def element_factory():
event_manager = EventManager()
event_manager.subscribe(handler)
clear_events()
factory = ElementFactory(event_manager)
yield factory
clear_events()
def element_factory():
event_manager = EventManager()
element_dispatcher = ElementDispatcher(event_manager, UMLModelingLanguage())
element_factory = ElementFactory(event_manager, element_dispatcher)
yield element_factory
element_factory.shutdown()
element_dispatcher.shutdown()
event_manager.shutdown()
def test_transactions(self):
event_manager = EventManager()
undo_manager = UndoManager(event_manager)
assert not undo_manager._current_transaction
# undo_manager.begin_transaction()
tx = Transaction(event_manager)
# assert undo_manager._transaction_depth == 1
assert undo_manager._current_transaction
current = undo_manager._current_transaction
# undo_manager.begin_transaction()
tx2 = Transaction(event_manager)
# assert undo_manager._transaction_depth == 2
# assert undo_manager._transaction_depth == 1
assert undo_manager._current_transaction is current
# undo_manager.commit_transaction()
tx2.commit()
# assert undo_manager._transaction_depth == 1
assert undo_manager._current_transaction is current
# undo_manager.commit_transaction()
tx.commit()
# assert undo_manager._transaction_depth == 0
assert undo_manager._current_transaction is None
undo_manager.shutdown()
def test_undo_attribute(self):
from gaphor.core.modeling import Element
from gaphor.core.modeling.properties import attribute
event_manager = EventManager()
undo_manager = UndoManager(event_manager)
element_factory = ElementFactory(event_manager)
class A(Element):
attr = attribute("attr", bytes, default="default")
a = element_factory.create(A)
assert a.attr == "default", a.attr
undo_manager.begin_transaction()
a.attr = "five"
undo_manager.commit_transaction()
assert a.attr == "five"
undo_manager.undo_transaction()
assert a.attr == "default", a.attr
undo_manager.redo_transaction()
assert a.attr == "five"
undo_manager.shutdown()
def test_element_factory_undo(self):
from gaphor.core.modeling import Element
event_manager = EventManager()
undo_manager = UndoManager(event_manager)
element_factory = ElementFactory(event_manager)
undo_manager.begin_transaction()
p = element_factory.create(Element)
assert undo_manager._current_transaction
assert undo_manager._current_transaction._actions
assert undo_manager.can_undo()
undo_manager.commit_transaction()
assert undo_manager.can_undo()
assert element_factory.size() == 1
undo_manager.undo_transaction()
assert not undo_manager.can_undo()
assert undo_manager.can_redo()
assert element_factory.size() == 0
undo_manager.redo_transaction()
assert undo_manager.can_undo()
assert not undo_manager.can_redo()
assert element_factory.size() == 1
assert element_factory.lselect()[0] is p
undo_manager.shutdown()
def __init__(self, event_manager: EventManager, element_factory: ElementFactory):
self.event_manager = event_manager
self.element_factory = element_factory
self.model = Gtk.TreeStore.new([object])
event_manager.subscribe(self.refresh)
event_manager.subscribe(self._on_element_create)
event_manager.subscribe(self._on_element_delete)
event_manager.subscribe(self._on_association_set)
event_manager.subscribe(self._on_attribute_change)
def test_undo_association_1_n(self):
from gaphor.core.modeling import Element
from gaphor.core.modeling.properties import association
event_manager = EventManager()
undo_manager = UndoManager(event_manager)
element_factory = ElementFactory(event_manager)
class A(Element):
pass
class B(Element):
pass
A.one = association("one", B, lower=0, upper=1, opposite="two")
B.two = association("two", A, lower=0, upper="*", opposite="one")
a1 = element_factory.create(A)
a2 = element_factory.create(A)
b1 = element_factory.create(B)
element_factory.create(B)
undo_manager.begin_transaction()
b1.two = a1
undo_manager.commit_transaction()
assert a1 in b1.two
assert b1 is a1.one
assert len(undo_manager._undo_stack) == 1
assert len(undo_manager._undo_stack[0]._actions) == 2, undo_manager._undo_stack[
