From 35a22558c1b7b6371910f9b85da7def5b823967f Mon Sep 17 00:00:00 2001
From: Marvin Serchimo <marvin.serchimo@student.reutlingen-university.de>
Date: Fri, 28 Mar 2025 15:02:19 +0100
Subject: [PATCH] feature3
---
feature3 | 45 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 45 insertions(+)
create mode 100644 feature3
diff --git a/feature3 b/feature3
new file mode 100644
index 0000000..b8c6ee0
--- /dev/null
+++ b/feature3
@@ -0,0 +1,45 @@
+import re
+import unittest
+
+class StringCalculator:
+ def add(self, numbers: str) -> int:
+ if not numbers:
+ return 0
+ split_numbers = re.split(r",|\n", numbers)
+ number_list = [int(n) for n in split_numbers if n.strip() != ""]
+ return sum(number_list)
+
+class TestStringCalculator(unittest.TestCase):
+ """Test suite for the StringCalculator class."""
+
+ def setUp(self):
+ """neue Instanz des StringCalculators vor jedem Test """
+ self.calculator = StringCalculator()
+ def test_empty_string_returns_zero(self):
+
+ """Test: Leerer String soll 0 ergeben"""
+ self.assertEqual(self.calculator.add(""), 0)
+
+ def test_single_number_returns_value(self):
+
+ """Test: Ein einzelner Wert soll zurückgegeben werden"""
+ self.assertEqual(self.calculator.add("1"), 1)
+
+ def test_two_numbers_return_sum(self):
+
+ """Test: Zwei Zahlen sollen summiert werden"""
+ self.assertEqual(self.calculator.add("1,2"), 3)
+
+ #feature 2 test
+ def test_add_multiple_numbers(self):
+
+ self.assertEqual(self.calculator.add("1,2,3,4,5"), 15)
+
+ #feature 3 test
+ def test_add_numbers_with_newlines(self):
+
+ self.assertEqual(self.calculator.add("1\n2\n3"), 6)
+
+
+if __name__=='__main__':
+ unittest.main()
\ No newline at end of file
--
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