a9b585ac5b
The original three-stage design (probe / driver-loopback / forward- bridge) only proved driver-write → server-read. It missed: - OPC UA write → server → driver → PLC (the reverse direction) - server-side data-change notifications actually firing (a stale subscription can still let a read-after-the-fact return the new value and look fine) Extend _common.ps1 with two helpers: - Test-OpcUaWriteBridge: otopcua-cli write the NodeId -> wait 3s -> driver CLI read the PLC side, assert equality. - Test-SubscribeSeesChange: Start-Process otopcua-cli subscribe in the background with --duration N, settle 2s, driver-side write, wait for the subscription window to close, assert captured stdout contains the new value. Wire both into test-modbus / test-abcip / test-ablegacy / test-s7 / test-focas / test-twincat after the existing forward-bridge stage. Update README to describe the five-stage design + note that the published NodeId must be writable for stages 4 + 5. Also prepend UTF-8 BOM to every script in scripts/e2e so Windows PowerShell 5.1 parsers agree on em-dash byte sequences the way PowerShell 7 already does. The scripts still #Requires -Version 7.0 — the BOM is purely defensive for IDE / CI step parsers. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
95 lines
3.4 KiB
PowerShell
95 lines
3.4 KiB
PowerShell
#Requires -Version 7.0
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<#
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.SYNOPSIS
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End-to-end CLI test for the Modbus-TCP driver bridged through the OtOpcUa server.
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.DESCRIPTION
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Five assertions:
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1. `otopcua-modbus-cli probe` hits the simulator
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2. Driver-loopback write + read-back via modbus-cli
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3. Forward bridge: modbus-cli writes HR[100], OPC UA client reads the bridged NodeId
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4. Reverse bridge: OPC UA client writes the NodeId, modbus-cli reads HR[100]
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5. Subscribe-sees-change: OPC UA subscription observes a modbus-cli write
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Requires a running Modbus simulator on localhost:5502 (the pymodbus fixture
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default per docs/drivers/Modbus-Test-Fixture.md) and a running OtOpcUa server
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whose config DB has a Modbus DriverInstance bound to that simulator + a Tag
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at HR[100] Int16 published under the NodeId passed via -BridgeNodeId.
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.PARAMETER ModbusHost
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Host:port of the Modbus simulator. Default 127.0.0.1:5502.
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.PARAMETER OpcUaUrl
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Endpoint URL of the OtOpcUa server. Default opc.tcp://localhost:4840.
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.PARAMETER BridgeNodeId
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OPC UA NodeId the OtOpcUa server publishes the HR[100] tag at. Set per your
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server config — e.g. 'ns=2;s=/warsaw/modbus-sim/HR_100'. Required.
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.EXAMPLE
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.\test-modbus.ps1 -BridgeNodeId "ns=2;s=/warsaw/modbus-sim/HR_100"
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#>
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param(
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[string]$ModbusHost = "127.0.0.1:5502",
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[string]$OpcUaUrl = "opc.tcp://localhost:4840",
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[Parameter(Mandatory)] [string]$BridgeNodeId
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)
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$ErrorActionPreference = "Stop"
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. "$PSScriptRoot/_common.ps1"
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$hostPart, $portPart = $ModbusHost.Split(":")
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$port = [int]$portPart
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$modbusCli = Get-CliInvocation `
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-ProjectFolder "src/ZB.MOM.WW.OtOpcUa.Driver.Modbus.Cli" `
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-ExeName "otopcua-modbus-cli"
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$opcUaCli = Get-CliInvocation `
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-ProjectFolder "src/ZB.MOM.WW.OtOpcUa.Client.CLI" `
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-ExeName "otopcua-cli"
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$commonModbus = @("-h", $hostPart, "-p", $port)
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$results = @()
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$results += Test-Probe `
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-Cli $modbusCli `
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-ProbeArgs (@("probe") + $commonModbus)
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$writeValue = Get-Random -Minimum 1 -Maximum 9999
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$results += Test-DriverLoopback `
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-Cli $modbusCli `
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-WriteArgs (@("write") + $commonModbus + @("-r", "HoldingRegisters", "-a", "100", "-t", "UInt16", "-v", $writeValue)) `
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-ReadArgs (@("read") + $commonModbus + @("-r", "HoldingRegisters", "-a", "100", "-t", "UInt16")) `
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-ExpectedValue "$writeValue"
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$bridgeValue = Get-Random -Minimum 10000 -Maximum 19999
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$results += Test-ServerBridge `
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-DriverCli $modbusCli `
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-DriverWriteArgs (@("write") + $commonModbus + @("-r", "HoldingRegisters", "-a", "100", "-t", "UInt16", "-v", $bridgeValue)) `
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-OpcUaCli $opcUaCli `
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-OpcUaUrl $OpcUaUrl `
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-OpcUaNodeId $BridgeNodeId `
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-ExpectedValue "$bridgeValue"
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$reverseValue = Get-Random -Minimum 20000 -Maximum 29999
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$results += Test-OpcUaWriteBridge `
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-OpcUaCli $opcUaCli `
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-OpcUaUrl $OpcUaUrl `
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-OpcUaNodeId $BridgeNodeId `
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-DriverCli $modbusCli `
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-DriverReadArgs (@("read") + $commonModbus + @("-r", "HoldingRegisters", "-a", "100", "-t", "UInt16")) `
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-ExpectedValue "$reverseValue"
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$subValue = Get-Random -Minimum 30000 -Maximum 39999
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$results += Test-SubscribeSeesChange `
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-OpcUaCli $opcUaCli `
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-OpcUaUrl $OpcUaUrl `
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-OpcUaNodeId $BridgeNodeId `
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-DriverCli $modbusCli `
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-DriverWriteArgs (@("write") + $commonModbus + @("-r", "HoldingRegisters", "-a", "100", "-t", "UInt16", "-v", $subValue)) `
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-ExpectedValue "$subValue"
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Write-Summary -Title "Modbus e2e" -Results $results
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if ($results | Where-Object { -not $_.Passed }) { exit 1 }
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