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-rw-r--r--test/gleam/iterator_test.gleam7
1 files changed, 7 insertions, 0 deletions
diff --git a/test/gleam/iterator_test.gleam b/test/gleam/iterator_test.gleam
index 9250f9c..2c62ff4 100644
--- a/test/gleam/iterator_test.gleam
+++ b/test/gleam/iterator_test.gleam
@@ -298,3 +298,10 @@ pub fn zip_test() {
|> iterator.to_list
|> should.equal([tuple("a", 20), tuple("b", 21), tuple("c", 22)])
}
+
+pub fn chunk_by_test() {
+ iterator.from_list([1, 2, 2, 3, 4, 4, 6, 7, 7])
+ |> iterator.chunk_by(fn(n) { n % 2 })
+ |> iterator.to_list
+ |> should.equal([[1], [2, 2], [3], [4, 4, 6], [7, 7]])
+}