esp-idf/examples/protocols/sockets/udp_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
from __future__ import unicode_literals
from builtins import input
import os
import re
import netifaces
import socket
from threading import Thread, Event
import ttfw_idf
import sys
# ----------- Config ----------
PORT = 3333
INTERFACE = 'eth0'
# -------------------------------
def get_my_ip(type):
for i in netifaces.ifaddresses(INTERFACE)[type]:
return i['addr'].replace("%{}".format(INTERFACE), "")
class UdpServer:
def __init__(self, port, family_addr, persist=False):
self.port = port
self.family_addr = family_addr
self.socket = socket.socket(family_addr, socket.SOCK_DGRAM)
self.socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
self.socket.settimeout(60.0)
self.shutdown = Event()
self.persist = persist
def __enter__(self):
try:
self.socket.bind(('', self.port))
except socket.error as e:
print("Bind failed:{}".format(e))
raise
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_DGRAM)
sock.sendto(b'Stop', ('localhost', self.port))
sock.close()
self.shutdown.set()
self.server_thread.join()
self.socket.close()
def run_server(self):
while not self.shutdown.is_set():
try:
data, addr = self.socket.recvfrom(1024)
if not data:
return
data = data.decode()
print('Reply[' + addr[0] + ':' + str(addr[1]) + '] - ' + data)
reply = 'OK: ' + data
self.socket.sendto(reply.encode(), addr)
except socket.error as e:
print("Running server failed:{}".format(e))
raise
if not self.persist:
break
@ttfw_idf.idf_example_test(env_tag="Example_WIFI")
def test_examples_protocol_socket_udpclient(env, extra_data):
"""
steps:
1. join AP
2. have the board connect to the server
3. send and receive data
"""
dut1 = env.get_dut("udp_client", "examples/protocols/sockets/udp_client", dut_class=ttfw_idf.ESP32DUT)
# check and log bin size
binary_file = os.path.join(dut1.app.binary_path, "udp_client.bin")
bin_size = os.path.getsize(binary_file)
ttfw_idf.log_performance("udp_client_bin_size", "{}KB".format(bin_size // 1024))
# start test
dut1.start_app()
ipv4 = dut1.expect(re.compile(r" IPv4 address: ([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)"), 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))
# test IPv4
with UdpServer(PORT, socket.AF_INET):
server_ip = get_my_ip(netifaces.AF_INET)
print("Connect udp client to server IP={}".format(server_ip))
dut1.write(server_ip)
dut1.expect(re.compile(r"OK: Message from ESP32"))
# test IPv6
with UdpServer(PORT, socket.AF_INET6):
server_ip = get_my_ip(netifaces.AF_INET6)
print("Connect udp 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 UdpServer(PORT, family_addr, persist=True) as s:
print(input("Press Enter stop the server..."))
else:
test_examples_protocol_socket_udpclient()