def test_emptyish_char_waveform_monitor(self):
'''a test of a char waveform of length 1 (NORD=1): value "\0"
with using auto_monitor
'''
with no_simulator_updates():
zerostr = PV(pvnames.char_arr_pv, auto_monitor=True)
zerostr.wait_for_connection()
zerostr.put([0], wait=True)
time.sleep(0.2)
self.assertEquals(zerostr.get(as_string=True), '')
numpy.testing.assert_array_equal(zerostr.get(as_string=False), [0])
self.assertEquals(zerostr.get(as_string=True, as_numpy=False), '')
numpy.testing.assert_array_equal(
zerostr.get(as_string=False, as_numpy=False), [0])
zerostr.put([0, 0], wait=True)
time.sleep(0.2)
self.assertEquals(zerostr.get(as_string=True), '')
numpy.testing.assert_array_equal(zerostr.get(as_string=False),
[0, 0])
self.assertEquals(zerostr.get(as_string=True, as_numpy=False), '')
numpy.testing.assert_array_equal(
zerostr.get(as_string=False, as_numpy=False), [0, 0])
zerostr.disconnect()
def test_subarray_zerolen(self):
subarr1 = PV(pvnames.zero_len_subarr1)
subarr1.wait_for_connection()
val = subarr1.get(use_monitor=True, as_numpy=True)
self.assertIsInstance(val, numpy.ndarray, msg='using monitor')
self.assertEquals(len(val), 0, msg='using monitor')
# caproto returns things in big endian, not native type
# self.assertEquals(val.dtype, numpy.float64, msg='using monitor')
val = subarr1.get(use_monitor=False, as_numpy=True)
self.assertIsInstance(val, numpy.ndarray, msg='no monitor')
self.assertEquals(len(val), 0, msg='no monitor')
def test_subarray_1elem(self):
with no_simulator_updates():
# pv = PV(pvnames.zero_len_subarr1)
pv = PV(pvnames.double_arr_pv)
pv.wait_for_connection()
val = pv.get(count=1, use_monitor=False)
print('val is', val, type(val))
self.assertIsInstance(val, numpy.ndarray)
self.assertEqual(len(val), 1)
val = pv.get(count=1, as_numpy=False, use_monitor=False)
print('val is', val, type(val))
self.assertIsInstance(val, list)
self.assertEqual(len(val), 1)
def test_putwait(self):
write('Put with wait (using real motor!) \n')
pv = PV(pvnames.motor1)
# this works with a real motor, fail if it doesn't connect quickly
if not pv.wait_for_connection(timeout=0.2):
self.skipTest('Unable to connect to real motor record')
val = pv.get()
t0 = time.time()
if val < 5:
pv.put(val + 1.0, wait=True)
else:
pv.put(val - 1.0, wait=True)
dt = time.time() - t0
write(' put took %s sec\n' % dt)
self.failUnless(dt > 0.1)
# now with a callback!
global put_callback_called
put_callback_called = False
def onPutdone(pvname=None, **kws):
print('put done ', pvname, kws)
global put_callback_called
put_callback_called = True
val = pv.get()
if val < 5:
pv.put(val + 1.0, callback=onPutdone)
else:
pv.put(val - 1.0, callback=onPutdone)
t0 = time.time()
while time.time() - t0 < dt * 1.50:
time.sleep(0.02)
write(' put should be done by now? %s \n' % put_callback_called)
self.failUnless(put_callback_called)
# now using pv.put_complete
val = pv.get()
if val < 5:
pv.put(val + 1.0, use_complete=True)
else:
pv.put(val - 1.0, use_complete=True)
t0 = time.time()
count = 0
while time.time() - t0 < dt * 1.50:
if pv.put_complete:
break
count = count + 1
time.sleep(0.02)
write(
' put_complete=%s (should be True), and count=%i (should be>3)\n'
% (pv.put_complete, count))
self.failUnless(pv.put_complete)
self.failUnless(count > 3)
def test_thread_pv(threading_broadcaster):
from caproto.threading.client import Context, PV
pv1 = "XF:31IDA-OP{Tbl-Ax:X1}Mtr.VAL"
# pv2 = "XF:31IDA-OP{Tbl-Ax:X2}Mtr.VAL"
# Some user function to call when subscriptions receive data.
called = []
def user_callback(*, value, **kwargs):
print()
print('-- user callback', value)
called.append(True)
ctx = Context(threading_broadcaster, log_level='DEBUG')
ctx.register()
time_pv = PV(pv1, context=ctx, form='time')
ctrl_pv = PV(pv1, context=ctx, form='ctrl')
time_pv.wait_for_connection()
time_pv.add_callback(user_callback)
print('time read', time_pv.get())
print('ctrl read', ctrl_pv.get())
time_pv.put(3, wait=True)
time_pv.put(6, wait=True)
time.sleep(0.1)
assert time_pv.get() == 6
assert called
print('read', time_pv.get())
print('done')
repr(time_pv)
for k, v in PV.__dict__.items():
if isinstance(v, property):
getattr(time_pv, k)
getattr(ctrl_pv, k)
def test_emptyish_char_waveform_no_monitor(self):
'''a test of a char waveform of length 1 (NORD=1): value "\0"
without using auto_monitor
'''
with no_simulator_updates():
zerostr = PV(pvnames.char_arr_pv, auto_monitor=False)
zerostr.wait_for_connection()
# elem_count = 128, requested count = None, libca returns count = 1
zerostr.put([0], wait=True)
self.assertEquals(zerostr.get(as_string=True), '')
numpy.testing.assert_array_equal(zerostr.get(as_string=False), [0])
self.assertEquals(zerostr.get(as_string=True, as_numpy=False), '')
numpy.testing.assert_array_equal(zerostr.get(as_string=False, as_numpy=False), [0])
# elem_count = 128, requested count = None, libca returns count = 2
zerostr.put([0, 0], wait=True)
self.assertEquals(zerostr.get(as_string=True), '')
numpy.testing.assert_array_equal(zerostr.get(as_string=False), [0, 0])
self.assertEquals(zerostr.get(as_string=True, as_numpy=False), '')
numpy.testing.assert_array_equal(zerostr.get(as_string=False, as_numpy=False), [0, 0])
def test_putcomplete(self):
write('Put with wait and put_complete (using real motor!) \n')
vals = (1.35, 1.50, 1.44, 1.445, 1.45, 1.453, 1.446, 1.447, 1.450, 1.450, 1.490, 1.5, 1.500)
p = PV(pvnames.motor1)
# this works with a real motor, fail if it doesn't connect quickly
if not p.wait_for_connection(timeout=0.2):
self.skipTest('Unable to connect to real motor record')
see_complete = []
for v in vals:
t0 = time.time()
p.put(v, use_complete=True)
count = 0
for i in range(100000):
time.sleep(0.001)
count = count + 1
if p.put_complete:
see_complete.append(True)
break
# print( 'made it to value= %.3f, elapsed time= %.4f sec (count=%i)' % (v, time.time()-t0, count))
self.failUnless(len(see_complete) > (len(vals) - 5))