Language: Python
Label: vulnerable
CWE: CWE-79 \u2014 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Code:
    def test_invalid_component_request(self):
        """Test request failure when invalid component name is provided."""

        response = self._request_component("invalid_component")
        self.assertEqual(404, response.code)
        self.assertEqual(b"invalid_component not found", response.body)