/usr/share/pyshared/slapos/tests/interface.py is in slapos-client 0.35.1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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#
# Copyright (c) 2010 Vifib SARL and Contributors. All Rights Reserved.
#
# WARNING: This program as such is intended to be used by professional
# programmers who take the whole responsibility of assessing all potential
# consequences resulting from its eventual inadequacies and bugs
# End users who are looking for a ready-to-use solution with commercial
# guarantees and support are strongly adviced to contract a Free Software
# Service Company
#
# 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 3
# 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.
#
##############################################################################
import unittest
from zope.interface.verify import verifyClass
import zope.interface
import types
from slapos import slap
def getOnlyImplementationAssertionMethod(klass, method_list):
"""Returns method which verifies if a klass only implements its interfaces"""
def testMethod(self):
implemented_method_list = [x for x in dir(klass) \
if ((not x.startswith('_')) and callable(getattr(klass, x)))]
for interface_method in method_list:
if interface_method in implemented_method_list:
implemented_method_list.remove(interface_method)
if implemented_method_list:
raise AssertionError("Unexpected methods %s" % implemented_method_list)
return testMethod
def getImplementationAssertionMethod(klass, interface):
"""Returns method which verifies if interface is properly implemented by klass"""
def testMethod(self):
verifyClass(interface, klass)
return testMethod
def getDeclarationAssertionMethod(klass):
"""Returns method which verifies if klass is declaring interface"""
def testMethod(self):
self.assertNotEqual(0, len(list(zope.interface.implementedBy(klass))))
return testMethod
def generateTestMethodListOnClass(klass, module):
"""Generate test method on klass"""
for class_id in dir(module):
implementing_class = getattr(module, class_id)
if type(implementing_class) not in (types.ClassType, types.TypeType):
continue
# add methods to assert that publicly available classes are defining
# interfaces
method_name = 'test_%s_declares_interface' % (class_id,)
setattr(klass, method_name, getDeclarationAssertionMethod(
implementing_class))
implemented_method_list = []
for interface in list(zope.interface.implementedBy(implementing_class)):
# for each interface which class declares add a method which verify
# implementation
method_name = 'test_%s_implements_%s' % (class_id,
interface.__identifier__)
setattr(klass, method_name, getImplementationAssertionMethod(
implementing_class, interface))
for interface_klass in interface.__iro__:
implemented_method_list.extend(interface_klass.names())
# for each interface which class declares, check that no other method are
# available
method_name = 'test_%s_only_implements' % class_id
setattr(klass, method_name, getOnlyImplementationAssertionMethod(
implementing_class,
implemented_method_list))
class TestInterface(unittest.TestCase):
"""Tests all publicly available classes of slap
Classes are checked *if* they implement interface and if the implementation
is correct.
"""
# add methods to test class
generateTestMethodListOnClass(TestInterface, slap)
if __name__ == '__main__':
unittest.main()
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