def test_read_continuous_dataflow_raises():
"""Verify workflows that lead to data flow issues."""
# create a session that doesn't ignore data flow issues
session = Session(add_all=False, ignore_dataflow=False)
session.scan()
session.add(session.available_devices[0])
device = session.devices[0]
session.start(0)
time.sleep(.5)
with pytest.raises(SampleDrop):
device.read(1000)
# force session destruction
session._close()
def session(request):
s = Session(add_all=False)
if s.scan() == 0:
# no devices plugged in
raise ValueError
s.add(s.available_devices[0])
yield s
# force session destruction
s._close()
def session(request):
session = Session(add_all=False)
session.scan()
return session
# events, use Ctrl-C to exit.
from __future__ import print_function
from signal import signal, SIG_DFL, SIGINT
import time
from pysmu import Session
session = Session()
last_devices = session.available_devices
while True:
time.sleep(2)
session.scan()
available_devices = session.available_devices
for other_device in last_devices:
found = False
for device in available_devices:
if other_device.serial == device.serial:
found = True
break
if not found:
print("Device detached!")
tmp = list(last_devices)
tmp.remove(other_device)
last_devices = tuple(tmp)
