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import unittest.mock
import pytest
import qtpy.QtCore
import qtpynodeeditor as nodeeditor
from qtpynodeeditor import PortType
class MyNodeData(nodeeditor.NodeData):
data_type = nodeeditor.NodeDataType('MyNodeData', 'My Node Data')
class MyOtherNodeData(nodeeditor.NodeData):
data_type = nodeeditor.NodeDataType('MyOtherNodeData', 'My Other Node Data')
class BasicDataModel(nodeeditor.NodeDataModel):
name = 'MyDataModel'
caption = 'Caption'
caption_visible = True
num_ports = {'input': 3,
'output': 3
}
data_type = MyNodeData.data_type
def model(self):
return 'MyDataModel'
def out_data(self, port_index):
return MyNodeData()
def set_in_data(self, node_data, port):
...
def embedded_widget(self):
return None
class BasicOtherDataModel(nodeeditor.NodeDataModel):
name = 'MyOtherDataModel'
caption = 'Caption'
caption_visible = True
num_ports = {'input': 1,
'output': 1
}
data_type = MyOtherNodeData.data_type
# @pytest.mark.parametrize("model_class", [...])
@pytest.fixture(scope='function')
def model():
return BasicDataModel
@pytest.fixture(scope='function')
def other_model():
return BasicOtherDataModel
@pytest.fixture(scope='function')
def registry(model, other_model):
registry = nodeeditor.DataModelRegistry()
registry.register_model(model, category='My Category')
registry.register_model(other_model, category='My Category')
return registry
@pytest.fixture(scope='function')
def scene(qapp, registry):
return nodeeditor.FlowScene(registry=registry)
@pytest.fixture(scope='function')
def view(qtbot, scene):
view = nodeeditor.FlowView(scene)
qtbot.addWidget(view)
view.setWindowTitle("nodeeditor test suite")
view.resize(800, 600)
view.show()
return view
def test_instantiation(view):
...
def test_create_node(scene, model):
node = scene.create_node(model)
assert node in scene.nodes.values()
assert node.id in scene.nodes
assert scene.allow_node_creation
assert scene.allow_node_deletion
def test_selected_nodes(scene, model):
node = scene.create_node(model)
node.graphics_object.setSelected(True)
assert scene.selected_nodes() == [node]
def test_create_connection(scene, view, model):
node1 = scene.create_node(model)
node2 = scene.create_node(model)
scene.create_connection(node2[PortType.output][2],
node1[PortType.input][1],
)
view.update()
assert len(scene.connections) == 1
all_c1 = node1.state.all_connections
assert len(all_c1) == 1
all_c2 = node1.state.all_connections
assert len(all_c2) == 1
assert all_c1 == all_c2
conn, = all_c1
# conn_state = conn.state
in_node = conn.get_node(PortType.input)
in_port = conn.get_port_index(PortType.input)
out_node = conn.get_node(PortType.output)
out_port = conn.get_port_index(PortType.output)
assert in_node == node1
assert in_port == 1
assert out_node == node2
assert out_port == 2
scene.delete_connection(conn)
assert len(scene.connections) == 0
all_c1 = node1.state.all_connections
assert len(all_c1) == 0
all_c2 = node1.state.all_connections
assert len(all_c2) == 0
def test_create_connection_with_converter(scene, view, model, other_model):
node1 = scene.create_node(model)
node2 = scene.create_node(other_model)
# Converter not registerd, must raise Exception
with pytest.raises(nodeeditor.ConnectionDataTypeFailure):
scene.create_connection(node1[PortType.output][0], node2[PortType.input][0])
# Wrong converter, must fail
converter = nodeeditor.type_converter.TypeConverter(MyOtherNodeData.data_type,
MyNodeData.data_type,
lambda x: None)
scene.registry.register_type_converter(MyNodeData.data_type, MyOtherNodeData.data_type, converter)
with pytest.raises(nodeeditor.ConnectionDataTypeFailure):
scene.create_connection(node1[PortType.output][0], node2[PortType.input][0])
# Correct converter registered, must pass
converter = nodeeditor.type_converter.TypeConverter(MyNodeData.data_type,
MyOtherNodeData.data_type,
lambda x: None)
scene.registry.register_type_converter(MyNodeData.data_type, MyOtherNodeData.data_type, converter)
scene.create_connection(node1[PortType.output][0], node2[PortType.input][0])
def test_clear_scene(scene, view, model):
node1 = scene.create_node(model)
node2 = scene.create_node(model)
scene.create_connection(node2[PortType.output][2],
node1[PortType.input][1],
)
scene.clear_scene()
assert len(scene.nodes) == 0
assert len(scene.connections) == 0
all_c1 = node1.state.all_connections
assert len(all_c1) == 0
all_c2 = node1.state.all_connections
assert len(all_c2) == 0
def test_get_and_set_state(scene, model):
node1 = scene.create_node(model)
node2 = scene.create_node(model)
scene.create_connection(node2[PortType.output][2],
node1[PortType.input][1],
)
state = scene.__getstate__()
scene.__setstate__(state)
assert scene.__getstate__() == state
def test_save_load(tmp_path, scene, view, model):
node1 = scene.create_node(model)
node2 = scene.create_node(model)
created_nodes = (node1, node2)
assert len(scene.nodes) == len(created_nodes)
for node in created_nodes:
assert node in scene.nodes.values()
assert node.id in scene.nodes
fname = tmp_path / 'temp.flow'
scene.save(fname)
scene.load(fname)
assert len(scene.nodes) == len(created_nodes)
for node in created_nodes:
assert node not in scene.nodes.values()
assert node.id in scene.nodes
@pytest.mark.parametrize('reset, port_type',
