- Added the ``pyramid.renderers.null_renderer`` object as an API. The null...

Chris McDonough

2011-07-22 aa2fe1b0a02ba4edde4d285ec0a5a6ec545b7fec

- Added the ``pyramid.renderers.null_renderer`` object as an API.  The null
  renderer is an object that can be used in advanced integration cases as
  input to the view configuration ``renderer=`` argument.  When the null
  renderer is used as a view renderer argument, Pyramid avoids converting the
  view callable result into a Response object.  This is useful if you want to
  reuse the view configuration and lookup machinery outside the context of
  its use by the Pyramid router.  This feature was added for consumption by
  the ``pyramid_rpc`` package, which uses view configuration and lookup
  outside the context of a router in exactly this way.  ``pyramid_rpc`` has
  been broken under 1.1 since 1.1b1; adding it allows us to make it work
  again.

 CHANGES.txt

@@ -1,6 +1,21 @@
Next release
============

Features
--------

- Added the ``pyramid.renderers.null_renderer`` object as an API.  The null
  renderer is an object that can be used in advanced integration cases as
  input to the view configuration ``renderer=`` argument.  When the null
  renderer is used as a view renderer argument, Pyramid avoids converting the
  view callable result into a Response object.  This is useful if you want to
  reuse the view configuration and lookup machinery outside the context of
  its use by the Pyramid router.  This feature was added for consumption by
  the ``pyramid_rpc`` package, which uses view configuration and lookup
  outside the context of a router in exactly this way.  ``pyramid_rpc`` has
  been broken under 1.1 since 1.1b1; adding it allows us to make it work
  again.

Internals
---------


 docs/api/renderers.rst

@@ -13,3 +13,12 @@

.. autoclass:: JSONP

.. attribute:: null_renderer

   An object that can be used in advanced integration cases as input to the
   view configuration ``renderer=`` argument.  When the null renderer is used
   as a view renderer argument, Pyramid avoids converting the view callable
   result into a Response object.  This is useful if you want to reuse the
   view configuration and lookup machinery outside the context of its use by
   the Pyramid router (e.g. the package named ``pyramid_rpc`` does this).


 pyramid/config.py

@@ -2124,7 +2124,7 @@
            context = getattr(request, 'context', None)
            return view(context, request)
        return self.add_view(bwcompat_view, context=HTTPForbidden,
                             wrapper=wrapper)
                             wrapper=wrapper, renderer=renderer)

    @action_method
    def set_notfound_view(self, view=None, attr=None, renderer=None,
@@ -2165,7 +2165,7 @@
            context = getattr(request, 'context', None)
            return view(context, request)
        return self.add_view(bwcompat_view, context=HTTPNotFound,
                             wrapper=wrapper)
                             wrapper=wrapper, renderer=renderer)

    @action_method
    def set_request_factory(self, factory):
@@ -3104,7 +3104,8 @@

    @wraps_view
    def rendered_view(self, view):
        # one way or another this wrapper must produce a Response
        # one way or another this wrapper must produce a Response (unless
        # the renderer is a NullRendererHelper)
        renderer = self.kw.get('renderer')
        if renderer is None:
            # register a default renderer if you want super-dynamic
@@ -3112,6 +3113,8 @@
            # override_renderer to work if a renderer is left unspecified for
            # a view registration.
            return self._response_resolved_view(view)
        if renderer is renderers.null_renderer:
            return view
        return self._rendered_view(view, renderer)

    def _rendered_view(self, view, view_renderer):
@@ -3142,10 +3145,6 @@

    def _response_resolved_view(self, view):
        registry = self.registry
        if hasattr(registry, '_dont_resolve_responses'):
            # for Pyramid unit tests only
            return view

        def viewresult_to_response(context, request):
            result = view(context, request)
            response = registry.queryAdapterOrSelf(result, IResponse)

 pyramid/interfaces.py

@@ -866,4 +866,3 @@
    settings = Attribute('The deployment settings dictionary related '
                         'to the current application')
    


 pyramid/renderers.py

@@ -469,3 +469,22 @@
            registry = self.registry
        return self.__class__(name=name, package=package, registry=registry)

class NullRendererHelper(RendererHelper):
    """ Special renderer helper that has render_* methods which simply return
    the value they are fed rather than converting them to response objects;
    useful for testing purposes and special case view configuration
    registrations that want to use the view configuration machinery but do
    not want actual rendering to happen ."""
    def render_view(self, request, value, view, context):
        return value

    def render(self, value, system_values, request=None):
        return value
    
    def render_to_response(self, value, system_values, request=None):
        return value

    def clone(self, name=None, package=None, registry=None):
        return self
    
null_renderer = NullRendererHelper()

 pyramid/tests/grokkedapp/__init__.py

@@ -1,15 +1,16 @@
from pyramid.view import view_config
from pyramid.renderers import null_renderer

@view_config()
@view_config(renderer=null_renderer)
def grokked(context, request):
    return 'grokked'

@view_config(request_method='POST')
@view_config(request_method='POST', renderer=null_renderer)
def grokked_post(context, request):
    return 'grokked_post'

@view_config(name='stacked2')
@view_config(name='stacked1')
@view_config(name='stacked2', renderer=null_renderer)
@view_config(name='stacked1', renderer=null_renderer)
def stacked(context, request):
    return 'stacked'

@@ -21,8 +22,10 @@
    def __call__(self):
        return 'stacked_class'

stacked_class = view_config(name='stacked_class1')(stacked_class)
stacked_class = view_config(name='stacked_class2')(stacked_class)
stacked_class = view_config(name='stacked_class1',
                            renderer=null_renderer)(stacked_class)
stacked_class = view_config(name='stacked_class2',
                            renderer=null_renderer)(stacked_class)
    
class oldstyle_grokked_class:
    def __init__(self, context, request):
@@ -32,7 +35,8 @@
    def __call__(self):
        return 'oldstyle_grokked_class'
    
oldstyle_grokked_class = view_config(name='oldstyle_grokked_class')(
oldstyle_grokked_class = view_config(name='oldstyle_grokked_class',
                                     renderer=null_renderer)(
    oldstyle_grokked_class)

class grokked_class(object):
@@ -43,17 +47,19 @@
    def __call__(self):
        return 'grokked_class'
        
grokked_class = view_config(name='grokked_class')(grokked_class)
grokked_class = view_config(name='grokked_class',
                            renderer=null_renderer)(grokked_class)

class Foo(object):
    def __call__(self, context, request):
        return 'grokked_instance'

grokked_instance = Foo()
grokked_instance = view_config(name='grokked_instance')(grokked_instance)
grokked_instance = view_config(name='grokked_instance',
                               renderer=null_renderer)(grokked_instance)

class Base(object):
    @view_config(name='basemethod')
    @view_config(name='basemethod', renderer=null_renderer)
    def basemethod(self):
        """ """
    
