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test_compat.py
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230 lines (165 loc) · 6.42 KB
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# -*- coding: utf-8 -*-
# TODO: Complete removal of methods below. Similar to test_module
"""Backward-compatibility tests for deprecated features."""
import types
import pytest
from .utils import is_clr_class, is_clr_module, is_clr_root_module
# Tests for old-style CLR-prefixed module naming.
def test_simple_import():
"""Test simple import."""
import CLR
assert is_clr_root_module(CLR)
assert CLR.__name__ == 'clr'
import sys
assert isinstance(sys, types.ModuleType)
assert sys.__name__ == 'sys'
import http.client
assert isinstance(http.client, types.ModuleType)
assert http.client.__name__ == 'http.client'
def test_simple_import_with_alias():
"""Test simple import with aliasing."""
import CLR as myCLR
assert is_clr_root_module(myCLR)
assert myCLR.__name__ == 'clr'
import sys as mySys
assert isinstance(mySys, types.ModuleType)
assert mySys.__name__ == 'sys'
import http.client as myHttplib
assert isinstance(myHttplib, types.ModuleType)
assert myHttplib.__name__ == 'http.client'
def test_dotted_name_import():
"""Test dotted-name import."""
import CLR.System
assert is_clr_module(CLR.System)
assert CLR.System.__name__ == 'System'
import System
assert is_clr_module(System)
assert System.__name__ == 'System'
assert System is CLR.System
import xml.dom
assert isinstance(xml.dom, types.ModuleType)
assert xml.dom.__name__ == 'xml.dom'
def test_dotted_name_import_with_alias():
"""Test dotted-name import with aliasing."""
import CLR.System as myCLRSystem
assert is_clr_module(myCLRSystem)
assert myCLRSystem.__name__ == 'System'
import System as mySystem
assert is_clr_module(mySystem)
assert mySystem.__name__ == 'System'
assert mySystem is myCLRSystem
import xml.dom as myDom
assert isinstance(myDom, types.ModuleType)
assert myDom.__name__ == 'xml.dom'
def test_simple_import_from():
"""Test simple 'import from'."""
from CLR import System
assert is_clr_module(System)
assert System.__name__ == 'System'
from xml import dom
assert isinstance(dom, types.ModuleType)
assert dom.__name__ == 'xml.dom'
def test_simple_import_from_with_alias():
"""Test simple 'import from' with aliasing."""
from CLR import System as mySystem
assert is_clr_module(mySystem)
assert mySystem.__name__ == 'System'
from xml import dom as myDom
assert isinstance(myDom, types.ModuleType)
assert myDom.__name__ == 'xml.dom'
def test_dotted_name_import_from():
"""Test dotted-name 'import from'."""
from CLR.System import Xml
assert is_clr_module(Xml)
assert Xml.__name__ == 'System.Xml'
from CLR.System.Xml import XmlDocument
assert is_clr_class(XmlDocument)
assert XmlDocument.__name__ == 'XmlDocument'
from xml.dom import pulldom
assert isinstance(pulldom, types.ModuleType)
assert pulldom.__name__ == 'xml.dom.pulldom'
from xml.dom.pulldom import PullDOM
assert isinstance(PullDOM, type)
assert PullDOM.__name__ == 'PullDOM'
def test_dotted_name_import_from_with_alias():
"""Test dotted-name 'import from' with aliasing."""
from CLR.System import Xml as myXml
assert is_clr_module(myXml)
assert myXml.__name__ == 'System.Xml'
from CLR.System.Xml import XmlDocument as myXmlDocument
assert is_clr_class(myXmlDocument)
assert myXmlDocument.__name__ == 'XmlDocument'
from xml.dom import pulldom as myPulldom
assert isinstance(myPulldom, types.ModuleType)
assert myPulldom.__name__ == 'xml.dom.pulldom'
from xml.dom.pulldom import PullDOM as myPullDOM
assert isinstance(myPullDOM, type)
assert myPullDOM.__name__ == 'PullDOM'
def test_from_module_import_star():
"""Test from module import * behavior."""
count = len(locals().keys())
m = __import__('CLR.System.Management', globals(), locals(), ['*'])
assert m.__name__ == 'System.Management'
assert is_clr_module(m)
assert len(locals().keys()) > count + 1
m2 = __import__('System.Management', globals(), locals(), ['*'])
assert m2.__name__ == 'System.Management'
assert is_clr_module(m2)
assert len(locals().keys()) > count + 1
assert m is m2
def test_explicit_assembly_load():
"""Test explicit assembly loading using standard CLR tools."""
from CLR.System.Reflection import Assembly
from CLR import System
import sys
assembly = Assembly.LoadWithPartialName('System.Data')
assert assembly is not None
import CLR.System.Data
assert 'System.Data' in sys.modules
assembly = Assembly.LoadWithPartialName('SpamSpamSpamSpamEggsAndSpam')
assert assembly is None
def test_implicit_load_already_valid_namespace():
"""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 CLR.System module implicitly.
import CLR.System
assert is_clr_class(CLR.System.UriBuilder)
def test_import_non_existant_module():
"""Test import failure for a non-existent module."""
with pytest.raises(ImportError):
import System.SpamSpamSpam
with pytest.raises(ImportError):
import CLR.System.SpamSpamSpam
def test_lookup_no_namespace_type():
"""Test lookup of types without a qualified namespace."""
import CLR.Python.Test
import CLR
assert is_clr_class(CLR.NoNamespaceType)
def test_module_lookup_recursion():
"""Test for recursive lookup handling."""
with pytest.raises(ImportError):
from CLR import CLR
with pytest.raises(AttributeError):
import CLR
_ = CLR.CLR
def test_module_get_attr():
"""Test module getattr behavior."""
import CLR.System as System
int_type = System.Int32
assert is_clr_class(int_type)
module = System.Xml
assert is_clr_module(module)
with pytest.raises(AttributeError):
_ = System.Spam
with pytest.raises(TypeError):
_ = getattr(System, 1)
def test_multiple_imports():
# import CLR did raise a Seg Fault once
# test if the Exceptions.warn() method still causes it
for _ in range(100):
import CLR
_ = CLR