Restore the contents directive

Author: javiereguiluz

testing.rst

@@ -523,6 +523,10 @@ The full signature of the ``request()`` method is::
 
 This allows you to create all types of requests you can think of:
 
+.. contents::
+    :local:
+    :depth: 1
+
 .. tip::
 
     The test client is available as the ``test.client`` service in the
@@ -667,6 +671,10 @@ Interacting with the Response
 Like a real browser, the Client and Crawler objects can be used to interact
 with the page you're served:
 
+.. contents::
+    :local:
+    :depth: 1
+
 .. _testing-links:
 
 Clicking on Links
@@ -807,6 +815,10 @@ check anything you want.
 
 However, Symfony provides useful shortcut methods for the most common cases:
 
+.. contents::
+    :local:
+    :depth: 1
+
 .. versionadded:: 4.3
 
     The shortcut methods for assertions using ``WebTestCase`` were introduced