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##############################################################################
#
# Copyright (c) 2004-2009 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Doc tests for the pagetemplate's 'engine' module
"""
import doctest
import re
import unittest
import zope.pagetemplate.engine
from zope.testing.renormalizing import RENormalizing
from zope.component.testing import PlacelessSetup
class EngineTests(PlacelessSetup,
unittest.TestCase):
def _makeOne(self):
return zope.pagetemplate.engine._Engine()
def test_function_namespaces_return_secured_proxies(self):
# See https://bugs.launchpad.net/zope3/+bug/98323
from zope.proxy import isProxy
engine = self._makeOne()
namespace = engine.getFunctionNamespace('test')
self.assertTrue(isProxy(namespace))
def test_getContext_namespace(self):
engine = self._makeOne()
ctx = engine.getContext({'a': 1}, b=2, request=3, context=4)
self.assertEqual(ctx.getValue('a'), 1)
self.assertEqual(ctx.getValue('b'), 2)
self.assertEqual(ctx.getValue('request'), 3)
self.assertEqual(ctx.getValue('context'), 4)
class DummyEngine(object):
def getTypes(self):
return {}
class DummyContext(object):
_engine = DummyEngine()
def __init__(self, **kw):
self.vars = kw
class ZopePythonExprTests(unittest.TestCase):
def test_simple(self):
from zope.pagetemplate.engine import ZopePythonExpr
expr = ZopePythonExpr('python', 'max(a,b)', DummyEngine())
self.assertEqual(expr(DummyContext(a=1, b=2)), 2)
def test_allowed_module_name(self):
from zope.pagetemplate.engine import ZopePythonExpr
expr = ZopePythonExpr('python', '__import__("sys").__name__',
DummyEngine())
self.assertEqual(expr(DummyContext()), 'sys')
@unittest.skipUnless(zope.pagetemplate.engine.HAVE_UNTRUSTED,
"Needs untrusted")
def test_forbidden_module_name(self):
from zope.pagetemplate.engine import ZopePythonExpr
from zope.security.interfaces import Forbidden
expr = ZopePythonExpr('python', '__import__("sys").exit',
DummyEngine())
self.assertRaises(Forbidden, expr, DummyContext())
@unittest.skipUnless(zope.pagetemplate.engine.HAVE_UNTRUSTED,
"Needs untrusted")
def test_disallowed_builtin(self):
from zope.pagetemplate.engine import ZopePythonExpr
expr = ZopePythonExpr('python', 'open("x", "w")', DummyEngine())
self.assertRaises(NameError, expr, DummyContext())
class TestZopeContext(PlacelessSetup,
unittest.TestCase):
def _makeOne(self):
return zope.pagetemplate.engine.ZopeContext(None, {})
def test_translate(self):
ctx = self._makeOne()
self.assertEqual(ctx.translate('msgid'), 'msgid')
def test_evaluate_error(self):
ctx = self._makeOne()
with self.assertRaisesRegexp(zope.pagetemplate.engine.InlineCodeError,
"Inline Code Evaluation is deactivated"):
ctx.evaluateCode('lang', 'code')
def test_evaluate_interpreter_not_importable(self):
ctx = self._makeOne()
ctx.evaluateInlineCode = True
with self.assertRaises(ImportError):
ctx.evaluateCode('lang', 'code')
def test_evaluate_interpreter_not_found(self):
get = zope.pagetemplate.engine._get_iinterpreter
from zope import interface
class IInterpreter(interface.Interface):
pass
def mock_get():
return IInterpreter
ctx = self._makeOne()
ctx.evaluateInlineCode = True
zope.pagetemplate.engine._get_iinterpreter = mock_get
try:
with self.assertRaisesRegexp(zope.pagetemplate.engine.InlineCodeError,
"No interpreter named"):
ctx.evaluateCode('lang', 'code')
finally:
zope.pagetemplate.engine._get_iinterpreter = get
def test_evaluate_interpreter_found(self):
get = zope.pagetemplate.engine._get_iinterpreter
from zope import interface
from zope import component
class IInterpreter(interface.Interface):
pass
def mock_get():
return IInterpreter
@interface.implementer(IInterpreter)
class Interpreter(object):
def evaluateRawCode(self, code, globs):
globs['new'] = code
return 42
component.provideUtility(Interpreter(), name='lang')
ctx = self._makeOne()
ctx.evaluateInlineCode = True
zope.pagetemplate.engine._get_iinterpreter = mock_get
try:
result = ctx.evaluateCode('lang', 'code')
finally:
zope.pagetemplate.engine._get_iinterpreter = get
self.assertEqual(result, 42)
self.assertEqual('code', ctx.getValue('new'))
class TestTraversableModuleImporter(unittest.TestCase):
def test_traverse_fails(self):
from zope.traversing.interfaces import TraversalError
tmi = zope.pagetemplate.engine.TraversableModuleImporter()
with self.assertRaises(TraversalError):
tmi.traverse('zope.cannot exist', ())
with self.assertRaises(TraversalError):
tmi.traverse('zope.pagetemplate.engine.DNE', ())
with self.assertRaises(TraversalError):
tmi.traverse('pickle.no_sub_module', ())
class TestAppPT(unittest.TestCase):
def test_apppt_engine(self):
self.assertIs(zope.pagetemplate.engine.AppPT().pt_getEngine(),
zope.pagetemplate.engine.Engine)
def test_trustedapppt_engine(self):
self.assertIs(zope.pagetemplate.engine.TrustedAppPT().pt_getEngine(),
zope.pagetemplate.engine.TrustedEngine)
def test_suite():
checker = RENormalizing([
# Python 3 includes module name in exceptions
(re.compile(r"zope.security.interfaces.ForbiddenAttribute"),
"ForbiddenAttribute"),
(re.compile(r"<class 'zope.security._proxy._Proxy'>"),
"<type 'zope.security._proxy._Proxy'>"),
(re.compile(r"<class 'list'>"), "<type 'list'>"),
# PyPy/pure-Python implementation
(re.compile(r"<class 'zope.security.proxy.ProxyPy'>"),
"<type 'zope.security._proxy._Proxy'>"),
])
suite = unittest.defaultTestLoader.loadTestsFromName(__name__)
suite.addTest(doctest.DocTestSuite('zope.pagetemplate.engine',
checker=checker))
return suite
if __name__ == '__main__':
unittest.main(defaultTest='test_suite')
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