def setup_method(self, method):
if testSerialPort:
serialPort = serial.Serial(port=testSerialPort,
baudrate=57600,
timeout=0)
else:
serialPort = []
self.nodeParams = NodeParams(configFile=configFilePath)
self.nodeParams.commStartTime = time.time()
self.nodeParams.config.commConfig['transmitSlot'] = 1
self.radio = Radio(
serialPort, {
'uartNumBytesToRead':
self.nodeParams.config.uartNumBytesToRead,
'rxBufferSize': 2000
})
commProcessor = CommProcessor([TDMACmdProcessor, TestCmdProcessor],
self.nodeParams)
msgParser = SLIPMsgParser(
{'parseMsgMax': self.nodeParams.config.parseMsgMax})
self.tdmaComm = TDMAComm(commProcessor, self.radio, msgParser,
self.nodeParams)
self.tdmaComm.nodeParams.frameStartTime = time.time()
def setup_method(self, method):
# Create NodeConfig instance
self.nodeConfig = NodeConfig(configFilePath)
if method.__name__ != "test_init":
self.nodeParams = NodeParams(config=self.nodeConfig) # Create NodeParams instance
def test_init(self):
"""Test NodeParams init function."""
# Test that init function loads node configuration from file
print("Testing init with configFile")
nodeParams = NodeParams(configFile=configFilePath)
assert (nodeParams.config.__dict__ == self.nodeConfig.__dict__)
# Test that init function loads node configuration from provided config
nodeParams = NodeParams(config=self.nodeConfig)
assert (nodeParams.config.__dict__ == self.nodeConfig.__dict__)
def setup_method(self, method):
self.nodeStatus = [NodeState(i + 1) for i in range(5)]
self.nodeParams = NodeParams(configFile=configFilePath)
msgParser = MsgParser(
{'parseMsgMax': self.nodeParams.config.parseMsgMax}, SLIPMsg(256))
radio = Radio(
[], {
'uartNumBytesToRead':
self.nodeParams.config.uartNumBytesToRead,
'rxBufferSize': 2000
})
self.comm = TDMAComm([TDMACmdProcessor], radio, msgParser,
self.nodeParams)
class TestNodeParams:
def setup_method(self, method):
# Create NodeConfig instance
self.nodeConfig = NodeConfig(configFilePath)
if method.__name__ != "test_init":
self.nodeParams = NodeParams(
config=self.nodeConfig) # Create NodeParams instance
def test_init(self):
"""Test NodeParams init function."""
# Test that init function loads node configuration from file
print("Testing init with configFile")
nodeParams = NodeParams(configFile=configFilePath)
assert (nodeParams.config.__dict__ == self.nodeConfig.__dict__)
# Test that init function loads node configuration from provided config
nodeParams = NodeParams(config=self.nodeConfig)
assert (nodeParams.config.__dict__ == self.nodeConfig.__dict__)
def test_getCmdCounter(self):
"""Test NodeParams command counter get function."""
# Test getting random command counter
counter = self.nodeParams.get_cmdCounter()
assert (counter >= 1) # value within range
assert (counter <= 65536) # value within range
def setup_method(self, method):
# Create CommProcessor instance
nodeParams = NodeParams(configFile=configFilePath)
self.commProcessor = CommProcessor([PixhawkCmdProcessor], nodeParams)
self.serialComm = SerialComm([], [], nodeParams.config)
# Truth data
self.crcLength = 2
class TestNodeCmdProcessor:
def setup_method(self, method):
self.nodeStatus = [NodeState(i + 1) for i in range(5)]
self.nodeParams = NodeParams(configFile=configFilePath)
msgParser = MsgParser(
{'parseMsgMax': self.nodeParams.config.parseMsgMax}, SLIPMsg(256))
radio = Radio(
[], {
'uartNumBytesToRead':
self.nodeParams.config.uartNumBytesToRead,
'rxBufferSize': 2000
})
self.comm = SerialComm([NodeCmdProcessor], self.nodeParams, radio,
msgParser)
def test_processMsg(self):
"""Test processMsg method of NodeCmdProcessor."""
# Test processing of all NodeCmds
for cmdId in cmdsToTest:
cmdMsg = testCmds[cmdId].serialize()
print(cmdId)
assert (self.comm.processMsg(cmdMsg,
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
}) == True)
if cmdId == NodeCmds['NoOp']:
pass
elif cmdId == NodeCmds['ParamUpdate']:
assert (self.nodeParams.config.parseMsgMax == unpack(
'=H', testCmds[cmdId].cmdData['paramValue'])[0])
elif cmdId == NodeCmds['ConfigUpdate']:
assert (self.nodeParams.newConfig != None
) # new config staged for updating
cmdResponse = None
for entry in self.nodeParams.cmdResponse:
if (entry['cmdId'] == NodeCmds['ConfigUpdate']):
cmdResponse = entry
break
assert (cmdResponse != None)
assert (cmdResponse['cmdResponse'] == 1)
def test_malformedCmd(self):
# Test command with improper message contents
badMsg = packHeader(
createHeader([
CmdDict[NodeCmds['GCSCmd']].header,
[NodeCmds['GCSCmd'], 0,
self.nodeParams.get_cmdCounter()]
])) # header only
assert (self.comm.processMsg(badMsg,
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
}) == False)
def setup_method(self, method):
from mesh.generic.xbeeRadio import XbeeRadio
self.nodeParams = NodeParams(configFile=configFilePath)
self.xbeeRadio = XbeeRadio(
[], {
'uartNumBytesToRead':
self.nodeParams.config.uartNumBytesToRead,
'rxBufferSize': 2000
}, "P8_12")
def setup_method(self, method):
self.nodeStatus = [NodeState(i + 1) for i in range(5)]
self.nodeParams = NodeParams(configFile=configFilePath)
radio = Radio(
[], {
'uartNumBytesToRead':
self.nodeParams.config.uartNumBytesToRead,
'rxBufferSize': 2000
})
self.comm = SerialComm([GndCmdProcessor], self.nodeParams, radio, [])
def setup_method(self, method):
self.nodeParams = NodeParams(configFile=configFilePath)
self.nodeParams.config.commConfig['transmitSlot'] = 1
self.radio = Radio(None, {'uartNumBytesToRead': self.nodeParams.config.uartNumBytesToRead, 'rxBufferSize': 2000})
msgParser = MsgParser({'parseMsgMax': self.nodeParams.config.parseMsgMax}, HDLCMsg(256))
self.tdmaComm = TDMAComm([TDMACmdProcessor], self.radio, msgParser, self.nodeParams)
# Test article
self.meshController = MeshController(self.nodeParams, self.tdmaComm)
def setup_method(self, method):
self.serialPort = serial.Serial(port=testSerialPort,
