diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..d2009a3
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,52 @@
+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@v4
+
+      - 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.PassThru = $true
+          $config.Run.Exit = $true
+          $config.Run.Path = '.\tests'
+          $config.Should.ErrorAction = 'Continue'
+          $config.TestResult.Enabled = $true
+
+          Invoke-Pester -Configuration $config
diff --git a/tests/rcgmsa.Tests.ps1 b/tests/rcgmsa.Tests.ps1
new file mode 100644
index 0000000..97ba8ee
--- /dev/null
+++ b/tests/rcgmsa.Tests.ps1
@@ -0,0 +1,157 @@
+BeforeAll {
+    $keeperSecret = @{
+        API_KEY  = '06ed1705-a2d5-4d16-b3b2-1a2814e7ef67'
+        DB_PASS  = 'SuperSecretPass'
+        Files    = '["license.key"]'
+        Keys     = 'Files'
+        'license.key' = [System.Text.Encoding]::UTF8.GetBytes('RealFileContent')
+    }
+    $scriptPath = "$PSScriptRoot/../rcgmsa.ps1"
+    $secretName = '9vb_wew-d6_AmgUNmIO6Ez'
+    $setupPath = "$PSScriptRoot/../vault.ps1"
+    $vaultName = 'devops'
+    $vaultPassword  = 'VaultPassword123'
+
+    function Get-Credential {
+        [CmdletBinding()]
+        param(
+            [Parameter(Mandatory=$false)]
+            [string]$UserName,
+
+            [Parameter(Mandatory=$false)]
+            [string]$Message
+        )
+        $securePass = ConvertTo-SecureString $vaultPassword -AsPlainText -Force
+        return [PSCredential]::new($UserName, $securePass)
+    }
+
+    $credFile = [System.IO.Path]::GetTempFileName()
+    . $setupPath -Path $credFile -Vault $vaultName
+
+    Remove-Item Function:\Get-Credential -ErrorAction Stop
+
+    [Environment]::SetEnvironmentVariable(
+        "VAULT",
+        $vaultPassword,
+        [System.EnvironmentVariableTarget]::User
+    )
+
+    $securePass = ConvertTo-SecureString $vaultPassword -AsPlainText -Force
+    Unlock-SecretStore -Password $securePass
+
+    Set-Secret -Name $secretName -Secret $keeperSecret -Vault $vaultName
+    $keeperSecret.Files = @($keeperSecret.Files.Trim('[]').Split(',').Trim())
+}
+
+Describe 'Integration Tests' {
+
+    Context 'Input Validation' {
+        It 'Should accept valid hostnames or IPs' {
+            { & $scriptPath -Command 'Get-Date' -Computers 'localhost','127.0.0.1' -User 'svc_account$' } | 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!"
+            { & $scriptPath -Command 'Get-Date' -Computers 'bad_host!' -User 'svc_account$' } | 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!"
+            { & $scriptPath -Command 'Get-Date' -Computers 'localhost' -User 'svc_account$' -Orbs 'bad_orb!' } | Should -Throw $expectedErr
+        }
+
+        It 'Should output a semantic version number' {
+            $output = & $scriptPath -v 6>&1
+            $output | Should -Match '^Version: \d+\.\d+\.\d+$'
+        }
+    }
+
+    Context 'Keeper Vault Integration' {
+        BeforeAll {
+            Mock Get-Secret {
+                [CmdletBinding()]
+                param(
+                    [Parameter(Position=0)]$Name,
+                    [Parameter(Position=1)]$FieldID,
+                    $Vault,
+                    [switch]$AsPlainText
+                )
+
+                if ($AsPlainText) {
+                    return $keeperSecret
+                }
+
+                return $keeperSecret[$FieldID]
+            }
+            Mock Invoke-Command { return 'Remote Execution Successful' }
+            Mock Join-Path { param($Path, $ChildPath) return "$Path\$ChildPath" }
+            Mock New-Item { return 'C:\Mock\Temp' }
+            Mock Remove-Item {}
+            Mock Set-Content {}
+        }
+
+        It 'Should retrieve secrets and process files when -Keeper is used' {
+            & $scriptPath -Command 'hostname' -Computers 'localhost' -User 'gmsa$' -Keeper $secretName -Vault 'devops'
+
+            $api_key = [Environment]::GetEnvironmentVariable('KEEPER_API_KEY', 'User')
+            $api_key | Should -Be $keeperSecret.API_KEY
+
+            [Environment]::SetEnvironmentVariable('KEEPER_API_KEY', $null, 'User')
+
+            Assert-MockCalled Set-Content -ParameterFilter {
+                $Path -match 'license.key'
+            } -Times 1
+        }
+
+        It 'Should inject KEEPER_ variables into the scriptblock' {
+            Mock Invoke-Command -MockWith { 
+                param($ScriptBlock) 
+                return $ScriptBlock.ToString() 
+            }
+
+            $sbContent = & $scriptPath -Command 'echo hi' -Computers 'localhost' -User 'gmsa$' -Keeper $secretName
+
+            $sbContent | Should -Match 'KEEPER_'
+            $sbContent | Should -Match '\[Environment\]::SetEnvironmentVariable'
+        }
+    }
+
+    Context 'Logic Branching' {
+        BeforeAll {
+            Mock New-Item { return 'C:\Mock\Temp' }
+            Mock Remove-Item {}
+            Mock Set-Content {}
+        }
+
+        It 'Should execute the orbs logic when provided' {
+            Mock Invoke-Command { return 'Jump Host Success' }
+
+            & $scriptPath -Command 'whoami' -Computers 'target1' -User 'gmsa$' -Orbs 'jump1'
+
+            Assert-MockCalled Invoke-Command -Times 1
+        }
+
+        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' }
+
+            & $scriptPath -Command 'hostname' -Computers 'localhost' -User 'gmsa$'
+
+            Assert-MockCalled Invoke-Command -Times 2
+            Assert-MockCalled Invoke-Command -ParameterFilter { 
+                $SessionOption.IncludePortInSPN -eq $true 
+            } -Times 1
+        }
+    }
+}
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!!!"