Should verify "all" possible incomes and outcomes:
Check the params for 0 and any possible random floats -2^128 - 2^128
Verify if there is a return value of type float. If not fail the test
->
Function throws an error when second parameter is a 0. It has to be fixed by using different module like ffi "NativeBasics "safe_div"
Example 2
myMap : (Bool -> Int) -> List Bool -> List Int
Generate a function verifying that it took a bool and returning a random int
Generate a list of random length with random bools inside
Check if function always returns a list of integers. If not throw
Along with typetests which verify the spec of a function we want a property test that checks whether used FFI call is pure and total.
For example:
Should verify "all" possible incomes and outcomes:
-2^128
-2^128
ffi "NativeBasics "safe_div"
Example 2
Etc