From ec65c09aacb30c2b6ad96bcf407d2243cc27bb91 Mon Sep 17 00:00:00 2001 From: Sebastian Date: Wed, 13 Jan 2021 10:59:26 +1100 Subject: Update try_fold to return `Result(a,e)` --- test/gleam/list_test.gleam | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) (limited to 'test') diff --git a/test/gleam/list_test.gleam b/test/gleam/list_test.gleam index dfc9693..3bd463a 100644 --- a/test/gleam/list_test.gleam +++ b/test/gleam/list_test.gleam @@ -180,15 +180,27 @@ pub fn index_fold_test() { pub fn try_fold_test() { [1, 2, 3] |> list.try_fold( - [], + 0, + fn(i, acc) { + case i < 4 { + True -> Ok(acc + i) + False -> Error(Nil) + } + }, + ) + |> should.equal(Ok(6)) + + [1, 2, 3] + |> list.try_fold( + 0, fn(i, acc) { case i < 3 { - True -> Ok([i, ..acc]) - False -> Error(acc) + True -> Ok(acc + i) + False -> Error(Nil) } }, ) - |> should.equal([2, 1]) + |> should.equal(Error(Nil)) } pub fn find_map_test() { -- cgit v1.2.3