OVMS3-idf/examples/bluetooth/nimble/bleprph/bleprph_test.py

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#!/usr/bin/env python
#
# Copyright 2019 Espressif Systems (Shanghai) PTE LTD
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from __future__ import print_function
import os
import re
import Queue
import traceback
import threading
import subprocess
from tiny_test_fw import Utility
import ttfw_idf
from ble import lib_ble_client
# When running on local machine execute the following before running this script
# > make app bootloader
# > make print_flash_cmd | tail -n 1 > build/download.config
# > export TEST_FW_PATH=~/esp/esp-idf/tools/tiny-test-fw
def bleprph_client_task(prph_obj, dut, dut_addr):
interface = 'hci0'
ble_devname = 'nimble-bleprph'
srv_uuid = '2f12'
# Get BLE client module
ble_client_obj = lib_ble_client.BLE_Bluez_Client(interface, devname=ble_devname, devaddr=dut_addr)
if not ble_client_obj:
raise RuntimeError("Failed to get DBus-Bluez object")
# Discover Bluetooth Adapter and power on
is_adapter_set = ble_client_obj.set_adapter()
if not is_adapter_set:
raise RuntimeError("Adapter Power On failed !!")
# Connect BLE Device
is_connected = ble_client_obj.connect()
if not is_connected:
# Call disconnect to perform cleanup operations before exiting application
ble_client_obj.disconnect()
raise RuntimeError("Connection to device " + ble_devname + " failed !!")
# Check dut responses
dut.expect("GAP procedure initiated: advertise;", timeout=30)
# Read Services
services_ret = ble_client_obj.get_services(srv_uuid)
if services_ret:
Utility.console_log("\nServices\n")
Utility.console_log(str(services_ret))
else:
ble_client_obj.disconnect()
raise RuntimeError("Failure: Read Services failed")
# Read Characteristics
chars_ret = {}
chars_ret = ble_client_obj.read_chars()
if chars_ret:
Utility.console_log("\nCharacteristics retrieved")
for path, props in chars_ret.items():
Utility.console_log("\n\tCharacteristic: " + str(path))
Utility.console_log("\tCharacteristic UUID: " + str(props[2]))
Utility.console_log("\tValue: " + str(props[0]))
Utility.console_log("\tProperties: : " + str(props[1]))
else:
ble_client_obj.disconnect()
raise RuntimeError("Failure: Read Characteristics failed")
'''
Write Characteristics
- write 'A' to characteristic with write permission
'''
chars_ret_on_write = {}
chars_ret_on_write = ble_client_obj.write_chars('A')
if chars_ret_on_write:
Utility.console_log("\nCharacteristics after write operation")
for path, props in chars_ret_on_write.items():
Utility.console_log("\n\tCharacteristic:" + str(path))
Utility.console_log("\tCharacteristic UUID: " + str(props[2]))
Utility.console_log("\tValue:" + str(props[0]))
Utility.console_log("\tProperties: : " + str(props[1]))
else:
ble_client_obj.disconnect()
raise RuntimeError("Failure: Write Characteristics failed")
# Call disconnect to perform cleanup operations before exiting application
ble_client_obj.disconnect()
class BlePrphThread(threading.Thread):
def __init__(self, dut, dut_addr, exceptions_queue):
threading.Thread.__init__(self)
self.dut = dut
self.dut_addr = dut_addr
self.exceptions_queue = exceptions_queue
def run(self):
try:
bleprph_client_task(self, self.dut, self.dut_addr)
except Exception:
self.exceptions_queue.put(traceback.format_exc(), block=False)
@ttfw_idf.idf_example_test(env_tag="Example_WIFI_BT")
def test_example_app_ble_peripheral(env, extra_data):
"""
Steps:
1. Discover Bluetooth Adapter and Power On
2. Connect BLE Device
3. Read Services
4. Read Characteristics
5. Write Characteristics
"""
subprocess.check_output(['rm','-rf','/var/lib/bluetooth/*'])
subprocess.check_output(['hciconfig','hci0','reset'])
# Acquire DUT
dut = env.get_dut("bleprph", "examples/bluetooth/nimble/bleprph", dut_class=ttfw_idf.ESP32DUT)
# Get binary file
binary_file = os.path.join(dut.app.binary_path, "bleprph.bin")
bin_size = os.path.getsize(binary_file)
ttfw_idf.log_performance("bleprph_bin_size", "{}KB".format(bin_size // 1024))
ttfw_idf.check_performance("bleprph_bin_size", bin_size // 1024, dut.TARGET)
# Upload binary and start testing
Utility.console_log("Starting bleprph simple example test app")
dut.start_app()
dut.reset()
# Get device address from dut
dut_addr = dut.expect(re.compile(r"Device Address: ([a-fA-F0-9:]+)"), timeout=30)[0]
exceptions_queue = Queue.Queue()
# Starting a py-client in a separate thread
bleprph_thread_obj = BlePrphThread(dut, dut_addr, exceptions_queue)
bleprph_thread_obj.start()
bleprph_thread_obj.join()
exception_msg = None
while True:
try:
exception_msg = exceptions_queue.get(block=False)
except Queue.Empty:
break
else:
Utility.console_log("\n" + exception_msg)
if exception_msg:
raise Exception("Thread did not run successfully")
# Check dut responses
dut.expect("connection established; status=0", timeout=30)
dut.expect("disconnect;", timeout=30)
if __name__ == '__main__':
test_example_app_ble_peripheral()