OVMS3-idf/examples/protocols/mqtt/wss/mqtt_wss_example_test.py

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from __future__ import unicode_literals
import re
import os
import sys
import time
import ssl
import paho.mqtt.client as mqtt
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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
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print("Connected with result code " + str(rc))
g_broker_connected = 1
client.subscribe("/topic/qos0")
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# 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()
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if g_recv_data == "" and payload == "data":
client.publish("/topic/qos0", "data_to_esp32")
g_recv_topic = msg.topic
g_recv_data = payload
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print(msg.topic + " " + str(payload))
@IDF.idf_example_test(env_tag="Example_WIFI")
def test_examples_protocol_mqtt_wss(env, extra_data):
global g_recv_topic
global g_recv_data
global g_broker_connected
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broker_url = "iot.eclipse.org"
"""
steps: |
1. join AP and connects to wss broker
2. Test connects a client to the same broker
3. Test evaluates it received correct qos0 message
4. Test ESP32 client received correct qos0 message
"""
dut1 = env.get_dut("mqtt_websocket_secure", "examples/protocols/mqtt/wss")
# check and log bin size
binary_file = os.path.join(dut1.app.binary_path, "mqtt_websocket_secure.bin")
bin_size = os.path.getsize(binary_file)
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IDF.log_performance("mqtt_websocket_secure_bin_size", "{}KB".format(bin_size // 1024))
IDF.check_performance("mqtt_websocket_secure_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(transport="websockets")
client.on_connect = on_connect
client.on_message = on_message
client.tls_set(None,
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None,
None, cert_reqs=ssl.CERT_NONE, tls_version=ssl.PROTOCOL_TLSv1, ciphers=None)
print("Connecting...")
client.connect(broker_url, 443, 60)
print("...done")
except DUT.ExpectTimeout:
raise ValueError('ENV_TEST_FAILURE: Cannot connect to AP')
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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
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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)
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if __name__ == '__main__':
test_examples_protocol_mqtt_wss()