def test_graph_ecs_component_from_def():
entity_id = 1
position = GraphComponent.from_def(entity_id, Position)
assert position.component_name == Position.name
# test that we cannnot create from ComponentDef with unset name
has_error = False
try:
GraphComponent.from_def(entity_id, ComponentDef("", {}))
except ValueError:
has_error = True
assert has_error
def test_graph_ecs_component_aug_assign_node():
entity_id, inputs, outputs = 1, OrderedDict(), OrderedDict()
position = GraphComponent.from_def(entity_id, Position)
position.use_input_outputs(inputs, outputs)
# check augment assignment flags the attribute (position.x) as both input and output
position.y += 30
attr_ref = AttributeRef(
entity_id=entity_id,
component=Position.name,
attribute="y",
)
expected_input = Node(retrieve_op=Node.Retrieve(retrieve_attr=attr_ref))
expected_output = Node(mutate_op=Node.Mutate(
mutate_attr=attr_ref,
to_node=Node(add_op=Node.Add(
x=expected_input,
y=wrap_const(30),
)),
))
assert len(inputs) == 1
assert inputs[to_str_attr(attr_ref)] == expected_input
assert len(outputs) == 1
assert outputs[to_str_attr(attr_ref)] == expected_output
def test_graph_ecs_component_set_attr_ignore_self_assign():
entity_id, inputs, outputs = 1, OrderedDict(), OrderedDict()
position = GraphComponent.from_def(entity_id, Position)
position.use_input_outputs(inputs, outputs)
# test assignment should be ignore as we are setting to the attribute to itself position.x = position.x
assert len(outputs) == 0
def test_graph_ecs_entity():
components = [GraphComponent.from_def(entity_id=1, component_def=Position)]
entity = GraphEntity(components=components, entity_id=1)
# check Entity's components accessible via `.components`
assert [c.component_name for c in entity.components] == [Position.name]
# check component accessible by name using [] notation
position = entity[Position]
assert isinstance(position, GraphComponent)
def test_graph_ecs_component_get_attr_preserve_set_graph():
entity_id = 1
position = GraphComponent.from_def(entity_id, Position)
# check that getting an attribute from a component preserves
# any graph that has already being built by set_attr()
position.x = 2
pos_x = position.x
expected_node = GraphNode.wrap(2)
assert to_yaml_proto(pos_x.node) == to_yaml_proto(
expected_node.node) # type: ignore
def test_graph_ecs_component_set_attr_native_value():
entity_id, inputs, outputs = 1, OrderedDict(), OrderedDict()
position = GraphComponent.from_def(entity_id, Position)
position.use_input_outputs(inputs, outputs)
# check setting attribute to native sets expected output node node.
position.y = 3
attr_ref = AttributeRef(
entity_id=entity_id,
component=Position.name,
attribute="y",
)
expected_node = Node(mutate_op=Node.Mutate(
mutate_attr=attr_ref,
to_node=wrap_const(3),
))
assert outputs[to_str_attr(attr_ref)] == expected_node
def test_graph_ecs_component_get_attr():
entity_id, inputs, outputs = 1, OrderedDict(), OrderedDict()
position = GraphComponent.from_def(entity_id, Position)
position.use_input_outputs(inputs, outputs)
# check that getting an attribute from a component returns a GraphNode
# wrapping a Retrieve node that retrieves the attribute
pos_x = position.x
attr_ref = AttributeRef(entity_id=entity_id,
component=Position.name,
attribute="x")
expected_node = Node(retrieve_op=Node.Retrieve(retrieve_attr=attr_ref))
assert pos_x.node == expected_node
# check that component records the retrieve in
assert inputs[to_str_attr(attr_ref)].node == expected_node
# check that retrieving the same attribute only records it once
pos_y = position.x
assert len(inputs) == 1
def test_graph_ecs_component_set_attr_node():
entity_id, inputs, outputs = 1, OrderedDict(), OrderedDict()
position = GraphComponent.from_def(entity_id, Position)
position.use_input_outputs(inputs, outputs)
pos_x = position.x
position.y = 10
# check setting attribute to node sets expected output node.
position.y = pos_x
attr_ref = AttributeRef(
entity_id=entity_id,
component=Position.name,
attribute="y",
)
expected_node = Node(mutate_op=Node.Mutate(
mutate_attr=attr_ref,
to_node=pos_x.node,
))
assert outputs[to_str_attr(attr_ref)].node == expected_node
# check that setting attribute only takes the last definition
# the first definition should be ignored since the attribute is redefined
assert len(outputs) == 1