How do I do updateWidgets of a z3c form in tests?

Plone Support Customizing Plone
1

The behavior works fine on the site, but I'm having trouble in integration tests. I have a simple form class

class EventsFilter(AutoExtensibleForm, form.Form):
    schema = IEventsFilter
    ignoreContext = True

In the test I get the view with zope.component and attempt to update. It fails as a component lookup error on getting the widgets for the schema

view2 = getMultiAdapter((self.portal.calendar.event_collection, self.request), name='events-filter')
        view2.update()

test setup:

class IntegrationTestCase(unittest.TestCase):
    layer = testing.INTEGRATION

    def setUp(self):
        super().setUp()
        self.portal = self.layer['portal']
        self.request = self.layer['request']

error:

Traceback (most recent call last):
  File "C:\Python3.6.7\lib\unittest\case.py", line 59, in testPartExecutor
    yield
  File "C:\Python3.6.7\lib\unittest\case.py", line 605, in run
    testMethod()
  File "c:\plone52\src\ims.portals.foobar\ims\portals\foobar\tests\test_eventviews.py", line 23, in test_calendar_view
    view2.update()
  File "c:\plone52\eggs\plone.z3cform-1.1.3-py3.6.egg\plone\z3cform\fieldsets\extensible.py", line 65, in update
    super(ExtensibleForm, self).update()
  File "c:\plone52\eggs\plone.z3cform-1.1.3-py3.6.egg\plone\z3cform\patch.py", line 30, in GroupForm_update
    _original_GroupForm_update(self)
  File "c:\plone52\eggs\z3c.form-3.7.1-py3.6.egg\z3c\form\group.py", line 132, in update
    self.updateWidgets()
  File "c:\plone52\eggs\z3c.form-3.7.1-py3.6.egg\z3c\form\form.py", line 129, in updateWidgets
    (self, self.request, self.getContent()), interfaces.IWidgets)
  File "c:\plone52\eggs\zope.component-4.6.2-py3.6.egg\zope\component\_api.py", line 104, in getMultiAdapter
    raise ComponentLookupError(objects, interface, name)
zope.interface.interfaces.ComponentLookupError: ((<Products.Five.browser.metaconfigure.EventsFilter object at 0x000002C961E1AF98>, <HTTPRequest, URL=http://nohost>, <Collection at /plone/calen
dar/event_collection>), <InterfaceClass z3c.form.interfaces.IWidgets>, '')

If I simply try to call view() it fails at the same point. Some googling suggests I might need to include plone.app.z3cform but I am not sure where, or if that's out dated. This is in Plone 5.2

2

Are you sure that is a "functional test" and not an "integration test"?

3

I did mean integration test, sorry. The original shows that it is using the plone integration test layer.

4

call you the parent classes in your update method?

from plone.autoform.form import AutoExtensibleForm
from z3c.form.form import Form

class EventsFilterForm(AutoExtensibleForm, Form):

    schema = IEventsFilterForm
    ignoreContext = True

    def update(self):
        super(EventsFilterForm, self).update()
5

It does not rewrite the super classes' update method at all.

6

Maybe the test setup of plone.app.z3cform provides a good example on how to add it to the test layer? Like