From 1643c557b5e7e5fcbaf70a689a9b9d8f74e3ee83 Mon Sep 17 00:00:00 2001
From: Marcin Puc <5671049+tranzystorek-io@users.noreply.github.com>
Date: Wed, 10 Mar 2021 10:47:22 +0100
Subject: Add iterator.scan (#173)

---
 test/gleam/iterator_test.gleam | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'test')

diff --git a/test/gleam/iterator_test.gleam b/test/gleam/iterator_test.gleam
index ffe57e4..f1ee880 100644
--- a/test/gleam/iterator_test.gleam
+++ b/test/gleam/iterator_test.gleam
@@ -265,6 +265,13 @@ pub fn iterate_test() {
   |> should.equal([1, 3, 9, 27, 81])
 }
 
+pub fn scan_test() {
+  iterator.from_list([1, 2, 3, 4, 5])
+  |> iterator.scan(from: 0, with: fn(el, acc) { acc + el })
+  |> iterator.to_list
+  |> should.equal([1, 3, 6, 10, 15])
+}
+
 pub fn zip_test() {
   iterator.from_list(["a", "b", "c"])
   |> iterator.zip(iterator.range(20, 30))
-- 
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