'Setup the demo platform and receive wrong filename from web.'

def test_setup_component_and_web_view_wrong_filename(self):

    config = {tts.DOMAIN: {'platform': 'demo'}}
    with assert_setup_component(1, tts.DOMAIN):
        setup_component(self.hass, tts.DOMAIN, config)
    self.hass.start()
    url = '{}/api/tts_proxy/265944dsk32c1b2a621be5930510bb2cd_en_-_demo.mp3'.format(self.hass.config.api.base_url)
    req = requests.get(url)
    assert (req.status_code == 404)
