From 8cc399ae9291f34166bc8a8fc1983a9941b57e97 Mon Sep 17 00:00:00 2001
From: Chris McDonough <chrism@agendaless.com>
Date: Sun, 25 Apr 2010 21:53:04 +0000
Subject: - Add a new method of the Configurator named ``derive_view`` which
 can   be used to generate a BFG view callable from a user-supplied  
 function, instance, or class. This useful for external framework and   plugin
 authors wishing to wrap callables supplied by their users   which follow the
 same calling conventions and response conventions   as objects that can be
 supplied directly to BFG as a view callable.   See the ``derive_view`` method
 in the   ``repoze.bfg.configuration.Configurator`` docs.

---
 repoze/bfg/tests/test_configuration.py | 42 ++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

(limited to 'repoze/bfg/tests')

diff --git a/repoze/bfg/tests/test_configuration.py b/repoze/bfg/tests/test_configuration.py
index fa18b75cb..0a443720f 100644
--- a/repoze/bfg/tests/test_configuration.py
+++ b/repoze/bfg/tests/test_configuration.py
@@ -1879,6 +1879,48 @@ class ConfiguratorTests(unittest.TestCase):
         result = config._renderer_from_name(None)
         self.assertEqual(result, 'OK')
 
+    def test_derive_view_function(self):
+        def view(request):
+            return 'OK'
+        config = self._makeOne()
+        result = config.derive_view(view)
+        self.failIf(result is view)
+        self.assertEqual(result(None, None), 'OK')
+
+    def test_derive_view_with_renderer(self):
+        def view(request):
+            return 'OK'
+        config = self._makeOne()
+        class moo(object):
+            def __init__(self, *arg, **kw):
+                pass
+            def __call__(self, *arg, **kw):
+                return 'moo'
+        config.add_renderer('moo', moo)
+        result = config.derive_view(view, renderer='moo')
+        self.failIf(result is view)
+        self.assertEqual(result(None, None).body, 'moo')
+
+    def test_derive_view_class_without_attr(self):
+        class View(object):
+            def __init__(self, request):
+                pass
+            def __call__(self):
+                return 'OK'
+        config = self._makeOne()
+        result = config.derive_view(View)
+        self.assertEqual(result(None, None), 'OK')
+
+    def test_derive_view_class_with_attr(self):
+        class View(object):
+            def __init__(self, request):
+                pass
+            def another(self):
+                return 'OK'
+        config = self._makeOne()
+        result = config.derive_view(View, attr='another')
+        self.assertEqual(result(None, None), 'OK')
+
     def test__derive_view_as_function_context_and_request(self):
         def view(context, request):
             return 'OK'
-- 
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