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

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3.6 KiB
Python
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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
import ttfw_idf
# ----------- Config ----------
PORT = 3333
INTERFACE = 'eth0'
# -------------------------------
def udp_client(address, payload):
for res in socket.getaddrinfo(address, PORT, socket.AF_UNSPEC,
socket.SOCK_DGRAM, 0, socket.AI_PASSIVE):
family_addr, socktype, proto, canonname, addr = res
try:
sock = socket.socket(family_addr, socket.SOCK_DGRAM)
sock.settimeout(20.0)
except socket.error as msg:
print('Could not create socket')
print(os.strerror(msg.errno))
raise
try:
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sock.sendto(payload.encode(), addr)
reply, addr = sock.recvfrom(128)
if not reply:
return
print('Reply[' + addr[0] + ':' + str(addr[1]) + '] - ' + str(reply))
except socket.timeout:
print('Socket operation timeout')
return str(None)
except socket.error as msg:
print('Error while sending or receiving data from the socket')
print(os.strerror(msg.errno))
sock.close()
raise
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return reply.decode()
@ttfw_idf.idf_example_test(env_tag='Example_WIFI_Protocols')
def test_examples_protocol_socket_udpserver(env, extra_data):
MESSAGE = 'Data to ESP'
MAX_RETRIES = 3
"""
steps:
1. join AP
2. have the board connect to the server
3. send and receive data
"""
dut1 = env.get_dut('udp_server', 'examples/protocols/sockets/udp_server', dut_class=ttfw_idf.ESP32DUT)
# check and log bin size
binary_file = os.path.join(dut1.app.binary_path, 'udp_server.bin')
bin_size = os.path.getsize(binary_file)
ttfw_idf.log_performance('udp_server_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))
dut1.expect(re.compile(r'Waiting for data'), timeout=10)
# test IPv4
for _ in range(MAX_RETRIES):
print('Testing UDP on IPv4...')
received = udp_client(ipv4, MESSAGE)
if received == MESSAGE:
print('OK')
break
else:
raise ValueError('IPv4: Did not receive UDP message after {} retries'.format(MAX_RETRIES))
dut1.expect(MESSAGE)
# test IPv6
for _ in range(MAX_RETRIES):
print('Testing UDP on IPv6...')
received = udp_client('{}%{}'.format(ipv6, INTERFACE), MESSAGE)
if received == MESSAGE:
print('OK')
break
else:
raise ValueError('IPv6: Did not receive UDP message after {} retries'.format(MAX_RETRIES))
dut1.expect(MESSAGE)
if __name__ == '__main__':
if sys.argv[2:]: # if two arguments provided:
# Usage: example_test.py <server_address> <message_to_send_to_server>
udp_client(sys.argv[1], sys.argv[2])
else: # otherwise run standard example test as in the CI
test_examples_protocol_socket_udpserver()