test_multiple_inheritance.py revision 12037
112037Sandreas.sandberg@arm.comimport pytest 211986Sandreas.sandberg@arm.com 311986Sandreas.sandberg@arm.com 411986Sandreas.sandberg@arm.comdef test_multiple_inheritance_cpp(): 511986Sandreas.sandberg@arm.com from pybind11_tests import MIType 611986Sandreas.sandberg@arm.com 711986Sandreas.sandberg@arm.com mt = MIType(3, 4) 811986Sandreas.sandberg@arm.com 911986Sandreas.sandberg@arm.com assert mt.foo() == 3 1011986Sandreas.sandberg@arm.com assert mt.bar() == 4 1111986Sandreas.sandberg@arm.com 1211986Sandreas.sandberg@arm.com 1311986Sandreas.sandberg@arm.comdef test_multiple_inheritance_mix1(): 1411986Sandreas.sandberg@arm.com from pybind11_tests import Base2 1511986Sandreas.sandberg@arm.com 1611986Sandreas.sandberg@arm.com class Base1: 1711986Sandreas.sandberg@arm.com def __init__(self, i): 1811986Sandreas.sandberg@arm.com self.i = i 1911986Sandreas.sandberg@arm.com 2011986Sandreas.sandberg@arm.com def foo(self): 2111986Sandreas.sandberg@arm.com return self.i 2211986Sandreas.sandberg@arm.com 2311986Sandreas.sandberg@arm.com class MITypePy(Base1, Base2): 2411986Sandreas.sandberg@arm.com def __init__(self, i, j): 2511986Sandreas.sandberg@arm.com Base1.__init__(self, i) 2611986Sandreas.sandberg@arm.com Base2.__init__(self, j) 2711986Sandreas.sandberg@arm.com 2811986Sandreas.sandberg@arm.com mt = MITypePy(3, 4) 2911986Sandreas.sandberg@arm.com 3011986Sandreas.sandberg@arm.com assert mt.foo() == 3 3111986Sandreas.sandberg@arm.com assert mt.bar() == 4 3211986Sandreas.sandberg@arm.com 3311986Sandreas.sandberg@arm.com 3411986Sandreas.sandberg@arm.comdef test_multiple_inheritance_mix2(): 3511986Sandreas.sandberg@arm.com from pybind11_tests import Base1 3611986Sandreas.sandberg@arm.com 3711986Sandreas.sandberg@arm.com class Base2: 3811986Sandreas.sandberg@arm.com def __init__(self, i): 3911986Sandreas.sandberg@arm.com self.i = i 4011986Sandreas.sandberg@arm.com 4111986Sandreas.sandberg@arm.com def bar(self): 4211986Sandreas.sandberg@arm.com return self.i 4311986Sandreas.sandberg@arm.com 4411986Sandreas.sandberg@arm.com class MITypePy(Base1, Base2): 4511986Sandreas.sandberg@arm.com def __init__(self, i, j): 4611986Sandreas.sandberg@arm.com Base1.__init__(self, i) 4711986Sandreas.sandberg@arm.com Base2.__init__(self, j) 4811986Sandreas.sandberg@arm.com 4911986Sandreas.sandberg@arm.com mt = MITypePy(3, 4) 5011986Sandreas.sandberg@arm.com 5111986Sandreas.sandberg@arm.com assert mt.foo() == 3 5211986Sandreas.sandberg@arm.com assert mt.bar() == 4 5311986Sandreas.sandberg@arm.com 5411986Sandreas.sandberg@arm.com 5512037Sandreas.sandberg@arm.comdef test_multiple_inheritance_error(): 5612037Sandreas.sandberg@arm.com """Inheriting from multiple C++ bases in Python is not supported""" 5712037Sandreas.sandberg@arm.com from pybind11_tests import Base1, Base2 5812037Sandreas.sandberg@arm.com 5912037Sandreas.sandberg@arm.com with pytest.raises(TypeError) as excinfo: 6012037Sandreas.sandberg@arm.com # noinspection PyUnusedLocal 6112037Sandreas.sandberg@arm.com