From 42e1f7903dafc0fd5476aa00632ef5037437da3b Mon Sep 17 00:00:00 2001
From: Lawrence Chou <choznerol@protonmail.com>
Date: Tue, 26 Sep 2023 21:08:54 +0800
Subject: [PATCH] Test DoubleEndedIterator

---
 src/titlecase/ascii.rs | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/titlecase/ascii.rs b/src/titlecase/ascii.rs
index 45500ae90..9870dc122 100644
--- a/src/titlecase/ascii.rs
+++ b/src/titlecase/ascii.rs
@@ -292,4 +292,17 @@ mod tests {
         assert!(min <= count);
         assert!(count <= max.unwrap());
     }
+
+    #[test]
+    fn double_ended_iterator() {
+        let mut iter = Titlecase::with_slice(b"abc");
+        assert_eq!(iter.next_back(), Some(b'c'));
+        assert_eq!(iter.next_back(), Some(b'b'));
+        assert_eq!(iter.next_back(), Some(b'A'));
+
+        let mut iter = Titlecase::with_slice(b"abc");
+        assert_eq!(iter.next(), Some(b'A'));
+        assert_eq!(iter.next_back(), Some(b'c'));
+        assert_eq!(iter.next_back(), Some(b'B')); // FIXME: Should be 'b'
+    }
 }