@@ -62,16 +68,16 @@
        self.context = context
        self.request = request

    @view_config(name='method1')
    @view_config(name='method1', renderer=null_renderer)
    def method1(self):
        return 'method1'

    @view_config(name='method2')
    @view_config(name='method2', renderer=null_renderer)
    def method2(self):
        return 'method2'

    @view_config(name='stacked_method2')
    @view_config(name='stacked_method1')
    @view_config(name='stacked_method2', renderer=null_renderer)
    @view_config(name='stacked_method1', renderer=null_renderer)
    def stacked(self):
        return 'stacked_method'


 pyramid/tests/grokkedapp/another.py

@@ -1,15 +1,16 @@
from pyramid.view import view_config
from pyramid.renderers import null_renderer

@view_config(name='another')
@view_config(name='another', renderer=null_renderer)
def grokked(context, request):
    return 'another_grokked'

@view_config(request_method='POST', name='another')
@view_config(request_method='POST', name='another', renderer=null_renderer)
def grokked_post(context, request):
    return 'another_grokked_post'

@view_config(name='another_stacked2')
@view_config(name='another_stacked1')
@view_config(name='another_stacked2', renderer=null_renderer)
@view_config(name='another_stacked1', renderer=null_renderer)
def stacked(context, request):
    return 'another_stacked'

@@ -21,8 +22,10 @@
    def __call__(self):
        return 'another_stacked_class'

stacked_class = view_config(name='another_stacked_class1')(stacked_class)
stacked_class = view_config(name='another_stacked_class2')(stacked_class)
stacked_class = view_config(name='another_stacked_class1',
                            renderer=null_renderer)(stacked_class)
stacked_class = view_config(name='another_stacked_class2',
                            renderer=null_renderer)(stacked_class)

class oldstyle_grokked_class:
    def __init__(self, context, request):
@@ -32,7 +35,8 @@
    def __call__(self):
        return 'another_oldstyle_grokked_class'
    
oldstyle_grokked_class = view_config(name='another_oldstyle_grokked_class')(
oldstyle_grokked_class = view_config(name='another_oldstyle_grokked_class',
                                     renderer=null_renderer)(
    oldstyle_grokked_class)

class grokked_class(object):
@@ -43,14 +47,16 @@
    def __call__(self):
        return 'another_grokked_class'
        
grokked_class = view_config(name='another_grokked_class')(grokked_class)
grokked_class = view_config(name='another_grokked_class',
                            renderer=null_renderer)(grokked_class)

class Foo(object):
    def __call__(self, context, request):
        return 'another_grokked_instance'

grokked_instance = Foo()
grokked_instance = view_config(name='another_grokked_instance')(
grokked_instance = view_config(name='another_grokked_instance',
                               renderer=null_renderer)(
    grokked_instance)

# ungrokkable

 pyramid/tests/grokkedapp/pod/notinit.py

@@ -1,5 +1,6 @@
from pyramid.view import view_config
from pyramid.renderers import null_renderer

@view_config(name='pod_notinit')
@view_config(name='pod_notinit', renderer=null_renderer)
def subpackage_notinit(context, request):
    return 'pod_notinit'

 pyramid/tests/grokkedapp/subpackage/__init__.py

@@ -1,5 +1,6 @@
from pyramid.view import view_config
from pyramid.renderers import null_renderer

@view_config(name='subpackage_init')
@view_config(name='subpackage_init', renderer=null_renderer)
def subpackage_init(context, request):
    return 'subpackage_init'

 pyramid/tests/grokkedapp/subpackage/notinit.py

@@ -1,5 +1,6 @@
from pyramid.view import view_config
from pyramid.renderers import null_renderer

@view_config(name='subpackage_notinit')
@view_config(name='subpackage_notinit', renderer=null_renderer)
def subpackage_notinit(context, request):
    return 'subpackage_notinit'

 pyramid/tests/grokkedapp/subpackage/subsubpackage/__init__.py

@@ -1,5 +1,6 @@
from pyramid.view import view_config
from pyramid.renderers import null_renderer

@view_config(name='subsubpackage_init')
@view_config(name='subsubpackage_init', renderer=null_renderer)
def subpackage_init(context, request):
    return 'subsubpackage_init'

 pyramid/tests/test_config.py

@@ -11,7 +11,6 @@
    def _makeOne(self, *arg, **kw):
        from pyramid.config import Configurator
        config = Configurator(*arg, **kw)
        config.registry._dont_resolve_responses = True
        return config

    def _registerRenderer(self, config, name='.txt'):
@@ -364,6 +363,7 @@
            config.registry.queryAdapter(response, IResponse) is response)

    def test_setup_registry_explicit_notfound_trumps_iexceptionresponse(self):
        from pyramid.renderers import null_renderer
        from zope.interface import implementedBy
        from pyramid.interfaces import IRequest
        from pyramid.httpexceptions import HTTPNotFound
@@ -373,7 +373,7 @@
        config.setup_registry() # registers IExceptionResponse default view
        def myview(context, request):
            return 'OK'
        config.add_view(myview, context=HTTPNotFound)
        config.add_view(myview, context=HTTPNotFound, renderer=null_renderer)
        request = self._makeRequest(config)
        view = self._getViewCallable(config,
                                     ctx_iface=implementedBy(HTTPNotFound),
@@ -778,12 +778,14 @@
                          None, True, True)

    def test_add_view_with_request_type(self):
        from pyramid.renderers import null_renderer
        from zope.interface import directlyProvides
        from pyramid.interfaces import IRequest
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view,
                        request_type='pyramid.interfaces.IRequest')
                        request_type='pyramid.interfaces.IRequest',
                        renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        request = DummyRequest()
        self._assertNotFound(wrapper, None, request)
@@ -809,29 +811,34 @@
        self.assertEqual(wrapper.__doc__, view.__doc__)

    def test_add_view_view_callable_dottedname(self):
        from pyramid.renderers import null_renderer
        config = self._makeOne(autocommit=True)
        config.add_view(view='pyramid.tests.test_config.dummy_view')
        config.add_view(view='pyramid.tests.test_config.dummy_view',
                        renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        self.assertEqual(wrapper(None, None), 'OK')

    def test_add_view_with_function_callable(self):
        from pyramid.renderers import null_renderer
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view)
        config.add_view(view=view, renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        result = wrapper(None, None)
        self.assertEqual(result, 'OK')

    def test_add_view_with_function_callable_requestonly(self):
        from pyramid.renderers import null_renderer
        def view(request):
            return 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view)
        config.add_view(view=view, renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        result = wrapper(None, None)
        self.assertEqual(result, 'OK')

