esp-idf/examples/protocols/sockets/tcp_client/example_test.py

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# This example code is in the Public Domain (or CC0 licensed, at your option.)
# Unless required by applicable law or agreed to in writing, this
# software is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
# CONDITIONS OF ANY KIND, either express or implied.
# -*- coding: utf-8 -*-
from __future__ import print_function, unicode_literals
import os
import re
import socket
import sys
from builtins import input
from threading import Event, Thread
import netifaces
import ttfw_idf
from common_test_methods import get_env_config_variable, get_host_ip_by_interface, get_my_interface_by_dest_ip
# ----------- Config ----------
PORT = 3333
# -------------------------------
class TcpServer:
def __init__(self, port, family_addr, persist=False):
self.port = port
self.socket = socket.socket(family_addr, socket.SOCK_STREAM)
self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self.socket.settimeout(60.0)
self.shutdown = Event()
self.persist = persist
self.family_addr = family_addr
def __enter__(self):
try:
self.socket.bind(('', self.port))
except socket.error as e:
print('Bind failed:{}'.format(e))
raise
self.socket.listen(1)
print('Starting server on port={} family_addr={}'.format(self.port, self.family_addr))
self.server_thread = Thread(target=self.run_server)
self.server_thread.start()
return self
def __exit__(self, exc_type, exc_value, traceback):
if self.persist:
sock = socket.socket(self.family_addr, socket.SOCK_STREAM)
sock.connect(('localhost', self.port))
sock.sendall(b'Stop', )
sock.close()
self.shutdown.set()
self.shutdown.set()
self.server_thread.join()
self.socket.close()
def run_server(self):
while not self.shutdown.is_set():
try:
conn, address = self.socket.accept() # accept new connection
print('Connection from: {}'.format(address))
conn.setblocking(1)
data = conn.recv(1024)
if not data:
return
data = data.decode()
print('Received data: ' + data)
reply = 'OK: ' + data
conn.send(reply.encode())
conn.close()
except socket.error as e:
print('Running server failed:{}'.format(e))
raise
if not self.persist:
break
@ttfw_idf.idf_example_test(env_tag='wifi_router')
def test_examples_protocol_socket_tcpclient(env, extra_data):
"""
steps:
1. join AP
2. have the board connect to the server
3. send and receive data
"""
dut1 = env.get_dut('tcp_client', 'examples/protocols/sockets/tcp_client', dut_class=ttfw_idf.ESP32DUT)
# check and log bin size
binary_file = os.path.join(dut1.app.binary_path, 'tcp_client.bin')
bin_size = os.path.getsize(binary_file)
ttfw_idf.log_performance('tcp_client_bin_size', '{}KB'.format(bin_size // 1024))
# start test
dut1.start_app()
if dut1.app.get_sdkconfig_config_value('CONFIG_EXAMPLE_WIFI_SSID_PWD_FROM_STDIN'):
dut1.expect('Please input ssid password:')
env_name = 'wifi_router'
ap_ssid = get_env_config_variable(env_name, 'ap_ssid')
ap_password = get_env_config_variable(env_name, 'ap_password')
dut1.write(f'{ap_ssid} {ap_password}')
ipv4 = dut1.expect(re.compile(r'IPv4 address: (\d+\.\d+\.\d+\.\d+)[^\d]'), timeout=30)[0]
ipv6_r = r':'.join((r'[0-9a-fA-F]{4}',) * 8) # expect all 8 octets from IPv6 (assumes it's printed in the long form)
ipv6 = dut1.expect(re.compile(r' IPv6 address: ({})'.format(ipv6_r)), timeout=30)[0]
print('Connected with IPv4={} and IPv6={}'.format(ipv4, ipv6))
my_interface = get_my_interface_by_dest_ip(ipv4)
# test IPv4
with TcpServer(PORT, socket.AF_INET):
server_ip = get_host_ip_by_interface(my_interface, netifaces.AF_INET)
print('Connect tcp client to server IP={}'.format(server_ip))
dut1.write(server_ip)
dut1.expect(re.compile(r'OK: Message from ESP32'))
# test IPv6
with TcpServer(PORT, socket.AF_INET6):
server_ip = get_host_ip_by_interface(my_interface, netifaces.AF_INET6)
print('Connect tcp client to server IP={}'.format(server_ip))
dut1.write(server_ip)
dut1.expect(re.compile(r'OK: Message from ESP32'))
if __name__ == '__main__':
if sys.argv[1:] and sys.argv[1].startswith('IPv'): # if additional arguments provided:
# Usage: example_test.py <IPv4|IPv6>
family_addr = socket.AF_INET6 if sys.argv[1] == 'IPv6' else socket.AF_INET
with TcpServer(PORT, family_addr, persist=True) as s:
print(input('Press Enter stop the server...'))
else:
test_examples_protocol_socket_tcpclient()