0
]._actions
undo_manager.undo_transaction()
assert len(b1.two) == 0
assert a1.one is None
assert undo_manager.can_redo()
assert len(undo_manager._redo_stack) == 1
assert len(undo_manager._redo_stack[0]._actions) == 2, undo_manager._redo_stack[
0
]._actions
undo_manager.redo_transaction()
assert a1 in b1.two
assert b1 is a1.one
undo_manager.begin_transaction()
b1.two = a2
undo_manager.commit_transaction()
assert a1 in b1.two
assert a2 in b1.two
assert b1 is a1.one
assert b1 is a2.one
undo_manager.shutdown()
def test_redo_stack(self):
from gaphor.core.modeling import Element
event_manager = EventManager()
undo_manager = UndoManager(event_manager)
element_factory = ElementFactory(event_manager)
undo_manager.begin_transaction()
p = element_factory.create(Element)
assert undo_manager._current_transaction
assert undo_manager._current_transaction._actions
assert undo_manager.can_undo()
undo_manager.commit_transaction()
assert undo_manager.can_undo()
assert element_factory.size() == 1, element_factory.size()
with Transaction(event_manager):
element_factory.create(Element)
assert undo_manager.can_undo()
assert not undo_manager.can_redo()
assert element_factory.size() == 2
undo_manager.undo_transaction()
assert undo_manager.can_undo()
assert 1 == len(undo_manager._undo_stack)
assert 1 == len(undo_manager._redo_stack)
assert undo_manager.can_redo()
assert element_factory.size() == 1
undo_manager.undo_transaction()
assert not undo_manager.can_undo()
assert undo_manager.can_redo()
assert 0 == len(undo_manager._undo_stack)
assert 2 == len(undo_manager._redo_stack)
# assert element_factory.size() == 0
undo_manager.redo_transaction()
assert 1 == len(undo_manager._undo_stack)
assert 1 == len(undo_manager._redo_stack)
assert undo_manager.can_undo()
assert undo_manager.can_redo()
assert element_factory.size() == 1
undo_manager.redo_transaction()
assert undo_manager.can_undo()
assert not undo_manager.can_redo()
assert element_factory.size() == 2
assert p in element_factory.lselect()
undo_manager.shutdown()
def test_undo_association_1_x(self):
from gaphor.core.modeling import Element
from gaphor.core.modeling.properties import association
event_manager = EventManager()
undo_manager = UndoManager(event_manager)
element_factory = ElementFactory(event_manager)
class A(Element):
pass
class B(Element):
pass
A.one = association("one", B, 0, 1, opposite="two")
B.two = association("two", A, 0, 1)
a = element_factory.create(A)
b = element_factory.create(B)
assert a.one is None
assert b.two is None
undo_manager.begin_transaction()
a.one = b
undo_manager.commit_transaction()
assert a.one is b
assert b.two is a
assert len(undo_manager._undo_stack) == 1
assert len(undo_manager._undo_stack[0]._actions) == 2, undo_manager._undo_stack[
0
]._actions
undo_manager.undo_transaction()
assert a.one is None
assert b.two is None
assert undo_manager.can_redo()
assert len(undo_manager._redo_stack) == 1
assert len(undo_manager._redo_stack[0]._actions) == 2, undo_manager._redo_stack[
0
]._actions
undo_manager.redo_transaction()
assert len(undo_manager._undo_stack) == 1
assert len(undo_manager._undo_stack[0]._actions) == 2, undo_manager._undo_stack[
0
]._actions
assert b.two is a
assert a.one is b
undo_manager.shutdown()
def test_verifier():
factory = ElementFactory(EventManager())
c = factory.create(UML.Class)
p = factory.create(UML.Property)
c.ownedAttribute = p
assert not orphan_references(factory)
# Now create a separate item, not part of the factory:
m = UML.Comment(id="acd123")
m.annotatedElement = c
assert m in c.comment
assert orphan_references(factory)
def test_not_in_transaction(self):
event_manager = EventManager()
undo_manager = UndoManager(event_manager)
action = object()
undo_manager.add_undo_action(action)
assert undo_manager._current_transaction is None
undo_manager.begin_transaction()
undo_manager.add_undo_action(action)
assert undo_manager._current_transaction
assert undo_manager.can_undo()
assert len(undo_manager._current_transaction._actions) == 1
