Error absent assignment program: error (success)
Error wrong input type program: error (success)
Error not a function program: error (success)
Error if branches with different types program: error (success)
Error if guard is not a boolean program: error (success)
Identity program: success
Constant program: success
Partial application of function program: success
Passing functions to functions program: success
Scope program: success
Rand program: success