def test_validation_if_strict_and_nullable():
STRICT_MODE.strict_mode()
tc = TypeConstraints(str, nullable=True)
with pytest.raises(ConstraintValueError):
tc.validate(1)
STRICT_MODE._unstrict_mode()
def test_validation_if_not_strict():
tc = TypeConstraints(str)
with pytest.raises(ConstraintValueError):
tc.validate(1)
def test_allow_nullable_in_strict():
STRICT_MODE.strict_mode()
tc = TypeConstraints(str, nullable=True)
valid, value = tc.validator(None)
assert valid
STRICT_MODE._unstrict_mode()