From 84ae098d6af9c68b6c12aebbc854b599c488956f Mon Sep 17 00:00:00 2001
From: Hatice Yildirim <Hatice.Yildirim@student.reutlingen-university.de>
Date: Fri, 28 Mar 2025 20:48:46 +0100
Subject: [PATCH] =?UTF-8?q?StringCalculator.py=20hinzugef=C3=BCgt?=
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---
StringCalculator.py | 29 +++++++++++++++++++++++++++++
1 file changed, 29 insertions(+)
create mode 100644 StringCalculator.py
diff --git a/StringCalculator.py b/StringCalculator.py
new file mode 100644
index 0000000..f9a7682
--- /dev/null
+++ b/StringCalculator.py
@@ -0,0 +1,29 @@
+from abc import ABC, abstractmethod
+import unittest
+
+class IStringCalculator(ABC):
+ @abstractmethod
+ def add(self, numbers: str) -> int:
+ pass
+
+class StringCalculator(IStringCalculator):
+ def add(self, numbers: str) -> int:
+ if not numbers:
+ return 0
+ return sum(map(int, numbers.split(',')))
+
+class TestStringCalculator(unittest.TestCase):
+ def setUp(self):
+ self.calculator = StringCalculator()
+
+ def test_empty_string(self):
+ self.assertEqual(self.calculator.add(""), 0)
+
+ def test_single_number(self):
+ self.assertEqual(self.calculator.add("1"), 1)
+
+ def test_two_numbers(self):
+ self.assertEqual(self.calculator.add("1,2"), 3)
+
+if __name__ == "__main__":
+ unittest.main()
\ No newline at end of file
--
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