baudrate=57600,
timeout=0)
self.nodeParams = NodeParams(configFile=configFilePath)
self.li1Radio = Li1Radio(
self.serialPort, {
'uartNumBytesToRead':
self.nodeParams.config.uartNumBytesToRead,
'rxBufferSize': 2000
})
def setup_method(self, method):
self.nodeParams = NodeParams(configFile=configFilePath)
self.serialPort = serial.Serial(port=testSerialPort,
baudrate=57600,
timeout=0)
self.radio = Radio(
self.serialPort, {
'uartNumBytesToRead':
self.nodeParams.config.uartNumBytesToRead,
'rxBufferSize': 2000
})
self.serialComm = SerialComm([NodeCmdProcessor], self.nodeParams,
self.radio, [])
def setup_method(self, method):
self.nodeParams = NodeParams(configFile=configFilePath)
self.serialPort = serial.Serial(port=testSerialPort,
baudrate=57600,
timeout=0)
self.radio = Radio(
self.serialPort, {
'uartNumBytesToRead':
self.nodeParams.config.uartNumBytesToRead,
'rxBufferSize': 2000
})
msgParser = SLIPMsgParser(
{'parseMsgMax': self.nodeParams.config.parseMsgMax})
self.comm = SerialComm([], self.nodeParams, self.radio, msgParser)
def setup_method(self, method):
if testSerialPort:
serialPort = serial.Serial(port=testSerialPort, baudrate=57600, timeout=0)
else:
serialPort = []
self.nodeParams = NodeParams(configFile=configFilePath)
self.nodeParams.config.commConfig['transmitSlot'] = 1
self.radio = Radio(serialPort, {'uartNumBytesToRead': self.nodeParams.config.uartNumBytesToRead, 'rxBufferSize': 2000})
msgParser = MsgParser({'parseMsgMax': self.nodeParams.config.parseMsgMax}, HDLCMsg(256))
self.tdmaComm = TDMAComm([TDMACmdProcessor], self.radio, msgParser, self.nodeParams)
# Flush radio
self.radio.serial.read(100)
def setup_method(self, method):
self.nodeParams = NodeParams(configFile=configFilePath)
self.serialPort = serial.Serial(port=testSerialPort,
baudrate=57600,
timeout=0)
commProcessor = CommProcessor([PixhawkCmdProcessor], self.nodeParams)
radio = Radio(
self.serialPort, {
'uartNumBytesToRead':
self.nodeParams.config.uartNumBytesToRead,
'rxBufferSize': 2000
})
msgParser = SLIPMsgParser(
{'parseMsgMax': self.nodeParams.config.parseMsgMax})
self.nodeComm = NodeComm(commProcessor, radio, msgParser,
self.nodeParams)
pass
def setup_method(self, method):
self.nodeParams = NodeParams(configFile=configFilePath)
# Setup comms
self.serialConfig = {
'uartNumBytesToRead': self.nodeParams.config.uartNumBytesToRead,
'rxBufferSize': self.nodeParams.config.rxBufferSize
}
self.serialPort = serial.Serial(port=testSerialPort,
baudrate=57600,
timeout=0)
radio = Radio(self.serialPort, self.serialConfig)
nodeComm = SerialComm([], radio, [])
#self.FCSerialPort = serial.Serial(port=testSerialPort, baudrate=57600, timeout=0)
#radio = Radio(self.FCSerialPort, serialConfig)
FCComm = SerialComm([], radio, [])
# Create executive
self.nodeExecutive = NodeExecutive(self.nodeParams, None, [nodeComm],
FCComm, [])
class TestTDMACmdProcessor:
def setup_method(self, method):
self.nodeStatus = [NodeState(i + 1) for i in range(5)]
self.nodeParams = NodeParams(configFile=configFilePath)
msgParser = MsgParser(
{'parseMsgMax': self.nodeParams.config.parseMsgMax}, SLIPMsg(256))
radio = Radio(
[], {
'uartNumBytesToRead':
self.nodeParams.config.uartNumBytesToRead,
'rxBufferSize': 2000
})
self.comm = TDMAComm([TDMACmdProcessor], radio, msgParser,
self.nodeParams)
def test_validateBlockTxRequest(self):
"""Test validateBlockTxRequest method of TDMACmdProcessor."""
# Test request rejected if start time passed
contents = {
'startTime': time.time() - 1.0,
'length': self.nodeParams.config.commConfig['maxTxBlockSize']
}
assert (validateBlockTxRequest(contents, [], self.nodeParams) == False)
# Test request rejected if block too long
contents = {
'startTime': time.time() + 1.0,
'length': self.nodeParams.config.commConfig['maxTxBlockSize'] + 1
}
assert (validateBlockTxRequest(contents, [], self.nodeParams) == False)
# Test for request acceptance
contents = {
'startTime': time.time() + 1.0,
'length': self.nodeParams.config.commConfig['maxTxBlockSize']
}
assert (validateBlockTxRequest(contents, [], self.nodeParams) == True)
def test_processMsg(self):
"""Test processMsg method of TDMACmdProcessor."""
# Test processing of all TDMACmds
for cmdId in cmdsToTest:
self.comm.networkMsgQueue = [
] # clear command queue to check for additions after command processing
assert (self.comm.processMsg(testCmds[cmdId].serialize(),
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
}) == True)
if cmdId == TDMACmds['TimeOffset']:
sourceId = testCmds[cmdId].header['header']['sourceId']
assert (self.nodeStatus[sourceId - 1].timeOffset ==
testCmds[cmdId].cmdData['nodeStatus'].timeOffset
) # verify time offset parsed correctly
elif cmdId == TDMACmds['MeshStatus']:
assert (self.comm.commStartTime ==
testCmds[cmdId].cmdData['commStartTimeSec']
) # comm start time stored
elif cmdId == TDMACmds['LinkStatus']:
msgNodeId = testCmds[cmdId].cmdData['nodeId']
for i in range(0, self.nodeParams.config.maxNumNodes):
assert (self.nodeParams.linkStatus[msgNodeId - 1][i] ==
testCmds[cmdId].cmdData['linkStatus'][msgNodeId -
1][i])
elif cmdId == TDMACmds['ConfigUpdate']:
assert (self.nodeParams.newConfig != None
) # new config staged for updating
assert (len(self.comm.networkMsgQueue) > 0)
elif cmdId == TDMACmds['NetworkRestart']:
assert (len(self.comm.networkMsgQueue) > 0)
# Resend and test that commStartTime is not updated once it has previously been set
cmdId = TDMACmds['MeshStatus']
self.comm.commStartTime = testCmds[cmdId].cmdData[
'commStartTimeSec'] - 1
assert (self.comm.processMsg(testCmds[cmdId].serialize(),
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
}) == True)
assert (self.comm.commStartTime !=
testCmds[cmdId].cmdData['commStartTimeSec']
) # comm start time should not have been updated
def test_blockTxCmdsProcessing(self):
"""Test processing of block transmit related commands."""
