Test Driven Development using functional programming

The assignment is to code an algorithm/project using Haskell as a functional programming language while undergoing test driven development. The test should use property based testing (QuickCheck) and can include unit testing (HUnit) for further marks. The algorithm can be anything but having thorough test is the main element of the coursework. Further writing is required however i have completed all the writing, i am just struggling with coding using Haskell