def testCtrlStruct_ValueMonitor(self):
'''Monitor PV (value events) through GW - change value and properties directly - check CTRL structure consistency'''
diffs = []
# gwcachetest is an ai record with full set of alarm limits: -100 -10 10 100
gw = ca.create_channel("gateway:gwcachetest")
connected = ca.connect_channel(gw, timeout=.5)
self.assertTrue(connected,
"Could not connect to gateway channel " + ca.name(gw))
(gw_cbref, gw_uaref,
gw_eventid) = ca.create_subscription(gw,
mask=dbr.DBE_VALUE,
use_ctrl=True,
callback=self.onChangeGW)
ioc = ca.create_channel("ioc:gwcachetest")
connected = ca.connect_channel(ioc, timeout=.5)
self.assertTrue(connected,
"Could not connect to ioc channel " + ca.name(ioc))
(ioc_cbref, ioc_uaref,
ioc_eventid) = ca.create_subscription(ioc,
mask=dbr.DBE_VALUE,
use_ctrl=True,
callback=self.onChangeIOC)
# set value on IOC
ioc_value = ca.create_channel("ioc:gwcachetest")
ca.put(ioc_value, 10.0, wait=True)
gwtests.wait_until(
lambda: self.eventsReceivedIOC == self.eventsReceivedGW, 5.0)
self.assertTrue(
self.eventsReceivedIOC == self.eventsReceivedGW,
"After setting value, no. of received updates differ: GW {0}, IOC {1}"
.format(str(self.eventsReceivedGW), str(self.eventsReceivedIOC)))
(are_diff, diffs) = self.compareStructures()
self.assertTrue(
are_diff == False,
"At update {0} (change value), received structure updates differ:\n\t{1}"
.format(str(self.eventsReceivedIOC), "\n\t".join(diffs)))
# set property on IOC
ioc_hihi = ca.create_channel("ioc:gwcachetest.HIHI")
ca.put(ioc_hihi, 123.0, wait=True)
ca.put(ioc_value, 11.0, wait=True) # trigger update
gwtests.wait_until(
lambda: self.eventsReceivedIOC == self.eventsReceivedGW, 5.0)
self.assertTrue(
self.eventsReceivedIOC == self.eventsReceivedGW,
"After setting property, no. of received updates differ: GW {0}, IOC {1}"
.format(str(self.eventsReceivedGW), str(self.eventsReceivedIOC)))
(are_diff, diffs) = self.compareStructures()
self.assertTrue(
are_diff == False,
"At update {0} (change property), received structure updates differ:\n\t{1}"
.format(str(self.eventsReceivedIOC), "\n\t".join(diffs)))
def connectGwStats(self):
self.gw_vctotal = ca.create_channel("gwtest:vctotal")
ca.connect_channel(self.gw_vctotal, timeout=.5)
self.gw_pvtotal = ca.create_channel("gwtest:pvtotal")
ca.connect_channel(self.gw_pvtotal, timeout=.5)
self.gw_connected = ca.create_channel("gwtest:connected")
ca.connect_channel(self.gw_connected, timeout=.5)
self.gw_active = ca.create_channel("gwtest:active")
ca.connect_channel(self.gw_active, timeout=.5)
self.gw_inactive = ca.create_channel("gwtest:inactive")
ca.connect_channel(self.gw_inactive, timeout=.5)
def testEnumPropCache_ValueMonitorCTRLget(self):
'''Monitor PV (value events) through GW - change ENUM string directly - get the DBR_CTRL of the PV through GW'''
# gateway should show no VC (client side connection) and no PV (IOC side connection)
self.updateGwStats()
self.assertTrue(self.vctotal == 0, "Expected GW VC total count: 0, actual: " + str(self.vctotal))
self.assertTrue(self.pvtotal == 0, "Expected GW PV total count: 0, actual: " + str(self.pvtotal))
self.assertTrue(self.connected == 0, "Expected GW connected PV count: 0, actual: " + str(self.connected))
self.assertTrue(self.active == 0, "Expected GW active PV count: 0, actual: " + str(self.active))
self.assertTrue(self.inactive == 0, "Expected GW inactive PV count: 0, actual: " + str(self.inactive))
# enumtest is an mbbi record with three strings defined: zero one two
gw = ca.create_channel("gateway:enumtest")
connected = ca.connect_channel(gw, timeout=.5)
self.assertTrue(connected, "Could not connect to gateway channel " + ca.name(gw))
(gw_cbref, gw_uaref, gw_eventid) = ca.create_subscription(gw, mask=dbr.DBE_VALUE, callback=self.onChange)
ioc = ca.create_channel("ioc:enumtest")
connected = ca.connect_channel(ioc, timeout=.5)