return # skip this test
self.comm.commStartTime = self.nodeParams.clock.getTime() - 1.0
blockReqID = random.randint(1, 255) # just a random "unique" number
startTime = int(self.nodeParams.clock.getTime() + 10.0)
length = self.nodeParams.config.commConfig['maxTxBlockSize']
txNode = 1
## TDMACmds['BlockTxRequest']
cmdMsg = Command(TDMACmds['BlockTxRequest'], {
'blockReqID': blockReqID,
'startTime': startTime,
'length': length
}, [
TDMACmds['BlockTxRequest'], txNode,
self.nodeParams.get_cmdCounter()
]).serialize(self.nodeParams.clock.getTime())
# Process and check results
assert (self.comm.processMsg(cmdMsg,
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
}) == True)
assert (len(self.comm.radio.txBuffer) == calcsize(
CmdDict[TDMACmds['BlockTxRequestResponse']].packFormat) +
calcsize(headers['NodeHeader']['format'])) # response sent
assert (self.comm.blockTxStatus['blockReqID'] == blockReqID)
assert (self.comm.blockTxStatus['status'] == TDMABlockTxStatus.pending)
assert (self.comm.blockTxStatus['txNode'] == txNode)
assert (self.comm.blockTxStatus['startTime'] == startTime)
assert (self.comm.blockTxStatus['length'] == length)
## TDMACmds['BlockTxConfirmed']
time.sleep(0.01)
cmdMsg = Command(TDMACmds['BlockTxConfirmed'], {
'blockReqID': blockReqID
}, [
TDMACmds['BlockTxConfirmed'], txNode,
self.nodeParams.get_cmdCounter()
]).serialize(self.nodeParams.clock.getTime())
assert (self.comm.processMsg(cmdMsg,
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
}) == True)
assert (
self.comm.blockTxStatus['status'] == TDMABlockTxStatus.confirmed
) # status updated to confirmed
## TDMACmds['BlockTxStatus']
self.comm.resetBlockTxStatus()
time.sleep(0.01)
cmdMsg = Command(TDMACmds['BlockTxStatus'], {
'blockReqID': blockReqID,
'startTime': startTime,
'length': length
}, [
TDMACmds['BlockTxStatus'], txNode,
self.nodeParams.get_cmdCounter()
]).serialize(self.nodeParams.clock.getTime())
# Check status updated
assert (self.comm.processMsg(cmdMsg,
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
}) == True)
assert (len(self.comm.radio.txBuffer) == calcsize(
CmdDict[TDMACmds['BlockTxRequestResponse']].packFormat) +
calcsize(headers['NodeHeader']['format'])) # response sent
assert (self.comm.blockTxStatus['blockReqID'] == blockReqID)
assert (
self.comm.blockTxStatus['status'] == TDMABlockTxStatus.confirmed)
assert (self.comm.blockTxStatus['txNode'] == txNode)
assert (self.comm.blockTxStatus['startTime'] == startTime)
assert (self.comm.blockTxStatus['length'] == length)
# Check status updated to confirmed if only pending
time.sleep(0.01)
cmdMsg = Command(TDMACmds['BlockTxStatus'], {
'blockReqID': blockReqID,
'startTime': startTime,
'length': length
}, [
TDMACmds['BlockTxStatus'], txNode,
self.nodeParams.get_cmdCounter()
]).serialize(self.nodeParams.clock.getTime()) # update command counter
self.comm.blockTxStatus['status'] = TDMABlockTxStatus.pending
assert (self.comm.processMsg(cmdMsg,
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
}) == True)
assert (
self.comm.blockTxStatus['status'] == TDMABlockTxStatus.confirmed)
## TDMACmds['BlockTxRequestResponse']
time.sleep(0.01)
self.comm.resetBlockTxStatus()
self.comm.blockTxStatus[
'txNode'] = self.nodeParams.config.nodeId # this node requested block transfer
self.comm.blockTxStatus['status'] = TDMABlockTxStatus.pending
cmdMsg = Command(TDMACmds['BlockTxRequestResponse'], {
'blockReqID': blockReqID,
"accept": True
}, [
TDMACmds['BlockTxRequestResponse'], 1,
self.nodeParams.get_cmdCounter()
]).serialize(self.nodeParams.clock.getTime())
print(self.nodeParams.config.nodeId)
self.nodeParams.nodeStatus[
0].present = True # mark another node as present
self.comm.populateBlockResponseList() # create block response list
# Test acceptance marked
assert (self.comm.processMsg(cmdMsg,
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
}) == True)
assert (self.comm.blockTxStatus['blockResponseList'][1] == True)
# Test rejection marked
time.sleep(0.01)
cmdMsg = Command(TDMACmds['BlockTxRequestResponse'], {
'blockReqID': blockReqID,
"accept": False
}, [
TDMACmds['BlockTxRequestResponse'], 1,
self.nodeParams.get_cmdCounter()
]).serialize(self.nodeParams.clock.getTime())
assert (self.comm.processMsg(cmdMsg,
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
}) == True)
assert (self.comm.blockTxStatus['blockResponseList'][1] == False)
def __init__(self, configFile, meshNum, runFlag):
super().__init__(name="CommProcess")
# Node control run flag
self.nodeControlRunFlag = runFlag
# Configuration
self.nodeParams = NodeParams(configFile=configFile)
# Node/Comm interface
interfaceConfig = {
'uartNumBytesToRead': self.nodeParams.config.uartNumBytesToRead,
'rxBufferSize': self.nodeParams.config.rxBufferSize,
'ipAddr': self.nodeParams.config.interface['nodeCommIntIP'],
'readPort': self.nodeParams.config.interface['commRdPort'],
'writePort': self.nodeParams.config.interface['commWrPort']
}
#self.interface = SerialComm([], UDPRadio(interfaceConfig), SLIPMsgParser({'parseMsgMax': self.nodeParams.config.parseMsgMax}))
self.interface = SerialComm(
[], self.nodeParams, UDPRadio(interfaceConfig),
MsgParser({'parseMsgMax': self.nodeParams.config.parseMsgMax},
SLIPMsg(256))) # UDP connection to node control process
# Interprocess data package (Google protocol buffer interface to node control process)
self.dataPackage = NodeThreadMsg()
self.cmdTxLog = {}
self.lastNodeCmdTime = []
## Create comm object
# Serial connection
ser = serial.Serial(port=self.nodeParams.config.meshDevices[meshNum],
baudrate=self.nodeParams.config.meshBaudrate,
timeout=0)
# Radio
radioConfig = {
'uartNumBytesToRead': self.nodeParams.config.uartNumBytesToRead,
'rxBufferSize': self.nodeParams.config.rxBufferSize
}
if (self.nodeParams.config.commConfig['fpga'] == True):
from mesh.generic.fpgaRadio import FPGARadio
radio = FPGARadio(ser, radioConfig)
else:
if self.nodeParams.config.radios[meshNum] == "Xbee":
radio = XbeeRadio(ser, radioConfig, "P8_12")
elif self.nodeParams.config.radios[meshNum] == "Li-1":
radio = Li1Radio(ser, radioConfig)
# Message parser
parserConfig = {'parseMsgMax': self.nodeParams.config.parseMsgMax}
if self.nodeParams.config.msgParsers[meshNum] == "HDLC":
msgParser = MsgParser(parserConfig, HDLCMsg(256))
elif self.nodeParams.config.msgParsers[meshNum] == "standard":
msgParser = MsgParser(parserConfig)
# Create comm
if (self.nodeParams.config.commConfig['fpga'] == True):
from mesh.generic.tdmaComm_fpga import TDMAComm_FPGA as TDMAComm
else:
from mesh.generic.tdmaComm import TDMAComm
self.comm = TDMAComm([], radio, msgParser, self.nodeParams)
# Node control run time bounds
if (self.nodeParams.config.commConfig['fpga'] == False
): # only needed for software-controlled comm
if self.comm.transmitSlot == 1: # For first node, run any time after transmit slot
self.maxNodeControlTime = self.comm.frameLength - self.comm.slotLength
self.minNodeControlTime = self.comm.slotLength
else: # For other nodes, avoid running near transmit slot
self.minNodeControlTime = (
self.comm.transmitSlot - 2
) * self.comm.slotLength # don't run within 1 slot of transmit
self.maxNodeControlTime = self.comm.transmitSlot * self.comm.slotLength
import time
import struct
from collections import namedtuple
from mesh.generic.tdmaState import TDMAStatus
from mesh.generic.cmdDict import CmdDict
from mesh.generic.nodeConfig import ParamId
from mesh.generic.cmds import NodeCmds, TDMACmds, GndCmds
from mesh.generic.commandMsg import CommandMsg
from mesh.generic.command import Command
from mesh.generic.nodeHeader import createHeader
from mesh.generic.nodeParams import NodeParams
from mesh.generic.nodeState import NodeState, LinkStatus
from unittests.testConfig import configFilePath
nodeParams = NodeParams(configFile=configFilePath)
# TestCmd type
TestCmd = namedtuple('TestCmd', ['cmdData', 'body', 'header'])
# Node configuration
nodeId = 1
cmdCounter = 11
# Test commands dictionary
testCmds = dict()
### NodeCmds
# NodeCmds['NoOp']
cmdId = NodeCmds['NoOp']
cmdData = {}
cmd = Command(cmdId, cmdData, [cmdId, nodeId, nodeParams.get_cmdCounter()])
