diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..99f1345
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,51 @@
+name: Test
+
+on:
+  push:
+    branches: [root]
+  pull_request:
+    branches: [root]
+  workflow_dispatch:
+
+defaults:
+  run:
+    shell: pwsh
+
+jobs:
+  test:
+    name: Validate
+    runs-on: windows-latest
+    steps:
+      - name: Checkout Repository
+        uses: actions/checkout@v6
+
+      - name: Install
+        run: |
+          Set-PSRepository PSGallery -InstallationPolicy Trusted
+          Install-Module -Name Pester -Scope CurrentUser
+          Install-Module -Name PSScriptAnalyzer -Scope CurrentUser
+
+      - name: Lint
+        run: |
+          $excludedRules = @(
+              'PSAvoidUsingConvertToSecureStringWithPlainText'
+          )
+          $results = Invoke-ScriptAnalyzer -ExcludeRule $excludedRules -Path .\rcgmsa.ps1 -Severity Error
+
+          if ($results) {
+              $results | Format-Table
+              Write-Error 'PSScriptAnalyzer found issues. Please fix them.' -ErrorAction Stop
+          } else {
+              Write-Host 'PSScriptAnalyzer passed.'
+          }
+
+      - name: Test
+        run: |
+          $config = New-PesterConfiguration
+          $config.Output.Verbosity = 'Detailed'
+          $config.Run.Exit = $true
+          $config.Run.Path = '.\tests'
+          $config.Should.ErrorAction = 'Continue'
+          $config.TestResult.Enabled = $true
+
+          Invoke-Pester -Configuration $config
diff --git a/rcgmsa.ps1 b/rcgmsa.ps1
index 15841bb..5e361fb 100644
--- a/rcgmsa.ps1
+++ b/rcgmsa.ps1
@@ -62,14 +62,16 @@ if ($v) {
 
 $account = (New-Object System.Management.Automation.PSCredential("$Domain\$User"))
 $command = $Command -replace 'javaopts\=', 'javaopts '
+$credential  = $null
 if ($Raw) {
     $sb = $command
 } else {
     $sb = [scriptblock]::Create($command)
 }
+$keeperFiles = $null
 $scriptPath = $MyInvocation.MyCommand.Path
 $serverName = $env:COMPUTERNAME
-$sessionOptions = New-PssessionOption -NoCompression
+$sessionOptions = New-PSSessionOption -NoCompression
 $sysTempDir = [System.IO.Path]::GetTempPath()
 $tempDir = Join-Path -Path $sysTempDir -ChildPath ([Guid]::NewGuid().ToString())
 
@@ -86,8 +88,8 @@ Write-Host "********************************************************************
 
 if ($Keeper) {
     $requiredModules = @(
-        'Microsoft.PowerShell.SecretStore',
         'Microsoft.PowerShell.SecretManagement',
+        'Microsoft.PowerShell.SecretStore',
         'SecretManagement.Keeper'
     )
 
@@ -107,11 +109,11 @@ if ($Keeper) {
         $vault_credential = [System.Environment]::GetEnvironmentVariable("VAULT", [System.EnvironmentVariableTarget]::User)
         $password = ConvertTo-SecureString -String $vault_credential -AsPlainText -Force
         Unlock-SecretStore -Password $password
-        $credential = Get-Secret -Vault $Vault $Keeper -AsPlainText -ErrorAction Stop
+        $credential = Get-Secret -Vault $Vault -Name $Keeper -AsPlainText -ErrorAction Stop
 
