Install libghc-hspec-wai-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-hspec-wai-dev
Description:
hspec support for testing WAI applications
Experimental Hspec support for testing WAI applications . This package provides a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.
Homepage: https://github.com/hspec/hspec-wai#readme
Version: 0.8.0-1build7
Section: universe/haskell