def __init__(self, configFile, runFlag):
super().__init__(name="NodeControlProcess", )
# Run flag
self.runFlag = runFlag
# Configuration
nodeParams = NodeParams(configFile=configFile)
# Flight computer serial port
FCSer = serial.Serial(port=nodeParams.config.FCCommDevice,
baudrate=nodeParams.config.FCBaudrate,
timeout=0)
# Create radios
radios = []
radioConfig = {
'uartNumBytesToRead': nodeParams.config.uartNumBytesToRead,
'rxBufferSize': nodeParams.config.rxBufferSize,
'ipAddr': nodeParams.config.interface['nodeCommIntIP'],
'readPort': nodeParams.config.interface['commWrPort'],
'writePort': nodeParams.config.interface['commRdPort']
}
for i in range(nodeParams.config.numMeshNetworks):
radios.append(
UDPRadio(radioConfig)) # connection to communication processes
FCRadio = Radio(FCSer, radioConfig)
# Create message parsers
msgParsers = []
parserConfig = {'parseMsgMax': nodeParams.config.parseMsgMax}
for i in range(nodeParams.config.numMeshNetworks):
if nodeParams.config.msgParsers[i] == "SLIP":
msgParsers.append(SLIPMsgParser(parserConfig))
elif nodeParams.config.msgParsers[i] == "standard":
msgParsers.append(MsgParser(parserConfig))
FCMsgParser = SLIPMsgParser(parserConfig)
# Open logfiles
currentTime = str(time.time())
FCLogFilename = 'fc_' + currentTime + '.log'
self.FCLogFile = open(FCLogFilename, 'w')
nodeCommLogFilename = 'node_' + currentTime + '.log'
self.nodeCommLogFile = open(nodeCommLogFilename, 'w')
# Failsafe LED interval
failsafeLEDTime = 1.0 # seconds
failsafeLEDOnTime = -1.0
failsafeLEDOn = False
# Initialize node and flight computer communication variables
nodeComm = [[]] * nodeParams.config.numMeshNetworks
FCComm = []
# Instantiate specific node software
self.nodeController = []
self.nodeExecutive = []
for case in switch(nodeParams.config.platform
): # Platform specific initializations
if case("SpecificNode"):
pass
else: # generic node
from mesh.generic.nodeComm import NodeComm
from mesh.generic.nodeController import NodeController
from mesh.generic.nodeExecutive import NodeExecutive
print("Initializing generic node")
# Initialize communication variables
for i in range(nodeParams.config.numMeshNetworks):
nodeComm[i] = NodeComm([], radios[i], msgParsers[i],
nodeParams)
FCComm = NodeComm([], FCRadio, FCMsgParser, nodeParams)
# Node controller
self.nodeController = NodeController(nodeParams,
self.nodeCommLogFile)
# Node executive
self.nodeExecutive = NodeExecutive(nodeParams,
self.nodeController,
nodeComm, FCComm,
self.FCLogFile)
class TestNodeParams:
def setup_method(self, method):
# Create NodeConfig instance
self.nodeConfig = NodeConfig(configFilePath)
if method.__name__ != "test_init":
self.nodeParams = NodeParams(
config=self.nodeConfig) # Create NodeParams instance
def test_init(self):
"""Test NodeParams init function."""
# Test that init function loads node configuration from file
print("Testing init with configFile")
nodeParams = NodeParams(configFile=configFilePath)
assert (nodeParams.config.__dict__ == self.nodeConfig.__dict__)
# Test that init function loads node configuration from provided config
nodeParams = NodeParams(config=self.nodeConfig)
assert (nodeParams.config.__dict__ == self.nodeConfig.__dict__)
def test_getCmdCounter(self):
"""Test NodeParams command counter get function."""
# Test getting random command counter
counter = self.nodeParams.get_cmdCounter()
assert (counter >= 1) # value within range
assert (counter <= 65536) # value within range
# Test getting time-based command counter (NOTE: time-based counter commented out)
#self.nodeParams.commStartTime = time.time()
#time.sleep(0.5)
#counter = self.nodeParams.get_cmdCounter()
#assert(counter >= 0.5 * 1000)
#assert(counter <= 0.6 * 1000)
def test_checkNodeLinks(self):
nodeId = self.nodeParams.config.nodeId - 1
# Test for direct link
self.nodeParams.nodeStatus[2].present = True
self.nodeParams.nodeStatus[2].lastMsgRcvdTime = time.time(
) - 0.90 * self.nodeParams.config.commConfig['linkTimeout']
self.nodeParams.checkNodeLinks()
assert (self.nodeParams.linkStatus[nodeId][2] == LinkStatus.GoodLink)
# Test for indirect link
self.nodeParams.nodeStatus[2].present = False
self.nodeParams.nodeStatus[2].updating = True
self.nodeParams.checkNodeLinks()
assert (
self.nodeParams.linkStatus[nodeId][2] == LinkStatus.IndirectLink)
# Test for no link
self.nodeParams.nodeStatus[2].present = False
self.nodeParams.nodeStatus[2].updating = False
self.nodeParams.checkNodeLinks()
assert (self.nodeParams.linkStatus[nodeId][2] == LinkStatus.NoLink)
def test_updateStatus(self):
"""Test updateStatus method of NodeParams."""
# Test without confirmed config
self.nodeParams.updateStatus()
assert (self.nodeParams.nodeStatus[self.nodeParams.config.nodeId -
1].status == 0)
# Test with confirmed config
self.nodeParams.configConfirmed = True
self.nodeParams.updateStatus()
assert (self.nodeParams.nodeStatus[self.nodeParams.config.nodeId -
1].status == 64)
def test_loadConfig(self):
"""Test loadConfig method of NodeParams."""
# Create new config for update
newConfig = NodeConfig(configFilePath)
newConfigHash = newConfig.calculateHash()
with open(configFilePath, "r") as jsonFile:
configData = json.load(jsonFile)
newConfig_pb = NodeConfig.toProtoBuf(configData).SerializeToString()
# Test update method
badHash = hashlib.sha1()
assert (self.nodeParams.loadConfig(newConfig_pb, badHash) == False
) # test rejection with bad hash
assert (self.nodeParams.newConfig == None)
assert (self.nodeParams.loadConfig(newConfig_pb, newConfigHash) == True
) # test acceptance
assert (self.nodeParams.newConfig != None)
def test_updateConfig(self):
"""Test updateConfig method of NodeParams."""
# Load valid new config
newConfig = NodeConfig(configFilePath)
newConfigHash = newConfig.calculateHash()
with open(configFilePath, "r") as jsonFile:
configData = json.load(jsonFile)
newConfig_pb = NodeConfig.toProtoBuf(configData).SerializeToString()
self.nodeParams.loadConfig(newConfig_pb, newConfigHash)
# Test successful loading
self.nodeParams.config.FCBaudrate = newConfig.FCBaudrate / 2.0 # change a parameter to verify loading of new config
assert (self.nodeParams.config.FCBaudrate != newConfig.FCBaudrate)
assert (self.nodeParams.updateConfig() == True)
assert (self.nodeParams.config.FCBaudrate == newConfig.FCBaudrate)
assert (self.nodeParams.newConfig == None)
# Expect no load when config missing
assert (self.nodeParams.updateConfig() == False)
def setup_method(self, method):
self.nodeParams = NodeParams(configFile=configFilePath)
self.radio = UDPRadio({'uartNumBytesToRead': self.nodeParams.config.uartNumBytesToRead, 'rxBufferSize': 2000, 'ipAddr': "127.0.0.1", 'readPort': 5000, 'writePort': 5000})
def setup_method(self, method):
nodeParams = NodeParams(configFile=configFilePath)
self.nodeController = NodeController(nodeParams)
import serial
import os, time, sys
from natsort import natsorted
from multiprocessing import Value
from mesh.generic.nodeParams import NodeParams
from commProcess import CommProcess
from nodeControlProcess import NodeControlProcess
# Execute communication and node control as separate processes
if __name__ == '__main__':
# Node control shared run flag
runFlag = Value('B', 1)
# Load network node configuration
configFile = 'nodeConfig.json'
nodeParams = NodeParams(configFile=configFile)
# Create node communication processes (one process per network)
commProcesses = [None] * nodeParams.config.numMeshNetworks
for i in range(nodeParams.config.numMeshNetworks):
commProcesses[i] = CommProcess(configFile, i, runFlag)
commProcesses[i].daemon = True
# Create node control process
nodeControlProcess = NodeControlProcess(configFile, runFlag)
nodeControlProcess.daemon = True # run node control as a daemon
# Start processes
for process in commProcesses:
process.start()
class TestNodeParams:
def setup_method(self, method):
# Create NodeConfig instance
self.nodeConfig = NodeConfig(configFilePath)
if method.__name__ != "test_init":
self.nodeParams = NodeParams(config=self.nodeConfig) # Create NodeParams instance
def test_init(self):
"""Test NodeParams init function."""
