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update test

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This commit is contained in:
aleks
2025-03-05 11:19:00 +01:00
parent d4af0e53e5
commit 9246f742b2
5 changed files with 104 additions and 7 deletions
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1
test_apps/test_common/mb_utest_lib/CMakeLists.txt
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@@ -11,6 +11,7 @@ target_include_directories(mb_ut_lib PUBLIC
"${dir}/modbus/mb_controller/common/include"
"${dir}/modbus/mb_controller/serial"
"${dir}/modbus/mb_controller/tcp"
"${dir}/modbus/mb_objects/common"
"${dir}/modbus/mb_objects/include"
"${dir}/modbus/mb_ports/common"
"${dir}/modbus/mb_ports/serial"

45
tools/robot/ModbusSupport.py
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@@ -36,8 +36,8 @@ class ModbusMBAP(Packet):
name = "Modbus TCP"
fields_desc = [ ShortField("transId", 0),
ShortField("protoId", 0),
ShortField("len", 6),
XByteField("UnitId", 247),
ShortField("len", 0),
XByteField("unitId", 0),
]
# Can be used to replace all Modbus read
@@ -252,10 +252,27 @@ class ModbusPDUXX_Custom_Request(Packet):
FieldListField("customBytes", [0x00], XByteField("", 0x00))
]
class ModbusPDUXX_Custom_Exception(Packet):
name = "Custom Command Exception"
fields_desc = [
XByteField("funcCode", 0x00),
ByteEnumField("exceptCode", 1, modbus_exceptions)
]
# Custom command respond
class ModbusPDUXX_Custom_Answer(Packet):
name = "Custom Command Answer"
fields_desc = [
ConditionalField(XByteField("funcCode", 0x00), lambda pkt: (type(pkt.underlayer) is ModbusADU_Response)),
ConditionalField(FieldListField("customBytes", [0x00], XByteField("", 0x00), count_from = lambda pkt: pkt.underlayer.len if pkt.underlayer is not None else 0), lambda pkt: type(pkt.underlayer) is ModbusADU_Response)
]
# 0x11 - Report Slave Id
class ModbusPDU11_Report_Slave_Id(Packet):
name = "Report Slave Id"
fields_desc = [ XByteField("funcCode", 0x11) ]
fields_desc = [
XByteField("funcCode", 0x11)
]
class ModbusPDU11_Report_Slave_Id_Answer(Packet):
name = "Report Slave Id Answer"
@@ -279,7 +296,8 @@ class ModbusADU_Request(ModbusMBAP):
XShortField("transId", 0x0000), # needs to be unique
XShortField("protoId", 0x0000), # needs to be zero (Modbus)
XShortField("len", None), # is calculated with payload
XByteField("unitId", 0x00)] # 0xFF or 0x00 should be used for Modbus over TCP/IP
XByteField("unitId", 0x00) # 0xFF or 0x00 should be used for Modbus over TCP/IP
]
def mb_get_last_exception(self):
return _mb_exception
@@ -372,7 +390,8 @@ class ModbusADU_Request(ModbusMBAP):
class ModbusADU_Response(ModbusMBAP):
name = "ModbusADU Response"
_mb_exception: modbus_exceptions = 0
_current_main_packet: Packet = None
_modbus_pdu: Packet = None
fields_desc = [
XShortField("transId", 0x0000), # needs to be unique
XShortField("protoId", 0x0000), # needs to be zero (Modbus)
@@ -381,6 +400,15 @@ class ModbusADU_Response(ModbusMBAP):
def mb_get_last_exception(self):
return _mb_exception
# def extract_padding(self, s):
# print(f'Extract pedding: {self, s, self.len, self.underlayer}')
# return self.guess_payload_class( s) #, s #self.extract_pedding(self, s)
def pre_dissect(self, s):
print(f'Pre desect: {self, s, self.len, self.underlayer}')
_current_main_packet = self
return s
# Dissects packets
def guess_payload_class(self, payload):
@@ -443,11 +471,14 @@ class ModbusADU_Response(ModbusMBAP):
return ModbusPDU10_Write_Multiple_Registers_Exception
elif funcCode == 0x11:
print(f'Packet answer: {payload}, func: {funcCode}')
return ModbusPDU11_Report_Slave_Id_Answer
elif funcCode == 0x91:
self._mb_exception = int(payload[1])
return ModbusPDU11_Report_Slave_Id_Exception
else:
return Packet.guess_payload_class(self, payload)
if (funcCode & 0x80):
self._mb_exception = int(payload[1])
return ModbusPDUXX_Custom_Exception
return ModbusPDUXX_Custom_Answer
#return Packet.guess_payload_class(self, payload)