         if ('Files' -in $credential.Keys) {
             foreach ($filename in ($credential.Files)) {
-                $data = Get-Secret -Vault $Vault $Keeper $credential.Files[$filename]
+                $data = Get-Secret -Vault $Vault -Name "$Keeper.Files[$filename]"
                 $filepath = Join-Path -Path $tempDir -ChildPath $filename
                 Set-Content -Path $filepath -Value $data -AsByteStream
             }
@@ -120,8 +122,8 @@ if ($Keeper) {
         }
     } catch [Microsoft.PowerShell.SecretManagement.PasswordRequiredException]  {
         Write-Host "Unlocking Vault $Vault for one hour."
-        Unlock-SecretStore -Password $vault_credential
-        $credential = Get-Secret -Vault $Vault $Keeper -AsPlainText -ErrorAction Stop
+        Unlock-SecretStore -Password $password
+        $credential = Get-Secret -Vault $Vault -Name $Keeper -AsPlainText -ErrorAction Stop
     } catch [System.Exception] {
         Write-Error "Failed to retrieve Keeper secret.`nError: $($_.Exception.Message)"
         $host.SetShouldExit(1)
@@ -133,22 +135,23 @@ $parameters = @{
     ComputerName      = $Computers
     Credential        = $account
     ScriptBlock       = {
+        $cred = $using:credential
         $remoteSysTempDir = [System.IO.Path]::GetTempPath()
         $remoteTempDir = Join-Path -Path $remoteSysTempDir -ChildPath ([Guid]::NewGuid().ToString())
 
         New-Item -Path $remoteTempDir -ItemType Directory -Force | Out-Null
 
-        if ($credential) {
-            foreach ($field in ($credential.Keys)) {
+        if ($cred) {
+            foreach ($field in ($cred.Keys)) {
                 if ($field -ne 'Files') {
                     $name = "KEEPER_$($field.ToUpper())"
                     [Environment]::SetEnvironmentVariable(
                         $name,
-                        $credential[$field],
+                        $cred[$field],
                         [System.EnvironmentVariableTarget]::User
                     )
                 } else {
-                    foreach ($filename in $keeperFiles) {
+                    foreach ($filename in $using:keeperFiles) {
                         Copy-Item -Path $filename.FullName -Destination $remoteTempDir
                     }
                 }
@@ -156,7 +159,13 @@ $parameters = @{
         }
 
