testlib_refactor: add doctrings for unit test helpers

Jira ticket: CMK-20441

Change-Id: Ifd7e92a9c93d12ca61fb912888a051aae171eac3

tests/testlib/unit/base_configuration_scenario.py

@@ -2,6 +2,11 @@
 # Copyright (C) 2019 Checkmk GmbH - License: GNU General Public License v2
 # This file is part of Checkmk (https://checkmk.com). It is subject to the terms and
 # conditions defined in the file COPYING, which is part of this source code package.
+"""This module provides helper classes to modify the Checkmk base configuration.
+
+It includes functionality to add hosts and clusters, set rulesets, and mock autochecks,
+ensuring a controlled environment for testing.
+"""
 
 import uuid
 from collections.abc import Mapping, Sequence

tests/testlib/unit/rabbitmq.py

@@ -2,6 +2,12 @@
 # Copyright (C) 2024 Checkmk GmbH - License: GNU General Public License v2
 # This file is part of Checkmk (https://checkmk.com). It is subject to the terms and
 # conditions defined in the file COPYING, which is part of this source code package.
+"""This module provides functions to configure RabbitMQ components for Checkmk inter-site
+communication.
+
+It includes helper functions to create queues, bindings, permissions, and shovels, and to generate
+expected RabbitMQ definitions for replicated and peer-to-peer sites.
+"""
 
 from collections.abc import Mapping, Sequence
 

tests/testlib/unit/rest_api_client.py

@@ -2,6 +2,12 @@
 # Copyright (C) 2022 Checkmk GmbH - License: GNU General Public License v2
 # This file is part of Checkmk (https://checkmk.com). It is subject to the terms and
 # conditions defined in the file COPYING, which is part of this source code package.
+"""This module defines various classes and functions for handling REST API requests in Checkmk.
+
+It includes clients for different API domains, providing methods to perform create, read, update,
+delete operations and other actions.
+"""
+
 from __future__ import annotations
 
 import abc

tests/testlib/unit/utils.py

@@ -2,6 +2,9 @@
 # Copyright (C) 2019 Checkmk GmbH - License: GNU General Public License v2
 # This file is part of Checkmk (https://checkmk.com). It is subject to the terms and
 # conditions defined in the file COPYING, which is part of this source code package.
+"""Test utilities module provides functionality for managing plugin registries and dynamic
+module importing.
+"""
 
 import contextlib
 import importlib.machinery