From ce26a90458faa64d96269e8c9333c9201a8fccc4 Mon Sep 17 00:00:00 2001
From: Yi Wu <qwky51@outlook.com>
Date: Mon, 12 Oct 2026 18:06:59 +0800
Subject: [PATCH] Update test_add.py

---
 test_add.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/test_add.py b/test_add.py
index 3e51fb5..ee074bd 100644
--- a/test_add.py
+++ b/test_add.py
@@ -5,3 +5,6 @@ def test_add_positive():
 
 def test_add_zero():
     assert add(0, 5) == 5
+
+def test_add_with_negative():
+    assert add(-1, -2) == -3