aiken/examples/acceptance_tests/019/lib/tests.ak

pub fn map(opt: Option<a>, f: fn(a) -> result) -> Option<result> {
  when opt is {
    None ->
      None
    Some(a) ->
      Some(f(a))
  }
}

test map_1() {
  map(None, fn(_) { 14 }) == None
}

test map_2() {
  map(None, fn(_) { Void }) == None
}