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 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_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 ReturnVisitID(self):
try:
if self.visit_id == None:
if ca.isConnected(self.chid):
return ca.get(self.chid)
else:
raise EnvironmentError('Cannot connect to epics')
else:
return self.visit_id
except Exception as ex:
self.conn.rollback()
template = "An exception of type {0} occured. {1!r}"
message = template.format(type(ex).__name__, ex.args)
self.logger.error(message)