# Test that init function loads node configuration from file
print("Testing init with configFile")
nodeParams = NodeParams(configFile=configFilePath)
assert(nodeParams.config.__dict__ == self.nodeConfig.__dict__)
# Test that init function loads node configuration from provided config
nodeParams = NodeParams(config=self.nodeConfig)
assert(nodeParams.config.__dict__ == self.nodeConfig.__dict__)
def test_getCmdCounter(self):
"""Test NodeParams command counter get function."""
# Test getting random command counter
counter = self.nodeParams.get_cmdCounter()
assert(counter >= 1) # value within range
assert(counter <= 65536) # value within range
# Test getting time-based command counter (NOTE: time-based counter commented out)
#self.nodeParams.commStartTime = time.time()
#time.sleep(0.5)
#counter = self.nodeParams.get_cmdCounter()
#assert(counter >= 0.5 * 1000)
#assert(counter <= 0.6 * 1000)
def test_checkNodeLinks(self):
nodeId = self.nodeParams.config.nodeId - 1
# Test for direct link
self.nodeParams.nodeStatus[2].present = True
self.nodeParams.nodeStatus[2].lastMsgRcvdTime = time.time() - 0.90 * self.nodeParams.config.commConfig['linkTimeout']
self.nodeParams.checkNodeLinks()
assert(self.nodeParams.linkStatus[nodeId][2] == LinkStatus.GoodLink)
# Test for indirect link
self.nodeParams.nodeStatus[2].present = False
self.nodeParams.nodeStatus[2].updating = True
self.nodeParams.checkNodeLinks()
assert(self.nodeParams.linkStatus[nodeId][2] == LinkStatus.IndirectLink)
# Test for no link
self.nodeParams.nodeStatus[2].present = False
self.nodeParams.nodeStatus[2].updating = False
self.nodeParams.checkNodeLinks()
assert(self.nodeParams.linkStatus[nodeId][2] == LinkStatus.NoLink)
def test_updateStatus(self):
"""Test updateStatus method of NodeParams."""
# Test without confirmed config
self.nodeParams.updateStatus()
assert(self.nodeParams.nodeStatus[self.nodeParams.config.nodeId-1].status == 0)
# Test with confirmed config
self.nodeParams.configConfirmed = True
self.nodeParams.updateStatus()
assert(self.nodeParams.nodeStatus[self.nodeParams.config.nodeId-1].status == 64)
def setup_method(self, method):
self.nodeParams = NodeParams(configFile=configFilePath)
self.commProcessor = CommProcessor([], self.nodeParams)
msgParser = SLIPMsgParser(
{'parseMsgMax': self.nodeParams.config.parseMsgMax})
self.comm = TDMAComm([], [], msgParser, self.nodeParams)
class TestTDMABlockTx:
def setup_method(self, method):
if testSerialPort:
serialPort = serial.Serial(port=testSerialPort,
baudrate=57600,
timeout=0)
else:
serialPort = []
self.nodeParams = NodeParams(configFile=configFilePath)
self.nodeParams.commStartTime = time.time()
self.nodeParams.config.commConfig['transmitSlot'] = 1
self.radio = Radio(
serialPort, {
'uartNumBytesToRead':
self.nodeParams.config.uartNumBytesToRead,
'rxBufferSize': 2000
})
commProcessor = CommProcessor([TDMACmdProcessor, TestCmdProcessor],
self.nodeParams)
msgParser = SLIPMsgParser(
{'parseMsgMax': self.nodeParams.config.parseMsgMax})
self.tdmaComm = TDMAComm(commProcessor, self.radio, msgParser,
self.nodeParams)
self.tdmaComm.nodeParams.frameStartTime = time.time()
def test_populateBlockResponseList(self):
"""Test populateBlockResponseList method of TDMAComm."""
# Set node presence flags
presentNodes = [1, 2, 3]
for node in presentNodes:
self.nodeParams.nodeStatus[node - 1].present = True
self.tdmaComm.populateBlockResponseList()
for node in presentNodes:
assert (node in self.tdmaComm.blockTxStatus['blockResponseList'])
def test_checkBlockResponse(self):
"""Test checkBlockResponse method of TDMAComm."""
# Set block response list
self.tdmaComm.blockTxStatus['blockResponseList'] = {
1: None,
2: None,
3: None
}
# False response test
self.tdmaComm.blockTxStatus['blockResponseList'][2] = False
assert (self.tdmaComm.checkBlockResponse() == False)
# Waiting for responses test
self.tdmaComm.blockTxStatus['blockResponseList'][2] = True
assert (self.tdmaComm.checkBlockResponse() == None)
# True responses test
for node in self.tdmaComm.blockTxStatus['blockResponseList']:
self.tdmaComm.blockTxStatus['blockResponseList'][node] = True
assert (self.tdmaComm.checkBlockResponse() == True)
def test_sendDataBlock(self):
"""Test sendDataBlock method of TDMAComm."""
# Manually set frame start time
self.tdmaComm.frameStartTime = time.time()
dataBlock = b'1234567890' * 50
self.tdmaComm.sendDataBlock(dataBlock)
# Check data stored and block tx request sent
assert (self.tdmaComm.dataBlock == dataBlock) # data block stored
header, msgContents = deserialize(
self.tdmaComm.radio.txBuffer[1:-3], TDMACmds['BlockTxRequest']
) # parse only raw message portions of output
assert (msgContents['blockReqID'] ==
self.tdmaComm.blockTxStatus['blockReqID'])
assert (msgContents['startTime'] ==
self.tdmaComm.blockTxStatus['startTime'])
assert (msgContents['length'] == self.tdmaComm.blockTxStatus['length'])
def test_monitorBlockTx(self):
"""Test monitorBlockTx method of TDMAComm."""
