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 sys
import re
from threading import Thread
import subprocess
try:
# This environment variable is expected on the host machine
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
except ImportError as e:
print(e)
print("Try `export TEST_FW_PATH=$IDF_PATH/tools/tiny-test-fw` for resolving the issue")
print("Try `pip install -r $IDF_PATH/tools/tiny-test-fw/requirements.txt` for resolving the issue")
import IDF
try:
import lib_ble_client
except ImportError:
lib_ble_client_path = os.getenv("IDF_PATH") + "/tools/ble"
if lib_ble_client_path and lib_ble_client_path not in sys.path:
sys.path.insert(0, lib_ble_client_path)
import lib_ble_client
import Utility
# 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(dut_addr, dut):
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:
Utility.console_log("Connection to device ", ble_devname, "failed !!")
# Call disconnect to perform cleanup operations before exiting application
ble_client_obj.disconnect()
return
# 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:
print("\nServices\n")
print(services_ret)
else:
print("Failure: Read Services failed")
ble_client_obj.disconnect()
return
# 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():
print("\n\tCharacteristic: ", path)
print("\tCharacteristic UUID: ", props[2])
print("\tValue: ", props[0])
print("\tProperties: : ", props[1])
else:
print("Failure: Read Characteristics failed")
ble_client_obj.disconnect()
return
'''
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():
print("\n\tCharacteristic:", path)
print("\tCharacteristic UUID: ", props[2])
print("\tValue:", props[0])
print("\tProperties: : ", props[1])
else:
print("Failure: Write Characteristics failed")
ble_client_obj.disconnect()
return
# Call disconnect to perform cleanup operations before exiting application
ble_client_obj.disconnect()
@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
"""
try:
# Acquire DUT
dut = env.get_dut("bleprph", "examples/bluetooth/nimble/bleprph")
# Get binary file
binary_file = os.path.join(dut.app.binary_path, "bleprph.bin")
bin_size = os.path.getsize(binary_file)
IDF.log_performance("bleprph_bin_size", "{}KB".format(bin_size // 1024))
IDF.check_performance("bleprph_bin_size", bin_size // 1024)
# Upload binary and start testing
Utility.console_log("Starting bleprph simple example test app")
dut.start_app()
subprocess.check_output(['rm','-rf','/var/lib/bluetooth/*'])
# Get device address from dut
dut_addr = dut.expect(re.compile(r"Device Address: ([a-fA-F0-9:]+)"), timeout=30)[0]
# Starting a py-client in a separate thread
thread1 = Thread(target=bleprph_client_task, args=(dut_addr,dut,))
thread1.start()
thread1.join()
# Check dut responses
dut.expect("connection established; status=0", timeout=30)
dut.expect("disconnect;", timeout=30)
except Exception as e:
sys.exit(e)
if __name__ == '__main__':
test_example_app_ble_peripheral()