Changeset 6266

Timestamp:

2 Jun 2011, 10:51:24 (13 years ago)

Author:

uli

Message:

Show that the converter can create new instances when given a factory
name, this way really turning a set of strings into new objects as we
expect it from an importer in 'create' mode.

File:

• main/waeup.sirp/trunk/src/waeup/sirp/utils/tests/test_converters.py (modified) (5 diffs)

main/waeup.sirp/trunk/src/waeup/sirp/utils/tests/test_converters.py

@@ -28 +28 @@
 import tempfile
 import unittest
+from zope import schema
 from zope.app.testing.functional import FunctionalTestCase
+from zope.component import provideUtility
+from zope.component.factory import Factory
 from zope.component.hooks import setSite, clearSite
+from zope.component.interfaces import IFactory
 from zope.formlib import form
+from zope.interface import (
+    Interface, implements, invariant, Invalid, implementedBy)
 from zope.interface.verify import verifyClass, verifyObject
 
@@ -36 +42 @@
 from waeup.sirp.testing import FunctionalLayer, doctestsuite_for_module
 from waeup.sirp.utils.converters import IObjectConverter
-
-from zope import schema
-from zope.interface import Interface, implements, invariant, Invalid
 from waeup.sirp.utils.helpers import attrs_to_fields
 
 class IContact(Interface):
+    """Sample interface for sample content type used here in tests.
+    """
     name = schema.TextLine(
         title = u'Name',
@@ -70 +75 @@
 
 class Contact(object):
+    """Sample content type.
+    """
     implements(IContact)
-    name = None
-    age = None
 Contact = attrs_to_fields(Contact)
 
 form_fields_select = form.Fields(IContact).select('name', 'vip')
 form_fields_omit = form.Fields(IContact).omit('name', 'vip')
+
+class ContactFactory(object):
+    """A factory for faculty containers.
+    """
+    implements(IContact)
+
+    def __call__(self, *args, **kw):
+        return Faculty()
+
+    def getInterfaces(self):
+        return implementedBy(Faculty)
 
 class ConverterTests(FunctionalTestCase):
@@ -95 +111 @@
 
         self.workdir = tempfile.mkdtemp()
+
+        # Create a factory for contacts and register it as global utility
+        factory = Factory(Contact)
+        provideUtility(factory, IFactory, 'contact')
         return
 
@@ -220 +240 @@
         self.assertEqual(contact.age, 99)
         self.assertEqual(contact.vip, False)
+        return
+
+    def test_factory(self):
+        # We can use factories to create a new object
+        #
+        # This way we turn a dict of strings and some string denoting
+        # the kind of object to be created (factory name) into a real object.
+        converter = IObjectConverter(IContact) # a converter to IContact
+        # pass string ``contact`` instead of a real object
+        err, inv_err, contact = converter.applyRowData(
+            dict(name='Gabi'), 'contact')
+        # we get an object...
+        assert isinstance(contact, Contact)
+        # ...with the values from the dict set.
+        self.assertEqual(contact.name, 'Gabi')
         return