diff --git a/tests/test_rule.py b/tests/test_rule.py
index 08274932..1deef26c 100644
--- a/tests/test_rule.py
+++ b/tests/test_rule.py
@@ -50,8 +50,10 @@ def test_characters():
     )
     console.rule(characters="+*")
     console.rule("foo", characters="+*")
+    console.print(Rule(characters=".,"))
     expected = "+*+*+*+*+*+*+*+*\n"
     expected += "+*+*+ foo +*+*++\n"
+    expected += ".,.,.,.,.,.,.,.,\n"
     assert console.file.getvalue() == expected