    def test_add_view_with_decorator(self):
        from pyramid.renderers import null_renderer
        def view(request):
            """ ABC """
            return 'OK'
@@ -840,7 +847,8 @@
                return fn(context, request)
            return inner
        config = self._makeOne(autocommit=True)
        config.add_view(view=view, decorator=view_wrapper)
        config.add_view(view=view, decorator=view_wrapper,
                        renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        self.assertFalse(wrapper is view)
        self.assertEqual(wrapper.__doc__, view.__doc__)
@@ -869,30 +877,33 @@
        assert_similar_datetime(expires, when)

    def test_add_view_as_instance(self):
        from pyramid.renderers import null_renderer
        class AView:
            def __call__(self, context, request):
                """ """
                return 'OK'
        view = AView()
        config = self._makeOne(autocommit=True)
        config.add_view(view=view)
        config.add_view(view=view, renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        result = wrapper(None, None)
        self.assertEqual(result, 'OK')

    def test_add_view_as_instance_requestonly(self):
        from pyramid.renderers import null_renderer
        class AView:
            def __call__(self, request):
                """ """
                return 'OK'
        view = AView()
        config = self._makeOne(autocommit=True)
        config.add_view(view=view)
        config.add_view(view=view, renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        result = wrapper(None, None)
        self.assertEqual(result, 'OK')

    def test_add_view_as_oldstyle_class(self):
        from pyramid.renderers import null_renderer
        class view:
            def __init__(self, context, request):
                self.context = context
@@ -901,7 +912,7 @@
            def __call__(self):
                return 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view)
        config.add_view(view=view, renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        request = self._makeRequest(config)
        result = wrapper(None, request)
@@ -909,6 +920,7 @@
        self.assertEqual(request.__view__.__class__, view)

    def test_add_view_as_oldstyle_class_requestonly(self):
        from pyramid.renderers import null_renderer
        class view:
            def __init__(self, request):
                self.request = request
@@ -916,7 +928,7 @@
            def __call__(self):
                return 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view)
        config.add_view(view=view, renderer=null_renderer)
        wrapper = self._getViewCallable(config)

        request = self._makeRequest(config)
@@ -925,70 +937,79 @@
        self.assertEqual(request.__view__.__class__, view)

    def test_add_view_context_as_class(self):
        from pyramid.renderers import null_renderer
        from zope.interface import implementedBy
        view = lambda *arg: 'OK'
        class Foo:
            pass
        config = self._makeOne(autocommit=True)
        config.add_view(context=Foo, view=view)
        config.add_view(context=Foo, view=view, renderer=null_renderer)
        foo = implementedBy(Foo)
        wrapper = self._getViewCallable(config, foo)
        self.assertEqual(wrapper, view)

    def test_add_view_context_as_iface(self):
        from pyramid.renderers import null_renderer
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(context=IDummy, view=view)
        config.add_view(context=IDummy, view=view, renderer=null_renderer)
        wrapper = self._getViewCallable(config, IDummy)
        self.assertEqual(wrapper, view)

    def test_add_view_context_as_dottedname(self):
        from pyramid.renderers import null_renderer
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(context='pyramid.tests.test_config.IDummy',
                        view=view)
                        view=view,  renderer=null_renderer)
        wrapper = self._getViewCallable(config, IDummy)
        self.assertEqual(wrapper, view)

    def test_add_view_for__as_dottedname(self):
        from pyramid.renderers import null_renderer
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(for_='pyramid.tests.test_config.IDummy',
                        view=view)
                        view=view, renderer=null_renderer)
        wrapper = self._getViewCallable(config, IDummy)
        self.assertEqual(wrapper, view)

    def test_add_view_for_as_class(self):
        # ``for_`` is older spelling for ``context``
        from pyramid.renderers import null_renderer
        from zope.interface import implementedBy
        view = lambda *arg: 'OK'
        class Foo:
            pass
        config = self._makeOne(autocommit=True)
        config.add_view(for_=Foo, view=view)
        config.add_view(for_=Foo, view=view, renderer=null_renderer)
        foo = implementedBy(Foo)
        wrapper = self._getViewCallable(config, foo)
        self.assertEqual(wrapper, view)

    def test_add_view_for_as_iface(self):
        # ``for_`` is older spelling for ``context``
        from pyramid.renderers import null_renderer
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(for_=IDummy, view=view)
        config.add_view(for_=IDummy, view=view, renderer=null_renderer)
        wrapper = self._getViewCallable(config, IDummy)
        self.assertEqual(wrapper, view)

    def test_add_view_context_trumps_for(self):
        # ``for_`` is older spelling for ``context``
        from pyramid.renderers import null_renderer
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        class Foo:
            pass
        config.add_view(context=IDummy, for_=Foo, view=view)
        config.add_view(context=IDummy, for_=Foo, view=view,
                        renderer=null_renderer)
        wrapper = self._getViewCallable(config, IDummy)
        self.assertEqual(wrapper, view)

    def test_add_view_register_secured_view(self):
        from pyramid.renderers import null_renderer
        from zope.interface import Interface
        from pyramid.interfaces import IRequest
        from pyramid.interfaces import ISecuredView
@@ -996,13 +1017,14 @@
        view = lambda *arg: 'OK'
        view.__call_permissive__ = view
        config = self._makeOne(autocommit=True)
        config.add_view(view=view)
        config.add_view(view=view, renderer=null_renderer)
        wrapper = config.registry.adapters.lookup(
            (IViewClassifier, IRequest, Interface),
            ISecuredView, name='', default=None)
        self.assertEqual(wrapper, view)

    def test_add_view_exception_register_secured_view(self):
        from pyramid.renderers import null_renderer
        from zope.interface import implementedBy
        from pyramid.interfaces import IRequest
        from pyramid.interfaces import IView
@@ -1010,13 +1032,14 @@
        view = lambda *arg: 'OK'
        view.__call_permissive__ = view
        config = self._makeOne(autocommit=True)
        config.add_view(view=view, context=RuntimeError)
        config.add_view(view=view, context=RuntimeError, renderer=null_renderer)
        wrapper = config.registry.adapters.lookup(
            (IExceptionViewClassifier, IRequest, implementedBy(RuntimeError)),
            IView, name='', default=None)
        self.assertEqual(wrapper, view)

