def test_double_b_alt_successful_transfer(self):
ch = self.chan()
def thread():
ch.b_put(c.b_alt([ch, 'success']))
threading.Thread(target=thread).start()
self.assertEqual(c.b_alt(ch), ('success', ch))
self.assertEqual(ch.b_get(), (True, ch))
def test_multiple_successful_get_on_initial_request(self):
successGetCh = self.chan()
cancelGetCh = self.chan()
cancelPutCh = self.chan()
successGetCh.f_put('success')
time.sleep(0.1)
self.assertEqual(
c.b_alt(cancelGetCh,
successGetCh, [cancelPutCh, 'noSend'],
priority=True), ('success', successGetCh))
self._confirm_chs_not_closed(successGetCh, cancelGetCh, cancelPutCh)
def test_close_before_put(self):
closedPutCh = self.chan(1)
cancelPutCh = self.chan(1)
cancelPutCh.b_put('fill buffer')
cancelGetCh = self.chan(1)
closedPutCh.close()
self.assertEqual(
c.b_alt(cancelGetCh, [closedPutCh, 'noSend'],
[cancelPutCh, 'noSend'],
priority=True), (False, closedPutCh))
self.assertIsNone(closedPutCh.b_get())
def test_multiple_successful_get_on_initial_request(self):
successGetCh = self.chan(1)
successGetCh.b_put('success')
cancelGetCh = self.chan(1)
cancelPutCh = self.chan(1)
cancelPutCh.b_put('fill buffer')
self.assertEqual(
c.b_alt(cancelGetCh,
successGetCh, [cancelPutCh, 'noSend'],
priority=True), ('success', successGetCh))
def test_single_successful_get_on_wait(self):
ch = self.chan()
def thread():
time.sleep(0.1)
ch.f_put('success')
ch.f_put('notClosed')
threading.Thread(target=thread).start()
self.assertEqual(c.b_alt(ch), ('success', ch))
self.assertEqual(ch.b_get(), 'notClosed')
def test_close_before_put(self):
closedPutCh = self.chan()
cancelPutCh = self.chan()
cancelGetCh = self.chan()
closedPutCh.close()
self.assertEqual(
c.b_alt(cancelGetCh, [closedPutCh, 'noSend'],
[cancelPutCh, 'noSend'],
priority=True), (False, closedPutCh))
self.assertIsNone(closedPutCh.b_get())
self._confirm_chs_not_closed(cancelPutCh, cancelGetCh)
def test_multiple_successful_put_on_intial_request(self):
successPutCh = self.chan(1)
cancelGetCh = self.chan(1)
cancelPutCh = self.chan(1)
cancelPutCh.b_put('fill buffer')
altValue = c.b_alt(cancelGetCh, [cancelPutCh, 'noSend'],
[successPutCh, 'success'],
priority=True)
self.assertEqual(altValue, (True, successPutCh))
self.assertEqual(successPutCh.b_get(), 'success')
def test_multiple_successful_get_on_wait(self):
successGetCh = self.chan(1)
cancelGetCh = self.chan(1)
cancelPutCh = self.chan(1)
cancelPutCh.b_put('fill buffer')
def thread():
time.sleep(0.1)
successGetCh.b_put('success')
threading.Thread(target=thread).start()
self.assertEqual(
c.b_alt(cancelGetCh,
successGetCh, [cancelPutCh, 'noSend'],
priority=True), ('success', successGetCh))
def test_xform_state_is_not_modified_when_canceled(self):
xformCh = self.chan(1, xf.take(2))
xformCh.b_put('firstTake')
ch = self.chan()
def thread():
time.sleep(0.1)
ch.b_put('altValue')
threading.Thread(target=thread).start()
self.assertEqual(
c.b_alt(ch, [xformCh, 'do not modify xform state'], priority=True),
('altValue', ch))
xformCh.f_put('secondTake')
xformCh.f_put('dropMe')
self.assertEqual(b_list(xformCh), ['firstTake', 'secondTake'])
def test_close_while_waiting_get(self):
closeGetCh = self.chan()
cancelGetCh = self.chan()
cancelPutCh = self.chan()
def thread():
time.sleep(0.1)
closeGetCh.close()
threading.Thread(target=thread).start()
self.assertEqual(
c.b_alt(cancelGetCh,
closeGetCh, [cancelPutCh, 'noSend'],
priority=True), (None, closeGetCh))
self.assertIsNone(closeGetCh.b_get())
self._confirm_chs_not_closed(cancelPutCh, cancelGetCh)
def test_close_while_waiting_put(self):
closePutCh = self.chan(1)
closePutCh.b_put('fill buffer')
cancelGetCh = self.chan(1)
cancelPutCh = self.chan(1)
cancelPutCh.b_put('fill buffer')
def thread():
time.sleep(0.1)
closePutCh.close()
closePutCh.b_get()
threading.Thread(target=thread).start()
self.assertEqual(
c.b_alt(cancelGetCh, [closePutCh, 'success'],
[cancelPutCh, 'noSend'],
priority=True), (True, closePutCh))
self.assertEqual(closePutCh.b_get(), 'success')
self.assertIsNone(closePutCh.b_get())
def thread():
successPutCh.b_put(
c.b_alt(cancelGetCh, [successPutCh, 'success'],
[cancelPutCh, 'noSend'],
priority=True))
def test_b_alt_default_when_available(self):
ch = chan(1)
ch.b_put('success')
self.assertEqual(c.b_alt(ch, default='ignore me'), ('success', ch))
def test_single_successful_get_on_initial_request(self):
ch = self.chan()
ch.f_put('success')
ch.f_put('notClosed')
self.assertEqual(c.b_alt(ch), ('success', ch))
self.assertEqual(ch.b_get(), 'notClosed')
def test_no_operations(self):
with self.assertRaises(ValueError):
c.b_alt()
def thread():
time.sleep(0.1)
ch.b_put(c.b_alt([ch, 'success']))
def thread():
ch.b_put(c.b_alt([ch, 'success']))
def test_get_put_same_channel(self):
ch = self.chan()
with self.assertRaises(ValueError):
c.b_alt(ch, [ch, 'success'], priority=True)
def test_double_b_alt_successful_transfer(self):
ch = self.chan(1)
self.assertEqual(c.b_alt([ch, 'success']), (True, ch))
self.assertEqual(c.b_alt(ch), ('success', ch))
def test_b_alt_default_when_unavailable(self):
ch = chan()
self.assertEqual(c.b_alt(ch, default='success'),
('success', 'default'))
