def test_get_free_set_is_freed(self):
target = worker.ValueHolder("123", None)
target.get()
target.free()
target.set("123")
self.assertRaises(ValueError, target.get)
self.assertIsNone(target._value)
def test_getset(self):
target = worker.ValueHolder("123", None)
d = target.get()
target.set("value")
actual = extract(d)
self.assertEqual("value", actual)
def test_get_free_set(self):
target = worker.ValueHolder("123", None)
d = target.get()
f = target.free()
self.assertFalse(f.called)
target.set("123")
self.assertEqual("123", extract(d))
self.assertTrue(f.called)
def test_cancel(self):
cancelled = defer.Deferred()
def cancel():
cancelled.callback(True)
target = worker.ValueHolder("123", cancel)
d = target.get()
d.cancel()
self.assertRaises(CancelledError, extract, d)
actual = extract(cancelled)
self.assertEqual(True, actual)
def test_free_cancel(self):
cancelled = defer.Deferred()
def cancel():
cancelled.callback(True)
target = worker.ValueHolder("123", cancel)
f = target.free()
self.assertRaises(ValueError, target.get)
self.assertIsNone(target._value)
self.assertTrue(f.called)
self.assertEqual(True, extract(cancelled))
def test_get_free_cancel(self):
cancelled = defer.Deferred()
def cancel():
cancelled.callback(True)
target = worker.ValueHolder("123", cancel)
d = target.get()
f = target.free()
self.assertFalse(f.called)
d.cancel()
self.assertRaises(CancelledError, extract, d)
self.assertTrue(f.called)
self.assertTrue(extract(cancelled))
def test_cancel2(self):
cancelled = defer.Deferred()
def cancel():
cancelled.callback(True)
target = worker.ValueHolder("123", cancel)
d1 = target.get()
d2 = target.get()
d1.cancel()
self.assertEqual(False, cancelled.called,
"Transfer cancelled to early.")
self.assertRaises(CancelledError, extract, d1)
d2.cancel()
self.assertRaises(CancelledError, extract, d2)
actual = extract(cancelled)
self.assertEqual(True, actual)
