LoginVSI PowerShell – Invoke-VSITest


LoginVSI automates performance testing and I need to automate LoginVSI.

By calling this one function, I can invoke a single LoginVSI test.

At a high-level, the test does the following

Prepare test

These items simply get the environment ready for a LoginVSI test. It includes doing the following:

  • Delete any old test files on the LoginVSI server
  • Create log file if one does not exist
  • Disable RDP connection warning message when connecting to my launcher machine
  • Start LoginVSI Session Monitor if not already running
  • Connect to LoginVSI Launcher

Start LoginVSI test

One thing I added was to monitor the LoginVSI debug file directory for the current test.  If I had a test set to run for 60 minutes, the test wouldn’t stop until 60 minutes elapsed.  However, if the test failed, I want the script to stop the current test so I don’t waste a lot of time.

To get this to work, I need to monitor the LoginVSI debug folder for the current test.  If a JPG file appears, that is an error screen capture.

I typically have a series of tests running over the course of many days and need a fast way to see if those tests succeeded or failed. To do this, I append the success or failure result to a simple log file.

At a high-level, the LoginVSI test does the following

  • Start LoginVSI test
  • Every minute, look if LoginVSI test failed. If so, stop current test
  • When test completes, write “Test Success” or “Test Failure” in the log file

function Invoke-VSITest {
    param(
    [string] $vsishare, # \\servername\sharename
    [string] $DomainName, 
    [string] $VSIProfileName, # foldername in the LoginVSI profile $vsishare\_VSI_Profiles
    [string] $launchers, #server name for LoginVSI launcher machine
    [string] $TestName, # must be unique
    [int] $Duration, # Number of minutes to run test
    [string] $MasterImage, # name of the master image used for the test
    [string] $VSILogFile # Path and filename for a text file
    )

    # Clean up old test files
    Write-host (date -Format hh:mm:ss)   -   Deleting old test files if any -ForegroundColor Yellow -Verbose
    Remove-Item ($vsishare + "\*.IsActiveTest") -recurse
    Remove-Item ($vsishare +"\*.PrepTest") -recurse

    # Prepare log file does not exist, create
    If((Test-Path $VSILogFile) -eq $false) {
        New-Item $VSILogFile -type file
    } 

    # Bypassing identity of the remote computer verification
    reg add "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client" /v "AuthenticationLevelOverride" /t "REG_DWORD" /d 0 /f

    # Checking if Session Monitor is running.
    $ProcessActive = Get-Process SessionMonitor -ErrorAction SilentlyContinue
    if($ProcessActive -eq $null)
    {
        # Starting the Session Monitor.
        Write-host (date -Format hh:mm:ss)   -   Starting the Session Monitor -ForegroundColor Yellow -Verbose
        $SessionMointor = Join-Path -ChildPath \_VSI_Binaries\Launcher\SessionMonitor.exe -Path $vsishare
        Invoke-Expression -Command $SessionMointor
    }
        else
    {
        # Session Monitor is already running.
        Write-host (date -Format hh:mm:ss)   -   Session Monitor is already running -ForegroundColor Yellow -Verbose
    }

    # Start Launcher Workflow
    Invoke-Expression ($vsishare + "\_VSI_Binaries\Connectors\RDPConnect.exe /server $launchers /user $domainname\Launcher-v4 /password Password! /nowarning /display 1600x900" )

    # Wait 30 seconds for launcher to settle
    Start-Sleep -s 30

    # Begin test
    Write-host (date -Format hh:mm:ss)   -   Starting the Login VSI Test $testname -ForegroundColor Yellow -Verbose
    Invoke-Expression ($vsishare + "\_VSI_ManagementConsole\LoginVSICMD.exe -testname $Testname -profile $VSIProfileName")
    Write-host (date -Format hh:mm:ss)   -   Sleeping for $Duration minutes while test executes -ForegroundColor Green -Verbose

    # while test is running, do the following every minute
    for($count = 1; $count -le $Duration; $count++) 
    {
        Start-sleep -s 60
        Write-host (date -Format hh:mm:ss)   -   Test $Testname running. Time Elapsed - $count of $Duration minutes -ForegroundColor Yellow -Verbose

        # test if LoginVSI encountered an error
        # Find newest log directory. This will be the currently running test
        $VSILogDir = (Get-ChildItem -Path $vsishare\_VSI_Logfiles | sort LastwriteTime | Select -last 1).Name
        
        # Look for the error log folders. 
        If(Test-path -Path $VSIShare\_VSI_Logfiles\$VSILogDir\Debug\ErrorShots)  {
            
            # Look for a JPG file. This is an error screenshot that means the test failed
            $debugfiles = get-childitem -path $VSIShare\_VSI_Logfiles\$VSILogDir\Debug\ErrorShots
            Foreach($DebugFile in $debugfiles) {
                If($Debugfile.name -like "*-E.jpg") {
                    Write-host (date -Format hh:mm:ss)   -   ERROR with Test $Testname -ForegroundColor Red -Verbose
            
                    # Append result of current test
                    $time = date -format "yyyy-M-dd hh:mm:ss"
                    add-content -path $VSILogFile "[FAILURE] $time   -   $MasterImage Test $Testname failed at $count minutes"

                    # Test failed. Exit from test
                    Return 
                }
            } 
        }
    }
    $time = date -format "yyyy-M-dd hh:mm:ss"
    Write-host $time   -   SUCCESS - Test $Testname is Complete! -ForegroundColor Green -Verbose

    # Append result of current test to log file
    add-content -path $VSILogFile "[SUCCESS] $time   -   $MasterImage Test $Testname is Complete!"
}
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