self.assertTrue(connected, "Could not connect to ioc channel " + ca.name(gw))
(ioc_cbref, ioc_uaref, ioc_eventid) = ca.create_subscription(ioc, mask=dbr.DBE_VALUE, callback=self.onChange)
# gateway should show one VC and one connected active PV
self.updateGwStats()
self.assertTrue(self.vctotal == 1, "Expected GW VC total count: 1, actual: " + str(self.vctotal))
self.assertTrue(self.pvtotal == 1, "Expected GW PV total count: 1, actual: " + str(self.pvtotal))
self.assertTrue(self.connected == 1, "Expected GW connected PV count: 1, actual: " + str(self.connected))
self.assertTrue(self.active == 1, "Expected GW active PV count: 1, actual: " + str(self.active))
self.assertTrue(self.inactive == 0, "Expected GW inactive PV count: 0, actual: " + str(self.inactive))
# enum string should not have been updated
ioc_ctrl = ca.get_ctrlvars(ioc)
oneStr = ioc_ctrl['enum_strs'][1]
self.assertTrue(oneStr == 'one', "Expected IOC enum[1]: one; actual enum[1]: "+ oneStr)
gw_ctrl = ca.get_ctrlvars(gw)
oneStr = gw_ctrl['enum_strs'][1]
self.assertTrue(oneStr == 'one', "Expected GW enum[1]: one; actual enum[1]: "+ oneStr)
# set enum string on IOC
ioc_enum1 = ca.create_channel("ioc:enumtest.ONST")
ca.put(ioc_enum1, 'uno', wait=True)
time.sleep(.1)
# Now the enum string should have been updated (if IOC supports DBE_PROPERTY)
ioc_ctrl = ca.get_ctrlvars(ioc)
oneStr = ioc_ctrl['enum_strs'][1]
self.assertTrue(oneStr == 'uno', "Expected IOC enum[1]: uno; actual enum[1]: "+ oneStr)
if self.propSupported:
gw_expected = 'uno'
else:
gw_expected = 'one'
gw_ctrl = ca.get_ctrlvars(gw)
oneStr = gw_ctrl['enum_strs'][1]
self.assertTrue(oneStr == gw_expected, "Expected GW enum[1]: {0}; actual enum[1]: {1}".format(gw_expected, oneStr))
def test_DoubleVal(self):
pvn = pvnames.double_pv
chid = ca.create_channel(pvn,connect=True)
cdict = ca.get_ctrlvars(chid)
write( 'CA testing CTRL Values for a Double (%s)' % (pvn))
self.failUnless('units' in cdict)
self.failUnless('precision' in cdict)
self.failUnless('severity' in cdict)
hostname = ca.host_name(chid)
self.failUnless(len(hostname) > 1)
count = ca.element_count(chid)
self.assertEqual(count,1)
ftype= ca.field_type(chid)
self.assertEqual(ftype,ca.dbr.DOUBLE)
prec = ca.get_precision(chid)
self.assertEqual(prec, pvnames.double_pv_prec)
units= ca.bytes2str(ca.get_ctrlvars(chid)['units'])
self.assertEqual(units, pvnames.double_pv_units)
rwacc= ca.access(chid)
self.failUnless(rwacc.startswith('read'))
def test_type_converions_1(self):
write("CA type conversions scalars")
pvlist = (pvnames.str_pv, pvnames.int_pv, pvnames.float_pv,
pvnames.enum_pv, pvnames.long_pv, pvnames.double_pv2)
chids = []
pause_updating()
for name in pvlist:
chid = ca.create_channel(name)
ca.connect_channel(chid)
chids.append((chid, name))
ca.poll(evt=0.025, iot=5.0)
ca.poll(evt=0.05, iot=10.0)
values = {}
for chid, name in chids:
values[name] = ca.get(chid, as_string=True)
for promotion in ('ctrl', 'time'):
for chid, pvname in chids:
write('=== %s chid=%s as %s' % (ca.name(chid),
repr(chid), promotion))
time.sleep(0.01)
if promotion == 'ctrl':
ntype = ca.promote_type(chid, use_ctrl=True)
else:
ntype = ca.promote_type(chid, use_time=True)
val = ca.get(chid, ftype=ntype)
cval = ca.get(chid, as_string=True)
if ca.element_count(chid) > 1:
val = val[:12]
self.assertEqual(cval, values[pvname])
resume_updating()
def _test_array_callback(self, arrayname, array_type, length, element_type):
""" Helper function to subscribe to a PV array and check it
receives at least one subscription callback w/ specified type,
length & uniform element type. Checks separately for normal,
TIME & CTRL subscription variants. Returns the array or fails
an assertion."""
results = {}
for form in [ 'normal', 'time', 'ctrl' ]:
chid = ca.create_channel(arrayname,connect=True)
cb, uarg, eventID = ca.create_subscription(chid, use_time=form=='time', use_ctrl=form=='ctrl', callback=onChanges)
CHANGE_DAT.pop(arrayname, None)