    def test_add_view_same_phash_overrides_existing_single_view(self):
        from pyramid.renderers import null_renderer
        from hashlib import md5
        from zope.interface import Interface
        from pyramid.interfaces import IRequest
@@ -1032,7 +1055,7 @@
            view, (IViewClassifier, IRequest, Interface), IView, name='')
        def newview(context, request):
            return 'OK'
        config.add_view(view=newview, xhr=True)
        config.add_view(view=newview, xhr=True, renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        self.assertFalse(IMultiView.providedBy(wrapper))
        request = DummyRequest()
@@ -1040,6 +1063,7 @@
        self.assertEqual(wrapper(None, request), 'OK')

    def test_add_view_exc_same_phash_overrides_existing_single_view(self):
        from pyramid.renderers import null_renderer
        from hashlib import md5
        from zope.interface import implementedBy
        from pyramid.interfaces import IRequest
@@ -1057,7 +1081,8 @@
            IView, name='')
        def newview(context, request):
            return 'OK'
        config.add_view(view=newview, xhr=True, context=RuntimeError)
        config.add_view(view=newview, xhr=True, context=RuntimeError,
                        renderer=null_renderer)
        wrapper = self._getViewCallable(
            config, ctx_iface=implementedBy(RuntimeError), exception_view=True)
        self.assertFalse(IMultiView.providedBy(wrapper))
@@ -1066,6 +1091,7 @@
        self.assertEqual(wrapper(None, request), 'OK')

    def test_add_view_default_phash_overrides_no_phash(self):
        from pyramid.renderers import null_renderer
        from zope.interface import Interface
        from pyramid.interfaces import IRequest
        from pyramid.interfaces import IView
@@ -1077,7 +1103,7 @@
            view, (IViewClassifier, IRequest, Interface), IView, name='')
        def newview(context, request):
            return 'OK'
        config.add_view(view=newview)
        config.add_view(view=newview, renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        self.assertFalse(IMultiView.providedBy(wrapper))
        request = DummyRequest()
@@ -1085,6 +1111,7 @@
        self.assertEqual(wrapper(None, request), 'OK')

    def test_add_view_exc_default_phash_overrides_no_phash(self):
        from pyramid.renderers import null_renderer
        from zope.interface import implementedBy
        from pyramid.interfaces import IRequest
        from pyramid.interfaces import IView
@@ -1098,7 +1125,8 @@
            IView, name='')
        def newview(context, request):
            return 'OK'
        config.add_view(view=newview, context=RuntimeError)
        config.add_view(view=newview, context=RuntimeError,
                        renderer=null_renderer)
        wrapper = self._getViewCallable(
            config, ctx_iface=implementedBy(RuntimeError), exception_view=True)
        self.assertFalse(IMultiView.providedBy(wrapper))
@@ -1107,6 +1135,7 @@
        self.assertEqual(wrapper(None, request), 'OK')

    def test_add_view_default_phash_overrides_default_phash(self):
        from pyramid.renderers import null_renderer
        from pyramid.config import DEFAULT_PHASH
        from zope.interface import Interface
        from pyramid.interfaces import IRequest
@@ -1120,7 +1149,7 @@
            view, (IViewClassifier, IRequest, Interface), IView, name='')
        def newview(context, request):
            return 'OK'
        config.add_view(view=newview)
        config.add_view(view=newview, renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        self.assertFalse(IMultiView.providedBy(wrapper))
        request = DummyRequest()
@@ -1128,6 +1157,7 @@
        self.assertEqual(wrapper(None, request), 'OK')

    def test_add_view_exc_default_phash_overrides_default_phash(self):
        from pyramid.renderers import null_renderer
        from pyramid.config import DEFAULT_PHASH
        from zope.interface import implementedBy
        from pyramid.interfaces import IRequest
@@ -1143,7 +1173,8 @@
            IView, name='')
        def newview(context, request):
            return 'OK'
        config.add_view(view=newview, context=RuntimeError)
        config.add_view(view=newview, context=RuntimeError,
                        renderer=null_renderer)
        wrapper = self._getViewCallable(
            config, ctx_iface=implementedBy(RuntimeError), exception_view=True)
        self.assertFalse(IMultiView.providedBy(wrapper))
@@ -1152,6 +1183,7 @@
        self.assertEqual(wrapper(None, request), 'OK')

    def test_add_view_multiview_replaces_existing_view(self):
        from pyramid.renderers import null_renderer
        from zope.interface import Interface
        from pyramid.interfaces import IRequest
        from pyramid.interfaces import IView
@@ -1162,12 +1194,13 @@
        config = self._makeOne(autocommit=True)
        config.registry.registerAdapter(
            view, (IViewClassifier, IRequest, Interface), IView, name='')
        config.add_view(view=view)
        config.add_view(view=view, renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        self.assertTrue(IMultiView.providedBy(wrapper))
        self.assertEqual(wrapper(None, None), 'OK')

    def test_add_view_exc_multiview_replaces_existing_view(self):
        from pyramid.renderers import null_renderer
        from zope.interface import implementedBy
        from pyramid.interfaces import IRequest
        from pyramid.interfaces import IView
@@ -1185,13 +1218,15 @@
            view,
            (IExceptionViewClassifier, IRequest, implementedBy(RuntimeError)),
            IView, name='')
        config.add_view(view=view, context=RuntimeError)
        config.add_view(view=view, context=RuntimeError,
                        renderer=null_renderer)
        wrapper = self._getViewCallable(
            config, ctx_iface=implementedBy(RuntimeError), exception_view=True)
        self.assertTrue(IMultiView.providedBy(wrapper))
        self.assertEqual(wrapper(None, None), 'OK')

    def test_add_view_multiview_replaces_existing_securedview(self):
        from pyramid.renderers import null_renderer
        from zope.interface import Interface
        from pyramid.interfaces import IRequest
        from pyramid.interfaces import ISecuredView
@@ -1203,12 +1238,13 @@
        config.registry.registerAdapter(
            view, (IViewClassifier, IRequest, Interface),
            ISecuredView, name='')
        config.add_view(view=view)
        config.add_view(view=view, renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        self.assertTrue(IMultiView.providedBy(wrapper))
        self.assertEqual(wrapper(None, None), 'OK')

    def test_add_view_exc_multiview_replaces_existing_securedview(self):
        from pyramid.renderers import null_renderer
        from zope.interface import implementedBy
        from pyramid.interfaces import IRequest
        from pyramid.interfaces import ISecuredView
@@ -1226,13 +1262,14 @@
            view,
            (IExceptionViewClassifier, IRequest, implementedBy(RuntimeError)),
            ISecuredView, name='')
        config.add_view(view=view, context=RuntimeError)
        config.add_view(view=view, context=RuntimeError, renderer=null_renderer)
        wrapper = self._getViewCallable(
            config, ctx_iface=implementedBy(RuntimeError), exception_view=True)
        self.assertTrue(IMultiView.providedBy(wrapper))
        self.assertEqual(wrapper(None, None), 'OK')

