class C:
@Attr.set_value
def x(self, attr, value):
attr.value = value * 5
y = Attr()
@y.set_value
def y(self, attr, value):
attr.value = value * 2
class C:
x = Attr()
@x.init_value
def x(self, attr, value):
attr.value = value.upper()
@Attr.init_value
def y(self, attr, value):
attr.value = value.lower()
class C:
@Attr.get_value
def x(self, attr):
return attr.value * 5 if attr.value else attr.value
y = Attr()
@y.get_value
def y(self, attr):
return attr.value * 2 if attr.value else attr.value
class C:
@Attr.init_value
def x(self, attr):
attr.value = 5
y = Attr()
@y.init_value
def y(self, attr):
attr.value = 20
class D(C):
z = Attr()
class C:
x = Attr(safe=True)
class C:
x = Attr(safe=True, cli=True)
y = Attr(cli='y')
class C:
x = Attr()
@Attr
def y(self, attr):
return attr.value
class C:
w = Attr()
x = Attr()
y = Attr()
class D(C):
a = Attr()
x = 5
b = Attr()
def test_cannot_reset_attr_on_attrs(xy_container_cls):
with pytest.raises(AttributeError):
xy_container_cls.attrs.x = Attr('x', default=100)
class D(C):
y = Attr()
class E(D):
z = Attr()
def test_repr():
x = Attr(name='x')
assert repr(x) == "<Attr 'x'>"
def test_cannot_set_default_value_and_required_together():
with pytest.raises(ValueError):
Attr(required=True, default=1)
def test_cannot_set_nonexistent_attribute_of_attr():
x = Attr()
with pytest.raises(AttributeError):
x.safe = True
class C:
x = Attr()
class C:
attrs_cls = CustomAttrs
bound_attr_cls = CustomBoundAttr
x = Attr()
class C:
x = Attr('x')
y = Attr('y')
z = Attr('z', required=True)
class C:
x = Attr()
y = 10 # non-attr