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# vim: set fileencoding=utf-8:
#
# GPIO Zero: a library for controlling the Raspberry Pi's GPIO pins
#
# Copyright (c) 2019-2023 Dave Jones <dave@waveform.org.uk>
#
# SPDX-License-Identifier: BSD-3-Clause
import sys
import pytest
import warnings
from threading import Event, Thread
from gpiozero import Device
from gpiozero.pins.mock import MockFactory, MockPWMPin
# NOTE: Work-around for python versions <3.4: in these versions the
# resetwarnings function in the warnings module doesn't do much (or doesn't do
# what most would expect). Warnings that have already been triggered still
# won't be re-triggered even after the call. To work-around this we set the
# default filter to "always" on these versions before running any tests. Note
# that this does mean you should run resetwarnings() whenever using
# catch_warnings()
if sys.version_info[:2] < (3, 4):
warnings.simplefilter('always')
@pytest.fixture()
def no_default_factory(request):
save_pin_factory = Device.pin_factory
Device.pin_factory = None
try:
yield None
finally:
Device.pin_factory = save_pin_factory
@pytest.fixture(scope='function')
def mock_factory(request):
save_factory = Device.pin_factory
Device.pin_factory = MockFactory()
try:
yield Device.pin_factory
# This reset() may seem redundant given we're re-constructing the
# factory for each function that requires it but MockFactory (via
# LocalFactory) stores some info at the class level which reset()
# clears.
finally:
if Device.pin_factory is not None:
Device.pin_factory.reset()
Device.pin_factory = save_factory
@pytest.fixture()
def pwm(request, mock_factory):
mock_factory.pin_class = MockPWMPin
class ThreadedTest(Thread):
def __init__(self, test_fn, *args, **kwargs):
self._fn = test_fn
self._args = args
self._kwargs = kwargs
self._result = None
super().__init__(daemon=True)
self.start()
def run(self):
self._result = self._fn(*self._args, **self._kwargs)
@property
def result(self):
self.join(10)
if not self.is_alive():
return self._result
else:
raise RuntimeError('test thread did not finish')
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