diff --git a/clients/mock-client.rst b/clients/mock-client.rst
index c4b9faf..5f7b927 100644
--- a/clients/mock-client.rst
+++ b/clients/mock-client.rst
@@ -226,6 +226,9 @@ Or pass a callable, and return a response or exception based on the request::
 
 .. hint::
 
-    If you're using the :doc:`/integrations/symfony-bundle`, the mock client is available as a service with ``httplug.client.mock`` id.
+    If you're using the :doc:`/integrations/symfony-bundle`, the mock client is
+    available as a service with ``httplug.client.mock`` id.
+
+    See :ref:`symfony-functional-tests` for more on how to use the mock client in Symfony.
 
 .. include:: includes/further-reading-async.inc
diff --git a/integrations/symfony-bundle.rst b/integrations/symfony-bundle.rst
index 3a81efa..25cf100 100644
--- a/integrations/symfony-bundle.rst
+++ b/integrations/symfony-bundle.rst
@@ -507,6 +507,8 @@ The only steps they need is ``require`` one of the adapter implementations in
 their projects ``composer.json`` and instantiating the ``HttplugBundle`` in
 their kernel.
 
+.. _symfony-functional-tests:
+
 Mock Responses In Functional Tests
 ``````````````````````````````````
 
@@ -522,8 +524,13 @@ Then, use the mock client factory in your test environment configuration:
                 factory: 'httplug.factory.mock' # replace factory
 
 The client is always wrapped into a plugin client. Therefore you need to access
-the inner client, which has `.client` appended. For the example above, the full
-name is `httplug.clients.my_awesome_backend.client`.
+the inner client to get the mock client. It is available in the container with
+the suffix ``.inner``. For the example above, the full name is
+``httplug.clients.my_awesome_backend.inner``.
+
+If you enable a decorator like ``http_methods_client: true``, the actual mock
+client will be at ``httplug.client.my_awesome_backend.http_methods.inner``. Use
+the ``container:debug`` command to make sure you grab the correct service.
 
 To mock a response in your tests, do:
 
@@ -539,6 +546,22 @@ To mock a response in your tests, do:
     $response->method('getBody')->willReturn(/* Psr\Http\Message\Interface instance containing expected response content. */);
     $client->getContainer()->get('httplug.clients.my_awesome_backend.client')->addResponse($response);
 
+.. hint::
+
+    If you do not specify the factory in your configuration, you can directly
+    overwrite the httplug services:
+
+        # config/services_test.yaml
+        services:
+            # overwrite the http clients for mocking
+            httplug.client.my_awesome_backend:
+                class: Http\Mock\Client
+                public: true
+
+    With this method, the plugin client is not applied. However, if you
+    configure a decorator, your mock client will still be decorated and the
+    mock available as service ``...<decorator>.inner``.
+
 Read more on how the mock client works in the :doc:`mock client documentation </clients/mock-client>`.
 
 .. |clearfloat|  raw:: html