Most of the tests use doctest, which isn't run like a normal test suite (I guess).
To run these tests, first make sure doctest is on the PATH (i.e. cabal install doctest), then run the following commands:
cabal repl --build-depends=QuickCheck --with-ghc=doctest --repl-options="-fno-warn-orphans" siphon
cabal repl --build-depends=QuickCheck --with-ghc=doctest --repl-options="-fno-warn-orphans" colonnade
cabal repl --build-depends=QuickCheck --with-ghc=doctest --repl-options="-fno-warn-orphans" blaze-colonnade
There are no tests for lucid-colonnade at present.