def test_property_fragment():
"""Property fragment dictionaries can be represented and serialized."""
init = {
"description":
"Shows the current status of the lamp",
"readOnly":
True,
"observable":
False,
"type":
"string",
"security": [{
"scheme": "nosec"
}],
"forms": [{
"href": "coaps://mylamp.example.com/status",
"contentType": "application/json"
}]
}
prop_fragment = PropertyFragmentDict(init)
assert prop_fragment.read_only == init["readOnly"]
assert prop_fragment.write_only is False
assert prop_fragment.observable == init["observable"]
assert isinstance(prop_fragment.data_schema, DataSchemaDict)
assert prop_fragment.data_schema.type == init["type"]
assert len(prop_fragment.forms) == len(init["forms"])
assert prop_fragment.forms[0].href == init["forms"][0]["href"]
assert prop_fragment.security[0].scheme == init["security"][0]["scheme"]
assert json.dumps(prop_fragment.to_dict())
with pytest.raises(Exception):
PropertyFragmentDict({})
def add_property(self, name, property_init, value=None):
"""Adds a Property defined by the argument and updates the Thing Description.
Takes an instance of ThingPropertyInit as argument."""
if isinstance(property_init, dict):
property_init = PropertyFragmentDict(property_init)
prop = Property(thing=self._thing, name=name, init_dict=property_init)
self._thing.add_interaction(prop)
self._set_property_value(prop, value)
event_data = ThingDescriptionChangeEventInit(
td_change_type=TDChangeType.PROPERTY,
method=TDChangeMethod.ADD,
name=name,
data=property_init.to_dict(),
description=ThingDescription.from_thing(self.thing).to_dict())
self._events_stream.on_next(
ThingDescriptionChangeEmittedEvent(init=event_data))