def create(cls, name):
"""
Creates an mGui.events.Event object with the supplied name. If the named Event already exists, return it.
:param name: string name of the new Event
:return: mGui.events.Event object
"""
if not name in cls.REGISTRY:
cls.REGISTRY[name] = events.Event()
return cls.REGISTRY[name]
def test_basic_event(self):
sample_data = []
def handle(*args, **kwargs):
sample_data.append("OK")
test = events.Event()
test += handle
test()
assert "OK" in sample_data
def test_bound_derefencing(self):
sample_data = []
b = self.bound_tester()
test = events.Event()
test += b.example
test()
assert "OK" in self.bound_tester.DATA
test -= b.example
self.bound_tester.DATA.remove("OK")
test()
assert not "OK" in self.bound_tester.DATA
def test_derefencing(self):
sample_data = []
def handle(*args, **kwargs):
sample_data.append("OK")
test = events.Event()
test += handle
test()
assert "OK" in sample_data
test -= handle
sample_data.remove("OK")
test()
def test_stash(self):
sample_data = []
def handle(*args, **kwargs):
sample_data.append('OK')
class Stash(object):
pass
stash = Stash()
test = events.Event()
test += handle, stash
del handle
test()
assert 'OK' in sample_data
def test_stash_derefencing(self):
sample_data = []
def handle(*args, **kwargs):
sample_data.append('OK')
handle_id = id(handle)
class Stash(object):
pass
stash = Stash()
test = events.Event()
test += handle, stash
del handle
test()
assert 'OK' in sample_data
handle = getattr(stash, '_sh_{}'.format(handle_id))
sample_data = []
test -= handle, stash
test()
assert 'OK' not in sample_data