         if ($using:Orbs) {
-            Invoke-Command -ComputerName $using:Orbs -Credential $using:account -ScriptBlock { & $using:sb } -SessionOption $using:sessionOptions
+            $orbParameters = @{
+                ComputerName  = $using:Orbs
+                Credential    = $using:account
+                ScriptBlock   = { & $using:sb }
+                SessionOption = $using:sessionOptions
+            }
+            Invoke-Command @orbParameters
         } else {
             Invoke-Command -ScriptBlock { & $using:sb }
         }
@@ -188,7 +197,7 @@ try {
          ($spnRelatedTypes -contains $errorType) )
     {
         Write-Warning "First attempt failed with a possible SPN issue. Retrying with -IncludePortInSPN."
-        $sessionOptions = New-PssessionOption -IncludePortInSPN -NoCompression
+        $sessionOptions = New-PSSessionOption -IncludePortInSPN -NoCompression
         $remoteResults = Invoke-Command @parameters -SessionOption $sessionOptions
         Write-Host "$remoteResults"
     } else {
diff --git a/tests/rcgmsa.Tests.ps1 b/tests/rcgmsa.Tests.ps1
new file mode 100644
index 0000000..0cb00fc
--- /dev/null
+++ b/tests/rcgmsa.Tests.ps1
@@ -0,0 +1,169 @@
+BeforeAll {
+    $script:credFile      = [System.IO.Path]::GetTempFileName()
+    $script:keeperSecret  = @{
+        API_KEY  = '06ed1705-a2d5-4d16-b3b2-1a2814e7ef67'
+        DB_PASS  = 'SuperSecretPass'
+        Files    = '{"license.key": "FileID_123"}'
+        Keys     = 'Files'
+    }
+    $script:scriptPath    = "$PSScriptRoot/../rcgmsa.ps1"
+    $script:secretName    = '9vb_wew-d6_AmgUNmIO6Ez'
+    $script:setupPath     = "$PSScriptRoot/../vault.ps1"
+    $script:vaultName     = 'devops'
+    $script:vaultPassword = 'VaultPassword123'
+
+    function script:Get-Credential {
+        [CmdletBinding()]
+        param(
+            [Parameter(Mandatory=$false)]
+            [string]$UserName,
+
+            [Parameter(Mandatory=$false)]
+            [string]$Message
+        )
+        $securePass = ConvertTo-SecureString $script:vaultPassword -AsPlainText -Force
+        return [PSCredential]::new($UserName, $securePass)
+    }
+
+    . $script:setupPath -Path $script:credFile -Vault $script:vaultName
+
+    Remove-Item Function:\script:Get-Credential -ErrorAction SilentlyContinue
+
+    [Environment]::SetEnvironmentVariable(
+        "VAULT",
+        $script:vaultPassword,
+        [System.EnvironmentVariableTarget]::User
+    )
+
+    $securePass = ConvertTo-SecureString $script:vaultPassword -AsPlainText -Force
+    Unlock-SecretStore -Password $securePass
+
+    Set-Secret -Name $secretName -Secret $script:keeperSecret -Vault $script:vaultName
+
+    $nvc = [System.Collections.Specialized.NameValueCollection]::new()
+    $json = $script:keeperSecret.Files | ConvertFrom-Json
+    
+    foreach ($prop in $json.psobject.properties) {
+        $nvc.Add($prop.Name, $prop.Value) 
+    }
+    $script:keeperSecret.Files = $nvc
+
+    $script:keeperSecret["$($script:secretName).Files[license.key]"] = `
+        [System.Text.Encoding]::UTF8.GetBytes('RealFileContent')
+}
+
+Describe 'Integration Tests' {
+
+    Context 'Input Validation' {
+        It 'Should accept valid hostnames or IPs' {
+            { & $script:scriptPath -Command 'Get-Date' -Computers 'localhost','127.0.0.1' -User 'svc_account$' } |
+                Should -Not -Throw
+        }
+
+        It 'Should reject invalid characters in computer names' {
+            $expectedErr = "Cannot validate argument on parameter 'Computers'. Creativity meets catastrophe, invalid computer name: bad_host!"
+            { & $script:scriptPath -Command 'Get-Date' -Computers 'bad_host!' -User 'svc_account$' } |
+                Should -Throw $expectedErr
+        }
+
+        It 'Should reject invalid characters in orb names' {
+            $expectedErr = "Cannot validate argument on parameter 'Orbs'. For FQDN's sake, invalid computer name: bad_orb!"
+            { & $script:scriptPath -Command 'Get-Date' -Computers 'localhost' -User 'svc_account$' -Orbs 'bad_orb!' } |
+                Should -Throw $expectedErr
+        }
+
+        It 'Should output a semantic version number' {
+            $output = & $script:scriptPath -v 6>&1
+            $output | Should -Match '^Version: \d+\.\d+\.\d+$'
+        }
+    }
+
+    Context 'Keeper Vault Integration' {
+        BeforeAll {
+            Mock Get-Secret {
+                [CmdletBinding()]
