Revert "Delete solutions/tests/test_is_palindrome.py"

This reverts commit 6435bd1.

solutions/tests/test_is_palindrome.py

@@ -0,0 +1,43 @@
+"""
+Created on 04/01/2025
+
+@author: Tibyan Khalid
+"""
+
+import unittest
+
+from ..is_palindrome import is_palindrome
+
+
+class TestIsPalindrome(unittest.TestCase):
+    """Unittests for the is_palindrome function"""
+
+    def test_palindrome(self):
+        self.assertEqual(is_palindrome("level"), "Palindrome")
+
+    def test_not_palindrome(self):
+        self.assertEqual(is_palindrome("world"), "Not Palindrome")
+
+    # Boundary Cases Tests
+    def test_empty_string(self):
+        "Empty string is considered a Palindrome"
+        self.assertEqual(is_palindrome(""), "Palindrome")
+
+    def test_single_character(self):
+        "Any single character is a palindrome as it reads the same backward"
+        self.assertEqual(is_palindrome("t"), "Palindrome")
+
+    def test_non_string_entry(self):
+        "Raise an error if entry is not a string"
+        with self.assertRaises(AssertionError):
+            is_palindrome(34)
+
+    def test_upper_lower_cases(self):
+        "Case matters here, radar is a Palindrome but Radar is not"
+        self.assertEqual(is_palindrome("Radar"), "Not Palindrome")
+        self.assertEqual(is_palindrome("Radar".lower()), "Palindrome")
+
+    def test_special_characters(self):
+        "Handles special characters correctly"
+        self.assertEqual(is_palindrome("t@a@t"), "Palindrome")
+        self.assertEqual(is_palindrome("a@b@c"), "Not Palindrome")