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from circuits import Component, Manager
from circuits.core.handlers import handler
"""Component Setup Tests
Tests that event handlers of a Component are
automatically registered as event handlers.
"""
class App(Component):
def test(self, event, *args, **kwargs):
pass
class A(Component):
pass
class B(Component):
informed = False
@handler('prepare_unregister', channel='*')
def _on_prepare_unregister(self, event, c):
if event.in_subtree(self):
self.informed = True
class Base(Component):
channel = 'base'
class C(Base):
channel = 'c'
def test_basic():
m = Manager()
app = App()
app.register(m)
assert app.test in app._handlers.get('test', set())
app.unregister()
while len(m):
m.flush()
assert not m._handlers
def test_complex():
m = Manager()
a = A()
b = B()
a.register(m)
b.register(a)
assert a in m
assert a.root == m
assert a.parent == m
assert b in a
assert b.root == m
assert b.parent == a
a.unregister()
while len(m):
m.flush()
assert b.informed
assert a not in m
assert a.root == a
assert a.parent == a
assert b in a
assert b.root == a
assert b.parent == a
def test_subclassing_with_custom_channel():
base = Base()
assert base.channel == 'base'
c = C()
assert c.channel == 'c'
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