# -*- coding: utf-8 -*-
import clr
import time
import types
import unittest
import warnings
from fnmatch import fnmatch
from _compat import ClassType, PY2, PY3, range
from utils import is_clr_class, is_clr_module, is_clr_root_module
# testImplicitAssemblyLoad() passes on deprecation warning; perfect! #
# clr.AddReference('System.Windows.Forms')
class ModuleTests(unittest.TestCase):
"""Test CLR modules and the CLR import hook."""
def test_import_hook_works(self):
"""Test that the import hook works correctly both using the
included runtime and an external runtime. This must be
the first test run in the unit tests!"""
from System import String
def test_import_clr(self):
import clr
self.assertTrue(is_clr_root_module(clr))
def test_version_clr(self):
import clr
self.assertTrue(clr.__version__ >= "2.2.0")
def test_preload_var(self):
import clr
self.assertTrue(clr.getPreload() is False, clr.getPreload())
clr.setPreload(False)
self.assertTrue(clr.getPreload() is False, clr.getPreload())
try:
clr.setPreload(True)
self.assertTrue(clr.getPreload() is True, clr.getPreload())
clr.setPreload(0)
self.assertTrue(clr.getPreload() is False, clr.getPreload())
clr.setPreload(1)
self.assertTrue(clr.getPreload() is True, clr.getPreload())
import System.Configuration
content = dir(System.Configuration)
self.assertTrue(len(content) > 10, content)
finally:
clr.setPreload(False)
def test_module_interface(self):
"""Test the interface exposed by CLR module objects."""
import System
self.assertEquals(type(System.__dict__), type({}))
self.assertEquals(System.__name__, 'System')
# the filename can be any module from the System namespace
# (eg System.Data.dll or System.dll, but also mscorlib.dll)
system_file = System.__file__
self.assertTrue(fnmatch(system_file, "*System*.dll") or fnmatch(system_file, "*mscorlib.dll"),
"unexpected System.__file__: " + system_file)
self.assertTrue(System.__doc__.startswith("Namespace containing types from the following assemblies:"))
self.assertTrue(is_clr_class(System.String))
self.assertTrue(is_clr_class(System.Int32))
def test_simple_import(self):
"""Test simple import."""
import System
self.assertTrue(is_clr_module(System))
self.assertTrue(System.__name__ == 'System')
import sys
self.assertTrue(isinstance(sys, types.ModuleType))
self.assertTrue(sys.__name__ == 'sys')
if PY3:
import http.client as httplib
self.assertTrue(isinstance(httplib, types.ModuleType))
self.assertTrue(httplib.__name__ == 'http.client')
elif PY2:
import httplib
self.assertTrue(isinstance(httplib, types.ModuleType))
self.assertTrue(httplib.__name__ == 'httplib')
def test_simple_import_with_alias(self):
"""Test simple import with aliasing."""
import System as mySystem
self.assertTrue(is_clr_module(mySystem))
self.assertTrue(mySystem.__name__ == 'System')
import sys as mySys
self.assertTrue(isinstance(mySys, types.ModuleType))
self.assertTrue(mySys.__name__ == 'sys')
if PY3:
import http.client as myHttplib
self.assertTrue(isinstance(myHttplib, types.ModuleType))
self.assertTrue(myHttplib.__name__ == 'http.client')
elif PY2:
import httplib as myHttplib
self.assertTrue(isinstance(myHttplib, types.ModuleType))
self.assertTrue(myHttplib.__name__ == 'httplib')
def test_dotted_name_import(self):
"""Test dotted-name import."""
import System.Reflection
self.assertTrue(is_clr_module(System.Reflection))
self.assertTrue(System.Reflection.__name__ == 'System.Reflection')
import xml.dom
self.assertTrue(isinstance(xml.dom, types.ModuleType))
self.assertTrue(xml.dom.__name__ == 'xml.dom')
def test_multiple_dotted_name_import(self):
"""Test an import bug with multiple dotted imports."""