# Manually set frame start time
self.tdmaComm.frameStartTime = time.time()
## Test block pending behavior
# Check for block request response checks
self.setupBlockRequest('tx')
for node in self.tdmaComm.blockTxStatus['blockResponseList']:
self.tdmaComm.blockTxStatus['blockResponseList'][node] = True
self.tdmaComm.monitorBlockTx()
assert (self.tdmaComm.blockTxStatus['status'] ==
TDMABlockTxStatus.confirmed)
# Check for request timeout
self.setupBlockRequest('tx')
self.tdmaComm.frameStartTime += 0.5 * self.nodeParams.config.commConfig[
'blockTxRequestTimeout'] * self.nodeParams.config.commConfig[
'frameLength']
self.tdmaComm.monitorBlockTx()
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.pending)
self.tdmaComm.frameStartTime += 0.5 * self.nodeParams.config.commConfig[
'blockTxRequestTimeout'] * self.nodeParams.config.commConfig[
'frameLength'] + 0.1
self.tdmaComm.monitorBlockTx()
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.false)
# Check for cancel when not confirmed
self.setupBlockRequest('rx')
self.tdmaComm.frameStartTime = self.tdmaComm.blockTxStatus[
'requestTime']
self.tdmaComm.frameStartTime += 0.5 * (
self.tdmaComm.blockTxStatus['startTime'] -
self.tdmaComm.blockTxStatus['requestTime'])
self.tdmaComm.monitorBlockTx()
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.pending)
self.tdmaComm.frameStartTime += 0.5 * (
self.tdmaComm.blockTxStatus['startTime'] -
self.tdmaComm.blockTxStatus['requestTime'])
self.tdmaComm.monitorBlockTx()
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.false)
## Test block confirmed behavior
# Check for change to active block tx status
self.setupBlockRequest('rx')
self.tdmaComm.blockTxStatus['status'] = TDMABlockTxStatus.confirmed
self.tdmaComm.frameStartTime = self.tdmaComm.blockTxStatus[
'requestTime']
self.tdmaComm.frameStartTime += 0.5 * (
self.tdmaComm.blockTxStatus['startTime'] -
self.tdmaComm.blockTxStatus['requestTime'])
self.tdmaComm.monitorBlockTx()
assert (self.tdmaComm.blockTxStatus['status'] ==
TDMABlockTxStatus.confirmed)
self.tdmaComm.frameStartTime += 0.5 * (
self.tdmaComm.blockTxStatus['startTime'] -
self.tdmaComm.blockTxStatus['requestTime'])
self.tdmaComm.monitorBlockTx()
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.active)
# Check block tx status message sent
self.tdmaComm.radio.txBuffer = bytearray()
self.setupBlockRequest()
self.tdmaComm.blockTxStatus['status'] = TDMABlockTxStatus.confirmed
self.tdmaComm.frameStartTime = self.tdmaComm.blockTxStatus[
'requestTime']
self.tdmaComm.monitorBlockTx()
print(self.tdmaComm.radio.txBuffer)
header, msgContents = deserialize(self.tdmaComm.radio.txBuffer,
TDMACmds['BlockTxStatus'])
assert (msgContents['blockReqID'] ==
self.tdmaComm.blockTxStatus['blockReqID'])
assert (msgContents['startTime'] ==
self.tdmaComm.blockTxStatus['startTime'])
assert (msgContents['length'] == self.tdmaComm.blockTxStatus['length'])
## Test block active behavior
# Check for block end from time
self.setupBlockTxActive()
self.tdmaComm.monitorBlockTx()
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.active)
self.tdmaComm.frameStartTime += self.tdmaComm.blockTxStatus[
'length'] * self.nodeParams.config.commConfig['frameLength']
self.tdmaComm.monitorBlockTx()
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.false)
# Check for block end from complete flag set
self.setupBlockTxActive()
self.tdmaComm.monitorBlockTx()
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.active)
self.tdmaComm.blockTxStatus['blockTxComplete'] = True
self.tdmaComm.monitorBlockTx()
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.false)
# Check for block end from status set to nominal
self.setupBlockTxActive()
self.tdmaComm.monitorBlockTx()
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.active)
self.nodeParams.tdmaStatus = TDMAStatus.nominal
self.tdmaComm.monitorBlockTx()
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.false)
def test_sendBlock(self):
"""Test sendBlock method of TDMAComm."""
dataBlock = b'1234567890' * 50
# Check for blockTxComplete set if no data block
assert (self.tdmaComm.blockTxStatus['blockTxComplete'] == False)
self.tdmaComm.sendBlock()
assert (self.tdmaComm.blockTxStatus['blockTxComplete'] == True)
## Test that block is sent in appropriately sized chunks
self.tdmaComm.blockTxStatus[
'blockTxComplete'] = False # reset block tx complete flag
self.nodeParams.config.commConfig['maxBlockTransferSize'] = int(
len(dataBlock) / 2) + 1 # half of block + 1
self.tdmaComm.dataBlock = dataBlock
self.tdmaComm.sendBlock()
time.sleep(0.1)
# Check that max block transfer sized chunk sent
assert (self.tdmaComm.dataBlockPos ==
self.nodeParams.config.commConfig['maxBlockTransferSize'])
self.tdmaComm.radio.readBytes(True)
assert (self.tdmaComm.radio.bytesInRxBuffer ==
self.nodeParams.config.commConfig['maxBlockTransferSize'])
assert (self.tdmaComm.blockTxStatus['blockTxComplete'] == False)
# Check that rest of block sent
self.tdmaComm.radio.clearRxBuffer()
self.tdmaComm.sendBlock()
time.sleep(0.1)
assert (self.tdmaComm.dataBlockPos == 0)
self.tdmaComm.radio.readBytes(True)
assert (
self.tdmaComm.radio.bytesInRxBuffer == int(len(dataBlock) / 2) + 1
) # half of block + END byte
assert (self.tdmaComm.blockTxStatus['blockTxComplete'] == True)
#def test_dumpBlockData(self):
# """Test dumpBlockData method of TDMAComm."""
# self.tdmaComm.receivedBlockData = b'1234567890'*10
# self.tdmaComm.dumpBlockData('./')
# assert(len(self.tdmaComm.receivedBlockData) == 0)
def test_nominalTDMABlockTx(self):
"""Test TDMA block transfer sequence."""
# Force init
self.tdmaComm.meshInited = True
dataBlock = b'1234567890' * 50
self.nodeParams.config.commConfig['maxBlockTransferSize'] = int(
len(dataBlock) / 2) + 1
self.tdmaComm.frameStartTime = time.time()
# Set present nodes
self.nodeParams.nodeStatus[0].present = True
self.nodeParams.nodeStatus[1].present = True
# Request sending of data block
self.initiateBlockTransmit()
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.pending)
## Execute TDMA comm and monitor block transfer process
# Check for status change to pending
self.tdmaComm.frameStartTime += self.nodeParams.config.commConfig[
'frameLength']
self.tdmaComm.execute(self.tdmaComm.frameStartTime)
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.pending)
# "Send" positive request response from one node
cmdMsg = Command(
TDMACmds['BlockTxRequestResponse'], {
'blockReqID': self.tdmaComm.blockTxStatus['blockReqID'],
"accept": True
}, [
TDMACmds['BlockTxRequestResponse'], 1,
self.nodeParams.get_cmdCounter()
]).serialize(self.nodeParams.clock.getTime())
self.tdmaComm.commProcessor.processMsg(cmdMsg,
args={
'nodeStatus':
self.nodeParams.nodeStatus,
'comm': self.tdmaComm,
'clock':
self.nodeParams.clock
})
print(self.tdmaComm.blockTxStatus['blockResponseList'])
assert (self.tdmaComm.blockTxStatus['blockResponseList'][1] == True
) # response list updated
self.tdmaComm.frameStartTime += self.nodeParams.config.commConfig[
'frameLength']
self.tdmaComm.execute(self.tdmaComm.frameStartTime)
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.pending)
# Send remaining positive responses and check for update to confirmed status
time.sleep(0.1)
cmdMsg = Command(
TDMACmds['BlockTxRequestResponse'], {
'blockReqID': self.tdmaComm.blockTxStatus['blockReqID'],
"accept": True
}, [
TDMACmds['BlockTxRequestResponse'], 2,
self.nodeParams.get_cmdCounter()
]).serialize(self.nodeParams.clock.getTime())
self.tdmaComm.commProcessor.processMsg(cmdMsg,
args={
'nodeStatus':
self.nodeParams.nodeStatus,
'comm': self.tdmaComm,
'clock':
self.nodeParams.clock
})
self.tdmaComm.frameStartTime += self.nodeParams.config.commConfig[
'frameLength']
self.tdmaComm.execute(self.tdmaComm.frameStartTime)
assert (self.tdmaComm.blockTxStatus['status'] ==
TDMABlockTxStatus.confirmed)
# Advance to block start time
self.tdmaComm.radio.txBuffer = bytearray() # clear tx buffer
self.tdmaComm.frameStartTime = self.tdmaComm.blockTxStatus['startTime']
self.tdmaComm.execute(self.tdmaComm.frameStartTime)
time.sleep(0.1)
self.tdmaComm.radio.readBytes(True)
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.active
) # block started
assert (self.nodeParams.tdmaStatus == TDMAStatus.blockTx
) # tdma status updated
assert (self.tdmaComm.radio.bytesInRxBuffer >=
self.nodeParams.config.commConfig['maxBlockTransferSize'])
assert (self.tdmaComm.blockTxStatus['blockTxComplete'] == False)
# Continue sending and check for block tx complete flag
self.tdmaComm.frameStartTime += self.nodeParams.config.commConfig[
'frameLength']
self.tdmaComm.execute(self.tdmaComm.frameStartTime)
assert (self.tdmaComm.blockTxStatus['blockTxComplete'] == True)
# Check for transition back to nominal TDMA
self.tdmaComm.frameStartTime += self.nodeParams.config.commConfig[
'frameLength']
self.tdmaComm.execute(self.tdmaComm.frameStartTime)
assert (self.nodeParams.tdmaStatus == TDMAStatus.nominal)
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.false)
def test_rejectedTDMABlockTx(self):
"""Test rejecting block transmit request."""
