def test_when_closed(self):
tor = FakeTorController()
a = FakeRouter('$E11D2B2269CC25E67CA6C9FB5843497539A74FD0', 'a')
b = FakeRouter('$50DD343021E509EB3A5A7FD0D8A4F8364AFBDCB5', 'b')
c = FakeRouter('$253DFF1838A2B7782BE7735F74E50090D46CA1BC', 'c')
tor.routers['$E11D2B2269CC25E67CA6C9FB5843497539A74FD0'] = a
tor.routers['$50DD343021E509EB3A5A7FD0D8A4F8364AFBDCB5'] = b
tor.routers['$253DFF1838A2B7782BE7735F74E50090D46CA1BC'] = c
circuit = Circuit(tor)
circuit.listen(tor)
circuit.update(
'123 EXTENDED $E11D2B2269CC25E67CA6C9FB5843497539A74FD0=eris,$50DD343021E509EB3A5A7FD0D8A4F8364AFBDCB5=venus,$253DFF1838A2B7782BE7735F74E50090D46CA1BC=chomsky PURPOSE=GENERAL'
.split())
d0 = circuit.when_closed()
self.assertFalse(d0.called)
circuit.update(
'123 BUILT $E11D2B2269CC25E67CA6C9FB5843497539A74FD0=eris,$50DD343021E509EB3A5A7FD0D8A4F8364AFBDCB5=venus,$253DFF1838A2B7782BE7735F74E50090D46CA1BC=chomsky PURPOSE=GENERAL'
.split())
circuit.update('123 CLOSED'.split())
d1 = circuit.when_closed()
self.assertTrue(d0 is not d1)
self.assertTrue(d0.called)
self.assertTrue(d1.called)
