Install libghc-yesod-test-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libghc-yesod-test-dev
Description:
integration testing for WAI/Yesod applications
Behavior-oriented integration testing for Yesod applications. . This package contains the normal library files.
Homepage: http://www.yesodweb.com
Version: 1.5.8-1build6
Section: universe/haskell