+                param(
+                    [Parameter(Position=0)]$Name,
+                    [Parameter(Position=1)]$Vault,
+                    [switch]$AsPlainText
+                )
+
+                if ($AsPlainText) {
+                    return $script:keeperSecret
+                }
+
+                return $script:keeperSecret[$Name]
+            }
+        }
+
+        It 'Should retrieve secrets and process files when -Keeper is used' {
+            Mock Remove-Item -ParameterFilter { $Path -like '*\?*-?*-?*-?*-?*' } -MockWith {}
+
+            & $script:scriptPath -Command 'hostname' -Computers 'localhost' `
+                -User 'gmsa$' -Keeper $script:secretName -Vault 'devops'
+
+            $sysTemp = [System.IO.Path]::GetTempPath()
+            $foundFile = Get-ChildItem -Path $sysTemp -Filter 'license.key' -Recurse -File |
+                         Sort-Object CreationTime -Descending |
+                         Select-Object -First 1
+
+            $foundFile | Should -Not -BeNullOrEmpty
+            $foundFile.Name | Should -Be 'license.key'
+
+            $fileContent = [System.Text.Encoding]::UTF8.GetString(
+                [System.IO.File]::ReadAllBytes($foundFile.FullName)
+            )
+            $fileContent | Should -Be 'RealFileContent'
+
+            if ($foundFile) { 
+                Remove-Item -Path $foundFile.DirectoryName -Recurse -Force
+            }
+        }
+
+        It 'Should inject KEEPER_ variables into the scriptblock' {
+            & $script:scriptPath -Command 'whoami' -Computers 'localhost' `
+                -User 'gmsa$' -Keeper $script:secretName 6>&1 | Out-String
+
+            [Environment]::GetEnvironmentVariable(
+                'KEEPER_API_KEY', [System.EnvironmentVariableTarget]::User
+            ) | Should -Be $script:keeperSecret.API_KEY
+
+            [Environment]::GetEnvironmentVariable(
+                'KEEPER_DB_PASS', [System.EnvironmentVariableTarget]::User
+            ) | Should -Be $script:keeperSecret.DB_PASS
+        }
+    }
+
+    Context 'Logic Branching' {
+        It 'Should execute the orbs logic when provided' {
+            Mock Invoke-Command { return 'Jump Host Success' }
+
+            & $script:scriptPath -Command 'whoami' -Computers 'target1' -User 'gmsa$' -Orbs 'jump1'
+
+            Should -Invoke Invoke-Command -Times 1 -Exactly
+        }
+
+        It 'Should retry with -IncludePortInSPN if a specific SPN error occurs' {
+            Mock Invoke-Command -ParameterFilter {
+                -not ($SessionOption.IncludePortInSPN)
+            } -MockWith {
+                $err = [System.Management.Automation.ErrorRecord]::new(
+                    [Exception]::new('SPN Error'),
+                    '-2144108387,PSSessionStateBroken',
+                    [System.Management.Automation.ErrorCategory]::OpenError,
+                    $null
+                )
+                throw $err
+            }
+
+            Mock Invoke-Command -MockWith { return 'Retry Successful' }
+
+            & $script:scriptPath -Command 'hostname' -Computers 'localhost' -User 'gmsa$'
+
+            Should -Invoke Invoke-Command -Times 2 -Exactly
+            Should -Invoke Invoke-Command -ParameterFilter {
+                $SessionOption.IncludePortInSPN -eq $true
+            } -Times 1 -Exactly
+        }
+    }
+}
diff --git a/vault.ps1 b/vault.ps1
index 3570563..17b2ea3 100644
--- a/vault.ps1
+++ b/vault.ps1
@@ -40,24 +40,24 @@ $requiredModules.ForEach{
 }
 
 Write-Host "Getting secure store password"
-$credential = Get-Credential -UserName $vault
-$credential.Password | Export-Clixml -Path $path
+$credential = Get-Credential -UserName $Vault
+$credential.Password | Export-Clixml -Path $Path
 
-$password = Import-CliXml -Path $path
+$password = Import-CliXml -Path $Path
 $parameters = @{
-    Name = $vault
+    Name = $Vault
     ModuleName = $requiredModules[0]
     VaultParameters = @{
         Confirm = $false
         Interaction = $null
         Password = $password
-        PasswordTimeout = $timeout
+        PasswordTimeout = $Timeout
     }
     DefaultVault = $true
 }
 
-Write-Host "Registering [$vault] vault"
+Write-Host "Registering [$Vault] vault"
 [Environment]::SetEnvironmentVariable("VAULT", $password, [System.EnvironmentVariableTarget]::User)
 Register-SecretVault @parameters
-Remove-Item -Path $path -Force
+Remove-Item -Path $Path -Force
 Write-Host "All done!!!"