from __future__ import print_function from __future__ import unicode_literals from builtins import str import re import os import sys import ssl import paho.mqtt.client as mqtt from threading import Thread, Event try: import IDF except ImportError: # this is a test case write with tiny-test-fw. # to run test cases outside tiny-test-fw, # we need to set environment variable `TEST_FW_PATH`, # then get and insert `TEST_FW_PATH` to sys path before import FW module test_fw_path = os.getenv("TEST_FW_PATH") if test_fw_path and test_fw_path not in sys.path: sys.path.insert(0, test_fw_path) import IDF import DUT event_client_connected = Event() event_stop_client = Event() event_client_received_correct = Event() message_log = "" # The callback for when the client receives a CONNACK response from the server. def on_connect(client, userdata, flags, rc): print("Connected with result code " + str(rc)) event_client_connected.set() client.subscribe("/topic/qos0") def mqtt_client_task(client): while not event_stop_client.is_set(): client.loop() # The callback for when a PUBLISH message is received from the server. def on_message(client, userdata, msg): global message_log payload = msg.payload.decode() if not event_client_received_correct.is_set() and payload == "data": client.publish("/topic/qos0", "data_to_esp32") if msg.topic == "/topic/qos0" and payload == "data": event_client_received_correct.set() message_log += "Received data:" + msg.topic + " " + payload + "\n" @IDF.idf_example_test(env_tag="Example_WIFI") def test_examples_protocol_mqtt_ssl(env, extra_data): broker_url = "" broker_port = 0 """ steps: | 1. join AP and connects to ssl broker 2. Test connects a client to the same broker 3. Test evaluates python client received correct qos0 message 4. Test ESP32 client received correct qos0 message """ dut1 = env.get_dut("mqtt_ssl", "examples/protocols/mqtt/ssl") # check and log bin size binary_file = os.path.join(dut1.app.binary_path, "mqtt_ssl.bin") bin_size = os.path.getsize(binary_file) IDF.log_performance("mqtt_ssl_bin_size", "{}KB" .format(bin_size // 1024)) IDF.check_performance("mqtt_ssl_size", bin_size // 1024) # Look for host:port in sdkconfig try: value = re.search(r'\:\/\/([^:]+)\:([0-9]+)', dut1.app.get_sdkconfig()["CONFIG_BROKER_URI"]) broker_url = value.group(1) broker_port = int(value.group(2)) except Exception: print('ENV_TEST_FAILURE: Cannot find broker url in sdkconfig') raise client = None # 1. Test connects to a broker try: client = mqtt.Client() client.on_connect = on_connect client.on_message = on_message client.tls_set(None, None, None, cert_reqs=ssl.CERT_NONE, tls_version=ssl.PROTOCOL_TLSv1_2, ciphers=None) client.tls_insecure_set(True) print("Connecting...") client.connect(broker_url, broker_port, 60) except Exception: print("ENV_TEST_FAILURE: Unexpected error while connecting to broker {}: {}:".format(broker_url, sys.exc_info()[0])) raise # Starting a py-client in a separate thread thread1 = Thread(target=mqtt_client_task, args=(client,)) thread1.start() try: print("Connecting py-client to broker {}:{}...".format(broker_url, broker_port)) if not event_client_connected.wait(timeout=30): raise ValueError("ENV_TEST_FAILURE: Test script cannot connect to broker: {}".format(broker_url)) dut1.start_app() try: ip_address = dut1.expect(re.compile(r" sta ip: ([^,]+),"), timeout=30) print("Connected to AP with IP: {}".format(ip_address)) except DUT.ExpectTimeout: print('ENV_TEST_FAILURE: Cannot connect to AP') raise print("Checking py-client received msg published from esp...") if not event_client_received_correct.wait(timeout=30): raise ValueError('Wrong data received, msg log: {}'.format(message_log)) print("Checking esp-client received msg published from py-client...") dut1.expect(re.compile(r"DATA=data_to_esp32"), timeout=30) finally: event_stop_client.set() thread1.join() if __name__ == '__main__': test_examples_protocol_mqtt_ssl()