Index: /main/waeup.sirp/trunk/src/waeup/sirp/payments/__init__.py
===================================================================
--- /main/waeup.sirp/trunk/src/waeup/sirp/payments/__init__.py	(revision 6861)
+++ /main/waeup.sirp/trunk/src/waeup/sirp/payments/__init__.py	(revision 6861)
@@ -0,0 +1,8 @@
+"""This package contains everything regarding payments.
+"""
+# Make this a package.
+from waeup.sirp.payments.container import PaymentsContainer
+
+__all__ = [
+    'PaymentsContainer',
+    ]
Index: /main/waeup.sirp/trunk/src/waeup/sirp/payments/container.py
===================================================================
--- /main/waeup.sirp/trunk/src/waeup/sirp/payments/container.py	(revision 6861)
+++ /main/waeup.sirp/trunk/src/waeup/sirp/payments/container.py	(revision 6861)
@@ -0,0 +1,40 @@
+## Copyright (C) 2011 Uli Fouquet & Henrik Bettermann
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+##
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+##
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+##
+"""
+Containers which contain payment objects.
+"""
+import grok
+from grok import index
+from waeup.sirp.payments.interfaces import IPaymentsContainer
+from waeup.sirp.utils.helpers import attrs_to_fields
+
+class PaymentsContainer(grok.Container):
+    """This is a container for all kind of payments.
+    """
+    grok.implements(IPaymentsContainer)
+    grok.provides(IPaymentsContainer)
+
+    def __init__(self):
+        super(PaymentsContainer, self).__init__()
+        return
+
+    def archive(self, id=None):
+        raise NotImplementedError()
+
+    def clear(self, id=None, archive=True):
+        raise NotImplementedError()
+
+PaymentsContainer = attrs_to_fields(PaymentsContainer)
Index: /main/waeup.sirp/trunk/src/waeup/sirp/payments/interfaces.py
===================================================================
--- /main/waeup.sirp/trunk/src/waeup/sirp/payments/interfaces.py	(revision 6861)
+++ /main/waeup.sirp/trunk/src/waeup/sirp/payments/interfaces.py	(revision 6861)
@@ -0,0 +1,8 @@
+##
+## interfaces.py
+from waeup.sirp.interfaces import IWAeUPObject
+
+class IPaymentsContainer(IWAeUPObject):
+    """A container for all kind of payment objects.
+
+    """
Index: /main/waeup.sirp/trunk/src/waeup/sirp/payments/tests/__init__.py
===================================================================
--- /main/waeup.sirp/trunk/src/waeup/sirp/payments/tests/__init__.py	(revision 6861)
+++ /main/waeup.sirp/trunk/src/waeup/sirp/payments/tests/__init__.py	(revision 6861)
@@ -0,0 +1,1 @@
+# Make this a package.
Index: /main/waeup.sirp/trunk/src/waeup/sirp/payments/tests/test_container.py
===================================================================
--- /main/waeup.sirp/trunk/src/waeup/sirp/payments/tests/test_container.py	(revision 6861)
+++ /main/waeup.sirp/trunk/src/waeup/sirp/payments/tests/test_container.py	(revision 6861)
@@ -0,0 +1,77 @@
+## Copyright (C) 2011 Uli Fouquet & Henrik Bettermann
+## This program is free software; you can redistribute it and/or modify
+## it under the terms of the GNU General Public License as published by
+## the Free Software Foundation; either version 2 of the License, or
+## (at your option) any later version.
+## 
+## This program is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU General Public License for more details.
+## 
+## You should have received a copy of the GNU General Public License
+## along with this program; if not, write to the Free Software
+## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+##
+"""
+Tests for payment containers.
+"""
+import unittest
+import tempfile
+import shutil
+from zope.interface.verify import verifyClass, verifyObject
+from zope.component.interfaces import IFactory
+from zope.component.hooks import setSite, clearSite
+from waeup.sirp.app import University
+from waeup.sirp.payments.interfaces import (
+    IPaymentsContainer,
+    )
+from waeup.sirp.payments.container import (
+    PaymentsContainer,
+    )
+from waeup.sirp.testing import (
+    FunctionalLayer, FunctionalTestCase, get_all_loggers, remove_new_loggers,
+    remove_logger)
+
+class PaymentsContainerTestCase(FunctionalTestCase):
+
+    layer = FunctionalLayer
+
+    def setUp(self):
+        remove_logger('waeup.sirp.app.students')
+        super(PaymentsContainerTestCase, self).setUp()
+        # Setup a sample site for each test
+        # Prepopulate the ZODB...
+        app = University()
+        self.getRootFolder()['app'] = app
+        self.app = self.getRootFolder()['app']
+        setSite(self.app)
+        self.dc_root = tempfile.mkdtemp()
+        app['datacenter'].setStoragePath(self.dc_root)
+        return
+
+    def tearDown(self):
+        super(PaymentsContainerTestCase, self).tearDown()
+        clearSite()
+        shutil.rmtree(self.dc_root)
+        return
+
+    def test_interfaces(self):
+        # Make sure the correct interfaces are implemented.
+        self.assertTrue(
+            verifyClass(
+                IPaymentsContainer, PaymentsContainer)
+            )
+        self.assertTrue(
+            verifyObject(
+                IPaymentsContainer, PaymentsContainer())
+            )
+        return
+
+    def test_base(self):
+        # We cannot call the fundamental methods of a base in that case
+        container = PaymentsContainer()
+        self.assertRaises(
+            NotImplementedError, container.archive)
+        self.assertRaises(
+            NotImplementedError, container.clear)
