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# Copyright David Abrahams 2004. Distributed under the Boost
# Software License, Version 1.0. (See accompanying
# file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
import unittest
from polymorphism_ext import *
class PolymorphTest(unittest.TestCase):
def testReturnCpp(self):
# Python Created Object With Same Id As
# Cpp Created B Object
# b = B(872)
# Get Reference To Cpp Created B Object
a = getBCppObj()
# Python Created B Object and Cpp B Object
# Should have same result by calling f()
self.assertEqual ('B::f()', a.f())
self.assertEqual ('B::f()', call_f(a))
self.assertEqual ('A::f()', call_f(A()))
def test_references(self):
# B is not exposed to Python
a = getBCppObj()
self.assertEqual(type(a), A)
# C is exposed to Python
c = getCCppObj()
self.assertEqual(type(c), C)
def test_factory(self):
self.assertEqual(type(factory(0)), A)
self.assertEqual(type(factory(1)), A)
self.assertEqual(type(factory(2)), C)
def test_return_py(self):
class X(A):
def f(self):
return 'X.f'
x = X()
self.assertEqual ('X.f', x.f())
self.assertEqual ('X.f', call_f(x))
def test_wrapper_downcast(self):
a = pass_a(D())
self.assertEqual('D::g()', a.g())
def test_pure_virtual(self):
p = P()
self.assertRaises(RuntimeError, p.f)
q = Q()
self.assertEqual ('Q::f()', q.f())
class R(P):
def f(self):
return 'R.f'
r = R()
self.assertEqual ('R.f', r.f())
if __name__ == "__main__":
# remove the option which upsets unittest
import sys
sys.argv = [ x for x in sys.argv if x != '--broken-auto-ptr' ]
unittest.main()
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