diff --git a/test_utils.py b/test_utils.py
index 66b0facdf..2a6167d4c 100644
--- a/test_utils.py
+++ b/test_utils.py
@@ -11,5 +11,14 @@ class TestUtils(unittest.TestCase):
         result = replace_most_similar_chunk(whole, part, replace)
         self.assertEqual(result, expected_output)
 
+    def test_replace_most_similar_chunk_not_perfect_match(self):
+        whole = "This is a sample text.\nAnother line of text.\nYet another line."
+        part = "sample text.\nAnother line"
+        replace = "replaced text.\nModified line"
+        expected_output = "This is a replaced text.\nModified line of text.\nYet another line."
+
+        result = replace_most_similar_chunk(whole, part, replace)
+        self.assertEqual(result, expected_output)
+
 if __name__ == "__main__":
-    unittest.main()
+    unittest.main()
\ No newline at end of file