README.md

cis194

Homework solutions for UPenn's CIS 194:

http://acruikshank.github.io/cis194/lectures.html

Installation

On a mac:

brew install haskell-stack
cd cis194
stack setup
stack test

How to run tests

stack test

Run a single test file

stack runghc -- -isrc -itest test/Cis194/Hw/SomeSpec.hs

Using QuickCheck in ghci

:m +Test.QuickCheck
:l src/Cis194/Hw/Week1.hs 

-- define a fx that generates data
let negInts = choose(-10000000, -1)

-- define a Property that runs function and asserts something about result
let toDigitsEmpty x = (toDigits x) == []

-- run QuickCheck to validate property
quickCheck (forAll negInts toDigitsEmpty)