def test_nested_chain():
value = object()
test_function = CountCalls(pass_parameter)
greenlet = chain(
(test_function, value),
chain(
test_function,
test_function,
test_function,
test_function),
test_function,
)
greenlet.start()
assert value is greenlet.get()
assert 6 == test_function.calls
def test_chain_add_args():
return_second = lambda x, y: y
value, value2 = object(), object()
greenlet = chain(
(pass_parameter, value),
(return_second, value2),
)
greenlet.start()
assert value2 == greenlet.get()
def test_chain_one():
value = object()
test_function = CountCalls(pass_parameter)
greenlet = chain(
(test_function, value),
)
greenlet.start()
assert value == greenlet.get()
assert 1 == test_function.calls
def test_pass_into_chain():
value = object()
test_function = CountCalls(pass_parameter)
greenlet = chain(
test_function,
test_function,
)
greenlet.start(value)
assert value == greenlet.get()
assert 2 == test_function.calls
def test_simple_chain():
value = object()
test_function = CountCalls(pass_parameter)
greenlet = chain(
Greenlet(test_function, value),
test_function,
)
greenlet.start()
assert value == greenlet.get()
assert 2 == test_function.calls
def test_chain_with_immutable():
value, value2 = object(), object()
test_function = CountCalls(pass_parameter)
immutable_greenlet = Greenlet(test_function, value2)
immutable_greenlet.immutable = True
greenlet = chain(
(test_function, value),
test_function,
immutable_greenlet,
test_function,
)
greenlet.start()
assert value2 == greenlet.get()
assert 4 == test_function.calls
