def test_getters_01():
r'''Regression test.
'''
getter = getters.get_duration('foo bar')
input_ = 'asdf (1, 16)'
assert getter._run(pending_user_input=input_) == Duration(1, 16)
def test_getters_02():
r'''Allow none.
'''
getter = getters.get_duration('foo bar')
input_ = 'None'
assert getter._run(pending_user_input=input_) is None