esp-idf/examples/peripherals/twai/twai_network/example_test.py

75 lines
3.0 KiB
Python

# Need Python 3 string formatting functions
from __future__ import print_function
from threading import Thread
import ttfw_idf
# Define tuple of strings to expect for each DUT.
master_expect = ('TWAI Master: Driver installed', 'TWAI Master: Driver uninstalled')
slave_expect = ('TWAI Slave: Driver installed', 'TWAI Slave: Driver uninstalled')
listen_only_expect = ('TWAI Listen Only: Driver installed', 'TWAI Listen Only: Driver uninstalled')
def dut_thread_callback(**kwargs):
# Parse keyword arguments
dut = kwargs['dut'] # Get DUT from kwargs
expected = kwargs['expected']
result = kwargs['result'] # Get result[out] from kwargs. MUST be of mutable type e.g. list
# Must reset again as flashing during start_app will reset multiple times, causing unexpected results
dut.reset()
for string in expected:
dut.expect(string, 20)
# Mark thread has run to completion without any exceptions
result[0] = True
@ttfw_idf.idf_example_test(env_tag='Example_TWAI2', ignore=True)
def test_twai_network_example(env, extra_data):
# Get device under test. "dut1", "dut2", and "dut3" must be properly defined in EnvConfig
dut_master = env.get_dut('dut1', 'examples/peripherals/twai/twai_network/twai_network_master',
dut_class=ttfw_idf.ESP32DUT)
dut_slave = env.get_dut('dut2', 'examples/peripherals/twai/twai_network/twai_network_slave',
dut_class=ttfw_idf.ESP32DUT)
dut_listen_only = env.get_dut('dut3', 'examples/peripherals/twai/twai_network/twai_network_listen_only',
dut_class=ttfw_idf.ESP32DUT)
# Flash app onto each DUT, each DUT is reset again at the start of each thread
dut_master.start_app()
dut_slave.start_app()
dut_listen_only.start_app()
# Create dict of keyword arguments for each dut
results = [[False], [False], [False]]
master_kwargs = {'dut': dut_master, 'result': results[0], 'expected': master_expect}
slave_kwargs = {'dut': dut_slave, 'result': results[1], 'expected': slave_expect}
listen_only_kwargs = {'dut': dut_listen_only, 'result': results[2], 'expected': listen_only_expect}
# Create thread for each dut
dut_master_thread = Thread(target=dut_thread_callback, name='Master Thread', kwargs=master_kwargs)
dut_slave_thread = Thread(target=dut_thread_callback, name='Slave Thread', kwargs=slave_kwargs)
dut_listen_only_thread = Thread(target=dut_thread_callback, name='Listen Only Thread', kwargs=listen_only_kwargs)
# Start each thread
dut_listen_only_thread.start()
dut_master_thread.start()
dut_slave_thread.start()
# Wait for threads to complete
dut_listen_only_thread.join()
dut_master_thread.join()
dut_slave_thread.join()
# check each thread ran to completion
for result in results:
if result[0] is not True:
raise Exception('One or more threads did not run successfully')
if __name__ == '__main__':
test_twai_network_example()