timeout=0
# wait up to 6 seconds, if no callback probably due to simulator.py
# not running...
while timeout<120 and not arrayname in CHANGE_DAT:
time.sleep(0.05)
timeout = timeout+1
val = CHANGE_DAT.get(arrayname, None)
ca.clear_subscription(eventID)
self.assertIsNot(val, None)
self.assertEqual(type(val), array_type)
self.assertEqual(len(val), length)
self.assertEqual(type(val[0]), element_type)
self.assertTrue(all( type(e)==element_type for e in val))
results[form] = val
return results
def test_DoubleVal(self):
pvn = pvnames.double_pv
chid = ca.create_channel(pvn,connect=True)
cdict = ca.get_ctrlvars(chid)
write( 'CA testing CTRL Values for a Double (%s)' % (pvn))
self.failUnless('units' in cdict)
self.failUnless('precision' in cdict)
self.failUnless('severity' in cdict)
hostname = ca.host_name(chid)
self.failUnless(len(hostname) > 1)
count = ca.element_count(chid)
self.assertEqual(count,1)
ftype= ca.field_type(chid)
self.assertEqual(ftype,ca.dbr.DOUBLE)
prec = ca.get_precision(chid)
self.assertEqual(prec, pvnames.double_pv_prec)
units= ca.BYTES2STR(ca.get_ctrlvars(chid)['units'])
self.assertEqual(units, pvnames.double_pv_units)
rwacc= ca.access(chid)
self.failUnless(rwacc.startswith('read'))
def test_type_converions_2(self):
write("CA type conversions arrays")
pvlist = (pvnames.char_arr_pv,
pvnames.long_arr_pv,
pvnames.double_arr_pv)
with no_simulator_updates():
chids = []
for name in pvlist:
chid = ca.create_channel(name)
ca.connect_channel(chid)
chids.append((chid, name))
ca.poll(evt=0.025, iot=5.0)
ca.poll(evt=0.05, iot=10.0)
values = {}
for chid, name in chids:
values[name] = ca.get(chid)
for promotion in ('ctrl', 'time'):
for chid, pvname in chids:
write('=== %s chid=%s as %s' % (ca.name(chid), repr(chid),
promotion))
time.sleep(0.01)
if promotion == 'ctrl':
ntype = ca.promote_type(chid, use_ctrl=True)
else:
ntype = ca.promote_type(chid, use_time=True)
val = ca.get(chid, ftype=ntype)
cval = ca.get(chid, as_string=True)
for a, b in zip(val, values[pvname]):
self.assertEqual(a, b)
def setup_callback(pvname):
def my_cb(pvname=None, value=None, **kw):
sys.stdout.write( 'get: %s value=%s, kw=%s\n' %( pvname, str(value), repr(kw)))
sys.stdout.flush()
chid = ca.create_channel(pvname)
return ca.create_subscription(chid, callback=my_cb)
def _test_array_callback(self, arrayname, array_type, length, element_type):
""" Helper function to subscribe to a PV array and check it
receives at least one subscription callback w/ specified type,
length & uniform element type. Checks separately for normal,
TIME & CTRL subscription variants. Returns the array or fails
an assertion."""
results = {}
for form in [ 'normal', 'time', 'ctrl' ]:
chid = ca.create_channel(arrayname,connect=True)
cb, uarg, eventID = ca.create_subscription(chid, use_time=form=='time', use_ctrl=form=='ctrl', callback=onChanges)
CHANGE_DAT.pop(arrayname, None)
timeout=0
# wait up to 6 seconds, if no callback probably due to simulator.py
# not running...
while timeout<120 and not arrayname in CHANGE_DAT:
time.sleep(0.05)
timeout = timeout+1
val = CHANGE_DAT.get(arrayname, None)
ca.clear_subscription(eventID)
self.assertIsNot(val, None)
self.assertEqual(type(val), array_type)
self.assertEqual(len(val), length)
self.assertEqual(type(val[0]), element_type)
self.assertTrue(all( type(e)==element_type for e in val))
results[form] = val
return results
def generate_live_data(duration, period, pvnames):
pvnamelist = tuple(pvnames)
cols = list(pvnamelist)
cols.insert(0, 'timestamp')
pvconn = {}
alldata = []
ca.initialize_libca()
for name in pvnamelist:
chid = ca.create_channel(name, connect=False, auto_cb=False)
pvconn[name] = (chid, None)
for key in list(pvconn):
state = ca.connect_channel(pvconn.get(key)[0])
if not state:
print('PV:', key, 'not connected')
pvconn.pop(key)
ca.poll()
while duration > 0 and pvconn:
pvdata = []
for name, data in pvconn.items():
ca.get(data[0], wait=False)
ca.poll()
pvdata.append(datetime.datetime.now())
for name, data in pvconn.items():
val = ca.get_complete(data[0])
pvdata.append(val)
alldata.append(pvdata)
time.sleep(period)
duration = duration - period
ca.finalize_libca(maxtime=1.0)
df = pd.DataFrame(alldata, columns=cols)
return df
def test_CreateChidWithConn():
write('Simple Test: create chid with conn callback')
chid = ca.create_channel(pvnames.int_pv, callback=onConnect)
val = ca.get(chid)
global CONN_DAT
