Use our own TestRequest

plone/z3cform/crud/README.txt

@@ -57,7 +57,7 @@ Our simple form looks like this:
 This is all that we need to render a combined edit add form containing
 all our items:
 
-  >>> from z3c.form.testing import TestRequest
+  >>> from plone.z3cform.tests import TestRequest
   >>> print MyForm(None, TestRequest())() \
   ... # doctest: +ELLIPSIS +NORMALIZE_WHITESPACE
   <div class="crud-form">...Martha...Peter...</div>

plone/z3cform/fieldsets/README.txt

@@ -38,7 +38,7 @@ set of fields directly on the form. This known as the default fieldset.
 This form should work as-is, i.e. we can update it. First we need to fake a
 request.
 
-  >>> from z3c.form.testing import TestRequest
+  >>> from plone.z3cform.tests import TestRequest
 
   >>> request = TestRequest()
   >>> request.other = {}

plone/z3cform/tests.py

@@ -10,10 +10,17 @@
 import zope.traversing.namespace
 import zope.publisher.interfaces.browser
 import z3c.form.testing
+from z3c.form.interfaces import IFormLayer
 from zope.configuration import xmlconfig
 
 import plone.z3cform.templates
 
+from zope.publisher.browser import TestRequest
+
+
+class TestRequest(TestRequest):
+    interface.implements(IFormLayer)
+
 
 def create_eventlog(event=interface.Interface):
     value = []

plone/z3cform/textlines/textlines.txt

@@ -18,7 +18,7 @@ interface:
 
 The widget can be instantiated only using the request:
 
-  >>> from z3c.form.testing import TestRequest
+  >>> from plone.z3cform.tests import TestRequest
   >>> request = TestRequest()
 
   >>> widget = textlines.TextLinesWidget(request)