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# Module: test_component_setup
# Date: 23rd February 2010
# Author: James Mills, prologic at shortcircuit dot net dot au
from circuits.core.handlers import handler
"""Component Setup Tests
Tests that event handlers of a Component are
automatically registered as event handlers.
"""
from circuits import Component, Manager
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 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 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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