    def test_add_view_with_accept_multiview_replaces_existing_view(self):
        from pyramid.renderers import null_renderer
        from zope.interface import Interface
        from pyramid.interfaces import IRequest
        from pyramid.interfaces import IView
@@ -1245,7 +1282,7 @@
        config = self._makeOne(autocommit=True)
        config.registry.registerAdapter(
            view, (IViewClassifier, IRequest, Interface), IView, name='')
        config.add_view(view=view2, accept='text/html')
        config.add_view(view=view2, accept='text/html', renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        self.assertTrue(IMultiView.providedBy(wrapper))
        self.assertEqual(len(wrapper.views), 1)
@@ -1256,6 +1293,7 @@
        self.assertEqual(wrapper(None, request), 'OK2')

    def test_add_view_exc_with_accept_multiview_replaces_existing_view(self):
        from pyramid.renderers import null_renderer
        from zope.interface import implementedBy
        from pyramid.interfaces import IRequest
        from pyramid.interfaces import IView
@@ -1275,7 +1313,8 @@
            view,
            (IExceptionViewClassifier, IRequest, implementedBy(RuntimeError)),
            IView, name='')
        config.add_view(view=view2, accept='text/html', context=RuntimeError)
        config.add_view(view=view2, accept='text/html', context=RuntimeError,
                        renderer=null_renderer)
        wrapper = self._getViewCallable(
            config, ctx_iface=implementedBy(RuntimeError), exception_view=True)
        self.assertTrue(IMultiView.providedBy(wrapper))
@@ -1287,6 +1326,7 @@
        self.assertEqual(wrapper(None, request), 'OK2')

    def test_add_view_multiview_replaces_existing_view_with___accept__(self):
        from pyramid.renderers import null_renderer
        from zope.interface import Interface
        from pyramid.interfaces import IRequest
        from pyramid.interfaces import IView
@@ -1301,7 +1341,7 @@
        config = self._makeOne(autocommit=True)
        config.registry.registerAdapter(
            view, (IViewClassifier, IRequest, Interface), IView, name='')
        config.add_view(view=view2)
        config.add_view(view=view2, renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        self.assertTrue(IMultiView.providedBy(wrapper))
        self.assertEqual(len(wrapper.views), 1)
@@ -1312,6 +1352,7 @@
        self.assertEqual(wrapper(None, request), 'OK')

    def test_add_view_exc_mulview_replaces_existing_view_with___accept__(self):
        from pyramid.renderers import null_renderer
        from zope.interface import implementedBy
        from pyramid.interfaces import IRequest
        from pyramid.interfaces import IView
@@ -1333,7 +1374,8 @@
            view,
            (IExceptionViewClassifier, IRequest, implementedBy(RuntimeError)),
            IView, name='')
        config.add_view(view=view2, context=RuntimeError)
        config.add_view(view=view2, context=RuntimeError,
                        renderer=null_renderer)
        wrapper = self._getViewCallable(
            config, ctx_iface=implementedBy(RuntimeError), exception_view=True)
        self.assertTrue(IMultiView.providedBy(wrapper))
@@ -1345,6 +1387,7 @@
        self.assertEqual(wrapper(None, request), 'OK')

    def test_add_view_multiview_replaces_multiview(self):
        from pyramid.renderers import null_renderer
        from zope.interface import Interface
        from pyramid.interfaces import IRequest
        from pyramid.interfaces import IMultiView
@@ -1355,13 +1398,14 @@
            view, (IViewClassifier, IRequest, Interface),
            IMultiView, name='')
        view2 = lambda *arg: 'OK2'
        config.add_view(view=view2)
        config.add_view(view=view2, renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        self.assertTrue(IMultiView.providedBy(wrapper))
        self.assertEqual([x[:2] for x in wrapper.views], [(view2, None)])
        self.assertEqual(wrapper(None, None), 'OK1')

    def test_add_view_exc_multiview_replaces_multiview(self):
        from pyramid.renderers import null_renderer
        from zope.interface import implementedBy
        from pyramid.interfaces import IRequest
        from pyramid.interfaces import IMultiView
@@ -1378,7 +1422,8 @@
            (IExceptionViewClassifier, IRequest, implementedBy(RuntimeError)),
            IMultiView, name='')
        view2 = lambda *arg: 'OK2'
        config.add_view(view=view2, context=RuntimeError)
        config.add_view(view=view2, context=RuntimeError,
                        renderer=null_renderer)
        wrapper = self._getViewCallable(
            config, ctx_iface=implementedBy(RuntimeError), exception_view=True)
        self.assertTrue(IMultiView.providedBy(wrapper))
@@ -1386,6 +1431,7 @@
        self.assertEqual(wrapper(None, None), 'OK1')

    def test_add_view_multiview_context_superclass_then_subclass(self):
        from pyramid.renderers import null_renderer
        from zope.interface import Interface
        from pyramid.interfaces import IRequest
        from pyramid.interfaces import IView
@@ -1400,7 +1446,7 @@
        config = self._makeOne(autocommit=True)
        config.registry.registerAdapter(
            view, (IViewClassifier, IRequest, ISuper), IView, name='')
        config.add_view(view=view2, for_=ISub)
        config.add_view(view=view2, for_=ISub, renderer=null_renderer)
        wrapper = self._getViewCallable(config, ISuper, IRequest)
        self.assertFalse(IMultiView.providedBy(wrapper))
        self.assertEqual(wrapper(None, None), 'OK')
@@ -1409,6 +1455,7 @@
        self.assertEqual(wrapper(None, None), 'OK2')

    def test_add_view_multiview_exception_superclass_then_subclass(self):
        from pyramid.renderers import null_renderer
        from zope.interface import implementedBy
        from pyramid.interfaces import IRequest
        from pyramid.interfaces import IView
@@ -1426,7 +1473,7 @@
            view, (IViewClassifier, IRequest, Super), IView, name='')
        config.registry.registerAdapter(
            view, (IExceptionViewClassifier, IRequest, Super), IView, name='')
        config.add_view(view=view2, for_=Sub)
        config.add_view(view=view2, for_=Sub, renderer=null_renderer)
        wrapper = self._getViewCallable(
            config, implementedBy(Super), IRequest)
        wrapper_exc_view = self._getViewCallable(
@@ -1443,6 +1490,7 @@
        self.assertEqual(wrapper_exc_view(None, None), 'OK2')

