#$cred = Get-Credential
# または
#（事前に Get-Credential | Export-Clixml $HOME\vm01-cred.xml でXMLを作成）
#$cred = Import-Clixml $HOME\vm01-cred.xml
# または
$username = ".\Administrator"
$password = "P@ssw0rd!"
$securePassword = ConvertTo-SecureString $password -AsPlainText -Force
$cred = [PSCredential]::new($username, $securePassword)

$vmName = "vm01"
$testScriptPath = "E:\Tools\TestScript.ps1"
$guestTargetPath = "C:\"

$vm = Get-VM -Name $vmName -ErrorAction Stop

# Create Checkpoint
$vm | Checkpoint-VM -SnapshotName "PreTest"
$lastcheckpoint = $vm | Get-VMSnapshot | Sort CreationTime | Select -Last 1

# Enable VMGuestSvc
$guestSvcDefault = (Get-VMIntegrationService -VMName $vm.Name "ゲスト サービス インターフェイス").Enabled
if (!$guestSvcDefault) {
  Enable-VMIntegrationService -VMName $vm.Name "ゲスト サービス インターフェイス"
}

# Start VM
$vm | start-VM -ErrorAction Stop
while ($vm.Heartbeat -notlike "Ok*") {
    Start-Sleep -Seconds 1
}
Write-Host "$($vm.Name) is Up."

# Copy Test Script
Copy-VMFile ｰName $vm.Name -SourcePath $testScriptPath -DestinationPath $guestTargetPath -FileSource Host -Force

# Run Test
$testScript = Join-Path "C:\" (Split-Path $testScriptPath -Leaf)

$result = Invoke-Command -VMName $vm.Name -Credential $cred -ScriptBlock { & $using:TestScript } 

# Restore and Remove Checkpoint
$lastcheckpoint | Restore-VMSnapshot -Confirm:$false
$lastcheckpoint | Remove-VMSnapshot

# Test result
$result