From 5ddddbb16f187bb6cfa6708395265bede43831bf Mon Sep 17 00:00:00 2001
From: Max Kellermann <mk@cm4all.com>
Date: Wed, 4 Oct 2023 12:33:06 +0200
Subject: [PATCH] test/util/TestIntrusiveForwardList: add push_back() test

---
 test/util/TestIntrusiveForwardList.cxx | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/test/util/TestIntrusiveForwardList.cxx b/test/util/TestIntrusiveForwardList.cxx
index e242e1eda..a9959c55d 100644
--- a/test/util/TestIntrusiveForwardList.cxx
+++ b/test/util/TestIntrusiveForwardList.cxx
@@ -133,6 +133,26 @@ TEST(IntrusiveForwardList, CacheLast)
 	list.reverse();
 	ASSERT_EQ(ToString(list), "");
 
+	/* test push_back() */
+
+	for (auto &i : items)
+		list.push_back(i);
+
+	ASSERT_EQ(ToString(list), "abc");
+	ASSERT_EQ(&list.back(), &items[2]);
+
+	list.clear();
+
+	/* test push_back() again to see if clear() has worked */
+
+	for (auto &i : items)
+		list.push_back(i);
+
+	ASSERT_EQ(ToString(list), "abc");
+	ASSERT_EQ(&list.back(), &items[2]);
+
+	list.clear();
+
 	for (auto &i : items)
 		list.push_front(i);