    def test_add_view_multiview_call_ordering(self):
        from pyramid.renderers import null_renderer as nr
        from zope.interface import directlyProvides
        def view1(context, request): return 'view1'
        def view2(context, request): return 'view2'
@@ -1453,15 +1501,18 @@
        def view7(context, request): return 'view7'
        def view8(context, request): return 'view8'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view1)
        config.add_view(view=view2, request_method='POST')
        config.add_view(view=view3,request_param='param')
        config.add_view(view=view4, containment=IDummy)
        config.add_view(view=view5, request_method='POST',request_param='param')
        config.add_view(view=view6, request_method='POST', containment=IDummy)
        config.add_view(view=view7, request_param='param', containment=IDummy)
        config.add_view(view=view1, renderer=nr)
        config.add_view(view=view2, request_method='POST', renderer=nr)
        config.add_view(view=view3,request_param='param', renderer=nr)
        config.add_view(view=view4, containment=IDummy, renderer=nr)
        config.add_view(view=view5, request_method='POST',
                        request_param='param',  renderer=nr)
        config.add_view(view=view6, request_method='POST', containment=IDummy,
                        renderer=nr)
        config.add_view(view=view7, request_param='param', containment=IDummy,
                        renderer=nr)
        config.add_view(view=view8, request_method='POST',request_param='param',
                        containment=IDummy)
                        containment=IDummy, renderer=nr)


        wrapper = self._getViewCallable(config)
@@ -1585,11 +1636,12 @@
        self.assertEqual(result.settings, settings)

    def test_add_view_with_request_type_as_iface(self):
        from pyramid.renderers import null_renderer
        from zope.interface import directlyProvides
        def view(context, request):
            return 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(request_type=IDummy, view=view)
        config.add_view(request_type=IDummy, view=view, renderer=null_renderer)
        wrapper = self._getViewCallable(config, None)
        request = self._makeRequest(config)
        directlyProvides(request, IDummy)
@@ -1604,10 +1656,11 @@
                          config.add_view, view, '', None, None, object)

    def test_add_view_with_route_name(self):
        from pyramid.renderers import null_renderer
        from zope.component import ComponentLookupError
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view, route_name='foo')
        config.add_view(view=view, route_name='foo', renderer=null_renderer)
        self.assertEqual(len(config.registry.deferred_route_views), 1)
        infos = config.registry.deferred_route_views['foo']
        self.assertEqual(len(infos), 1)
@@ -1647,11 +1700,13 @@
        self.assertEqual(info['custom_predicates'], ('123',))

    def test_add_view_with_route_name_exception(self):
        from pyramid.renderers import null_renderer
        from zope.interface import implementedBy
        from zope.component import ComponentLookupError
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view, route_name='foo', context=RuntimeError)
        config.add_view(view=view, route_name='foo', context=RuntimeError,
                        renderer=null_renderer)
        self.assertEqual(len(config.registry.deferred_route_views), 1)
        infos = config.registry.deferred_route_views['foo']
        self.assertEqual(len(infos), 1)
@@ -1678,9 +1733,11 @@
        self.assertEqual(wrapper_exc_view(None, None), 'OK')

    def test_add_view_with_request_method_true(self):
        from pyramid.renderers import null_renderer
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view, request_method='POST')
        config.add_view(view=view, request_method='POST',
                        renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        request = self._makeRequest(config)
        request.method = 'POST'
@@ -1696,9 +1753,10 @@
        self._assertNotFound(wrapper, None, request)

    def test_add_view_with_request_param_noval_true(self):
        from pyramid.renderers import null_renderer
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view, request_param='abc')
        config.add_view(view=view, request_param='abc', renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        request = self._makeRequest(config)
        request.params = {'abc':''}
@@ -1714,9 +1772,11 @@
        self._assertNotFound(wrapper, None, request)

    def test_add_view_with_request_param_val_true(self):
        from pyramid.renderers import null_renderer
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view, request_param='abc=123')
        config.add_view(view=view, request_param='abc=123',
                        renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        request = self._makeRequest(config)
        request.params = {'abc':'123'}
@@ -1732,9 +1792,10 @@
        self._assertNotFound(wrapper, None, request)

    def test_add_view_with_xhr_true(self):
        from pyramid.renderers import null_renderer
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view, xhr=True)
        config.add_view(view=view, xhr=True, renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        request = self._makeRequest(config)
        request.is_xhr = True
@@ -1757,9 +1818,10 @@
                          config.add_view, view=view, header='Host:a\\')

    def test_add_view_with_header_noval_match(self):
        from pyramid.renderers import null_renderer
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view, header='Host')
        config.add_view(view=view, header='Host', renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        request = self._makeRequest(config)
        request.headers = {'Host':'whatever'}
@@ -1775,9 +1837,10 @@
        self._assertNotFound(wrapper, None, request)

    def test_add_view_with_header_val_match(self):
        from pyramid.renderers import null_renderer
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view, header=r'Host:\d')
        config.add_view(view=view, header=r'Host:\d', renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        request = self._makeRequest(config)
        request.headers = {'Host':'1'}
@@ -1803,9 +1866,10 @@
        self.assertRaises(HTTPNotFound, wrapper, None, request)

    def test_add_view_with_accept_match(self):
        from pyramid.renderers import null_renderer
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view, accept='text/xml')
        config.add_view(view=view, accept='text/xml', renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        request = self._makeRequest(config)
        request.accept = ['text/xml']
@@ -1821,10 +1885,11 @@
        self._assertNotFound(wrapper, None, request)

    def test_add_view_with_containment_true(self):
        from pyramid.renderers import null_renderer
        from zope.interface import directlyProvides
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view, containment=IDummy)
        config.add_view(view=view, containment=IDummy, renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        context = DummyContext()
        directlyProvides(context, IDummy)
@@ -1839,12 +1904,14 @@
        self._assertNotFound(wrapper, context, None)

    def test_add_view_with_containment_dottedname(self):
        from pyramid.renderers import null_renderer
        from zope.interface import directlyProvides
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(
            view=view,
            containment='pyramid.tests.test_config.IDummy')
            containment='pyramid.tests.test_config.IDummy',
            renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        context = DummyContext()
        directlyProvides(context, IDummy)
@@ -1858,9 +1925,10 @@
                          config.add_view, view=view, path_info='\\')

    def test_add_view_with_path_info_match(self):
        from pyramid.renderers import null_renderer
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view, path_info='/foo')
        config.add_view(view=view, path_info='/foo', renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        request = self._makeRequest(config)
        request.path_info = '/foo'
@@ -1876,6 +1944,7 @@
        self._assertNotFound(wrapper, None, request)

