'Tests ignoring a param name.'

def test_ignore_name(self):

    def f(a):
        pass
    def g(b):
        pass
    def h(c=1):
        pass
    expected_args = [Argument(Argument.ignore, Argument.no_default)]
    verify_callable_argspec(f, expected_args)
    verify_callable_argspec(f, expected_args)
    with self.assertRaises(MismatchedArguments):
        verify_callable_argspec(h, expected_args)
