def test_error_when_trying_to_style_non_existent_attribute():
class Foo:
@reinvokable
def __init__(self):
pass
def __repr__(self):
return '<Foo>'
style = Namespace(something_that_does_not_exist='!!!')
with pytest.raises(InvalidStyleConfigurationException) as e:
apply_style_data(style_data=style, obj=Foo())
assert str(
e.value
) == "Object <Foo> could not be updated with style configuration {'something_that_does_not_exist': '!!!'}"
def test_style():
class A(Traversable):
@dispatch
@reinvokable
def __init__(self, **kwargs):
super().__init__(**kwargs)
foo = Refinable()
bar = Refinable()
@classmethod
@class_shortcut
def shortcut1(cls, call_target, **kwargs):
return call_target(**kwargs)
def items(self):
return dict(foo=self.foo, bar=self.bar)
class B(A):
@dispatch
@reinvokable
def __init__(self, **kwargs):
super().__init__(**kwargs)
@classmethod
@class_shortcut(call_target__attribute='shortcut1')
def shortcut2(cls, call_target, **kwargs):
return call_target(**kwargs)
base = Style(A=dict(foo=1, ), )
overrides = Style(
base,
A=dict(
shortcuts=dict(shortcut1__foo=4, ),
foo=5,
bar=6,
),
B=dict(bar=7, ),
)
# First the unstyled case
assert items(B()) == dict(foo=None, bar=None)
assert items(B.shortcut1()) == dict(foo=None, bar=None)
assert items(B.shortcut2()) == dict(foo=None, bar=None)
# Now let's add the style
b = B()
b = apply_style_data(style_data=overrides.component(b), obj=b)
assert items(b) == dict(foo=5, bar=7)
b = B.shortcut1()
assert overrides.component(b) == dict(foo=4, bar=7)
assert b.__tri_declarative_shortcut_stack == ['shortcut1']
b = apply_style_data(style_data=overrides.component(b), obj=b)
assert items(b) == dict(foo=4, bar=7)
b = B.shortcut2()
assert b.__tri_declarative_shortcut_stack == ['shortcut2', 'shortcut1']
assert overrides.component(b) == dict(foo=4, bar=7)
b = apply_style_data(style_data=overrides.component(b), obj=b)
assert items(b) == dict(foo=4, bar=7)
def test_apply_style_data_does_not_overwrite():
foo = Namespace(bar__template='specified')
style = Namespace(bar__template='style_template')
foo = apply_style_data(style_data=style, obj=foo)
assert foo == Namespace(bar__template='specified')