import re import os import sys import time import ssl import paho.mqtt.client as mqtt 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 g_recv_data = "" g_recv_topic = "" g_broker_connected = 0 # The callback for when the client receives a CONNACK response from the server. def on_connect(client, userdata, flags, rc): global g_broker_connected print("Connected with result code " + str(rc)) g_broker_connected = 1 client.subscribe("/topic/qos0") # The callback for when a PUBLISH message is received from the server. def on_message(client, userdata, msg): global g_recv_topic global g_recv_data payload = msg.payload.decode() if g_recv_data == "" and payload == "data": client.publish("/topic/qos0", "data_to_esp32") g_recv_topic = msg.topic g_recv_data = payload print(msg.topic + " " + str(payload)) @IDF.idf_example_test(env_tag="Example_WIFI") def test_examples_protocol_mqtt_ssl(env, extra_data): global g_recv_topic global g_recv_data global g_broker_connected broker_url = "iot.eclipse.org" """ 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) # 1. start test (and check the environment is healthy) dut1.start_app() client = None # 2. Test connects to a broker try: ip_address = dut1.expect(re.compile(r" sta ip: ([^,]+),"), timeout=30) print("Connected to AP with IP: {}".format(ip_address)) 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, ciphers=None) client.tls_insecure_set(True) print("Connecting...") client.connect(broker_url, 8883, 60) print("...done") except DUT.ExpectTimeout: raise ValueError('ENV_TEST_FAILURE: Cannot connect to AP') except Exception: print("ENV_TEST_FAILURE: Unexpected error while connecting to broker {}: {}:".format(broker_url, sys.exc_info()[0])) raise print("Start Looping...") start = time.time() while (time.time() - start) <= 20: client.loop() print("...done") if g_broker_connected == 0: raise ValueError('ENV_TEST_FAILURE: Test script cannot connect to broker: {}'.format(broker_url)) # 3. check the message received back from the server if g_recv_topic == "/topic/qos0" and g_recv_data == "data": print("PASS: Received correct message") else: print("Failure!") raise ValueError('Wrong data received topic: {}, data:{}'.format(g_recv_topic, g_recv_data)) # 4. check that the esp32 client received data sent by this python client dut1.expect(re.compile(r"DATA=data_to_esp32"), timeout=30) if __name__ == '__main__': test_examples_protocol_mqtt_ssl()