'Completer produces zsh shell-code that produces no completion matches.'

def test_completer(self):

    c = usage.Completer()
    got = c._shellCode('some-option', usage._ZSH)
    self.assertEqual(got, ':some-option:')
    c = usage.Completer(descr='some    action', repeat=True)
    got = c._shellCode('some-option', usage._ZSH)
    self.assertEqual(got, '*:some    action:')
