test_addingTwoNumbersWithZero successful

stringCalculator.py

@@ -52,5 +52,9 @@ class TestStringCalculator(unittest.TestCase):
         res = self.c.add("1,2")
         self.assertEqual(res, 3)
 
+    def test_addingTwoNumbersWithZero(self):
+        res = self.c.add("0,5")
+        self.assertEqual(res, 5)
+
 if __name__ == "__main__":
     unittest.main()
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