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149 lines (108 loc) · 4.44 KB
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# -*- coding: utf-8 -*-
"""Test CLR interface support."""
import Python.Test as Test
import pytest
from .utils import DictProxyType
def test_interface_standard_attrs():
"""Test standard class attributes."""
from Python.Test import IPublicInterface
assert IPublicInterface.__name__ == 'IPublicInterface'
assert IPublicInterface.__module__ == 'Python.Test'
assert isinstance(IPublicInterface.__dict__, DictProxyType)
def test_global_interface_visibility():
"""Test visibility of module-level interfaces."""
from Python.Test import IPublicInterface
assert IPublicInterface.__name__ == 'IPublicInterface'
with pytest.raises(ImportError):
from Python.Test import IInternalInterface
_ = IInternalInterface
with pytest.raises(AttributeError):
_ = Test.IInternalInterface
def test_nested_interface_visibility():
"""Test visibility of nested interfaces."""
from Python.Test import InterfaceTest
ob = InterfaceTest.IPublic
assert ob.__name__ == 'IPublic'
ob = InterfaceTest.IProtected
assert ob.__name__ == 'IProtected'
with pytest.raises(AttributeError):
_ = InterfaceTest.IInternal
with pytest.raises(AttributeError):
_ = InterfaceTest.IPrivate
def test_explicit_cast_to_interface():
"""Test explicit cast to an interface."""
from Python.Test import InterfaceTest
ob = InterfaceTest()
assert type(ob).__name__ == 'InterfaceTest'
assert hasattr(ob, 'HelloProperty')
i1 = Test.ISayHello1(ob)
assert type(i1).__name__ == 'ISayHello1'
assert hasattr(i1, 'SayHello')
assert i1.SayHello() == 'hello 1'
assert not hasattr(i1, 'HelloProperty')
assert i1.__implementation__ == ob
assert i1.__raw_implementation__ == ob
i2 = Test.ISayHello2(ob)
assert type(i2).__name__ == 'ISayHello2'
assert i2.SayHello() == 'hello 2'
assert hasattr(i2, 'SayHello')
assert not hasattr(i2, 'HelloProperty')
def test_interface_object_returned_through_method():
"""Test interface type is used if method return type is interface"""
from Python.Test import InterfaceTest
ob = InterfaceTest()
hello1 = ob.GetISayHello1()
assert type(hello1).__name__ == 'ISayHello1'
assert hello1.__implementation__.__class__.__name__ == "InterfaceTest"
assert hello1.SayHello() == 'hello 1'
def test_interface_object_returned_through_out_param():
"""Test interface type is used for out parameters of interface types"""
from Python.Test import InterfaceTest
ob = InterfaceTest()
hello2 = ob.GetISayHello2(None)
assert type(hello2).__name__ == 'ISayHello2'
assert hello2.SayHello() == 'hello 2'
def test_null_interface_object_returned():
"""Test None is used also for methods with interface return types"""
from Python.Test import InterfaceTest
ob = InterfaceTest()
hello1, hello2 = ob.GetNoSayHello(None)
assert hello1 is None
assert hello2 is None
def test_interface_array_returned():
"""Test interface type used for methods returning interface arrays"""
from Python.Test import InterfaceTest
ob = InterfaceTest()
hellos = ob.GetISayHello1Array()
assert type(hellos[0]).__name__ == 'ISayHello1'
assert hellos[0].__implementation__.__class__.__name__ == "InterfaceTest"
def test_implementation_access():
"""Test the __implementation__ and __raw_implementation__ properties"""
import System
clrVal = System.Int32(100)
i = System.IComparable(clrVal)
assert 100 == i.__implementation__
assert clrVal == i.__raw_implementation__
assert i.__implementation__ != i.__raw_implementation__
def test_interface_collection_iteration():
"""Test interface type is used when iterating over interface collection"""
import System
from System.Collections.Generic import List
elem = System.IComparable(System.Int32(100))
typed_list = List[System.IComparable]()
typed_list.Add(elem)
for e in typed_list:
assert type(e).__name__ == "IComparable"
untyped_list = System.Collections.ArrayList()
untyped_list.Add(elem)
for e in untyped_list:
assert type(e).__name__ == "int"
def test_methods_of_Object_are_available():
"""Test calling methods inherited from Object"""
import System
clrVal = System.Int32(100)
i = System.IComparable(clrVal)
assert i.Equals(clrVal)
assert clrVal.GetHashCode() == i.GetHashCode()
assert clrVal.GetType() == i.GetType()
assert clrVal.ToString() == i.ToString()