diff --git a/PROJROOT/tests/test_cli_wrapper.py b/PROJROOT/tests/test_cli_wrapper.py
new file mode 100644
index 0000000..29de4da
--- /dev/null
+++ b/PROJROOT/tests/test_cli_wrapper.py
@@ -0,0 +1,40 @@
+import unittest
+from unittest.mock import patch
+from shared.cli_wrapper import CLIWrapper
+
+class TestCLIWrapper(unittest.TestCase):
+
+    def test_sanitize_input(self):
+        test_cases = [
+            ("normal input", "normal input"),
+            ("input with spaces", "'input with spaces'"),
+            ("input with 'quotes'", "'input with '\"'\"quotes'\"'\"'"),
+            ("input with $special &chars", "'input with $special &chars'"),
+        ]
+        for input_str, expected_output in test_cases:
+            with self.subTest(input_str=input_str):
+                self.assertEqual(CLIWrapper.sanitize_input(input_str), expected_output)
+
+    @patch('subprocess.run')
+    def test_execute_command_success(self, mock_run):
+        mock_run.return_value.stdout = "Command output"
+        mock_run.return_value.returncode = 0
+
+        output, return_code = CLIWrapper.execute_command("test command")
+
+        self.assertEqual(output, "Command output")
+        self.assertEqual(return_code, 0)
+        mock_run.assert_called_once_with("test command", shell=True, check=True, text=True, capture_output=True)
+
+    @patch('subprocess.run')
+    def test_execute_command_failure(self, mock_run):
+        mock_run.side_effect = subprocess.CalledProcessError(1, "test command", stdout="Error output")
+
+        output, return_code = CLIWrapper.execute_command("test command")
+
+        self.assertEqual(output, "Error output")
+        self.assertEqual(return_code, 1)
+        mock_run.assert_called_once_with("test command", shell=True, check=True, text=True, capture_output=True)
+
+if __name__ == '__main__':
+    unittest.main()