undo_manager.shutdown()
def test_uml_associations(self):
from gaphor.core.modeling.event import AssociationUpdated
from gaphor.core.modeling.properties import association, derivedunion
from gaphor.UML import Element
event_manager = EventManager()
undo_manager = UndoManager(event_manager)
element_factory = ElementFactory(event_manager)
class A(Element):
is_unlinked = False
def unlink(self):
self.is_unlinked = True
Element.unlink(self)
A.a1 = association("a1", A, upper=1)
A.a2 = association("a2", A, upper=1)
A.b1 = association("b1", A, upper="*")
A.b2 = association("b2", A, upper="*")
A.b3 = association("b3", A, upper=1)
A.derived_a = derivedunion("derived_a", A, 0, 1, A.a1, A.a2)
A.derived_b = derivedunion("derived_b", A, 0, "*", A.b1, A.b2, A.b3)
events = []
@event_handler(AssociationUpdated)
def handler(event, events=events):
events.append(event)
event_manager.subscribe(handler)
try:
a = element_factory.create(A)
undo_manager.begin_transaction()
a.a1 = element_factory.create(A)
undo_manager.commit_transaction()
assert (
len(events) == 2
), events # both AssociationSet and DerivedSet events
assert events[0].property is A.a1
assert undo_manager.can_undo()
undo_manager.undo_transaction()
assert not undo_manager.can_undo()
assert undo_manager.can_redo()
assert len(events) == 4, events
assert events[2].property is A.a1
finally:
event_manager.unsubscribe(handler)
undo_manager.shutdown()
def test_element_factory_rollback(self):
from gaphor.core.modeling import Element
event_manager = EventManager()
undo_manager = UndoManager(event_manager)
element_factory = ElementFactory(event_manager)
undo_manager.begin_transaction()
element_factory.create(Element)
assert undo_manager._current_transaction
assert undo_manager._current_transaction._actions
assert undo_manager.can_undo()
undo_manager.rollback_transaction()
assert not undo_manager.can_undo()
assert element_factory.size() == 0
undo_manager.shutdown()
def test_actions(self):
undone = [0]
def undo_action(undone=undone):
undone[0] = 1
undo_manager.add_undo_action(redo_action)
def redo_action(undone=undone):
undone[0] = -1
undo_manager.add_undo_action(undo_action)
event_manager = EventManager()
undo_manager = UndoManager(event_manager)
# undo_manager.begin_transaction()
tx = Transaction(event_manager)
undo_manager.add_undo_action(undo_action)
assert undo_manager._current_transaction
assert undo_manager.can_undo()
assert len(undo_manager._current_transaction._actions) == 1
# undo_manager.commit_transaction()
tx.commit()
undo_manager.undo_transaction()
assert not undo_manager.can_undo(), undo_manager._undo_stack
assert undone[0] == 1, undone
undone[0] = 0
assert undo_manager.can_redo(), undo_manager._redo_stack
undo_manager.redo_transaction()
assert not undo_manager.can_redo()
assert undo_manager.can_undo()
assert undone[0] == -1, undone
undo_manager.shutdown()
def test_transactions(self):
event_manager = EventManager()
undo_manager = UndoManager(event_manager)
assert not undo_manager._current_transaction
tx = Transaction(event_manager)
assert undo_manager._current_transaction
current = undo_manager._current_transaction
tx2 = Transaction(event_manager)
assert undo_manager._current_transaction is current
tx2.commit()
assert undo_manager._current_transaction is current
tx.commit()
assert undo_manager._current_transaction is None
undo_manager.shutdown()
def event_manager():
event_manager = EventManager()
event_manager.subscribe(handle_begins)
event_manager.subscribe(handle_commits)
event_manager.subscribe(handle_rollback)
del begins[:]
del commits[:]
del rollbacks[:]
yield event_manager
event_manager.unsubscribe(handle_begins)
event_manager.unsubscribe(handle_commits)
event_manager.unsubscribe(handle_rollback)
def event_manager():
return EventManager()
def factory():
event_manager = EventManager()
return ElementFactory(event_manager)
def element_factory():
event_manager = EventManager()
element_factory = ElementFactory()
yield element_factory
element_factory.shutdown()
event_manager.shutdown()