import System.Data
self.assertTrue(is_clr_module(System.Data))
self.assertTrue(System.Data.__name__ == 'System.Data')
import System.Data
self.assertTrue(is_clr_module(System.Data))
self.assertTrue(System.Data.__name__ == 'System.Data')
def test_dotted_name_import_with_alias(self):
"""Test dotted-name import with aliasing."""
import System.Reflection as SysRef
self.assertTrue(is_clr_module(SysRef))
self.assertTrue(SysRef.__name__ == 'System.Reflection')
import xml.dom as myDom
self.assertTrue(isinstance(myDom, types.ModuleType))
self.assertTrue(myDom.__name__ == 'xml.dom')
def test_simple_import_from(self):
"""Test simple 'import from'."""
from System import Reflection
self.assertTrue(is_clr_module(Reflection))
self.assertTrue(Reflection.__name__ == 'System.Reflection')
from xml import dom
self.assertTrue(isinstance(dom, types.ModuleType))
self.assertTrue(dom.__name__ == 'xml.dom')
def test_simple_import_from_with_alias(self):
"""Test simple 'import from' with aliasing."""
from System import Collections as Coll
self.assertTrue(is_clr_module(Coll))
self.assertTrue(Coll.__name__ == 'System.Collections')
from xml import dom as myDom
self.assertTrue(isinstance(myDom, types.ModuleType))
self.assertTrue(myDom.__name__ == 'xml.dom')
def test_dotted_name_import_from(self):
"""Test dotted-name 'import from'."""
from System.Collections import Specialized
self.assertTrue(is_clr_module(Specialized))
self.assertTrue(
Specialized.__name__ == 'System.Collections.Specialized')
from System.Collections.Specialized import StringCollection
self.assertTrue(is_clr_class(StringCollection))
self.assertTrue(StringCollection.__name__ == 'StringCollection')
from xml.dom import pulldom
self.assertTrue(isinstance(pulldom, types.ModuleType))
self.assertTrue(pulldom.__name__ == 'xml.dom.pulldom')
from xml.dom.pulldom import PullDOM
self.assertTrue(isinstance(PullDOM, ClassType))
self.assertTrue(PullDOM.__name__ == 'PullDOM')
def test_dotted_name_import_from_with_alias(self):
"""Test dotted-name 'import from' with aliasing."""
from System.Collections import Specialized as Spec
self.assertTrue(is_clr_module(Spec))
self.assertTrue(Spec.__name__ == 'System.Collections.Specialized')
from System.Collections.Specialized import StringCollection as SC
self.assertTrue(is_clr_class(SC))
self.assertTrue(SC.__name__ == 'StringCollection')
from xml.dom import pulldom as myPulldom
self.assertTrue(isinstance(myPulldom, types.ModuleType))
self.assertTrue(myPulldom.__name__ == 'xml.dom.pulldom')
from xml.dom.pulldom import PullDOM as myPullDOM
self.assertTrue(isinstance(myPullDOM, ClassType))
self.assertTrue(myPullDOM.__name__ == 'PullDOM')
def test_from_module_import_star(self):
"""Test from module import * behavior."""
count = len(locals().keys())
m = __import__('System.Xml', globals(), locals(), ['*'])
self.assertTrue(m.__name__ == 'System.Xml')
self.assertTrue(is_clr_module(m))
self.assertTrue(len(locals().keys()) > count + 1)
def test_implicit_assembly_load(self):
"""Test implicit assembly loading via import."""
with warnings.catch_warnings(record=True) as w:
warnings.simplefilter("always")
# should trigger a DeprecationWarning as Microsoft.Build hasn't
# been added as a reference yet (and should exist for mono)
import Microsoft.Build
self.assertEqual(len(w), 1)
self.assertTrue(isinstance(w[0].message, DeprecationWarning))
with warnings.catch_warnings(record=True) as w:
clr.AddReference("System.Windows.Forms")
import System.Windows.Forms as Forms
self.assertTrue(is_clr_module(Forms))
self.assertTrue(Forms.__name__ == 'System.Windows.Forms')
from System.Windows.Forms import Form
self.assertTrue(is_clr_class(Form))
self.assertTrue(Form.__name__ == 'Form')
self.assertEqual(len(w), 0)
def test_explicit_assembly_load(self):
"""Test explicit assembly loading using standard CLR tools."""