conn = CONN_DAT.get(pvnames.int_pv, None)
assert conn
def test_type_converions_2(self):
write("CA type conversions arrays\n")
pvlist = (pvnames.char_arr_pv,
pvnames.long_arr_pv,
pvnames.double_arr_pv)
with no_simulator_updates():
chids = []
for name in pvlist:
chid = ca.create_channel(name)
ca.connect_channel(chid)
chids.append((chid, name))
ca.poll(evt=0.025, iot=5.0)
ca.poll(evt=0.05, iot=10.0)
values = {}
for chid, name in chids:
values[name] = ca.get(chid)
for promotion in ('ctrl', 'time'):
for chid, pvname in chids:
write('=== %s chid=%s as %s\n' % (ca.name(chid),
repr(chid), promotion))
time.sleep(0.01)
if promotion == 'ctrl':
ntype = ca.promote_type(chid, use_ctrl=True)
else:
ntype = ca.promote_type(chid, use_time=True)
val = ca.get(chid, ftype=ntype)
cval = ca.get(chid, as_string=True)
for a, b in zip(val, values[pvname]):
self.assertEqual(a, b)
def test_type_converions_1(self):
write("CA type conversions scalars")
pvlist = (pvnames.str_pv, pvnames.int_pv, pvnames.float_pv,
pvnames.enum_pv, pvnames.long_pv, pvnames.double_pv2)
chids = []
with no_simulator_updates():
for name in pvlist:
chid = ca.create_channel(name)
ca.connect_channel(chid)
chids.append((chid, name))
ca.poll(evt=0.025, iot=5.0)
ca.poll(evt=0.05, iot=10.0)
values = {}
for chid, name in chids:
values[name] = ca.get(chid, as_string=True)
for promotion in ('ctrl', 'time'):
for chid, pvname in chids:
write('=== %s chid=%s as %s' % (ca.name(chid), repr(chid),
promotion))
time.sleep(0.01)
if promotion == 'ctrl':
ntype = ca.promote_type(chid, use_ctrl=True)
else:
ntype = ca.promote_type(chid, use_time=True)
val = ca.get(chid, ftype=ntype)
cval = ca.get(chid, as_string=True)
if ca.element_count(chid) > 1:
val = val[:12]
self.assertEqual(cval, values[pvname])
def test_promote_type(self):
pvn = pvnames.double_pv
chid = ca.create_channel(pvn,connect=True)
write( 'CA promote type (%s)' % (pvn))
f_t = ca.promote_type(chid,use_time=True)
f_c = ca.promote_type(chid,use_ctrl=True)
self.assertEqual(f_t, ca.dbr.TIME_DOUBLE)
self.assertEqual(f_c, ca.dbr.CTRL_DOUBLE)
def test_xArray1(self):
write('Array Test: get(wait=False) / get_complete()')
chid = ca.create_channel(pvnames.double_arrays[0])
val0 = ca.get(chid)
aval = ca.get(chid, wait=False)
self.assertTrue(aval is None)
val1 = ca.get_complete(chid)
self.assertTrue(all(val0 == val1))
def setup_callback(pvname):
def my_cb(pvname=None, value=None, **kw):
sys.stdout.write('get: %s value=%s, kw=%s\n' %
(pvname, str(value), repr(kw)))
sys.stdout.flush()
chid = ca.create_channel(pvname)
return ca.create_subscription(chid, callback=my_cb)
def testA_CreateChidWithConn(self):
write('Simple Test: create chid with conn callback\n')
chid = ca.create_channel(pvnames.int_pv, callback=onConnect)
val = ca.get(chid)
global CONN_DAT
conn = CONN_DAT.get(pvnames.int_pv, None)
self.assertEqual(conn, True)
def test_promote_type(self):
pvn = pvnames.double_pv
chid = ca.create_channel(pvn,connect=True)
write( 'CA promote type (%s)' % (pvn))
f_t = ca.promote_type(chid,use_time=True)
f_c = ca.promote_type(chid,use_ctrl=True)
self.assertEqual(f_t, ca.dbr.TIME_DOUBLE)
self.assertEqual(f_c, ca.dbr.CTRL_DOUBLE)
def test_Connected():
pvn = pvnames.double_pv
chid = ca.create_channel(pvn, connect=True)
isconn = ca.isConnected(chid)
write('CA test Connected (%s) = %s' % (pvn, isconn))
assert isconn
assert ca.state(chid) == ca.dbr.CS_CONN
assert ca.access(chid) == 'read/write'
def testA_CreateChidWithConn(self):
write("Simple Test: create chid with conn callback")
chid = ca.create_channel(pvnames.int_pv, callback=onConnect)
val = ca.get(chid)
global CONN_DAT
conn = CONN_DAT.get(pvnames.int_pv, None)
self.assertEqual(conn, True)
def test_xArray1(self):
write('Array Test: get(wait=False) / get_complete()')
chid = ca.create_channel(pvnames.double_arrays[0])
val0 = ca.get(chid)
aval = ca.get(chid, wait=False)
self.assertTrue(aval is None)
val1 = ca.get_complete(chid)
self.assertTrue(all(val0 == val1))
def test_xArray3():
write('Array Test: get char array as string')
chid = ca.create_channel(pvnames.char_arrays[0])
val = ca.get(chid)
assert isinstance(val, numpy.ndarray)
char_val = ca.get(chid, as_string=True)
assert isinstance(char_val, str)
conv = ''.join([chr(i) for i in val])
assert conv == char_val
def test_xArray3(self):
write('Array Test: get char array as string')
chid = ca.create_channel(pvnames.char_arrays[0])
