def test_Worker_jobs__quit_without_start():
print_title("Worker_jobs - quit without start")
app = create_QApplication()
qdev = QDeviceIO(FakeDevice())
qdev.create_worker_jobs()
tprint("About to quit")
app.processEvents()
assert qdev.quit() == True
app.quit()
def test_Worker_jobs__no_device_attached():
print_title("Worker_jobs - no device attached")
import pytest
qdev = QDeviceIO()
with pytest.raises(SystemExit) as pytest_wrapped_e:
qdev.create_worker_jobs()
assert pytest_wrapped_e.type == SystemExit
dprint("Exit code: %i" % pytest_wrapped_e.value.code)
assert pytest_wrapped_e.value.code == 99
def test_Worker_DAQ___lose_connection():
print_title("Worker_DAQ - INTERNAL_TIMER - lose connection")
def DAQ_function():
# Must return True when successful, False otherwise
if qdev.update_counter_DAQ == 10:
dev.is_alive = False
reply = dev.fake_query_1()
return reply[-4:] == "0101"
# NOTE: The global 'go' mechanism used here is a quick and dirty way to
# pytest. In production, it should be implemented by an boolean external
# class member.
global go
go = True
@QtCore.pyqtSlot()
def process_connection_lost():
tprint("---> received: connection_lost")
global go
go = False
app = create_QApplication()
dev = FakeDevice()
# Forcefully remove members as extra test
del dev.name
del dev.is_alive
qdev = QDeviceIO(dev)
# fmt: off
qdev.create_worker_DAQ(DAQ_trigger=DAQ_TRIGGER.INTERNAL_TIMER,
DAQ_function=DAQ_function,
DAQ_interval_ms=20,
critical_not_alive_count=3,
debug=DEBUG)
# fmt: on
qdev.create_worker_jobs(debug=DEBUG)
qdev.signal_connection_lost.connect(process_connection_lost)
assert qdev.start() == True
# Simulate device runtime
while go:
app.processEvents()
time.sleep(0.001) # Do not hog the CPU
tprint("About to quit")
app.processEvents()
assert qdev.quit() == True
assert qdev.quit() == True # Twice, to check for msg 'already closed'.
app.quit()
def test_Worker_jobs__jobs_function():
print_title("Worker_jobs - jobs_function")
def jobs_function(func, args):
if func == "special command":
dev.fake_query_2()
else:
# Default job handling where, e.g.
# func = self.dev.write
# args = ("toggle LED",)
func(*args)
app = create_QApplication()
dev = FakeDevice()
qdev = QDeviceIO(dev)
qdev.create_worker_jobs(
jobs_function=jobs_function,
debug=DEBUG,
)
qdev.signal_jobs_updated.connect(process_jobs_updated)
assert qdev.start() == True
# Immediately fire a call to test if the worker is ready for it
qdev.send(dev.fake_query_2)
# fmt: off
# Simulate device runtime
start_time = time.perf_counter()
QtCore.QTimer.singleShot(100, lambda: qdev.send("special command"))
QtCore.QTimer.singleShot(
200, lambda: qdev.send(dev.fake_command_with_argument, 0))
# fmt: on
while time.perf_counter() - start_time < 0.5:
app.processEvents()
time.sleep(0.001) # Do not hog the CPU
tprint("About to quit")
app.processEvents()
assert qdev.quit() == True
app.quit()
assert dev.count_commands == 3
assert dev.count_replies == 2
assert cnt_jobs_updated == 3
def test_Worker_jobs(start_alive=True):
print_title("Worker_jobs" + ("" if start_alive else " - start dead"))
app = create_QApplication()
dev = FakeDevice(start_alive=start_alive)
qdev = QDeviceIO(dev)
qdev.create_worker_jobs(debug=DEBUG)
qdev.signal_jobs_updated.connect(process_jobs_updated)
assert qdev.start() == start_alive
# Immediately fire a call to test if the worker is ready for it
qdev.add_to_jobs_queue(dev.fake_query_2)
# fmt: off
# Simulate device runtime
start_time = time.perf_counter()
QtCore.QTimer.singleShot(100, qdev.process_jobs_queue)
QtCore.QTimer.singleShot(200, lambda: qdev.send(dev.fake_query_2))
QtCore.QTimer.singleShot(
300, lambda: qdev.add_to_jobs_queue(dev.fake_command_with_argument, 0))
QtCore.QTimer.singleShot(
400, lambda: qdev.add_to_jobs_queue(dev.fake_command_with_argument, 0))
QtCore.QTimer.singleShot(
500, lambda: qdev.add_to_jobs_queue(dev.fake_command_with_argument, 0))
QtCore.QTimer.singleShot(600, qdev.process_jobs_queue)
QtCore.QTimer.singleShot(
700, lambda: qdev.send("trigger_illegal_function_call_error"))
# fmt: on
while time.perf_counter() - start_time < 1:
app.processEvents()
time.sleep(0.001) # Do not hog the CPU
tprint("About to quit")
app.processEvents()
assert qdev.quit() == True
app.quit()
if start_alive:
assert dev.count_commands == 5
assert dev.count_replies == 2
assert cnt_jobs_updated == 4
# --------------------------------------------------------------------------
# Set up multithreaded communication with the Arduino
# --------------------------------------------------------------------------
# Create QDeviceIO
qdev_ard = QDeviceIO(ard)
# Create workers
qdev_ard.create_worker_DAQ(
DAQ_function=DAQ_function,
DAQ_interval_ms=DAQ_INTERVAL_MS,
critical_not_alive_count=1,
debug=DEBUG,
)
qdev_ard.create_worker_jobs(debug=DEBUG)
# Connect signals to slots
qdev_ard.signal_DAQ_updated.connect(window.update_GUI)
qdev_ard.signal_connection_lost.connect(notify_connection_lost)
# Hack. TODO: Implement start/stop in `QDeviceIO`
def start_stop():
qdev_ard.worker_DAQ.DAQ_function = (
DAQ_function if window.qpbt_running.isChecked() else None)
window.qpbt_running.clicked.connect(start_stop)
# Start workers
qdev_ard.start(DAQ_priority=QtCore.QThread.TimeCriticalPriority)