Browser tests aren't the only (and often not the best) way to test browser views. Much nicer to just instantiate the view directly, like so:

>>> view = FooView(context, request)

Then just call any method of the view directly:

>>> self.assertEqual(view.foo(), [])

But where to get the request? Enter TestRequest:

>>> from zope.publisher.browser import TestRequest
>>> request = TestRequest()
>>> view = FooView(context, request)
>>> self.assertEqual(view.foo(), [])

However, sometimes this can result in the following error:

TypeError: ('Could not adapt', <zope.publisher.browser.TestRequest instance URL=http://127.0.0.1>, 
    <InterfaceClass zope.annotation.interfaces.IAnnotations>)

In that case you additionally need to make the request object you've just created annotatable, like so:

>>> from zope.publisher.browser import TestRequest
>>> from zope.annotation.interfaces import IAttributeAnnotatable
>>> from zope.interface import alsoProvides
>>> request = TestRequest()
>>> alsoProvides(request, IAttributeAnnotatable)