esp-idf/tools/test_apps/protocols/pppos/app_test.py

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from __future__ import print_function
from __future__ import unicode_literals
import re
import socket
import subprocess
import ttfw_idf
import time
import netifaces
from threading import Thread, Event
def run_server(server_stop, port, server_ip, client_ip):
print("Starting PPP server on port: {}".format(port))
try:
arg_list = ['pppd', port, '115200', '{}:{}'.format(server_ip, client_ip), 'modem', 'local', 'noauth', 'debug', 'nocrtscts', 'nodetach', '+ipv6']
p = subprocess.Popen(arg_list, stdout=subprocess.PIPE, bufsize=1)
while not server_stop.is_set():
if p.poll() is not None:
raise ValueError('ENV_TEST_FAILURE: PPP terminated unexpectedly with {}'.format(p.poll()))
line = p.stdout.readline()
if line:
print("[PPPD:]{}".format(line.rstrip()))
time.sleep(0.1)
except Exception as e:
print(e)
raise ValueError('ENV_TEST_FAILURE: Error running PPP server')
finally:
p.terminate()
print("PPP server stopped")
@ttfw_idf.idf_custom_test(env_tag="Example_PPP", group="test-apps")
def test_examples_protocol_pppos_connect(env, extra_data):
"""
steps:
1. starts PPP server
2. get DUT as PPP client to connect to the server
3. check TCP client-server connection between client-server
"""
dut1 = env.get_dut("pppos_connect_test", "tools/test_apps/protocols/pppos", dut_class=ttfw_idf.ESP32DUT)
# Look for test case symbolic names
try:
server_ip = dut1.app.get_sdkconfig()["CONFIG_TEST_APP_PPP_SERVER_IP"].replace('"','')
client_ip = dut1.app.get_sdkconfig()["CONFIG_TEST_APP_PPP_CLIENT_IP"].replace('"','')
port_nr = dut1.app.get_sdkconfig()["CONFIG_TEST_APP_TCP_PORT"]
except Exception:
print('ENV_TEST_FAILURE: Some mandatory configuration not found in sdkconfig')
raise
print("Starting the test on {}".format(dut1))
dut1.start_app()
# the PPP test env uses two ttyUSB's: one for ESP32 board, another one for ppp server
# use the other port for PPP server than the DUT/ESP
port = '/dev/ttyUSB0' if dut1.port == '/dev/ttyUSB1' else '/dev/ttyUSB1'
# Start the PPP server
server_stop = Event()
t = Thread(target=run_server, args=(server_stop, port, server_ip, client_ip))
t.start()
try:
ppp_server_timeout = time.time() + 30
while "ppp0" not in netifaces.interfaces():
print("PPP server haven't yet setup its netif, list of active netifs:{}".format(netifaces.interfaces()))
time.sleep(0.5)
if time.time() > ppp_server_timeout:
raise ValueError("ENV_TEST_FAILURE: PPP server failed to setup ppp0 interface within timeout")
ip6_addr = dut1.expect(re.compile(r"Got IPv6 address (\w{4}\:\w{4}\:\w{4}\:\w{4}\:\w{4}\:\w{4}\:\w{4}\:\w{4})"), timeout=30)[0]
print("IPv6 address of ESP: {}".format(ip6_addr))
dut1.expect(re.compile(r"Socket listening"))
print("Starting the IPv6 test...")
# Connect to TCP server on ESP using IPv6 address
for res in socket.getaddrinfo(ip6_addr + "%ppp0", int(port_nr), socket.AF_INET6,
socket.SOCK_STREAM, socket.SOL_TCP):
af, socktype, proto, canonname, addr = res
sock = socket.socket(socket.AF_INET6, socket.SOCK_STREAM)
sock.connect(addr)
sock.sendall("Espressif")
sock.close()
dut1.expect(re.compile(r"IPv6 test passed"))
print("IPv6 test passed!")
print("Starting the IPv4 test...")
# Start the TCP server and wait for the ESP to connect with IPv4 address
try:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.bind(('', int(port_nr)))
sock.listen(1)
conn, addr = sock.accept()
except socket.error as msg:
print('Socket error: ' + str(msg[0]) + ': ' + msg[1])
raise
timeout = time.time() + 60
while time.time() < timeout:
data = conn.recv(128)
if not data:
break
data = data.decode()
print('Received data: ' + data)
if data.startswith('Espressif'):
conn.send(data.encode())
break
conn.close()
dut1.expect(re.compile(r"IPv4 test passed"))
print("IPv4 test passed!")
finally:
server_stop.set()
t.join()
if __name__ == '__main__':
test_examples_protocol_pppos_connect()