def test_callback_result_transformation():
d = succeed(5)
d.add_callback(lambda r: r + 5)
assert d.result == 10
d.add_callback(lambda r: succeed(r + 5))
assert d.result == 15
def test_callback_result_transformation():
d = succeed(5)
d.add_callback(lambda r: r + 5)
assert d.result == 10
d.add_callback(lambda r: succeed(r + 5))
assert d.result == 15
def test_deferred_list_with_already_resolved_deferred_values():
dl = DeferredList([
1,
succeed(2),
succeed(3)
])
assert dl.called
assert dl.result == [1, 2, 3]
def test_nested_succeed():
d = succeed(succeed('123'))
assert d.result == "123"
assert d.called
assert not d.callbacks
d = succeed(succeed(succeed('123')))
assert d.result == "123"
assert d.called
assert not d.callbacks
def test_nested_succeed():
d = succeed(succeed('123'))
assert d.result == "123"
assert d.called
assert not d.callbacks
d = succeed(succeed(succeed('123')))
assert d.result == "123"
assert d.called
assert not d.callbacks
class DeepData(object):
a = 'Already Been Done'
b = 'Boring'
c = ['Contrived', None, succeed('Confusing')]
def deeper(self):
return [Data(), None, succeed(Data())]
def test_deferred_callback_returns_another_deferred():
d = Deferred()
d2 = Deferred()
d.add_callback(lambda r: succeed(r + 5).add_callback(lambda v: v + 5))
d.add_callback(lambda r: d2)
d.callback(5)
assert d.result is d2
assert d.paused
assert d.called
d2.callback(7)
assert d.result == 7
assert d2.result == 7
def test_deferred_callback_returns_another_deferred():
d = Deferred()
d2 = Deferred()
d.add_callback(lambda r: succeed(r + 5).add_callback(lambda v: v + 5))
d.add_callback(lambda r: d2)
d.callback(5)
assert d.result is d2
assert d.paused
assert d.called
d2.callback(7)
assert d.result == 7
assert d2.result == 7
def test_deferred_list_fails():
d1 = Deferred()
d2 = Deferred()
d3 = Deferred()
dl = DeferredList([1, succeed(2), d1, d2, d3])
assert not dl.called
e1 = Exception('d1 failed')
d1.errback(e1)
d2.errback(Exception('d2 failed'))
d3.callback('hello')
assert dl.called
assert isinstance(dl.result, DeferredException)
assert dl.result.value == e1
def test_deferred_list_fails():
d1 = Deferred()
d2 = Deferred()
d3 = Deferred()
dl = DeferredList([
1,
succeed(2),
d1,
d2,
d3
])
assert not dl.called
e1 = Exception('d1 failed')
d1.errback(e1)
d2.errback(Exception('d2 failed'))
d3.callback('hello')
assert dl.called
assert isinstance(dl.result, DeferredException)
assert dl.result.value == e1
def test_succeed():
d = succeed("123")
assert d.result == "123"
assert d.called
assert not d.callbacks
def promise(self):
return succeed(Data())
def promise(self):
return succeed('i shouldn\'nt work')
def deeper(self):
return [Data(), None, succeed(Data())]
def promise(self):
return succeed(Data())
def pic(self, size=50):
return succeed('Pic of size: {}'.format(size))
def f(self):
return succeed('Fish')
def f(self):
return succeed('Fish')
def pic(self, size=50):
return succeed('Pic of size: {}'.format(size))
def test_succeed():
d = succeed("123")
assert d.result == "123"
assert d.called
assert not d.callbacks
def deeper(self):
return [Data(), None, succeed(Data())]
def test_deferred_list_with_already_resolved_deferred_values():
dl = DeferredList([1, succeed(2), succeed(3)])
assert dl.called
assert dl.result == [1, 2, 3]
def promise(self):
return succeed('i shouldn\'nt work')
