def test_callback_resolution_weaving_2():
d = Deferred()
d.add_callbacks(lambda r: fail(Exception(r + "b")), lambda e: e.value.args[0] + 'w')
d.add_callbacks(lambda e: Exception(e + "x"), lambda e: e.value.args[0] + "c")
d.add_callbacks(lambda r: Exception(r + "d"), lambda e: e.value.args[0] + 'y')
d.add_callbacks(lambda r: fail(ValueError(r + "z")), lambda e: e.value.args[0] + 'e')
d.errback(Exception('v'))
assert isinstance(d.result, DeferredException)
assert isinstance(d.result.value, ValueError)
assert d.result.value.args[0] == "vwxyz"
def test_fail():
e = Exception('failed')
d = fail(e)
assert isinstance(d.result, DeferredException)
assert d.result.value == e
assert d.called
assert not d.callbacks
def test_callback_resolution_weaving_2():
d = Deferred()
d.add_callbacks(lambda r: fail(Exception(r + "b")),
lambda e: e.value.args[0] + 'w')
d.add_callbacks(lambda e: Exception(e + "x"),
lambda e: e.value.args[0] + "c")
d.add_callbacks(lambda r: Exception(r + "d"),
lambda e: e.value.args[0] + 'y')
d.add_callbacks(lambda r: fail(ValueError(r + "z")),
lambda e: e.value.args[0] + 'e')
d.errback(Exception('v'))
assert isinstance(d.result, DeferredException)
assert isinstance(d.result.value, ValueError)
assert d.result.value.args[0] == "vwxyz"
def test_fail():
e = Exception('failed')
d = fail(e)
assert isinstance(d.result, DeferredException)
assert d.result.value == e
assert d.called
assert not d.callbacks
def test_callback_resolution():
d = Deferred()
d.add_callback(lambda r: fail(Exception(r + "b")))
d.add_errback(lambda e: e.value.args[0] + "c")
d.add_callbacks(lambda r: r + "d", lambda e: e.value.args[0] + 'f')
d.callback("a")
assert d.result == "abcd"
def test_fail_none_catches_exception():
e = Exception('will be raised')
try:
raise e
except:
d = fail()
assert d.called
assert isinstance(d.result, DeferredException)
assert d.result.value == e
def test_fail_none_catches_exception():
e = Exception('will be raised')
try:
raise e
except:
d = fail()
assert d.called
assert isinstance(d.result, DeferredException)
assert d.result.value == e
def test_callback_resolution():
d = Deferred()
d.add_callback(lambda r: fail(Exception(r + "b")))
d.add_errback(lambda e: e.value.args[0] + "c")
d.add_callbacks(lambda r: r + "d", lambda e: e.value.args[0] + 'f')
d.callback("a")
assert d.result == "abcd"
def test_callback_resolution_weaving():
d = Deferred()
d.add_callbacks(lambda r: fail(Exception(r + "b")), lambda e: e.value.args[0] + 'w')
d.add_callbacks(lambda e: Exception(e + "x"), lambda e: e.value.args[0] + "c")
d.add_callbacks(lambda r: Exception(r + "d"), lambda e: e.value.args[0] + 'y')
d.add_callbacks(lambda r: r + "z", lambda e: e.value.args[0] + 'e')
d.callback("a")
assert d.result == "abcde"
def test_callback_resolution_weaving():
d = Deferred()
d.add_callbacks(lambda r: fail(Exception(r + "b")),
lambda e: e.value.args[0] + 'w')
d.add_callbacks(lambda e: Exception(e + "x"),
lambda e: e.value.args[0] + "c")
d.add_callbacks(lambda r: Exception(r + "d"),
lambda e: e.value.args[0] + 'y')
d.add_callbacks(lambda r: r + "z", lambda e: e.value.args[0] + 'e')
d.callback("a")
assert d.result == "abcde"
def test_fail_none():
d = fail()
assert isinstance(d.result, DeferredException)
assert d.called
assert not d.callbacks
def promise(self):
return fail(Exception('Something bad happened! Sucks :('))
def promise(self):
return fail(Exception('Something bad happened! Sucks :('))
def test_fail_none():
d = fail()
assert isinstance(d.result, DeferredException)
assert d.called
assert not d.callbacks
