def test_pickle_events(self):
event = EventSystem(marker)
variable = self.variable_type(event=event, value_factory=list)
changes = []
def changed(owner, variable, old_value, new_value, fromdb):
changes.append((variable, old_value, new_value, fromdb))
event.emit("start-tracking-changes", event)
event.hook("changed", changed)
variable.checkpoint()
event.emit("flush")
self.assertEquals(changes, [])
lst = variable.get()
self.assertEquals(lst, [])
self.assertEquals(changes, [])
lst.append("a")
self.assertEquals(changes, [])
event.emit("flush")
self.assertEquals(changes, [(variable, None, ["a"], False)])
del changes[:]
event.emit("object-deleted")
self.assertEquals(changes, [(variable, None, ["a"], False)])
def test_list_events():
event = EventSystem(marker)
variable = ListVariable(RawStrVariable, event=event, value_factory=list)
changes = []
def changed(owner, variable, old_value, new_value, fromdb):
changes.append((variable, old_value, new_value, fromdb))
event.emit("start-tracking-changes", event)
event.hook("changed", changed)
variable.checkpoint()
event.emit("flush")
assert changes == []
lst = variable.get()
assert lst == []
assert changes == []
lst.append("a")
assert changes == []
event.emit("flush")
assert changes == [(variable, None, ["a"], False)]
del changes[:]
event.emit("object-deleted")
assert changes == [(variable, None, ["a"], False)]
def test_pickle_events(self):
event = EventSystem(marker)
variable = self.variable_type(event=event, value_factory=list)
changes = []
def changed(owner, variable, old_value, new_value, fromdb):
changes.append((variable, old_value, new_value, fromdb))
event.emit("start-tracking-changes", event)
event.hook("changed", changed)
variable.checkpoint()
event.emit("flush")
self.assertEquals(changes, [])
lst = variable.get()
self.assertEquals(lst, [])
self.assertEquals(changes, [])
lst.append("a")
self.assertEquals(changes, [])
event.emit("flush")
self.assertEquals(changes, [(variable, None, ["a"], False)])
del changes[:]
event.emit("object-deleted")
self.assertEquals(changes, [(variable, None, ["a"], False)])
def test_weak_reference():
marker = Marker()
called = []
def callback(owner):
called.append(owner)
event = EventSystem(marker)
event.hook("event", callback)
event.emit("event")
assert called == [marker]
del called[:]
del marker
event.emit("event")
assert called == []
class EventTest(TestHelper):
def setUp(self):
TestHelper.setUp(self)
self.event = EventSystem(marker)
def test_hook_unhook_emit(self):
called1 = []
called2 = []
def callback1(owner, arg1, arg2):
called1.append((owner, arg1, arg2))
def callback2(owner, arg1, arg2, data1, data2):
called2.append((owner, arg1, arg2, data1, data2))
self.event.hook("one", callback1)
self.event.hook("one", callback1)
self.event.hook("one", callback2, 10, 20)
self.event.hook("two", callback2, 10, 20)
self.event.hook("two", callback2, 10, 20)
self.event.hook("two", callback2, 30, 40)
self.event.hook("three", callback1)
self.event.emit("one", 1, 2)
self.event.emit("two", 3, 4)
self.event.unhook("two", callback2, 10, 20)
self.event.emit("two", 3, 4)
self.event.emit("three", 5, 6)
self.assertEquals(sorted(called1), [
(marker, 1, 2),
(marker, 5, 6),
])
self.assertEquals(sorted(called2), [
(marker, 1, 2, 10, 20),
(marker, 3, 4, 10, 20),
(marker, 3, 4, 30, 40),
(marker, 3, 4, 30, 40),
])
def test_unhook_by_returning_false(self):
called = []
def callback(owner):
called.append(owner)
return len(called) < 2
self.event.hook("event", callback)
self.event.emit("event")
self.event.emit("event")
self.event.emit("event")
self.event.emit("event")
self.assertEquals(called, [marker, marker])
def test_weak_reference(self):
marker = Marker()
called = []
def callback(owner):
called.append(owner)
self.event = EventSystem(marker)
self.event.hook("event", callback)
self.event.emit("event")
self.assertEquals(called, [marker])
del called[:]
del marker
self.event.emit("event")
self.assertEquals(called, [])
class EventTest(TestHelper):
def setUp(self):
TestHelper.setUp(self)
self.event = EventSystem(marker)
def test_hook_unhook_emit(self):
called1 = []
called2 = []
def callback1(owner, arg1, arg2):
called1.append((owner, arg1, arg2))
def callback2(owner, arg1, arg2, data1, data2):
called2.append((owner, arg1, arg2, data1, data2))
self.event.hook("one", callback1)
self.event.hook("one", callback1)
self.event.hook("one", callback2, 10, 20)
self.event.hook("two", callback2, 10, 20)
self.event.hook("two", callback2, 10, 20)
self.event.hook("two", callback2, 30, 40)
self.event.hook("three", callback1)
self.event.emit("one", 1, 2)
self.event.emit("two", 3, 4)
self.event.unhook("two", callback2, 10, 20)
self.event.emit("two", 3, 4)
self.event.emit("three", 5, 6)
self.assertEquals(sorted(called1), [
(marker, 1, 2),
(marker, 5, 6),
])
self.assertEquals(sorted(called2), [
(marker, 1, 2, 10, 20),
(marker, 3, 4, 10, 20),
(marker, 3, 4, 30, 40),
(marker, 3, 4, 30, 40),
])
def test_unhook_by_returning_false(self):
called = []
def callback(owner):
called.append(owner)
return len(called) < 2
self.event.hook("event", callback)
self.event.emit("event")
self.event.emit("event")
self.event.emit("event")
self.event.emit("event")
self.assertEquals(called, [marker, marker])
def test_weak_reference(self):
marker = Marker()
called = []
def callback(owner):
called.append(owner)
self.event = EventSystem(marker)
self.event.hook("event", callback)
self.event.emit("event")
self.assertEquals(called, [marker])
del called[:]
del marker
self.event.emit("event")
self.assertEquals(called, [])