def test_return_none_if_all_functions_return_empty_result():
def empty():
return None
dispatch_function = dispatch(
empty,
empty,
empty,
empty
)
assert dispatch_function() is None
def test_return_first_non_empty_result():
def empty():
return None
def one():
return 1
def two():
return 2
dispatch_function = dispatch(
empty,
empty,
one,
two,
empty
)
assert dispatch_function() == 1
