review: fix tests

Signed-off-by: Fernando Rijo Cedeno <37381190+zFernand0@users.noreply.github.com>

Author: zFernand0

tests/unit/core/test_profile_manager.py

@@ -297,17 +297,16 @@ def test_validate_schema_logger(self, get_pass_func, mock_logger_warning: mock.M
         self.assertEqual(mock_logger_warning.call_args[0][0], "Could not find $schema property")
 
     def test_schema_list_rejects_remote_schema(self):
-        """Test that schema_list does not fetch a remote schema URL and returns an empty list instead."""
+        """Test that schema_list does not fetch a remote schema URL and raises an error instead."""
         with mock.patch("requests.get") as mock_get:
             config_file = ConfigFile(
                 name="zowe_abcd", type="User Config", schema_property="https://example.com/zowe.schema.json"
             )
             config_file.suppress_config_warnings(False)
-            with self.assertWarns(UserWarning):
-                result = config_file.schema_list()
+            with self.assertRaises(ValueError):
+                config_file.schema_list()
 
         mock_get.assert_not_called()
-        self.assertEqual(result, [])
 
     @mock.patch("zowe.secrets_for_zowe_sdk.keyring.get_password", side_effect=keyring_get_password_exception)
     def test_secure_props_loading_warning(self, get_pass_func):