should-not-typecheck-2.1.0: A HUnit/hspec assertion library to verify that an expression does not typecheck

Safe HaskellSafe
LanguageHaskell2010

Test.ShouldNotTypecheck

Synopsis

Documentation

shouldNotTypecheck :: NFData a => (() ~ () => a) -> Assertion Source #

Takes one argument, an expression that should not typecheck. It will fail the test if the expression does typecheck. Requires Deferred Type Errors to be enabled for the file it is called in. See the README for examples and more infomation.