from System.Reflection import Assembly
import System, sys
assembly = Assembly.LoadWithPartialName('System.Data')
self.assertTrue(assembly is not None)
import System.Data
self.assertTrue('System.Data' in sys.modules)
assembly = Assembly.LoadWithPartialName('SpamSpamSpamSpamEggsAndSpam')
self.assertTrue(assembly is None)
def test_implicit_load_already_valid_namespace(self):
"""Test implicit assembly load over an already valid namespace."""
# In this case, the mscorlib assembly (loaded by default) defines
# a number of types in the System namespace. There is also a System
# assembly, which is _not_ loaded by default, which also contains
# types in the System namespace. The desired behavior is for the
# Python runtime to "do the right thing", allowing types from both
# assemblies to be found in the System module implicitly.
import System
self.assertTrue(is_clr_class(System.UriBuilder))
def test_import_non_existant_module(self):
"""Test import failure for a non-existent module."""
with self.assertRaises(ImportError):
import System.SpamSpamSpam
def test_lookup_no_namespace_type(self):
"""Test lookup of types without a qualified namespace."""
import Python.Test
import clr
self.assertTrue(is_clr_class(clr.NoNamespaceType))
def test_module_lookup_recursion(self):
"""Test for recursive lookup handling."""
with self.assertRaises(ImportError):
from System import System
with self.assertRaises(AttributeError):
import System
_ = System.System
def test_module_get_attr(self):
"""Test module getattr behavior."""
import System
int_type = System.Int32
self.assertTrue(is_clr_class(int_type))
module = System.Xml
self.assertTrue(is_clr_module(module))
with self.assertRaises(AttributeError):
_ = System.Spam
with self.assertRaises(TypeError):
_ = getattr(System, 1)
def test_module_attr_abuse(self):
"""Test handling of attempts to set module attributes."""
# It would be safer to use a dict-proxy as the __dict__ for CLR
# modules, but as of Python 2.3 some parts of the CPython runtime
# like dir() will fail if a module dict is not a real dictionary.
def test():
import System
System.__dict__['foo'] = 0
return 1
self.assertTrue(test())
def test_module_type_abuse(self):
"""Test handling of attempts to break the module type."""
import System
mtype = type(System)
with self.assertRaises(TypeError):
mtype.__getattribute__(0, 'spam')
with self.assertRaises(TypeError):
mtype.__setattr__(0, 'spam', 1)
with self.assertRaises(TypeError):
mtype.__repr__(0)
def test_clr_list_assemblies(self):
from clr import ListAssemblies
verbose = list(ListAssemblies(True))
short = list(ListAssemblies(False))
self.assertTrue(u'mscorlib' in short)
self.assertTrue(u'System' in short)
self.assertTrue(u'Culture=' in verbose[0])
self.assertTrue(u'Version=' in verbose[0])
def test_clr_add_reference(self):
from clr import AddReference
from System.IO import FileNotFoundException
for name in ("System", "Python.Runtime"):
assy = AddReference(name)
assy_name = assy.GetName().Name
self.assertEqual(assy_name, name)
with self.assertRaises(FileNotFoundException):
AddReference("somethingtotallysilly")
def test_assembly_load_thread_safety(self):
from Python.Test import ModuleTest
# spin up .NET thread which loads assemblies and triggers AppDomain.AssemblyLoad event
ModuleTest.RunThreads()
time.sleep(1e-5)
for _ in range(1, 100):
# call import clr, which in AssemblyManager.GetNames iterates through the loaded types
import clr
# import some .NET types
from System import DateTime
from System import Guid
from System.Collections.Generic import Dictionary
_ = Dictionary[Guid, DateTime]()
ModuleTest.JoinThreads()
def test_suite():
return unittest.makeSuite(ModuleTests)