diff --git a/.vscode/settings.json b/.vscode/settings.json
index 252022b48..49df4cc6f 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -122,5 +122,8 @@
       "source.fixAll.ruff": "explicit",
       "source.organizeImports.ruff": "explicit"
     }
-  }
+  },
+  "python.analysis.extraPaths": [
+    "./solutions/tests/test_"
+  ]
 }
diff --git a/solutions/__init__.py b/solutions/check_odd_even_17/__init__.py
similarity index 100%
rename from solutions/__init__.py
rename to solutions/check_odd_even_17/__init__.py
diff --git a/solutions/check_odd_even_17/check_odd_even.py b/solutions/check_odd_even_17/check_odd_even.py
new file mode 100644
index 000000000..b8059492f
--- /dev/null
+++ b/solutions/check_odd_even_17/check_odd_even.py
@@ -0,0 +1,20 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""This module contains a function to identify if a number is even or odd."""
+
+
+def check_odd_even(number):
+    """Check if the number is odd or even."""
+    if number % 2 == 0:
+        return "even_number"
+
+    return "odd_number"
+
+
+if __name__ == "__main__":
+    try:
+        num = int(input("Enter an integer: "))
+        RESULT = check_odd_even(num)
+        print(f"The number {num} is {RESULT}.")
+    except ValueError:
+        print("Invalid input. Please enter an integer.")
diff --git a/solutions/tests/test_check_odd_even.py b/solutions/tests/test_check_odd_even.py
new file mode 100644
index 000000000..be01fde7b
--- /dev/null
+++ b/solutions/tests/test_check_odd_even.py
@@ -0,0 +1,34 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+"""This module contains the tests for the check_odd_even function."""
+
+import unittest
+from solutions.check_odd_even_17.check_odd_even import check_odd_even
+
+
+class TestOddOrEven(unittest.TestCase):
+    """Test cases for the check_odd_or_even function."""
+
+    def test_even_numbers(self):
+        """the test for even numbers"""
+        self.assertEqual(check_odd_even(2), "even_number")
+        self.assertEqual(check_odd_even(1000000), "even_number")
+        self.assertEqual(check_odd_even(0), "even_number")
+
+    def test_odd_numbers(self):
+        """the test for odd numbers"""
+        self.assertEqual(check_odd_even(5), "odd_number")
+        self.assertEqual(check_odd_even(500001), "odd_number")
+        self.assertEqual(check_odd_even(-1), "odd_number")
+
+    def test_edge_cases(self):
+        """with edge cases"""
+        self.assertEqual(check_odd_even(0), "even_number")
+        self.assertEqual(check_odd_even(1), "odd_number")
+        self.assertEqual(check_odd_even(-1), "odd_number")
+
+    def test_large_integers(self):
+        """the test for large integers"""
+        self.assertEqual(check_odd_even(200000), "even_number")
+        self.assertEqual(check_odd_even(500000), "even_number")
+        self.assertEqual(check_odd_even(1000000), "even_number")