val = ca.get(chid, count=0)
self.assertTrue(isinstance(val, numpy.ndarray))
char_val = ca.get(chid, as_string=True)
self.assertTrue(isinstance(char_val, str))
conv = ''.join([chr(i) for i in val])
self.assertTrue(conv == char_val)
def get(d, pv_name, size, start, pid):
ch = ca.create_channel(pv_name, connect=False, auto_cb=False)
if ca.connect_channel(ch, timeout=1.0):
d[pv_name] = ca.get(ch, wait=True)
else:
d[pv_name] = 'not connected'
if len(d) == size:
print int(round((time.time() - start) * 1000))
os.kill(pid, signal.SIGTERM)
def testA_GetNonExistentPV(self):
write('Simple Test: get on a non-existent PV')
chid = ca.create_channel('Definitely-Not-A-Real-PV')
val, out = None, False
try:
val = ca.get(chid)
except ca.ChannelAccessException:
out = True
assert(out)
def test_xArray3(self):
write('Array Test: get char array as string')
chid = ca.create_channel(pvnames.char_arrays[0])
val = ca.get(chid)
self.assertTrue(isinstance(val, numpy.ndarray))
char_val = ca.get(chid, as_string=True)
self.assertTrue(isinstance(char_val, str))
conv = ''.join([chr(i) for i in val])
self.assertEqual(conv, char_val)
def test_Enum(self):
pvn = pvnames.enum_pv
chid = ca.create_channel(pvn, connect=True)
write('CA test Enum (%s)\n' % (pvn))
enumstrs = ca.get_enum_strings(chid)
self.failUnless(len(enumstrs) > 1)
self.failUnless(isinstance(enumstrs[0], str))
write('CA EnumStrings (%s) = %s\n' % (pvn, repr(enumstrs)))
self.failUnless(enumstrs, pvnames.enum_pv_strs)
def test_putwait():
'test put with wait'
pvn = pvnames.non_updating_pv
chid = ca.create_channel(pvn, connect=True)
o = ca.put(chid, -1, wait=True)
time.sleep(0.01)
assert ca.get(chid) == -1
ca.put(chid, 2, wait=True)
assert ca.get(chid) == 2
def test_putwait(self):
'test put with wait'
pvn = pvnames.non_updating_pv
chid = ca.create_channel(pvn, connect=True)
o = ca.put(chid, -1, wait=True)
val = ca.get(chid)
self.assertEqual(val, -1)
o = ca.put(chid, 2, wait=True)
val = ca.get(chid)
self.assertEqual(val, 2)
def test_Connected(self):
pvn = pvnames.double_pv
chid = ca.create_channel(pvn,connect=True)
isconn = ca.isConnected(chid)
write( 'CA test Connected (%s) = %s' % (pvn,isconn))
self.assertEqual(isconn,True)
state= ca.state(chid)
self.assertEqual(state,ca.dbr.CS_CONN)
acc = ca.access(chid)
self.assertEqual(acc,'read/write')
def test_putwait(self):
'test put with wait'
pvn = pvnames.non_updating_pv
chid = ca.create_channel(pvn, connect=True)
o = ca.put(chid, -1, wait=True)
val = ca.get(chid)
self.assertEqual(val, -1)
o = ca.put(chid, 2, wait=True)
val = ca.get(chid)
self.assertEqual(val, 2)
def test_Enum(self):
pvn = pvnames.enum_pv
chid = ca.create_channel(pvn,connect=True)
write( 'CA test Enum (%s)' % (pvn))
enumstrs = ca.get_enum_strings(chid)
self.failUnless(len(enumstrs)>1)
self.failUnless(isinstance(enumstrs[0],str))
write( 'CA EnumStrings (%s) = %s' % (pvn,repr(enumstrs)))
self.failUnless(enumstrs,pvnames.enum_pv_strs)
def test_Connected(self):
pvn = pvnames.double_pv
chid = ca.create_channel(pvn,connect=True)
isconn = ca.isConnected(chid)
write( 'CA test Connected (%s) = %s' % (pvn,isconn))
self.assertEqual(isconn,True)
state= ca.state(chid)
self.assertEqual(state,ca.dbr.CS_CONN)
acc = ca.access(chid)
self.assertEqual(acc,'read/write')
def test_ProcPut(self):
pvn = pvnames.enum_pv
chid = ca.create_channel(pvn, connect=True)
write( 'CA test put to PROC Field (%s)' % (pvn))
for input in (1, '1', 2, '2', 0, '0', 50, 1):
ret = None
try:
ret = ca.put(chid, 1)
except:
pass
self.assertIsNot(ret, None)
def test_xArray2(self):
write('Array Test: get fewer than max vals with ca.get(count=0)')
chid = ca.create_channel(pvnames.double_arrays[0])
maxpts = ca.element_count(chid)
npts = max(2, maxpts/2 - 1)
dat = numpy.random.normal(size=npts)
ca.put(chid, dat)
out = ca.get(chid, count=0)
self.assertTrue(isinstance(out, numpy.ndarray))
self.assertTrue(len(out) == npts)
def test_xArray2(self):
write('Array Test: get fewer than max vals with ca.get(count=0)')
chid = ca.create_channel(pvnames.double_arrays[0])
maxpts = ca.element_count(chid)
npts = max(2, maxpts/2 - 1)
dat = numpy.random.normal(size=npts)
ca.put(chid, dat)
out = ca.get(chid, count=0)
self.assertTrue(isinstance(out, numpy.ndarray))
self.assertEqual(len(out), npts)
def test_ProcPut(self):
pvn = pvnames.enum_pv
chid = ca.create_channel(pvn, connect=True)
write( 'CA test put to PROC Field (%s)' % (pvn))
