From ba25ee9e9c94ea0935bd32c12b88e19f07419fa7 Mon Sep 17 00:00:00 2001
From: Simon Li <orpheus+devel@gmail.com>
Date: Fri, 28 Mar 2025 10:08:43 +0000
Subject: [PATCH] Additional test cases

Co-authored-by: Min RK <benjaminrk@gmail.com>
---
 jupyterhub/tests/test_utils.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/jupyterhub/tests/test_utils.py b/jupyterhub/tests/test_utils.py
index 11eb0b50..aefa9e30 100644
--- a/jupyterhub/tests/test_utils.py
+++ b/jupyterhub/tests/test_utils.py
@@ -109,7 +109,13 @@ async def test_tornado_coroutines():
         (("/base/", ""), "/base/"),
         (("/base", "abc", "def"), "/base/abc/def"),
         (("/base/", "/abc/", "/def/"), "/base/abc/def/"),
+        (("/base", "", "/", ""), "/base/"),
         ((""), ""),
+        (("", ""), ""),
+        (("", "part", ""), "part"),
+        (("", "/part"), "part"),
+        (("", "part", "", "after"), "part/after"),
+        (("", "part", "", "after/", "", ""), "part/after/"),
         (("abc", "def"), "abc/def"),
     ],
 )