    def test_add_view_with_custom_predicates_match(self):
        from pyramid.renderers import null_renderer
        view = lambda *arg: 'OK'
        config = self._makeOne(autocommit=True)
        def pred1(context, request):
@@ -1883,7 +1952,8 @@
        def pred2(context, request):
            return True
        predicates = (pred1, pred2)
        config.add_view(view=view, custom_predicates=predicates)
        config.add_view(view=view, custom_predicates=predicates,
                        renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        request = self._makeRequest(config)
        self.assertEqual(wrapper(None, request), 'OK')
@@ -1902,24 +1972,30 @@
        self._assertNotFound(wrapper, None, request)

    def test_add_view_custom_predicate_bests_standard_predicate(self):
        from pyramid.renderers import null_renderer
        view = lambda *arg: 'OK'
        view2 = lambda *arg: 'NOT OK'
        config = self._makeOne(autocommit=True)
        def pred1(context, request):
            return True
        config.add_view(view=view, custom_predicates=(pred1,))
        config.add_view(view=view2, request_method='GET')
        config.add_view(view=view, custom_predicates=(pred1,),
                        renderer=null_renderer)
        config.add_view(view=view2, request_method='GET',
                        renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        request = self._makeRequest(config)
        request.method = 'GET'
        self.assertEqual(wrapper(None, request), 'OK')

    def test_add_view_custom_more_preds_first_bests_fewer_preds_last(self):
        from pyramid.renderers import null_renderer
        view = lambda *arg: 'OK'
        view2 = lambda *arg: 'NOT OK'
        config = self._makeOne(autocommit=True)
        config.add_view(view=view, request_method='GET', xhr=True)
        config.add_view(view=view2, request_method='GET')
        config.add_view(view=view, request_method='GET', xhr=True,
                        renderer=null_renderer)
        config.add_view(view=view2, request_method='GET',
                        renderer=null_renderer)
        wrapper = self._getViewCallable(config)
        request = self._makeRequest(config)
        request.method = 'GET'
@@ -1936,6 +2012,7 @@
        self.assertRaises(ConfigurationConflictError, config.commit)

    def test_add_view_with_permission(self):
        from pyramid.renderers import null_renderer
        view1 = lambda *arg: 'OK'
        outerself = self
        class DummyPolicy(object):
@@ -1951,12 +2028,13 @@
        config = self._makeOne(authorization_policy=policy,
                               authentication_policy=policy,
                               autocommit=True)
        config.add_view(view=view1, permission='view')
        config.add_view(view=view1, permission='view', renderer=null_renderer)
        view = self._getViewCallable(config)
        request = self._makeRequest(config)
        self.assertEqual(view(None, request), 'OK')

    def test_add_view_with_default_permission_no_explicit_permission(self):
        from pyramid.renderers import null_renderer
        view1 = lambda *arg: 'OK'
        outerself = self
        class DummyPolicy(object):
@@ -1973,19 +2051,20 @@
                               authentication_policy=policy,
                               default_permission='view',
                               autocommit=True)
        config.add_view(view=view1)
        config.add_view(view=view1, renderer=null_renderer)
        view = self._getViewCallable(config)
        request = self._makeRequest(config)
        self.assertEqual(view(None, request), 'OK')

    def test_add_view_with_no_default_permission_no_explicit_permission(self):
        from pyramid.renderers import null_renderer
        view1 = lambda *arg: 'OK'
        class DummyPolicy(object): pass # wont be called
        policy = DummyPolicy()
        config = self._makeOne(authorization_policy=policy,
                               authentication_policy=policy,
                               autocommit=True)
        config.add_view(view=view1)
        config.add_view(view=view1, renderer=null_renderer)
        view = self._getViewCallable(config)
        request = self._makeRequest(config)
        self.assertEqual(view(None, request), 'OK')
@@ -2185,17 +2264,19 @@
            raise AssertionError

    def test_derive_view_function(self):
        from pyramid.renderers import null_renderer
        def view(request):
            return 'OK'
        config = self._makeOne()
        result = config.derive_view(view)
        result = config.derive_view(view, renderer=null_renderer)
        self.assertFalse(result is view)
        self.assertEqual(result(None, None), 'OK')

    def test_derive_view_dottedname(self):
        from pyramid.renderers import null_renderer
        config = self._makeOne()
        result = config.derive_view(
            'pyramid.tests.test_config.dummy_view')
            'pyramid.tests.test_config.dummy_view', renderer=null_renderer)
        self.assertFalse(result is dummy_view)
        self.assertEqual(result(None, None), 'OK')

@@ -2288,18 +2369,21 @@
        self.assertEqual(config._ctx.info, 'abc')

    def test_add_static_here_no_utility_registered(self):
        from pyramid.renderers import null_renderer
        from zope.interface import Interface
        from pyramid.static import PackageURLParser
        from pyramid.interfaces import IView
        from pyramid.interfaces import IViewClassifier
        config = self._makeOne(autocommit=True)
        config.add_static_view('static', 'fixtures/static')
        config.add_static_view('static', 'fixtures/static',
                               renderer=null_renderer)
        request_type = self._getRouteRequestIface(config, 'static/')
        self._assertRoute(config, 'static/', 'static/*subpath')
        wrapped = config.registry.adapters.lookup(
            (IViewClassifier, request_type, Interface), IView, name='')
        request = self._makeRequest(config)
        self.assertEqual(wrapped(None, request).__class__, PackageURLParser)
        result = wrapped(None, request)
        self.assertEqual(result.__class__, PackageURLParser)

    def test_add_static_view_package_relative(self):
        from pyramid.interfaces import IStaticURLInfo
@@ -2332,12 +2416,13 @@
                         [('static', static_path, {})])

    def test_set_notfound_view(self):
        from pyramid.renderers import null_renderer
        from zope.interface import implementedBy
        from pyramid.interfaces import IRequest
        from pyramid.httpexceptions import HTTPNotFound
        config = self._makeOne(autocommit=True)
        view = lambda *arg: arg
        config.set_notfound_view(view)
        config.set_notfound_view(view, renderer=null_renderer)
        request = self._makeRequest(config)
        view = self._getViewCallable(config,
                                     ctx_iface=implementedBy(HTTPNotFound),
@@ -2346,12 +2431,13 @@
        self.assertEqual(result, (None, request))

    def test_set_notfound_view_request_has_context(self):
        from pyramid.renderers import null_renderer
        from zope.interface import implementedBy
        from pyramid.interfaces import IRequest
        from pyramid.httpexceptions import HTTPNotFound
        config = self._makeOne(autocommit=True)
        view = lambda *arg: arg
        config.set_notfound_view(view)
        config.set_notfound_view(view, renderer=null_renderer)
        request = self._makeRequest(config)
        request.context = 'abc'
        view = self._getViewCallable(config,
@@ -2381,12 +2467,13 @@
        self.assertTrue('div' in result.body)