# Force init
self.tdmaComm.meshInited = True
# Start block transmit
self.initiateBlockTransmit()
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.pending)
# "Send" negative response from other node
time.sleep(0.01)
cmdMsg = Command(
TDMACmds['BlockTxRequestResponse'], {
'blockReqID': self.tdmaComm.blockTxStatus['blockReqID'],
"accept": False
}, [
TDMACmds['BlockTxRequestResponse'], 2,
self.nodeParams.get_cmdCounter()
]).serialize(self.nodeParams.clock.getTime())
self.tdmaComm.commProcessor.processMsg(cmdMsg,
args={
'nodeStatus':
self.nodeParams.nodeStatus,
'comm': self.tdmaComm,
'clock':
self.nodeParams.clock
})
self.tdmaComm.frameStartTime += self.nodeParams.config.commConfig[
'frameLength']
self.tdmaComm.execute(self.tdmaComm.frameStartTime)
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.false
) # request cancelled
def test_blockTxEndTime(self):
"""Test block transmit ended due to block length reached."""
# Force init
self.tdmaComm.meshInited = True
# Start block transmit
self.initiateBlockTransmit()
self.tdmaComm.blockTxStatus['status'] = TDMABlockTxStatus.confirmed
self.tdmaComm.frameStartTime = self.tdmaComm.blockTxStatus['startTime']
self.tdmaComm.execute(self.tdmaComm.frameStartTime)
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.active)
assert (self.nodeParams.tdmaStatus == TDMAStatus.blockTx)
# Advance to block end and check that block terminated
self.tdmaComm.frameStartTime += self.nodeParams.config.commConfig[
'frameLength'] * self.tdmaComm.blockTxStatus['length']
self.tdmaComm.execute(self.nodeParams.frameStartTime)
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.false)
assert (self.nodeParams.tdmaStatus == TDMAStatus.nominal)
def test_processSendBlockDataCmd(self):
"""Test processing of SendBlockData command from GCS."""
self.tdmaComm.frameStartTime = 0.0 # set a frame start time since main execution is bypassed
# Create TestCmds['SendBlockData'] command
cmdMsg = Command(TestCmds['SendDataBlock'], {
'destId': self.nodeParams.config.nodeId
}, [TestCmds['SendDataBlock'], 0,
self.nodeParams.get_cmdCounter()]).serialize(
self.nodeParams.clock.getTime())
# Process command and check result
self.tdmaComm.commProcessor.processMsg(cmdMsg,
args={
'nodeStatus':
self.nodeParams.nodeStatus,
'comm': self.tdmaComm
})
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.pending)
assert (self.tdmaComm.dataBlock == b'1234567890' * 100)
def test_nodePresenceUpdate(self):
"""Test that node presence does not timeout during block transmits."""
self.nodeParams.frameStartTime = time.time()
self.tdmaComm.blockTxStatus['status'] = TDMABlockTxStatus.active
self.tdmaComm.blockTxStatus[
'txNode'] = self.nodeParams.config.nodeId + 1
self.tdmaComm.blockTxStatus['length'] = 10
self.tdmaComm.blockTxStatus[
'startTime'] = self.nodeParams.frameStartTime
self.nodeParams.tdmaStatus = TDMAStatus.blockTx
# Set present nodes
self.nodeParams.nodeStatus[1].present = True
self.nodeParams.nodeStatus[2].present = True
# Propagate time and check that node update time is updated
self.tdmaComm.execute(0.0)
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.active)
assert ((self.nodeParams.nodeStatus[1].lastStateUpdateTime -
time.time()) <= 0.001)
time.sleep(5.0)
self.tdmaComm.execute(0.0)
assert (
self.tdmaComm.blockTxStatus['status'] == TDMABlockTxStatus.active)
assert ((self.nodeParams.nodeStatus[1].lastStateUpdateTime -
time.time()) <= 0.001)
def initiateBlockTransmit(self):
"""Initiate block transmit process."""
dataBlock = b'1234567890' * 50
self.nodeParams.config.commConfig['maxBlockTransferSize'] = int(
len(dataBlock) / 2) + 1
self.tdmaComm.frameStartTime = time.time()
# Set present nodes
self.nodeParams.nodeStatus[0].present = True
self.nodeParams.nodeStatus[1].present = True
# Request sending of data block
self.tdmaComm.sendDataBlock(dataBlock)
def setupBlockTxActive(self):
self.setupBlockRequest('tx')
self.tdmaComm.blockTxStatus['status'] = TDMABlockTxStatus.active
self.nodeParams.tdmaStatus = TDMAStatus.blockTx
self.tdmaComm.frameStartTime = self.tdmaComm.blockTxStatus['startTime']
def setupBlockRequest(self, role='tx'):
self.tdmaComm.resetBlockTxStatus()
currentTime = time.time()
self.tdmaComm.blockTxStatus['blockReqID'] = 5
self.tdmaComm.blockTxStatus['startTime'] = int(
currentTime +
self.nodeParams.config.commConfig['minBlockTxDelay'] *
self.nodeParams.config.commConfig['frameLength'])
self.tdmaComm.blockTxStatus['length'] = 5
# Set block response list
self.tdmaComm.blockTxStatus['blockResponseList'] = {
1: None,
2: None,
3: None
}
if role == 'tx': # This node transmitting
self.tdmaComm.blockTxStatus[
'txNode'] = self.nodeParams.config.nodeId
else:
self.tdmaComm.blockTxStatus[
'txNode'] = self.nodeParams.config.nodeId + 1
self.tdmaComm.blockTxStatus['status'] = TDMABlockTxStatus.pending
self.tdmaComm.blockTxStatus['requestTime'] = currentTime
class TestTDMACmdProcessor:
def setup_method(self, method):
self.nodeStatus = [NodeState(i + 1) for i in range(5)]
self.nodeParams = NodeParams(configFile=configFilePath)
self.commProcessor = CommProcessor([TDMACmdProcessor], self.nodeParams)
msgParser = SLIPMsgParser(
{'parseMsgMax': self.nodeParams.config.parseMsgMax})
radio = Radio(
[], {
'uartNumBytesToRead':
self.nodeParams.config.uartNumBytesToRead,
'rxBufferSize': 2000
})
self.comm = TDMAComm(self.commProcessor, radio, msgParser,
self.nodeParams)
def test_validateBlockTxRequest(self):
"""Test validateBlockTxRequest method of TDMACmdProcessor."""
