- ``repoze.bfg.testing.DummyModel`` now accepts a new constructor

  keyword argument: ``__provides__``.  If this constructor argument is
  provided, it should be an interface or a tuple of interfaces.  The
  resulting model will then provide these interfaces (they will be
  attached to the constructed model via
  ``zope.interface.alsoProvides``).

4 files changed, 33 insertions, 2 deletions

diff --git a/CHANGES.txt b/CHANGES.txt
index 641da1317..db7415a2f 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,3 +1,16 @@
+Next release
+============
+
+Features
+--------
+
+- ``repoze.bfg.testing.DummyModel`` now accepts a new constructor
+  keyword argument: ``__provides__``.  If this constructor argument is
+  provided, it should be an interface or a tuple of interfaces.  The
+  resulting model will then provide these interfaces (they will be
+  attached to the constructed model via
+  ``zope.interface.alsoProvides``).
+
 1.2a3 (2009-01-02)
 ==================
 
diff --git a/docs/whatsnew-1.2.rst b/docs/whatsnew-1.2.rst
index 603b2f087..862bef375 100644
--- a/docs/whatsnew-1.2.rst
+++ b/docs/whatsnew-1.2.rst
@@ -83,6 +83,13 @@ Minor Miscellaneous Feature Additions
   function to be the global ZCA registry (the result of
   ``zope.component.getGlobalSiteManager``) once again.
 
+- ``repoze.bfg.testing.DummyModel`` now accepts a new constructor
+  keyword argument: ``__provides__``.  If this constructor argument is
+  provided, it should be an interface or a tuple of interfaces.  The
+  resulting model will then provide these interfaces (they will be
+  attached to the constructed model via
+  ``zope.interface.alsoProvides``).
+
 Backwards Incompatibilites
 --------------------------
 
diff --git a/repoze/bfg/testing.py b/repoze/bfg/testing.py
index 9638fc21c..127f54283 100644
--- a/repoze/bfg/testing.py
+++ b/repoze/bfg/testing.py
@@ -8,6 +8,7 @@ from zope.deprecation import deprecated
 
 from zope.interface import implements
 from zope.interface import Interface
+from zope.interface import alsoProvides
 
 from repoze.bfg.interfaces import IAuthenticationPolicy
 from repoze.bfg.interfaces import IAuthorizationPolicy
@@ -387,13 +388,19 @@ class DummyModel:
     to the constructor will be used as the ``__name__`` attribute of
     the model.  the value of ``parent`` will be used as the
     ``__parent__`` attribute of the model. """
-    def __init__(self, __name__=None, __parent__=None, **kw):
+    def __init__(self, __name__=None, __parent__=None, __provides__=None,
+                 **kw):
         """ The he model's ``__name__`` attribute will be set to the
         value of ``__name__``, and the model's ``__parent__``
-        attribute will be set to the value of ``__parent__``.  Any
+        attribute will be set to the value of ``__parent__``.  If
+        ``__provides__`` is specified, it should be an interface
+        object or tuple of interface objects that will be attached to
+        the resulting model via ``zope.interface.alsoProvides``. Any
         extra keywords will be set as direct attributes of the model."""
         self.__name__ = __name__
         self.__parent__ = __parent__
+        if __provides__ is not None:
+            alsoProvides(self, __provides__)
         self.kw = kw
         self.__dict__.update(**kw)
         self.subs = {}
diff --git a/repoze/bfg/tests/test_testing.py b/repoze/bfg/tests/test_testing.py
index 7c8b7ad30..72ecd96b0 100644
--- a/repoze/bfg/tests/test_testing.py
+++ b/repoze/bfg/tests/test_testing.py
@@ -402,6 +402,10 @@ class TestDummyModel(unittest.TestCase):
         model = self._makeOne()
         self.assertEqual(model.__nonzero__(), True)
 
+    def test_ctor_with__provides__(self):
+        model = self._makeOne(__provides__=IDummy)
+        self.failUnless(IDummy.providedBy(model))
+
 class TestDummyRequest(unittest.TestCase):
     def _getTargetClass(self):
         from repoze.bfg.testing import DummyRequest