def test_when_waits_for_one_deferreds_to_be_rejected_1(self):
cb = {'ok': [None, None], 'err': [None, None]}
def _cb(key, ok, err):
cb['ok'][key] = ok
cb['err'][key] = err
def _call(key, *args):
cb['ok'][key](*args)
def _call2(key, *args):
cb['err'][key](*args)
self.d.then = mock.MagicMock(side_effect=partial(_cb, 0))
self.d.resolve = mock.MagicMock(side_effect=partial(_call, 0))
d2 = mock.Mock()
d2.then = mock.MagicMock(side_effect=partial(_cb, 1))
d2.reject = mock.MagicMock(side_effect=partial(_call2, 1))
p = when(self.d, d2)
self.assertFalse(p.resolved)
self.assertFalse(p.rejected)
self.assertFalse(p.cancelled)
self.d.resolve(1)
self.assertFalse(p.resolved)
self.assertFalse(p.rejected)
self.assertFalse(p.cancelled)
d2.reject(2)
self.assertFalse(p.resolved)
self.assertTrue(p.rejected)
self.assertFalse(p.cancelled)
def test_when_expects_any_number_of_input_arguments(self):
err = False
try:
when(1)
when(1, 2)
when(1, 2, 3)
when(1, 2, 3, 4)
except TypeError:
err = True
self.assertFalse(err)
def test_calls_fail_callbacks_once_with_only_one_failed_response_3(self):
cb = {'ok': [None, None], 'err': [None, None]}
def _cb(key, ok, err):
cb['ok'][key] = ok
cb['err'][key] = err
def _call(key, *args, **kwargs):
cb['ok'][key](*args, **kwargs)
def _call2(key, *args, **kwargs):
cb['err'][key](*args, **kwargs)
self.d.then = mock.MagicMock(side_effect=partial(_cb, 0))
self.d.resolve = mock.MagicMock(side_effect=partial(_call, 0))
d2 = mock.Mock()
d2.then = mock.MagicMock(side_effect=partial(_cb, 1))
d2.reject = mock.MagicMock(side_effect=partial(_call2, 1))
c = mock.MagicMock()
p = when(self.d, d2)
self.assertFalse(p.resolved)
self.assertFalse(p.rejected)
self.assertFalse(p.cancelled)
self.d.resolve(1, foo=2)
self.assertFalse(p.resolved)
self.assertFalse(p.rejected)
self.assertFalse(p.cancelled)
d2.reject(2, foo=3)
self.assertFalse(p.resolved)
self.assertTrue(p.rejected)
self.assertFalse(p.cancelled)
p.then(c, c)
c.assert_called_once_with(2, foo=3)
def test_calls_done_callbacks_with_all_responses_ordered(self):
cb = {'ok': [None, None], 'err': [None, None]}
def _cb(key, ok, err):
cb['ok'][key] = ok
cb['err'][key] = err
def _call(key, *args, **kwargs):
cb['ok'][key](*args, **kwargs)
self.d.then = mock.MagicMock(side_effect=partial(_cb, 0))
self.d.resolve = mock.MagicMock(side_effect=partial(_call, 0))
d2 = mock.Mock()
d2.then = mock.MagicMock(side_effect=partial(_cb, 1))
d2.resolve = mock.MagicMock(side_effect=partial(_call, 1))
c = mock.MagicMock()
p = when(self.d, d2)
self.assertFalse(p.resolved)
self.assertFalse(p.rejected)
self.assertFalse(p.cancelled)
self.d.resolve(1, foo=1)
self.assertFalse(p.resolved)
self.assertFalse(p.rejected)
self.assertFalse(p.cancelled)
d2.resolve(2)
self.assertTrue(p.resolved)
self.assertFalse(p.rejected)
self.assertFalse(p.cancelled)
p.then(c, c)
c.assert_called_once_with(((1, ), {'foo': 1}), ((2, ), {}))
def test_when_registers_then_callbacks(self):
when(self.d)
self.d.then.assert_called_once_with(IsA(partial), IsCallable())
def test_when_resolves_non_deferreds_immidiately(self):
a = when(1)
self.assertTrue(a.resolved)
self.assertFalse(a.rejected)
self.assertFalse(a.cancelled)
def test_when_returns_instance_of_Promise(self):
self.assertTrue(isinstance(when(), Promise))