From 10685c847e08cf670e745a520d0a896af0b61a82 Mon Sep 17 00:00:00 2001
From: Prashanth Kumar <prkumar@linkedin.com>
Date: Wed, 30 Nov 2022 13:18:12 -0800
Subject: [PATCH] BUGFIX: Implement 3-arg subtraction

---
 src/calc_test.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/calc_test.py b/src/calc_test.py
index 2911910..8f60f31 100644
--- a/src/calc_test.py
+++ b/src/calc_test.py
@@ -17,6 +17,10 @@ def test_sub_2arg(self):
         # Make sure 4 - 3 = 1
         self.assertEqual(sub(4, 3), 1, 'subtracting three from four')
 
+    def test sub_3arg(self):
+         self.assertEqual(sub(4, 3, 1), 0, 'subtracting three and one from four')
+
+
 
 if __name__ == '__main__':
     unittest.main()