diff --git a/Lib/idlelib/test/test_pathbrowser.py b/Lib/idlelib/test/test_pathbrowser.py
new file mode 100644
--- /dev/null
+++ b/Lib/idlelib/test/test_pathbrowser.py
@@ -0,0 +1,18 @@
+import unittest
+from test import support
+import idlelib.PathBrowser as PathBrowser
+
+
+class PathBrowserTest(unittest.TestCase):
+
+    def test_DirBrowserTreeItem(self):
+        # Issue16226 - make sure that getting a sublist works
+        d = PathBrowser.DirBrowserTreeItem('')
+        d.GetSubList()
+
+
+def test_main():
+    support.run_unittest(PathBrowserTest)
+
+if __name__ == "__main__":
+    test_main()