# Simple functional tests for VNC functionality # # Copyright (c) 2018 Red Hat, Inc. # # Author: # Cleber Rosa # # This work is licensed under the terms of the GNU GPL, version 2 or # later. See the COPYING file in the top-level directory. import socket from typing import List from avocado_qemu import QemuSystemTest VNC_ADDR = '127.0.0.1' VNC_PORT_START = 32768 VNC_PORT_END = VNC_PORT_START + 1024 def check_bind(port: int) -> bool: with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock: try: sock.bind((VNC_ADDR, port)) except OSError: return False return True def check_connect(port: int) -> bool: with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock: try: sock.connect((VNC_ADDR, port)) except ConnectionRefusedError: return False return True def find_free_ports(count: int) -> List[int]: result = [] for port in range(VNC_PORT_START, VNC_PORT_END): if check_bind(port): result.append(port) if len(result) >= count: break assert len(result) == count return result class Vnc(QemuSystemTest): """ :avocado: tags=vnc,quick :avocado: tags=machine:none """ def test_no_vnc(self): self.vm.add_args('-nodefaults', '-S') self.vm.launch() self.assertFalse(self.vm.qmp('query-vnc')['return']['enabled']) def test_no_vnc_change_password(self): self.vm.add_args('-nodefaults', '-S') self.vm.launch() self.assertFalse(self.vm.qmp('query-vnc')['return']['enabled']) set_password_response = self.vm.qmp('change-vnc-password', password='new_password') self.assertIn('error', set_password_response) self.assertEqual(set_password_response['error']['class'], 'GenericError') self.assertEqual(set_password_response['error']['desc'], 'Could not set password') def test_change_password_requires_a_password(self): self.vm.add_args('-nodefaults', '-S', '-vnc', ':0') self.vm.launch() self.assertTrue(self.vm.qmp('query-vnc')['return']['enabled']) set_password_response = self.vm.qmp('change-vnc-password', password='new_password') self.assertIn('error', set_password_response) self.assertEqual(set_password_response['error']['class'], 'GenericError') self.assertEqual(set_password_response['error']['desc'], 'Could not set password') def test_change_password(self): self.vm.add_args('-nodefaults', '-S', '-vnc', ':0,password=on') self.vm.launch() self.assertTrue(self.vm.qmp('query-vnc')['return']['enabled']) self.vm.cmd('change-vnc-password', password='new_password') def test_change_listen(self): a, b, c = find_free_ports(3) self.assertFalse(check_connect(a)) self.assertFalse(check_connect(b)) self.assertFalse(check_connect(c)) self.vm.add_args('-nodefaults', '-S', '-vnc', f'{VNC_ADDR}:{a - 5900}') self.vm.launch() self.assertEqual(self.vm.qmp('query-vnc')['return']['service'], str(a)) self.assertTrue(check_connect(a)) self.assertFalse(check_connect(b)) self.assertFalse(check_connect(c)) self.vm.cmd('display-update', type='vnc', addresses=[{'type': 'inet', 'host': VNC_ADDR, 'port': str(b)}, {'type': 'inet', 'host': VNC_ADDR, 'port': str(c)}]) self.assertEqual(self.vm.qmp('query-vnc')['return']['service'], str(b)) self.assertFalse(check_connect(a)) self.assertTrue(check_connect(b)) self.assertTrue(check_connect(c))