[(True, 'input'),
(False, 'output')])
def test_smoke_reacting(scene, view, model, reset, port_type):
node = scene.create_node(model)
dtype = node.model.data_type[port_type][0]
node.react_to_possible_connection(
reacting_port_type=port_type,
reacting_data_type=dtype,
scene_point=qtpy.QtCore.QPointF(0, 0),
)
view.update()
if reset:
node.reset_reaction_to_connection()
def test_smoke_node_size_updated(scene, view, model):
node = scene.create_node(model)
node.on_node_size_updated()
view.update()
def test_connection_cycles(scene, view, model):
node1 = scene.create_node(model)
node2 = scene.create_node(model)
node3 = scene.create_node(model)
scene.create_connection(node1[PortType.output][0],
node2[PortType.input][0])
scene.create_connection(node2[PortType.output][0],
node3[PortType.input][0])
# node1 -> node2 -> node3
# Test with a fully-specified connection: try to connect node3->node1
with pytest.raises(nodeeditor.ConnectionCycleFailure):
scene.create_connection(node3[PortType.output][0],
node1[PortType.input][0])
# Test with a half-specified connection: start with node3
conn = scene.create_connection(node3[PortType.output][0])
# and then pretend the user attempts to connect it to node1:
interaction = nodeeditor.NodeConnectionInteraction(
node=node1, connection=conn, scene=scene)
assert interaction.creates_cycle
def test_smoke_connection_interaction(scene, view, model):
node1 = scene.create_node(model)
node2 = scene.create_node(model)
conn = scene.create_connection(node1[PortType.output][0])
interaction = nodeeditor.NodeConnectionInteraction(
node=node2, connection=conn, scene=scene)
node_scene_transform = node2.graphics_object.sceneTransform()
pos = node2.geometry.port_scene_position(PortType.input, 0,
node_scene_transform)
conn.geometry.set_end_point(PortType.input, pos)
with pytest.raises(nodeeditor.ConnectionPointFailure):
interaction.can_connect()
conn.geometry.set_end_point(PortType.output, pos)
with pytest.raises(nodeeditor.ConnectionPointFailure):
interaction.can_connect()
assert interaction.node_port_is_empty(PortType.input, 0)
assert interaction.connection_required_port == PortType.input
# TODO node still not on it?
interaction.can_connect = lambda: (node1.state[PortType.input][0], None)
assert interaction.try_connect()
interaction.disconnect(PortType.output)
interaction.connection_end_scene_position(PortType.input)
interaction.node_port_scene_position(PortType.input, 0)
interaction.node_port_under_scene_point(PortType.input, qtpy.QtCore.QPointF(0, 0))
def test_connection_interaction_wrong_data_type(scene, view, model, other_model):
node1 = scene.create_node(model)
node2 = scene.create_node(other_model)
conn = scene.create_connection(node1[PortType.output][0])
interaction = nodeeditor.NodeConnectionInteraction(
node=node2, connection=conn, scene=scene)
node_scene_transform = node2.graphics_object.sceneTransform()
pos = node2.geometry.port_scene_position(PortType.input, 0, node_scene_transform)
conn.geometry.set_end_point(PortType.input, conn.graphics_object.mapFromScene(pos))
with pytest.raises(nodeeditor.ConnectionDataTypeFailure):
interaction.can_connect()
def test_locate_node(scene, view, model):
node = scene.create_node(model)
assert scene.locate_node_at(node.position, view.transform()) == node
def test_view_scale(scene, view, model):
node1 = scene.create_node(model)
node2 = scene.create_node(model)
scene.create_connection(node2[PortType.output][2],
node1[PortType.input][1],
)
view.scale_up()
view.scale_down()
def test_view_delete_selected(scene, view, model):
node1 = scene.create_node(model)
node2 = scene.create_node(model)
conn = scene.create_connection(node2[PortType.output][2],
node1[PortType.input][1])
node1.graphics_object.setSelected(True)
conn.graphics_object.setSelected(True)
node2.graphics_object.setSelected(True)
view.delete_selected()
assert node1 not in scene.nodes.values()
assert node2 not in scene.nodes.values()
assert conn not in scene.connections
def test_smoke_view_context_menu(qtbot, view):
view.generate_context_menu(qtpy.QtCore.QPoint(0, 0))
def test_smoke_repr(scene, view, model):
node1 = scene.create_node(model)
node2 = scene.create_node(model)
print()
print('node1', node1)
print('node2', node2)
ports = (node2[PortType.output][2], node1[PortType.input][1])
print()
print('ports', ports)
conn = scene.create_connection(*ports)
print()
print('connection', conn)
def test_smoke_scene_signal_connections(scene, view, model):
mock = unittest.mock.Mock()
scene.connection_created.connect(mock)
node1 = scene.create_node(model)
node2 = scene.create_node(model)
conn = scene.create_connection(node2[PortType.output][2],
node1[PortType.input][1])
assert mock.call_count == 1
mock = unittest.mock.Mock()
scene.connection_deleted.connect(mock)
node1 = scene.create_node(model)
node2 = scene.create_node(model)
scene.delete_connection(conn)
assert mock.call_count == 1
def test_smoke_scene_signal_nodes(scene, view, model):
mock = unittest.mock.Mock()
scene.node_created.connect(mock)
node1 = scene.create_node(model)
node2 = scene.create_node(model)
assert mock.call_count == 2
mock = unittest.mock.Mock()
scene.node_deleted.connect(mock)
scene.remove_node(node1)
scene.remove_node(node2)
assert mock.call_count == 2
|