11
tools/robot/ModbusTestLib.py
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@@ -42,6 +42,8 @@ MB_LOGGING_PATH = '.'
# The constructed packets for self testing
TEST_PACKET_REPORT_CUSTOM_0X41 = 'ModbusADU_Request(transId=MB_DEF_TRANS_ID, unitId=0x01, protoId=0)/\
ModbusPDUXX_Custom_Request(customBytes=[0x41])'
TEST_PACKET_REPORT_SLAVE_ID_CUSTOM = 'ModbusADU_Request(transId=MB_DEF_TRANS_ID, unitId=0x01, protoId=0)/\
ModbusPDUXX_Custom_Request(customBytes=[0x11])'
TEST_PACKET_REPORT_SLAVE_ID = 'ModbusADU_Request(transId=MB_DEF_TRANS_ID, unitId=0x01, protoId=0)/\
@@ -431,6 +433,15 @@ class ModbusTestLib:
def self_test(self) -> None:
# type: () -> None
self.connect(ip_addr=MB_DEF_SERVER_IP, port=MB_DEF_PORT)
packet = self.create_request(TEST_PACKET_REPORT_CUSTOM_0X41)
print(f"Test: 0x41 <Custom command> packet: {packet}")
response = self.send_packet_and_get_response(packet, timeout=1, verbose=0)
assert response and len(response) > 1, "No response from slave"
print(f"Test: received: {bytes(response)}")
pdu = self.translate_response(response)
if pdu is not None:
print(f"Received: {pdu}")
#print(f"PDU Exception: {self.check_response(pdu, packet.customBytes[0])}")
packet = self.create_request(TEST_PACKET_REPORT_SLAVE_ID_CUSTOM)
print(f"Test: 0x11 <Report Slave ID> packet: {packet}")
response = self.send_packet_and_get_response(packet, timeout=1, verbose=0)

47
tools/robot/ModbusTestSuite.resource
View File

@@ -18,6 +18,11 @@ Library Collections
Library ModbusTestLib.py WITH NAME ModbusTestLib
*** Keywords ***
Create Custom Command Request
[Arguments] ${uid} ${customData}
${packet} = Create Request ModbusADU_Request(unitId=${uid}, protoId=0)/ModbusPDUXX_Custom_Request(customBytes=${customData})
RETURN ${packet}
Create Report Slave Id Request
[Arguments] ${uid} ${customData}
#${packet} = Create Request ModbusADU_Request(unitId=${uid}, protoId=0)/ModbusPDU11_Report_Slave_Id(funcCode=${FUNC_REPORT_SLAVE_ID})
@@ -64,6 +69,48 @@ Create Discrete Read Request
Log Packet: ${packet}
RETURN ${packet}
Lists Should Be Equal
[Arguments] ${get_list} ${exp_list}
Should Not Be Empty ${get_list}
Should Not Be Empty ${exp_list}
${get_length} = Get length ${get_list}
${exp_length} = Get length ${exp_list}
Should Be Equal As Integers ${get_length} ${exp_length}
FOR ${i} IN RANGE ${exp_length}
${get_item} = Get From List ${get_list} ${i}
${exp_item} = Get From List ${exp_list} ${i}
Should Be Equal As Integers ${get_item} ${exp_item}
END
Custom Command
[Arguments] ${uid} ${customData} ${exception_expected} ${expected_list}
${classId} = Get Class Id
Log Library ClassId: ${classId}
Log Get Slave Identificator UID:${uid}, Custom bytes: ${customData}
${req} = Create Custom Command Request ${uid} ${customData}
#Create Connection ${server} ${port}
${response_frame} = Send Packet And Get Response ${req}
Should Not Be Empty ${response_frame}
${packet} = Translate Response ${response_frame}
Should Be Equal As Integers ${req.transId} ${packet.transId}
${exception} ${exp_message} = Check Response ${packet} ${req.customBytes[0]}
Should Be Equal As Integers ${exception} ${exception_expected}
Log exception: (${exception}: ${exp_message}), expected: ${exception_expected}
IF ${exception} == ${0}
Log SlaveUID:${uid}, Custom_data received:${packet.customBytes}
IF ${expected_list} != ${None}
Log ${expected_list}
Log ${packet.customBytes}
${get_list} = Convert To List ${packet.customBytes}
${exp_list} = Evaluate ${expected_list}
Lists Should Be Equal ${get_list} ${exp_list}
ELSE
Log "Skip comparison with expected list"
END
ELSE
Log "Exception is evaluated correctly (${exception}: ${exp_message}) == ${exception_expected}"
END
Report Slave Id
[Arguments] ${uid} ${customData} ${exception_expected}
${classId} = Get Class Id

7
tools/robot/ModbusTestSuite.robot
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@@ -11,6 +11,13 @@ Suite Teardown Disconnect
${suiteConnection} None
*** Test Cases ***
Test Cusom Command Request
[Documentation] Test reading slave UID, running status, identificator structure (use custom frame template)
[Template] Custom Command
0x01 [0x41] 0 ${None} # Try o send shortest request for custom command, do not check the buffer
0x01 [0x41, 0x11, 0x22, 0x33, 0x44] 0 ${None} # Send custom data, do not compare the response buffer
0x01 [0x41, 0x11, 0x22, 0x33] 0 [17, 34, 51, 0x3A, 83, 108, 97, 118, 101] # Send the custom command and compare expected response (can use hex or dec values)
Test Report Slave Id
[Documentation] Test reading slave UID, running status, identificator structure (use custom frame template)
[Template] Report Slave Id