for input in (1, '1', 2, '2', 0, '0', 50, 1):
ret = None
try:
ret = ca.put(chid, 1)
except:
pass
self.assertIsNot(ret, None)
def test_ProcPut(self):
pvn = pvnames.enum_pv
chid = ca.create_channel(pvn, connect=True)
write("CA test put to PROC Field (%s)" % (pvn))
for input in (1, "1", 2, "2", 0, "0", 50, 1):
ret = None
try:
ret = ca.put(chid, 1)
except:
pass
self.assertNotEqual(ret, None)
def testCtrlStruct_ValueMonitor(self):
'''Monitor PV (value events) through GW - change value and properties directly - check CTRL structure consistency'''
diffs = []
# gwcachetest is an ai record with full set of alarm limits: -100 -10 10 100
gw = ca.create_channel("gateway:gwcachetest")
connected = ca.connect_channel(gw, timeout=.5)
self.assertTrue(connected, "Could not connect to gateway channel " + ca.name(gw))
(gw_cbref, gw_uaref, gw_eventid) = ca.create_subscription(gw, mask=dbr.DBE_VALUE, use_ctrl=True, callback=self.onChangeGW)
ioc = ca.create_channel("ioc:gwcachetest")
connected = ca.connect_channel(ioc, timeout=.5)
self.assertTrue(connected, "Could not connect to ioc channel " + ca.name(ioc))
(ioc_cbref, ioc_uaref, ioc_eventid) = ca.create_subscription(ioc, mask=dbr.DBE_VALUE, use_ctrl=True, callback=self.onChangeIOC)
# set value on IOC
ioc_value = ca.create_channel("ioc:gwcachetest")
ca.put(ioc_value, 10.0, wait=True)
time.sleep(.1)
self.assertTrue(self.eventsReceivedIOC == self.eventsReceivedGW,
"After setting value, no. of received updates differ: GW {0}, IOC {1}"
.format(str(self.eventsReceivedGW), str(self.eventsReceivedIOC)))
(are_diff, diffs) = self.compareStructures()
self.assertTrue(are_diff == False,
"At update {0} (change value), received structure updates differ:\n\t{1}"
.format(str(self.eventsReceivedIOC), "\n\t".join(diffs)))
# set property on IOC
ioc_hihi = ca.create_channel("ioc:gwcachetest.HIHI")
ca.put(ioc_hihi, 123.0, wait=True)
ca.put(ioc_value, 11.0, wait=True) # trigger update
time.sleep(.1)
self.assertTrue(self.eventsReceivedIOC == self.eventsReceivedGW,
"After setting property, no. of received updates differ: GW {0}, IOC {1}"
.format(str(self.eventsReceivedGW), str(self.eventsReceivedIOC)))
(are_diff, diffs) = self.compareStructures()
self.assertTrue(are_diff == False,
"At update {0} (change property), received structure updates differ:\n\t{1}"
.format(str(self.eventsReceivedIOC), "\n\t".join(diffs)))
def test_xArray2(self):
write('Array Test: get fewer than max vals using ca.get(count=0)')
chid = ca.create_channel(pvnames.double_arrays[0])
maxpts = ca.element_count(chid)
npts = int(max(2, maxpts/2.3 - 1))
dat = numpy.random.normal(size=npts)
ca.put(chid, dat)
out1 = ca.get(chid)
self.assertTrue(isinstance(out1, numpy.ndarray))
self.assertEqual(len(out1), maxpts)
out2 = ca.get(chid, count=0)
self.assertTrue(isinstance(out2, numpy.ndarray))
self.assertEqual(len(out2), npts)
def test_subscription_double(self):
pvn = pvnames.updating_pv1
chid = ca.create_channel(pvn,connect=True)
cb, uarg, eventID = ca.create_subscription(chid, callback=onChanges)
start_time = time.time()
global CHANGE_DAT
while time.time()-start_time < 5.0:
time.sleep(0.01)
if CHANGE_DAT.get(pvn, None) is not None:
break
val = CHANGE_DAT.get(pvn, None)
ca.clear_subscription(eventID)
self.assertNotEqual(val, None)
def test_subscription_double(self):
pvn = pvnames.updating_pv1
chid = ca.create_channel(pvn,connect=True)
cb, uarg, eventID = ca.create_subscription(chid, callback=onChanges)
start_time = time.time()
global CHANGE_DAT
while time.time()-start_time < 5.0:
time.sleep(0.01)
if CHANGE_DAT.get(pvn, None) is not None:
break
val = CHANGE_DAT.get(pvn, None)
ca.clear_subscription(eventID)
self.assertIsNot(val, None)
def test_subscription_str():
pvn = pvnames.updating_str1
write(" Subscription on string: %s " % pvn)
chid = ca.create_channel(pvn, connect=True)
cb, uarg, eventID = ca.create_subscription(chid, callback=onChanges)
start_time = time.time()
global CHANGE_DAT
while time.time() - start_time < 3.0:
time.sleep(0.01)
ca.put(chid, "%.1f" % (time.time() - start_time))
if CHANGE_DAT.get(pvn, None) is not None:
break
assert CHANGE_DAT.get(pvn, None) is not None
def __init__(self, visit_id = None):
###import config file
self.pypline_dir = os.path.dirname(os.path.realpath(__file__))
with open(self.pypline_dir+'/config.yaml', 'r') as ymlfile:
self.myconfig = yaml.load(ymlfile)
