Files
lmxopcua/scripts/e2e/test-twincat.ps1
Joseph Doherty a9b585ac5b Task #253 follow-up — bidirectional + subscribe-sees-change e2e stages
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>
2026-04-21 10:08:52 -04:00

100 lines
3.4 KiB
PowerShell

#Requires -Version 7.0
<#
.SYNOPSIS
End-to-end CLI test for the TwinCAT (Beckhoff ADS) driver.
.DESCRIPTION
Requires a reachable AMS router (local TwinCAT XAR, Beckhoff.TwinCAT.Ads.
TcpRouter NuGet, or an authorised remote AMS route) + a live TwinCAT
runtime on -AmsNetId. Without one the driver surfaces a transport error
on InitializeAsync + the script's probe fails.
Set TWINCAT_TRUST_WIRE=1 to promise the endpoint is live. Without it the
script skips (task #221 tracks the 7-day-trial CI fixture — until that
lands, TwinCAT testing is a manual operator task).
.PARAMETER AmsNetId
AMS Net ID of the target (e.g. 127.0.0.1.1.1 for local XAR,
192.168.1.40.1.1 for a remote PLC).
.PARAMETER AmsPort
AMS port. Default 851 (TC3 PLC runtime). TC2 uses 801.
.PARAMETER SymbolPath
TwinCAT symbol to exercise. Default 'MAIN.iCounter' — substitute with
whatever your project actually declares.
.PARAMETER OpcUaUrl
OtOpcUa server endpoint.
.PARAMETER BridgeNodeId
NodeId at which the server publishes the Symbol.
#>
param(
[string]$AmsNetId = "127.0.0.1.1.1",
[int]$AmsPort = 851,
[string]$SymbolPath = "MAIN.iCounter",
[string]$OpcUaUrl = "opc.tcp://localhost:4840",
[Parameter(Mandatory)] [string]$BridgeNodeId
)
$ErrorActionPreference = "Stop"
. "$PSScriptRoot/_common.ps1"
if (-not ($env:TWINCAT_TRUST_WIRE -eq "1" -or $env:TWINCAT_TRUST_WIRE -eq "true")) {
Write-Skip "TWINCAT_TRUST_WIRE not set — requires reachable AMS router + live TC runtime (task #221 tracks the CI fixture). Set =1 once the router is up."
exit 0
}
$twinCatCli = Get-CliInvocation `
-ProjectFolder "src/ZB.MOM.WW.OtOpcUa.Driver.TwinCAT.Cli" `
-ExeName "otopcua-twincat-cli"
$opcUaCli = Get-CliInvocation `
-ProjectFolder "src/ZB.MOM.WW.OtOpcUa.Client.CLI" `
-ExeName "otopcua-cli"
$commonTc = @("-n", $AmsNetId, "-p", $AmsPort)
$results = @()
$results += Test-Probe `
-Cli $twinCatCli `
-ProbeArgs (@("probe") + $commonTc + @("-s", $SymbolPath, "--type", "DInt"))
$writeValue = Get-Random -Minimum 1 -Maximum 9999
$results += Test-DriverLoopback `
-Cli $twinCatCli `
-WriteArgs (@("write") + $commonTc + @("-s", $SymbolPath, "-t", "DInt", "-v", $writeValue)) `
-ReadArgs (@("read") + $commonTc + @("-s", $SymbolPath, "-t", "DInt")) `
-ExpectedValue "$writeValue"
$bridgeValue = Get-Random -Minimum 10000 -Maximum 19999
$results += Test-ServerBridge `
-DriverCli $twinCatCli `
-DriverWriteArgs (@("write") + $commonTc + @("-s", $SymbolPath, "-t", "DInt", "-v", $bridgeValue)) `
-OpcUaCli $opcUaCli `
-OpcUaUrl $OpcUaUrl `
-OpcUaNodeId $BridgeNodeId `
-ExpectedValue "$bridgeValue"
$reverseValue = Get-Random -Minimum 20000 -Maximum 29999
$results += Test-OpcUaWriteBridge `
-OpcUaCli $opcUaCli `
-OpcUaUrl $OpcUaUrl `
-OpcUaNodeId $BridgeNodeId `
-DriverCli $twinCatCli `
-DriverReadArgs (@("read") + $commonTc + @("-s", $SymbolPath, "-t", "DInt")) `
-ExpectedValue "$reverseValue"
$subValue = Get-Random -Minimum 30000 -Maximum 39999
$results += Test-SubscribeSeesChange `
-OpcUaCli $opcUaCli `
-OpcUaUrl $OpcUaUrl `
-OpcUaNodeId $BridgeNodeId `
-DriverCli $twinCatCli `
-DriverWriteArgs (@("write") + $commonTc + @("-s", $SymbolPath, "-t", "DInt", "-v", $subValue)) `
-ExpectedValue "$subValue"
Write-Summary -Title "TwinCAT e2e" -Results $results
if ($results | Where-Object { -not $_.Passed }) { exit 1 }