for Text (in <https://hackage.haskell.org/package/quickcheck-instances quickcheck-instances>) only has single-byte instances and so isn't an ideal representation of a valid UTF-8 character. This package has generators for one-, two- and three-byte UTF-8 characters (all that are currently in use). quickcheck-text olorin/quickcheck-text