def test_StoreIO_coerce__raises_custom_ValueError_if_coercion_is_impossible():
abcd = namedtuple('abcd', ['a', 'b', 'c', 'd'])
x = abcd('A', 'B', 'C', 'D')
S = StoreIO(**x._asdict())
with pytest.raises(ValueError) as excinfo:
S._coerce_attrs()
assert str(excinfo.value) == "Cannot coerce StoreIO.a to <class 'int'>"
def test_StoreIO_coerce__raises_custom_ValueError_to_prevent_float_to_int_coercion(
):
abcd = namedtuple('abcd', ['a', 'b', 'c', 'd'])
x = abcd("1", 1.5, "2", '3')
S = StoreIO(**x._asdict())
#with pytest.raises(ValueError) as excinfo:
with pytest.raises(ValueError):
S._coerce_attrs()
def test_StoreIO_coerce_attrs_then_validate_attrs__with_partial_set():
abc = namedtuple('abc', ['a', 'b', 'c'])
x = abc('1', '2', '3')
S = StoreIO(**x._asdict())
assert isinstance(S.a, str)
assert isinstance(S.c, str)
S._coerce_attrs()
assert isinstance(S.a, int)
assert isinstance(S.c, int)
assert S._validate_attrs()
def test_StoreIO_coerce_attrs_then_validate_attrs():
abcd = namedtuple('abcd', ['a', 'b', 'c', 'd'])
x = abcd('1', '2', '3', '4')
S = StoreIO(**x._asdict())
S._coerce_attrs()
assert S._validate_attrs()