Function test_init_factory_dual

tests/test_factory_constructors.py:228–307

Tests init factory functions with dual main/alias factory functions

()

@pytest.mark.skipif("env.GRAALPY", reason="Cannot reliably trigger GC")
def test_init_factory_dual():
    """Tests init factory functions with dual main/alias factory functions"""
    from pybind11_tests.factory_constructors import TestFactory7

    cstats = [TestFactory7.get_cstats(), TestFactory7.get_alias_cstats()]
    cstats[0].alive()  # force gc
    n_inst = ConstructorStats.detail_reg_inst()

    class PythFactory7(TestFactory7):
        def get(self):
            return 100 + TestFactory7.get(self)

    a1 = TestFactory7(1)
    a2 = PythFactory7(2)
    assert a1.get() == 1
    assert a2.get() == 102
    assert not a1.has_alias()
    assert a2.has_alias()

    b1 = TestFactory7(tag.pointer, 3)
    b2 = PythFactory7(tag.pointer, 4)
    assert b1.get() == 3
    assert b2.get() == 104
    assert not b1.has_alias()
    assert b2.has_alias()

    c1 = TestFactory7(tag.mixed, 5)
    c2 = PythFactory7(tag.mixed, 6)
    assert c1.get() == 5
    assert c2.get() == 106
    assert not c1.has_alias()
    assert c2.has_alias()

    d1 = TestFactory7(tag.base, tag.pointer, 7)
    d2 = PythFactory7(tag.base, tag.pointer, 8)
    assert d1.get() == 7
    assert d2.get() == 108
    assert not d1.has_alias()
    assert d2.has_alias()

    # Both return an alias; the second multiplies the value by 10:
    e1 = TestFactory7(tag.alias, tag.pointer, 9)
    e2 = PythFactory7(tag.alias, tag.pointer, 10)
    assert e1.get() == 9
    assert e2.get() == 200
    assert e1.has_alias()
    assert e2.has_alias()

    f1 = TestFactory7(tag.shared_ptr, tag.base, 11)
    f2 = PythFactory7(tag.shared_ptr, tag.base, 12)
    assert f1.get() == 11
    assert f2.get() == 112
    assert not f1.has_alias()
    assert f2.has_alias()

    g1 = TestFactory7(tag.shared_ptr, tag.invalid_base, 13)
    assert g1.get() == 13
    assert not g1.has_alias()