def session():
session = Session(services=[
"event_manager",
"component_registry",
"element_factory",
"properties",
"main_window",
"namespace",
"diagrams",
"toolbox",
"elementeditor",
"export_menu",
"tools_menu",
])
yield session
session.shutdown()
class TestCase(unittest.TestCase):
services = [
"event_manager",
"component_registry",
"element_factory",
"element_dispatcher",
"modeling_language",
"sanitizer",
]
def setUp(self):
self.session = Session(services=self.services)
self.element_factory = self.session.get_service("element_factory")
self.modeling_language = self.session.get_service("modeling_language")
assert len(list(self.element_factory.select())) == 0, list(
self.element_factory.select())
self.diagram = self.element_factory.create(UML.Diagram)
assert len(list(self.element_factory.select())) == 1, list(
self.element_factory.select())
def tearDown(self):
self.element_factory.shutdown()
self.session.shutdown()
def get_service(self, name):
return self.session.get_service(name)
def create(self, item_cls: Type[T], subject_cls=None, subject=None) -> T:
"""
Create an item with specified subject.
"""
if subject_cls is not None:
subject = self.element_factory.create(subject_cls)
item = self.diagram.create(item_cls, subject=subject)
self.diagram.canvas.update()
return item
def allow(self, line, handle, item, port=None):
"""
Glue line's handle to an item.
If port is not provided, then first port is used.
"""
if port is None and len(item.ports()) > 0:
port = item.ports()[0]
adapter = Connector(item, line)
return adapter.allow(handle, port)
def connect(self, line, handle, item, port=None):
"""
Connect line's handle to an item.
If port is not provided, then first port is used.
"""
canvas = line.canvas
assert line.canvas is item.canvas
if port is None and len(item.ports()) > 0:
port = item.ports()[0]
sink = ConnectionSink(item, port)
connector = ConnectorAspect(line, handle)
connector.connect(sink)
cinfo = canvas.get_connection(handle)
assert cinfo.connected is item
assert cinfo.port is port
def disconnect(self, line, handle):
"""
Disconnect line's handle.
"""
canvas = self.diagram.canvas
# disconnection on adapter level is performed due to callback, so
# no adapter look up here
canvas.disconnect_item(line, handle)
assert not canvas.get_connection(handle)
def get_connected(self, handle):
"""
Get item connected to line via handle.
"""
cinfo = self.diagram.canvas.get_connection(handle)
if cinfo:
return cinfo.connected
return None
def get_connection(self, handle):
"""
Get connection information.
"""
return self.diagram.canvas.get_connection(handle)
def can_group(self, parent, item):
"""
Check if an item can be grouped by parent.
"""
adapter = Group(parent, item)
return adapter.can_contain()
def group(self, parent, item):
"""
Group item within a parent.
"""
self.diagram.canvas.reparent(item, parent)
adapter = Group(parent, item)
adapter.group()
def ungroup(self, parent, item):
"""
Remove item from a parent.
"""
adapter = Group(parent, item)
adapter.ungroup()
self.diagram.canvas.reparent(item, None)
def kindof(self, cls):
"""
Find UML metaclass instances using element factory.
"""
return self.element_factory.lselect(cls)
def save(self):
"""
Save diagram into string.
"""
from gaphor.storage import storage
from gaphor.storage.xmlwriter import XMLWriter
f = StringIO()
storage.save(XMLWriter(f), factory=self.element_factory)
data = f.getvalue()
f.close()
self.element_factory.flush()
assert not list(self.element_factory.select())
assert not list(self.element_factory.lselect())
return data
def load(self, data):
"""
Load data from specified string. Update ``TestCase.diagram``
attribute to hold new loaded diagram.
"""
from gaphor.storage import storage
f = StringIO(data)
storage.load(f,
factory=self.element_factory,
modeling_language=self.modeling_language)
f.close()
self.diagram = self.element_factory.lselect(UML.Diagram)[0]
def session():
session = Session()
load_default_model(session)
yield session
session.shutdown()
def session():
session = Session()
yield session
session.shutdown()
def session():
session = Session(
services=["event_manager", "component_registry", "element_factory"])
yield session
session.shutdown()