###connect to the logger
self.logger = myLogger(os.path.basename(__file__))
###set some parameters
self.chid = ca.create_channel(self.myconfig['settings']['visit_id_pv'], connect=True)
self.visit_id = visit_id
self.type = 'visit'
def test_Array0(self):
write('Array Test: get double array as numpy array, ctypes Array, and list')
chid = ca.create_channel(pvnames.double_arrays[0])
aval = ca.get(chid)
cval = ca.get(chid, as_numpy=False)
self.assertTrue(isinstance(aval, numpy.ndarray))
self.assertTrue(len(aval) > 2)
self.assertTrue(isinstance(cval, ctypes.Array))
self.assertTrue(len(cval) > 2)
lval = list(cval)
self.assertTrue(isinstance(lval, list))
self.assertTrue(len(lval) > 2)
self.assertTrue(lval == list(aval))
def test_xArray2(self):
write('Array Test: get fewer than max vals using ca.get(count=0)')
chid = ca.create_channel(pvnames.double_arrays[0])
maxpts = ca.element_count(chid)
npts = int(max(2, maxpts/2.3 - 1))
write('max points is %s' % (maxpts, ))
dat = numpy.random.normal(size=npts)
write('setting array to a length of npts=%s' % (npts, ))
ca.put(chid, dat)
out1 = ca.get(chid)
self.assertTrue(isinstance(out1, numpy.ndarray))
self.assertEqual(len(out1), npts)
out2 = ca.get(chid, count=0)
self.assertTrue(isinstance(out2, numpy.ndarray))
self.assertEqual(len(out2), npts)
def test_Array0(self):
write('Array Test: get double array as numpy array, ctypes Array, and list')
chid = ca.create_channel(pvnames.double_arrays[0])
aval = ca.get(chid)
cval = ca.get(chid, as_numpy=False)
self.assertTrue(isinstance(aval, numpy.ndarray))
self.assertTrue(len(aval) > 2)
self.assertTrue(isinstance(cval, ctypes.Array))
self.assertTrue(len(cval) > 2)
lval = list(cval)
self.assertTrue(isinstance(lval, list))
self.assertTrue(len(lval) > 2)
self.assertTrue(lval == list(aval))
def test_DoubleVal():
pvn = pvnames.double_pv
chid = ca.create_channel(pvn, connect=True)
cdict = ca.get_ctrlvars(chid)
write('CA testing CTRL Values for a Double (%s)' % (pvn))
assert 'units' in cdict
assert 'precision' in cdict
assert 'severity' in cdict
assert len(ca.host_name(chid)) > 2
assert ca.element_count(chid) == 1
assert ca.field_type(chid) == ca.dbr.DOUBLE
assert ca.get_precision(chid) == pvnames.double_pv_prec
assert ca.get_ctrlvars(chid)['units'] == pvnames.double_pv_units
assert ca.access(chid).startswith('read')
def testA_CreateChid_CheckTypeCount(self):
write('Simple Test: create chid, check count, type, host, and access')
chid = ca.create_channel(pvnames.double_pv)
ret = ca.connect_channel(chid)
ca.pend_event(1.e-3)
ftype = ca.field_type(chid)
count = ca.element_count(chid)
host = ca.host_name(chid)
rwacc = ca.access(chid)
self.assertNotEqual(chid, None)
self.assertNotEqual(host, None)
self.assertEqual(count, 1)
self.assertEqual(ftype, 6)
self.assertEqual(rwacc,'read/write')
def test_CreateChid_CheckTypeCount():
write('Simple Test: create chid, check count, type, host, and access')
chid = ca.create_channel(pvnames.double_pv)
ret = ca.connect_channel(chid)
ca.pend_event(1.e-3)
ftype = ca.field_type(chid)
count = ca.element_count(chid)
host = ca.host_name(chid)
rwacc = ca.access(chid)
assert chid is not None
assert host is not None
assert count == 1
assert ftype == 6
assert rwacc == 'read/write'
def batch_get(pv_list):
chids = {}
pvdata = {}
for name in pv_list:
chid = ca.create_channel(name, connect=False, auto_cb=False)
chids[name] = chid
for name, chid in chids.items():
ca.connect_channel(chid)
ca.poll()
for name, chid in chids.items():
ca.get(chid, wait=False)
ca.poll()
for name, chid in chids.items():
val = ca.get_complete(chid)
pvdata[name] = val
return pvdata
def testA_CreateChid_CheckTypeCount(self):
write('Simple Test: create chid, check count, type, host, and access')
chid = ca.create_channel(pvnames.double_pv)
ret = ca.connect_channel(chid)
ca.pend_event(1.e-3)
ftype = ca.field_type(chid)
count = ca.element_count(chid)
host = ca.host_name(chid)
rwacc = ca.access(chid)
self.assertIsNot(chid, None)
self.assertIsNot(host, None)
self.assertEqual(count, 1)
self.assertEqual(ftype, 6)
self.assertEqual(rwacc,'read/write')
def my_node(node,depth,mode='elem',result=None):
#This must have the args defined here, and may have a section for each of the 3 modes:
#mode='init': Do something before porcessing a node
#mode='elem': Called for each element in the node. Can return a value which will be added to the result[] list.