class MI(Base1, Base2): 6212037Sandreas.sandberg@arm.com pass 6312037Sandreas.sandberg@arm.com assert "Can't inherit from multiple C++ classes in Python" in str(excinfo.value) 6412037Sandreas.sandberg@arm.com 6512037Sandreas.sandberg@arm.com 6611986Sandreas.sandberg@arm.comdef test_multiple_inheritance_virtbase(): 6711986Sandreas.sandberg@arm.com from pybind11_tests import Base12a, bar_base2a, bar_base2a_sharedptr 6811986Sandreas.sandberg@arm.com 6911986Sandreas.sandberg@arm.com class MITypePy(Base12a): 7011986Sandreas.sandberg@arm.com def __init__(self, i, j): 7111986Sandreas.sandberg@arm.com Base12a.__init__(self, i, j) 7211986Sandreas.sandberg@arm.com 7311986Sandreas.sandberg@arm.com mt = MITypePy(3, 4) 7411986Sandreas.sandberg@arm.com assert mt.bar() == 4 7511986Sandreas.sandberg@arm.com assert bar_base2a(mt) == 4 7611986Sandreas.sandberg@arm.com assert bar_base2a_sharedptr(mt) == 4 7712037Sandreas.sandberg@arm.com 7812037Sandreas.sandberg@arm.com 7912037Sandreas.sandberg@arm.comdef test_mi_static_properties(): 8012037Sandreas.sandberg@arm.com """Mixing bases with and without static properties should be possible 8112037Sandreas.sandberg@arm.com and the result should be independent of base definition order""" 8212037Sandreas.sandberg@arm.com from pybind11_tests import mi 8312037Sandreas.sandberg@arm.com 8412037Sandreas.sandberg@arm.com for d in (mi.VanillaStaticMix1(), mi.VanillaStaticMix2()): 8512037Sandreas.sandberg@arm.com assert d.vanilla() == "Vanilla" 8612037Sandreas.sandberg@arm.com assert d.static_func1() == "WithStatic1" 8712037Sandreas.sandberg@arm.com assert d.static_func2() == "WithStatic2" 8812037Sandreas.sandberg@arm.com assert d.static_func() == d.__class__.__name__ 8912037Sandreas.sandberg@arm.com 9012037Sandreas.sandberg@arm.com mi.WithStatic1.static_value1 = 1 9112037Sandreas.sandberg@arm.com mi.WithStatic2.static_value2 = 2 9212037Sandreas.sandberg@arm.com assert d.static_value1 == 1 9312037Sandreas.sandberg@arm.com assert d.static_value2 == 2 9412037Sandreas.sandberg@arm.com assert d.static_value == 12 9512037Sandreas.sandberg@arm.com 9612037Sandreas.sandberg@arm.com d.static_value1 = 0 9712037Sandreas.sandberg@arm.com assert d.static_value1 == 0 9812037Sandreas.sandberg@arm.com d.static_value2 = 0 9912037Sandreas.sandberg@arm.com assert d.static_value2 == 0 10012037Sandreas.sandberg@arm.com d.static_value = 0 10112037Sandreas.sandberg@arm.com assert d.static_value == 0 10212037Sandreas.sandberg@arm.com 10312037Sandreas.sandberg@arm.com 10412037Sandreas.sandberg@arm.com@pytest.unsupported_on_pypy 10512037Sandreas.sandberg@arm.comdef test_mi_dynamic_attributes(): 10612037Sandreas.sandberg@arm.com """Mixing bases with and without dynamic attribute support""" 10712037Sandreas.sandberg@arm.com from pybind11_tests import mi 10812037Sandreas.sandberg@arm.com 10912037Sandreas.sandberg@arm.com for d in (mi.VanillaDictMix1(), mi.VanillaDictMix2()): 11012037Sandreas.sandberg@arm.com d.dynamic = 1 11112037Sandreas.sandberg@arm.com assert d.dynamic == 1 112