def test_split_value():
assert split_value({}, 'k') == []
assert split_value({'k': None}, 'k') == []
assert split_value({'k': ' '}, 'k') == []
assert split_value({'k': ' foo '}, 'k') == ['foo']
assert split_value({'k': 'foo , bar , , baz '},
'k') == ['foo', 'bar', 'baz']
def _split_value_fail(d, k, expected):
with raises(Exception) as got:
split_value(d, k)
assert_exception_correct(got.value, expected)