def test_frozen():
"""
FrozenDict is not modifyable
"""
f = FrozenDict(a=1)
with pytest.raises(ValueError):
f['b'] = 5
def __init__(self,
tag_name,
attributes=None,
style=None,
children=None,
key=None,
schema=None):
if isinstance(tag_name, dict) or isinstance(tag_name, list):
# Backwards compatible interface
warnings.warn('Passing dict to VDOM constructor is deprecated')
value = tag_name
vdom_obj = VDOM.from_dict(value)
tag_name = vdom_obj.tag_name
style = vdom_obj.style
attributes = vdom_obj.attributes
children = vdom_obj.children
key = vdom_obj.key
self.tag_name = tag_name
# Sort attributes so our outputs are predictable
self.attributes = FrozenDict(sorted(
attributes.items())) if attributes else FrozenDict()
self.children = tuple(children) if children else tuple()
self.key = key
# Sort attributes so our outputs are predictable
self.style = FrozenDict(sorted(
style.items())) if style else FrozenDict()
# Validate that all children are VDOMs or strings
if not all(
isinstance(c, (VDOM, string_types[:])) for c in self.children):
raise ValueError(
'Children must be a list of VDOM objects or strings')
# All style keys & values must be strings
if not all(
isinstance(k, string_types) and isinstance(v, string_types)
for k, v in self.style.items()):
raise ValueError('Style must be a dict with string keys & values')
# mark completion of object creation. Object is immutable from now.
self._frozen = True
if schema is not None:
self.validate(schema)
def __init__(self, tag_name, attributes=None, children=None, key=None, schema=None):
if isinstance(tag_name, dict) or isinstance(tag_name, list):
# Backwards compatible interface
warnings.warn('Passing dict to VDOM constructor is deprecated')
value = tag_name
vdom_obj = VDOM.from_dict(value)
tag_name = vdom_obj.tag_name
attributes = vdom_obj.attributes
children = vdom_obj.children
key = vdom_obj.key
self.tag_name = tag_name
self.attributes = FrozenDict(attributes) if attributes else FrozenDict()
self.children = tuple(children) if children else tuple()
self.key = key
# Validate that all children are VDOMs or strings
if not all([isinstance(c, (VDOM, string_types[:])) for c in self.children]):
raise ValueError('Children must be a list of VDOM objects or strings')
# mark completion of object creation. Object is immutable from now.
self._frozen = True
if schema is not None:
self.validate(schema)
def test_ordering():
"""
FrozenDict should preserve ordering
"""
f = FrozenDict([('a', 1), ('b', 2)])
assert list(f.items()) == [('a', 1), ('b', 2)]