Made the testing form examples consistent

Author: javiereguiluz

testing.rst

@@ -655,8 +655,8 @@ When calling the ``form()`` method, you can also pass an array of field values
 that overrides the default ones::
 
     $form = $buttonCrawlerNode->form(array(
-        'name'              => 'Fabien',
-        'my_form[subject]'  => 'Symfony rocks!',
+        'my_form[name]'    => 'Fabien',
+        'my_form[subject]' => 'Symfony rocks!',
     ));
 
 And if you want to simulate a specific HTTP method for the form, pass it as a
@@ -672,15 +672,15 @@ The field values can also be passed as a second argument of the ``submit()``
 method::
 
     $client->submit($form, array(
-        'name'              => 'Fabien',
-        'my_form[subject]'  => 'Symfony rocks!',
+        'my_form[name]'    => 'Fabien',
+        'my_form[subject]' => 'Symfony rocks!',
     ));
 
 For more complex situations, use the ``Form`` instance as an array to set the
 value of each field individually::
 
     // changes the value of a field
-    $form['name'] = 'Fabien';
+    $form['my_form[name]'] = 'Fabien';
     $form['my_form[subject]'] = 'Symfony rocks!';
 
 There is also a nice API to manipulate the values of the fields according to