def tst_io(self): import socket from yieldfrom_t.http.client import HTTPResponse as OldHTTPResponse fp = self._fake_fp(b'foo') #fp = BytesIO(b'foo') resp = HTTPResponse(fp, preload_content=False) self.assertEqual(resp.closed, False) self.assertEqual(resp.readable(), True) self.assertEqual(resp.writable(), False) self.assertRaises(IOError, resp.fileno) resp.close() self.assertEqual(resp.closed, True) # Try closing with an `httplib.HTTPResponse`, because it has an # `isclosed` method. hlr = OldHTTPResponse(socket.socket()) resp2 = HTTPResponse(hlr, preload_content=False) self.assertEqual(resp2.closed, False) resp2.close() self.assertEqual(resp2.closed, True) #also try when only data is present. resp3 = HTTPResponse('foodata') self.assertRaises(IOError, resp3.fileno) resp3._fp = 2 # A corner case where _fp is present but doesn't have `closed`, # `isclosed`, or `fileno`. Unlikely, but possible. self.assertEqual(resp3.closed, True) self.assertRaises(IOError, resp3.fileno)