'add a number to a dial'

def test_add_number(self):

    d = Dial()
    d.number('1231231234')
    r = VoiceResponse()
    r.append(d)
    assert_equal(self.strip(r), '<?xml    version="1.0"    encoding="UTF-8"?><Response><Dial><Number>1231231234</Number></Dial></Response>')
