def test_raises_exception_when_validation_fails(self):
with pytest.raises(AttributeValidationFailed):
_extract_values({"my_attr": Attribute(validator=lambda a: False)})
def test_raises_exception_when_required_and_not_given(self):
with pytest.raises(RequiredAttributeMissing):
_extract_values({"my_attr": Attribute(required=True)})
def test_with_successfull_validation(self):
assert {"my_attr": None} == \
_extract_values({"my_attr": Attribute(validator=lambda a: True)})
def test_default_is_none(self):
assert {"my_attr": None} == _extract_values({"my_attr": Attribute()})
def test_constructor(self):
assert {
"my_attr": 1
} == _extract_values({"my_attr": Attribute(constructor=int)},
my_attr="1")
def test_default_value_from_positional_attributes(self):
assert {"my_attr": True} == \
_extract_values({"my_attr": Attribute(default=True, position=0)})
def test_default_value_from_keyword_attributes(self):
assert {"my_attr": True} == \
_extract_values({"my_attr": Attribute(default=True)})
def test_from_sliced_positional_attribute(self):
assert {"my_attr": [1, 3, 5]} == \
_extract_values({"my_attr": Attribute(position=slice(1, 6, 2))},
*tuple(range(9)))
def test_from_positional_attribute(self):
assert {"my_attr": 1} == \
_extract_values({"my_attr": Attribute(position=0)}, 1)
def test_from_keyword_attributes(self):
assert {"my_attr": 1} == \
_extract_values({"my_attr": Attribute()}, my_attr=1)