#mode='end': Called at the end to process the result[] list for the node
global pvname
global nChid
if mode == 'elem':
fullpv=node+":"+pvname #create full pvname
chid = ca.create_channel(fullpv, connect=False, auto_cb=False) #create channel
print fullpv,chid
allnames.append(fullpv) #store name and channel
allids.append(chid)
nChid += 1
def my_node(node,depth,mode='elem',result=None):
#This must have the args defined here, and may have a section for each of the 3 modes:
#mode='init': Do something before porcessing a node
#mode='elem': Called for each element in the node. Can return a value which will be added to the result[] list.
#mode='end': Called at the end to process the result[] list for the node
global pvname
global nChid
if mode == 'elem':
fullpv=node+":"+pvname #create full pvname
chid = ca.create_channel(fullpv, connect=False, auto_cb=False) #create channel
print fullpv,chid
allnames.append(fullpv) #store name and channel
allids.append(chid)
nChid += 1
def test_Values(self):
write("CA test Values (compare 5 values with caget)")
os.system("rm ./caget.tst")
vals = {}
pause_updating()
for pvn in (pvnames.str_pv, pvnames.int_pv, pvnames.float_pv, pvnames.enum_pv, pvnames.long_pv):
os.system("caget -n -f5 %s >> ./caget.tst" % pvn)
chid = ca.create_channel(pvn)
ca.connect_channel(chid)
vals[pvn] = ca.get(chid)
rlines = open("./caget.tst", "r").readlines()
for line in rlines:
pvn, sval = [i.strip() for i in line[:-1].split(" ", 1)]
tval = str(vals[pvn])
if pvn in (pvnames.float_pv, pvnames.double_pv): # use float precision!
tval = "%.5f" % vals[pvn]
self.assertEqual(tval, sval)
resume_updating()
def test_subscription_str(self):
pvn = pvnames.updating_str1
write(" Subscription on string: %s " % pvn)
chid = ca.create_channel(pvn,connect=True)
cb, uarg, eventID = ca.create_subscription(chid, callback=onChanges)
start_time = time.time()
global CHANGE_DAT
while time.time()-start_time < 3.0:
time.sleep(0.01)
ca.put(chid, "%.1f" % (time.time()-start_time) )
if CHANGE_DAT.get(pvn, None) is not None:
break
val = CHANGE_DAT.get(pvn, None)
# ca.clear_subscription(eventID)
self.assertNotEqual(val, None)
time.sleep(0.2)
def my_node(node,depth,mode='elem',result=None):
#This must have the args defined here, and may have a section for each of the 3 modes:
#mode='init': Do something before porcessing a node
#mode='elem': Called for each element in the node. Can return a value which will be added to the result[] list.
#mode='end': Called at the end to process the result[] list for the node
global pvdata
global pvf
global mon_line
global pvfull
if mode == 'elem':
fullpv=node+":"+pvdata[mon_line][pvf.NAME] #create full pvname
chid = ca.create_channel(fullpv, connect=False, auto_cb=False) #create channel
pvdata[mon_line][pvf.ID].append(chid) #save the chid
pvfull.append(fullpv) #save the name temporarily
def test_Values(self):
write( 'CA test Values (compare 5 values with caget)')
os.system('rm ./caget.tst')
vals = {}
with no_simulator_updates():
for pvn in (pvnames.str_pv, pvnames.int_pv,
pvnames.float_pv, pvnames.enum_pv,
pvnames.long_pv):
os.system('caget -n -f5 %s >> ./caget.tst' % pvn)
chid = ca.create_channel(pvn)
ca.connect_channel(chid)
vals[pvn] = ca.get(chid)
rlines = open('./caget.tst', 'r').readlines()
for line in rlines:
pvn, sval = [i.strip() for i in line[:-1].split(' ', 1)]
tval = str(vals[pvn])
if pvn in (pvnames.float_pv,pvnames.double_pv):
# use float precision!
tval = "%.5f" % vals[pvn]
self.assertEqual(tval, sval)
def test_subscription_custom(self):
pvn = pvnames.updating_pv1
chid = ca.create_channel(pvn, connect=True)
global change_count
change_count = 0
def my_callback(pvname=None, value=None, **kws):
write( ' Custom Callback %s value=%s' %(pvname, str(value)))
global change_count
change_count = change_count + 1
cb, uarg, eventID = ca.create_subscription(chid, callback=my_callback)
start_time = time.time()
while time.time()-start_time < 2.0:
time.sleep(0.01)
ca.clear_subscription(eventID)
time.sleep(0.2)
self.assertTrue(change_count > 2)
