Customize welcome text from room and OU

tests/WelcomeWallpaper.Tests.ps1

@@ -12,15 +12,20 @@ $lookup = $ast.Find({
 }, $true)
 
 function Invoke-WelcomeFixture {
-    param($DirectoryGender, [string]$ExplicitGender)
+    param(
+        $DirectoryGender,
+        [string]$ExplicitGender,
+        [string]$DirectoryLocation = 'Sala de pruebas',
+        [string]$DirectoryOu = 'Laboratorio'
+    )
 
     # Replace only the external directory lookup. Execute the actual script,
     # including its validated parameters, metadata assignment and JPEG renderer.
     $fixtureJson = [pscustomobject]@{
         DisplayName = 'Usuario de prueba'
         Gender = $DirectoryGender
-        Location = 'Sala de pruebas'
-        OrganizationalUnit = 'Laboratorio'
+        Location = $DirectoryLocation
+        OrganizationalUnit = $DirectoryOu
     } | ConvertTo-Json -Compress
     $fixtureFunction = 'function Get-DirectoryWelcomeMetadata { param($UserName, $MachineName); ConvertFrom-Json ''' +
         $fixtureJson.Replace("'", "''") + ''' }'
@@ -69,4 +74,11 @@ Describe 'Welcome wallpaper with AD metadata' {
     It 'honors an explicit gender over directory metadata' {
         (Invoke-WelcomeFixture -DirectoryGender 'Female' -ExplicitGender 'Male').WelcomeHeading | Should Be 'Bienvenido,'
     }
+
+    It 'renders the flexible classroom and immediate OU as an access label' {
+        $result = Invoke-WelcomeFixture -DirectoryGender $null `
+            -DirectoryLocation 'Aula Flexible' `
+            -DirectoryOu 'Centro de Experiencia Digital'
+        $result.LocationText | Should Be 'Acceso al Aula Flexible del Centro de Experiencia Digital.'
+    }
 }