    def test_set_forbidden_view(self):
        from pyramid.renderers import null_renderer
        from zope.interface import implementedBy
        from pyramid.interfaces import IRequest
        from pyramid.httpexceptions import HTTPForbidden
        config = self._makeOne(autocommit=True)
        view = lambda *arg: 'OK'
        config.set_forbidden_view(view)
        config.set_forbidden_view(view, renderer=null_renderer)
        request = self._makeRequest(config)
        view = self._getViewCallable(config,
                                     ctx_iface=implementedBy(HTTPForbidden),
@@ -2395,12 +2482,13 @@
        self.assertEqual(result, 'OK')

    def test_set_forbidden_view_request_has_context(self):
        from pyramid.renderers import null_renderer
        from zope.interface import implementedBy
        from pyramid.interfaces import IRequest
        from pyramid.httpexceptions import HTTPForbidden
        config = self._makeOne(autocommit=True)
        view = lambda *arg: arg
        config.set_forbidden_view(view)
        config.set_forbidden_view(view, renderer=null_renderer)
        request = self._makeRequest(config)
        request.context = 'abc'
        view = self._getViewCallable(config,
@@ -3125,13 +3213,14 @@
        self.assertEqual(registeredview.__name__, 'view3')

    def test_autocommit_no_conflicts(self):
        from pyramid.renderers import null_renderer
        config = self._makeOne(autocommit=True)
        def view1(request): pass
        def view2(request): pass
        def view3(request): pass
        config.add_view(view1)
        config.add_view(view2)
        config.add_view(view3)
        config.add_view(view1, renderer=null_renderer)
        config.add_view(view2, renderer=null_renderer)
        config.add_view(view3, renderer=null_renderer)
        config.commit()
        registeredview = self._getViewCallable(config)
        self.assertEqual(registeredview.__name__, 'view3')
@@ -3287,18 +3376,21 @@
                yield confinst[2]

    def test_add_route_with_view(self):
        from pyramid.renderers import null_renderer
        config = self._makeOne(autocommit=True)
        view = lambda *arg: 'OK'
        config.add_route('name', 'path', view=view)
        config.add_route('name', 'path', view=view, view_renderer=null_renderer)
        request_type = self._getRouteRequestIface(config, 'name')
        wrapper = self._getViewCallable(config, None, request_type)
        self.assertEqual(wrapper(None, None), 'OK')
        self._assertRoute(config, 'name', 'path')

    def test_add_route_with_view_context(self):
        from pyramid.renderers import null_renderer
        config = self._makeOne(autocommit=True)
        view = lambda *arg: 'OK'
        config.add_route('name', 'path', view=view, view_context=IDummy)
        config.add_route('name', 'path', view=view, view_context=IDummy,
                         view_renderer=null_renderer)
        request_type = self._getRouteRequestIface(config, 'name')
        wrapper = self._getViewCallable(config, IDummy, request_type)
        self.assertEqual(wrapper(None, None), 'OK')
@@ -3307,10 +3399,12 @@
        self.assertEqual(wrapper, None)

    def test_add_route_with_view_exception(self):
        from pyramid.renderers import null_renderer
        from zope.interface import implementedBy
        config = self._makeOne(autocommit=True)
        view = lambda *arg: 'OK'
        config.add_route('name', 'path', view=view, view_context=RuntimeError)
        config.add_route('name', 'path', view=view, view_context=RuntimeError,
                         view_renderer=null_renderer)
        request_type = self._getRouteRequestIface(config, 'name')
        wrapper = self._getViewCallable(
            config, ctx_iface=implementedBy(RuntimeError),
@@ -3323,9 +3417,11 @@
        self.assertEqual(wrapper, None)

    def test_add_route_with_view_for(self):
        from pyramid.renderers import null_renderer
        config = self._makeOne(autocommit=True)
        view = lambda *arg: 'OK'
        config.add_route('name', 'path', view=view, view_for=IDummy)
        config.add_route('name', 'path', view=view, view_for=IDummy,
                         view_renderer=null_renderer)
        request_type = self._getRouteRequestIface(config, 'name')
        wrapper = self._getViewCallable(config, IDummy, request_type)
        self.assertEqual(wrapper(None, None), 'OK')
@@ -3334,9 +3430,11 @@
        self.assertEqual(wrapper, None)

    def test_add_route_with_for_(self):
        from pyramid.renderers import null_renderer
        config = self._makeOne(autocommit=True)
        view = lambda *arg: 'OK'
        config.add_route('name', 'path', view=view, for_=IDummy)
        config.add_route('name', 'path', view=view, for_=IDummy,
                         view_renderer=null_renderer)
        request_type = self._getRouteRequestIface(config, 'name')
        wrapper = self._getViewCallable(config, IDummy, request_type)
        self.assertEqual(wrapper(None, None), 'OK')
@@ -3356,6 +3454,7 @@
        self.assertEqual(wrapper(None, None).body, 'Hello!')

    def test_add_route_with_view_attr(self):
        from pyramid.renderers import null_renderer
        config = self._makeOne(autocommit=True)
        self._registerRenderer(config)
        class View(object):
@@ -3363,7 +3462,8 @@
                pass
            def alt(self):
                return 'OK'
        config.add_route('name', 'path', view=View, view_attr='alt')
        config.add_route('name', 'path', view=View, view_attr='alt',
                         view_renderer=null_renderer)
        request_type = self._getRouteRequestIface(config, 'name')
        wrapper = self._getViewCallable(config, None, request_type)
        self._assertRoute(config, 'name', 'path')

 pyramid/tests/test_renderers.py

@@ -708,6 +708,39 @@
        self.assertEqual(cloned_helper.registry, 'registry2')
        self.assertFalse(helper is cloned_helper)

class TestNullRendererHelper(unittest.TestCase):
    def setUp(self):
        self.config = cleanUp()

    def tearDown(self):
        cleanUp()

    def _makeOne(self, *arg, **kw):
        from pyramid.renderers import NullRendererHelper
        return NullRendererHelper(*arg, **kw)

    def test_instance_conforms(self):
        from zope.interface.verify import verifyObject
        from pyramid.interfaces import IRendererInfo
        helper = self._makeOne()
        verifyObject(IRendererInfo, helper)

    def test_render_view(self):
        helper = self._makeOne()
        self.assertEqual(helper.render_view(None, True, None, None), True)

    def test_render(self):
        helper = self._makeOne()
        self.assertEqual(helper.render(True, None, None), True)

    def test_render_to_response(self):
        helper = self._makeOne()
        self.assertEqual(helper.render_to_response(True, None, None), True)

    def test_clone(self):
        helper = self._makeOne()
        self.assertTrue(helper.clone() is helper)

class Test_render(unittest.TestCase):
    def setUp(self):
        self.config = testing.setUp()