def test_bound_method_ids_are_stable(self):
b = self.bound_tester()
b2 = self.bound_tester()
wr = events.WeakMethod(b.example)
wr2 = events.WeakMethod(b.example)
wr3 = events.WeakMethod(b2.example)
wr4 = events.WeakMethod(b2.example)
assert wr.ID == wr2.ID
assert wr3.ID == wr4.ID
assert wr.ID != wr4.ID
def test_free_method_ids_are_stable(self):
def example(*args, **kwargs):
return -99
def example2(*args, **kwargs):
return -99
wr = events.WeakMethod(example)
wr2 = events.WeakMethod(example)
wr3 = events.WeakMethod(example2)
wr4 = events.WeakMethod(example2)
assert wr.ID == wr2.ID
assert wr3.ID == wr4.ID
assert wr.ID != wr4.ID
def test_free_method_excepts_on_dead_ref(self):
def example(*args, **kwargs):
return -99
wr = events.WeakMethod(example)
del (example)
self.assertRaises(events.DeadReferenceError, wr)
def test_bound_method_DOES_NOT_except_on_dead_method_ref(self):
'''
you can't 'delete' a bound method, even if you overwrite it's name
in a particular instance. bound methods work like descriptors under
the hood.
'''
b = self.bound_tester()
wr = events.WeakMethod(b.example)
b.example = lambda x: 121
try:
wr()
except events.DeadReferenceError:
self.fail('this should not raise')
def test_bound_method_excepts_on_dead_ref(self):
b = self.bound_tester()
wr = events.WeakMethod(b.example)
del (b)
self.assertRaises(events.DeadReferenceError, wr)
def test_bound_method_works(self):
b = self.bound_tester()
wr = events.WeakMethod(b.example)
assert wr() == 111
def test_bound_method(self):
b = self.bound_tester()
wr = events.WeakMethod(b.example)
assert isinstance(wr, events.WeakMethodBound)
def test_free_method_works(self):
def example(*args, **kwargs):
return -99
wr = events.WeakMethod(example)
assert wr() == -99
def test_free_method(self):
def example(*args, **kwargs):
return -99
wr = events.WeakMethod(example)
assert isinstance(wr, events.WeakMethodFree)