# Test request rejected if start time passed
contents = {
'startTime': time.time() - 1.0,
'length': self.nodeParams.config.commConfig['maxTxBlockSize']
}
assert (validateBlockTxRequest(contents, [], self.nodeParams) == False)
# Test request rejected if block too long
contents = {
'startTime': time.time() + 1.0,
'length': self.nodeParams.config.commConfig['maxTxBlockSize'] + 1
}
assert (validateBlockTxRequest(contents, [], self.nodeParams) == False)
# Test for request acceptance
contents = {
'startTime': time.time() + 1.0,
'length': self.nodeParams.config.commConfig['maxTxBlockSize']
}
assert (validateBlockTxRequest(contents, [], self.nodeParams) == True)
def test_processMsg(self):
"""Test processMsg method of TDMACmdProcessor."""
# Test processing of all TDMACmds
for cmdId in cmdsToTest:
cmdMsg = packHeader(testCmds[cmdId].header) + testCmds[cmdId].body
self.commProcessor.processMsg(cmdMsg,
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
})
if cmdId == TDMACmds['TimeOffset']:
sourceId = testCmds[cmdId].header['header']['sourceId']
assert (
self.nodeStatus[sourceId -
1].timeOffset == testCmds[cmdId].body[0] /
100.0)
elif cmdId == TDMACmds['TimeOffsetSummary']:
for i in range(len(testCmds[cmdId].cmdData['nodeStatus'])):
assert (self.nodeStatus[i].timeOffset == testCmds[cmdId].
cmdData['nodeStatus'][i].timeOffset)
elif cmdId == TDMACmds['MeshStatus']:
assert (self.nodeParams.commStartTime ==
testCmds[cmdId].cmdData['commStartTimeSec'])
# Resend and test that commStartTime is not updated once it has previously been set
cmdId = TDMACmds['MeshStatus']
self.nodeParams.commStartTime = testCmds[cmdId].cmdData[
'commStartTimeSec'] - 1
cmdMsg = packHeader(testCmds[cmdId].header) + testCmds[cmdId].body
self.commProcessor.processMsg(cmdMsg,
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
})
assert (self.nodeParams.commStartTime !=
testCmds[cmdId].cmdData['commStartTimeSec'])
def test_blockTxCmdsProcessing(self):
"""Test processing of block transmit related commands."""
self.nodeParams.commStartTime = self.nodeParams.clock.getTime() - 1.0
blockReqID = random.randint(1, 255) # just a random "unique" number
startTime = int(self.nodeParams.clock.getTime() + 10.0)
length = self.nodeParams.config.commConfig['maxTxBlockSize']
txNode = 1
## TDMACmds['BlockTxRequest']
cmdMsg = Command(TDMACmds['BlockTxRequest'], {
'blockReqID': blockReqID,
'startTime': startTime,
'length': length
}, [
TDMACmds['BlockTxRequest'], txNode,
self.nodeParams.get_cmdCounter()
]).serialize(self.nodeParams.clock.getTime())
# Process and check results
self.commProcessor.processMsg(cmdMsg,
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
})
assert (len(self.comm.radio.txBuffer) == calcsize(
CmdDict[TDMACmds['BlockTxRequestResponse']].packFormat) +
calcsize(headers['NodeHeader']['format'])) # response sent
assert (self.comm.blockTxStatus['blockReqID'] == blockReqID)
assert (self.comm.blockTxStatus['status'] == TDMABlockTxStatus.pending)
assert (self.comm.blockTxStatus['txNode'] == txNode)
assert (self.comm.blockTxStatus['startTime'] == startTime)
assert (self.comm.blockTxStatus['length'] == length)
## TDMACmds['BlockTxConfirmed']
time.sleep(0.01)
cmdMsg = Command(TDMACmds['BlockTxConfirmed'], {
'blockReqID': blockReqID
}, [
TDMACmds['BlockTxConfirmed'], txNode,
self.nodeParams.get_cmdCounter()
]).serialize(self.nodeParams.clock.getTime())
self.commProcessor.processMsg(cmdMsg,
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
})
assert (
self.comm.blockTxStatus['status'] == TDMABlockTxStatus.confirmed
) # status updated to confirmed
## TDMACmds['BlockTxStatus']
self.comm.resetBlockTxStatus()
time.sleep(0.01)
cmdMsg = Command(TDMACmds['BlockTxStatus'], {
'blockReqID': blockReqID,
'startTime': startTime,
'length': length
}, [
TDMACmds['BlockTxStatus'], txNode,
self.nodeParams.get_cmdCounter()
]).serialize(self.nodeParams.clock.getTime())
# Check status updated
self.commProcessor.processMsg(cmdMsg,
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
})
assert (len(self.comm.radio.txBuffer) == calcsize(
CmdDict[TDMACmds['BlockTxRequestResponse']].packFormat) +
calcsize(headers['NodeHeader']['format'])) # response sent
assert (self.comm.blockTxStatus['blockReqID'] == blockReqID)
assert (
self.comm.blockTxStatus['status'] == TDMABlockTxStatus.confirmed)
assert (self.comm.blockTxStatus['txNode'] == txNode)
assert (self.comm.blockTxStatus['startTime'] == startTime)
assert (self.comm.blockTxStatus['length'] == length)
# Check status updated to confirmed if only pending
time.sleep(0.01)
cmdMsg = Command(TDMACmds['BlockTxStatus'], {
'blockReqID': blockReqID,
'startTime': startTime,
'length': length
}, [
TDMACmds['BlockTxStatus'], txNode,
self.nodeParams.get_cmdCounter()
]).serialize(self.nodeParams.clock.getTime()) # update command counter
self.comm.blockTxStatus['status'] = TDMABlockTxStatus.pending
self.commProcessor.processMsg(cmdMsg,
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
})
assert (
self.comm.blockTxStatus['status'] == TDMABlockTxStatus.confirmed)
## TDMACmds['BlockTxRequestResponse']
time.sleep(0.01)
self.comm.resetBlockTxStatus()
self.comm.blockTxStatus[
'txNode'] = self.nodeParams.config.nodeId # this node requested block transfer
self.comm.blockTxStatus['status'] = TDMABlockTxStatus.pending
cmdMsg = Command(TDMACmds['BlockTxRequestResponse'], {
'blockReqID': blockReqID,
"accept": True
}, [
TDMACmds['BlockTxRequestResponse'], 1,
self.nodeParams.get_cmdCounter()
]).serialize(self.nodeParams.clock.getTime())
print(self.nodeParams.config.nodeId)
self.nodeParams.nodeStatus[
0].present = True # mark another node as present
self.comm.populateBlockResponseList() # create block response list
# Test acceptance marked
self.commProcessor.processMsg(cmdMsg,
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
})
assert (self.comm.blockTxStatus['blockResponseList'][1] == True)
# Test rejection marked
time.sleep(0.01)
cmdMsg = Command(TDMACmds['BlockTxRequestResponse'], {
'blockReqID': blockReqID,
"accept": False
}, [
TDMACmds['BlockTxRequestResponse'], 1,
self.nodeParams.get_cmdCounter()
]).serialize(self.nodeParams.clock.getTime())
self.commProcessor.processMsg(cmdMsg,
args={
'nodeStatus': self.nodeStatus,
'comm': self.comm,
'clock': self.nodeParams.clock
})
assert (self.comm.blockTxStatus['blockResponseList'][1] == False)
