From a30237864151775382d60389ee277da18bf4834e Mon Sep 17 00:00:00 2001
From: 69049ed6x <69049ed6x@users.noreply.github.com>
Date: Sat, 7 Mar 2026 17:37:53 +0800
Subject: [PATCH] test: cover empty factor rule name

---
 tests/test_factor_rules.py | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tests/test_factor_rules.py b/tests/test_factor_rules.py
index 5f306cb1..41490109 100644
--- a/tests/test_factor_rules.py
+++ b/tests/test_factor_rules.py
@@ -262,6 +262,16 @@ class FactorRulesPathTests(unittest.TestCase):
 
         self.assertIn("- Rationale: ", summary)
 
+    def test_summarize_factor_rules_preserves_empty_name_as_blank_label(self):
+        summary = summarize_factor_rules(
+            [{"name": "", "signal": "neutral"}],
+            ticker="TLT",
+            trade_date="2026-03-07",
+        )
+
+        self.assertIn("Rule 1: ", summary)
+        self.assertIn("- Signal bias: neutral", summary)
+
 
 if __name__ == "__main__":
     unittest.main()