Hotfix: Enhanced Release Guide

Author: Nusnus

docs/conf.py

@@ -32,6 +32,8 @@
             r"https://github\.com/Jc2k/pytest-docker-tools\?tab=readme-ov-file#images",
             r"https://github\.com/Jc2k/pytest-docker-tools\?tab=readme-ov-file#containers",
             r"https://github\.com/Jc2k/pytest-docker-tools\?tab=readme-ov-file#fixture-wrappers",
+            r"https://github\.com/celery/celery/blob/main/requirements/test\.txt#L2",
+            r"https://github\.com/celery/celery/blob/main/tox\.ini#L30",
         ],
         autodoc_mock_imports=[],
     )

docs/devguide/release.rst

@@ -12,7 +12,7 @@ It will explain how does the CI/CD pipeline work and how to trigger a new releas
 
 .. contents::
     :local:
-    :depth: 3
+    :depth: 2
 
 CI/CD Pipeline
 ==============
@@ -99,6 +99,79 @@ The following release workflow is triggered automatically when a new released is
 Release Steps
 =============
 
+1. Celery Tests
+~~~~~~~~~~~~~~~
+
+The plugin is used as the official testing infrastructure for Celery. Every new release
+requires manually testing that the new version works as expected with the Celery test suite.
+
+To run the Celery test suite with the new version of the plugin, modify the Celery test environment as follows:
+
+`test.txt <https://github.com/celery/celery/blob/main/requirements/test.txt#>`_
+-------------------------------------------------------------------------------
+
+Comment out the pytest-celery `installation line <https://github.com/celery/celery/blob/main/requirements/test.txt#L2>`_.
+
+`tox.ini <https://github.com/celery/celery/blob/main/tox.ini>`_
+---------------------------------------------------------------
+
+Add ``-e "../pytest-celery[all]"`` to the `deps <https://github.com/celery/celery/blob/main/tox.ini#L30>`_ list.
+
+.. code-block:: ini
+
+    [testenv]
+    ...
+    deps=
+        -e "../pytest-celery[all]"
+        -r{toxinidir}/requirements/test.txt
+    ...
+
+And then execute with tox::
+
+    tox -e 3.12-smoke -- -n auto
+
+This will run the Celery test suite with the new version of the plugin in edit mode, allowing
+you to test the new version before releasing it and tweaking it if necessary to debug any issues.
+
+.. tip::
+
+    Use the following snippet to run all of the tests with the new version of the plugin:
+
+    Pull RabbitMQ & Redis images for the integration tests:
+
+    .. code-block:: console
+
+        docker run -d -p 6379:6379 --name redis redis:latest
+        docker run -d -p 5672:5672 -p 15672:15672 --name rabbitmq rabbitmq:management
+
+    Unit Tests:
+
+    .. code-block:: console
+
+        tox -e 3.12-unit
+
+    Integration Tests:
+
+    .. code-block:: console
+
+        docker start rabbitmq redis
+        tox -e 3.12-integration-rabbitmq_redis
+        docker stop rabbitmq redis
+
+    Unit & Integration & Smoke Tests:
+
+    .. code-block:: console
+
+        tox -e 3.12-unit && docker start rabbitmq redis && tox -e 3.12-integration-rabbitmq_redis && docker stop rabbitmq redis && tox -e 3.12-smoke -- -n auto
+
+.. warning::
+
+    The instructions above assume you have the :pypi:`pytest-celery <pytest-celery>` and :pypi:`celery <celery>` repositories
+    cloned in the same root directory.
+
+2. Release PR
+~~~~~~~~~~~~~
+
 To make a new release, you need to create a new PR with one of these titles.
 
 - **Official Release**: Prepare for release: vX.Y.Z
@@ -112,3 +185,14 @@ The PR should contain the following changes:
 This PR will be used as a double check for the CI to make sure everything passes successfully before releasing the new version.
 Once this PR is merged, the last step is to `release a version on GitHub <https://github.com/celery/pytest-celery/releases/new>`_.
 This will trigger the :ref:`CD pipeline <continuous_deployment>` to deploy the new release to PyPI automatically.
+
+SemVer
+------
+
+If you're not sure how to number the version, consult the `SemVer <https://semver.org/>`_ documentation.
+
+3. Post-release
+~~~~~~~~~~~~~~~
+
+After the release is done, you should update the official Celery to use the new version of the plugin, in the
+same `test.txt <https://github.com/celery/celery/blob/main/requirements/test.txt#>`_ that you modified earlier.