Changeset 5796 for main/waeup.sirp/trunk/src

Timestamp:

6 Mar 2011, 15:41:27 (14 years ago)

Author:

uli

Message:

Brush up the main waeup.sirp unit test layer. It now groks waeup.sirp
if necessary only and cleans up the environment afterwards
properly. Also display of warning messages (all the erraneous messages
about missing templates and the like) is disabled now when grokking
waeup.sirp via the finetuned layer.

File:

• main/waeup.sirp/trunk/src/waeup/sirp/testing.py (modified) (6 diffs)

main/waeup.sirp/trunk/src/waeup/sirp/testing.py

@@ -2 +2 @@
 """
 import os.path
+import warnings
 import grok
 import zope.component
@@ -7 +8 @@
 from zope.app.testing.functional import ZCMLLayer
 from zope.component import getGlobalSiteManager
+from zope.testing.cleanup import cleanUp
 
 ftesting_zcml = os.path.join(
@@ -12 +14 @@
 FunctionalLayer = ZCMLLayer(ftesting_zcml, __name__, 'FunctionalLayer',
                             allow_teardown=True)
-
-class WAeUPSIRPUnitTestLayer(object):
-    """A layer for doctests that groks `waeup.sirp`.
-    """
-    @classmethod
-    def setUp(self):
-        import grok
-        grok.testing.grok('waeup.sirp')
-
-    @classmethod
-    def tearDown(self):
-        pass
-
 
 def setUpZope(test=None):
@@ -57 +46 @@
     Returns ``True`` if grokking was done, ``False`` else.
 
+    .. The following samples should go into Sphinx docs directly....
+    
     Sample
     ******
+
+    Usage with plain Python testrunners
+    -----------------------------------
     
     Together with the :func:`setUpZope` and :func:`cleanUpZope`
     functions we then can do unittests with all components registered
-    like this::
+    and the event dispatcher in place like this::
 
       import unittest2 as unittest # Want Python 2.7 features
@@ -101 +95 @@
     won't work out of the box. The benefit is the faster test
     setup/teardown.
+
+    .. note:: This works only with the default Python testrunners.
+    
+         If you use the Zope testrunner (from :mod:`zope.testing`)
+         then you have to use appropriate layers like the
+         :class:`waeup.sirp.testing.WAeUPSIRPUnitTestLayer`.
+
+    Usage with :mod:`zope.testing` testrunners
+    ------------------------------------------
+
+    If you use the standard Zope testrunner, classmethods like
+    `setUpClass` are not executed. Instead you have to use a layer
+    like the one defined in this module.
+
+    .. seealso:: :class:`waeup.sirp.testing.WAeUPSIRPUnitTestLayer`
+    
     """
     gsm =  getGlobalSiteManager()
@@ -112 +122 @@
     warnings.simplefilter('default') # reenable warnings
     return True
+
+
+class WAeUPSIRPUnitTestLayer(object):
+    """A layer for tests that groks `waeup.sirp`.
+
+    A Zope test layer that registers all :mod:`waeup.sirp` components
+    before attached tests are run and cleans this registrations up
+    afterwards. Also basic (non-waeup.sirp) components like the event
+    dispatcher machinery are registered, set up and cleaned up.
+
+    This layer does not provide a complete ZODB setup (and is
+    therefore much faster than complete functional setups) but does
+    only the registrations (which also takes some time, so running
+    this layer is slower than test cases that need none or only a
+    few registrations).
+
+    The registrations are done for all tests the layer is attached to
+    once before all these tests are run (and torn down once
+    afterwards).
+    
+    To make use of this layer, you have to write a
+    :mod:`unittest.TestCase` class that provides an attribute called
+    ``layer`` with this class as value like this::
+
+      import unittest
+      from waeup.sirp.testing import WAeUPSIRPUnitTestLayer
+      
+      class MyTestCase(unittest.TestCase):
+
+          layer = WAeUPSIRPUnitTestLayer
+
+          # per-test setups and real tests go here...
+          def test_foo(self):
+              self.assertEqual(1, 1)
+              return
+
+    """
+    @classmethod
+    def setUp(cls):
+        grokked = maybe_grok()
+        if grokked:
+            setUpZope(None)
+        return
+
+    @classmethod
+    def tearDown(cls):
+        cleanUpZope(None)