From 9697a576ecd0cc39f37bdc948770ed6507d40fa4 Mon Sep 17 00:00:00 2001
From: Louis Pilfold <louis@lpil.uk>
Date: Sun, 24 May 2020 21:29:34 +0100
Subject: Iterator documentation

---
 test/gleam/iterator_test.gleam | 10 ++++++++++
 1 file changed, 10 insertions(+)

(limited to 'test')

diff --git a/test/gleam/iterator_test.gleam b/test/gleam/iterator_test.gleam
index 015d3b2..ce3cdea 100644
--- a/test/gleam/iterator_test.gleam
+++ b/test/gleam/iterator_test.gleam
@@ -114,6 +114,16 @@ pub fn unfold_test() {
   iterator.unfold(2, fn(_) { iterator.Done })
   |> iterator.take(5)
   |> should.equal([])
+
+  fn(n) {
+    case n {
+      0 -> iterator.Done
+      n -> iterator.Next(element: n, accumulator: n - 1)
+    }
+  }
+  |> iterator.unfold(from: 5)
+  |> iterator.to_list
+  |> should.equal([5, 4, 3, 2, 1])
 }
 
 pub fn range_test() {
-- 
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