# -*- 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()