def testCreateInstance(self):
"""Test derived instances can be created from managed code"""
object = TestFunctions.create_instance(DerivedClass)
self.assertEqual(object.foo(), "DerivedClass")
self.assertEqual(TestFunctions.test_foo(object), "DerivedClass")
self.assertEqual(object.bar("bar", 2), "bar_bar")
self.assertEqual(TestFunctions.test_bar(object, "bar", 2), "bar_bar")
self.assertEqual(object.not_overriden(), "not_overriden")
x = TestFunctions.pass_through(object)
self.assertEqual(id(x), id(object))
object2 = TestFunctions.create_instance(InterfaceTestClass)
self.assertEqual(object2.foo(), "InterfaceTestClass")
self.assertEqual(TestFunctions.test_foo(object2), "InterfaceTestClass")
self.assertEqual(object2.bar("bar", 2), "bar/bar")
self.assertEqual(TestFunctions.test_bar(object2, "bar", 2), "bar/bar")
y = TestFunctions.pass_through(object2)
self.assertEqual(id(y), id(object2))
