def test_afterFoundGet(self):
        """
        Enabling unsafe redirection behaviour overwrites the method of
        redirected C{POST} requests with C{GET}.
        """
        url = self.getURL('extendedRedirect?code=302')
        f = client.HTTPClientFactory(url, followRedirect=True, method=b"POST")
        self.assertFalse(
            f.afterFoundGet,
            "By default, afterFoundGet must be disabled")

        def gotPage(page):
            self.assertEqual(
                self.extendedRedirect.lastMethod,
                b"GET",
                "With afterFoundGet, the HTTP method must change to GET")

        d = client.getPage(
            url, followRedirect=True, afterFoundGet=True, method=b"POST")
        d.addCallback(gotPage)
        return d

        Enabling unsafe redirection behaviour overwrites the method of
        redirected C{POST} requests with C{GET}.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/web/test/test_webclient.py