fix: match tweak presets and app-removal scope by stable ID instead of translatable text (#737)

Config/Features.json

@@ -2,50 +2,62 @@
   "Version": "1.0",
   "Categories": [
     {
+      "CategoryId": "PrivacySuggestedContent",
       "Name": "Privacy & Suggested Content",
       "Icon": ""
     },
     {
+      "CategoryId": "System",
       "Name": "System",
       "Icon": ""
     },
     {
+      "CategoryId": "StartMenuSearch",
       "Name": "Start Menu & Search",
       "Icon": ""
     },
     {
+      "CategoryId": "AI",
       "Name": "AI",
       "Icon": ""
     },
     {
+      "CategoryId": "WindowsUpdate",
       "Name": "Windows Update",
       "Icon": ""
     },
     {
+      "CategoryId": "Taskbar",
       "Name": "Taskbar",
       "Icon": ""
     },
     {
+      "CategoryId": "Appearance",
       "Name": "Appearance",
       "Icon": ""
     },
     {
+      "CategoryId": "FileExplorer",
       "Name": "File Explorer",
       "Icon": ""
     },
     {
+      "CategoryId": "Gaming",
       "Name": "Gaming",
       "Icon": ""
     },
     {
+      "CategoryId": "MultiTasking",
       "Name": "Multi-tasking",
       "Icon": ""
     },
     {
+      "CategoryId": "OptionalWindowsFeatures",
       "Name": "Optional Windows Features",
       "Icon": ""
     },
     {
+      "CategoryId": "Other",
       "Name": "Other",
       "Icon": ""
     }

Scripts/GUI/MainWindow-AppSelection.ps1

@@ -174,6 +174,10 @@ function Update-AppSelectionStatus {
     }
 }
 
+<#
+    .SYNOPSIS
+        Updates the app-removal scope description to match the selected ComboBoxItem.
+#>
 function Update-AppRemovalScopeDescription {
     param(
         [System.Windows.Controls.ComboBox]$AppRemovalScopeCombo,
@@ -182,20 +186,58 @@ function Update-AppRemovalScopeDescription {
 
     $selectedItem = $AppRemovalScopeCombo.SelectedItem
     if ($selectedItem) {
-        switch ($selectedItem.Content) {
+        # Content is the display text and will change once translated; Name is stable.
-            "All users" {
+        switch ($selectedItem.Name) {
+            "AppRemovalScopeAllUsers" {
                 $AppRemovalScopeDescription.Text = "Apps will be removed for all users and from the Windows image to prevent reinstallation for new users."
             }
-            "Current user only" {
+            "AppRemovalScopeCurrentUser" {
                 $AppRemovalScopeDescription.Text = "Apps will only be removed for the current user."
             }
-            "Target user only" {
+            "AppRemovalScopeTargetUser" {
                 $AppRemovalScopeDescription.Text = "Apps will only be removed for the specified target user."
             }
         }
     }
 }
 
+<#
+    .SYNOPSIS
+        Tests whether the app-removal scope combo is currently set to "Target user only".
+#>
+function Test-AppRemovalScopeTargetsOtherUser {
+    param(
+        [System.Windows.Controls.ComboBox]$AppRemovalScopeCombo
+    )
+
+    return ($AppRemovalScopeCombo -and $AppRemovalScopeCombo.SelectedItem -and $AppRemovalScopeCombo.SelectedItem.Name -eq 'AppRemovalScopeTargetUser')
+}
+
+<#
+    .SYNOPSIS
+        Resolves the -AppRemovalTarget value for the selected app-removal scope.
+#>
+function Get-AppRemovalScopeTarget {
+    param(
+        [System.Windows.Controls.ComboBox]$AppRemovalScopeCombo,
+        [System.Windows.Controls.TextBox]$OtherUsernameTextBox
+    )
+
+    $selectedItem = $AppRemovalScopeCombo.SelectedItem
+    if (-not $selectedItem) { return $null }
+
+    if (Test-AppRemovalScopeTargetsOtherUser -AppRemovalScopeCombo $AppRemovalScopeCombo) {
+        return $OtherUsernameTextBox.Text.Trim()
+    }
+
+    switch ($selectedItem.Name) {
+        "AppRemovalScopeAllUsers" { return 'AllUsers' }
+        "AppRemovalScopeCurrentUser" { return 'CurrentUser' }
+    }
+
+    return $null
+}
+
 function Invoke-AppPreset {
     param(
         [System.Windows.Controls.Panel]$AppsPanel,

Scripts/GUI/MainWindow-Deployment.ps1

@@ -219,8 +219,8 @@ function Get-TweakPresetControlMap {
     .PARAMETER Window
         The window that owns the visible tweak controls.
 
-    .PARAMETER Category
+    .PARAMETER CategoryId
-        The category whose mapped controls are included.
+        The stable CategoryId (from Features.json) whose mapped controls are included.
 
     .OUTPUTS
         System.Collections.Hashtable. Control metadata keyed by control name.
@@ -228,7 +228,7 @@ function Get-TweakPresetControlMap {
 function Get-CategoryTweakPresetMap {
     param(
         [System.Windows.Window]$Window,
-        [string]$Category
+        [string]$CategoryId
     )
 
     $presetMap = @{}
@@ -236,7 +236,7 @@ function Get-CategoryTweakPresetMap {
 
     foreach ($controlName in $script:UiControlMappings.Keys) {
         $mapping = $script:UiControlMappings[$controlName]
-        if ($mapping.Category -ne $Category) { continue }
+        if ($mapping.CategoryId -ne $CategoryId) { continue }
 
         $control = $Window.FindName($controlName)
         if (-not $control -or $control.Visibility -ne 'Visible') { continue }
@@ -403,8 +403,8 @@ function Initialize-TweakPresetSources {
 
     $script:DefaultTweakPresetMap = Get-TweakPresetControlMap -Window $Window -SettingsJson $DefaultSettingsJson
     $script:LastUsedTweakPresetMap = Get-TweakPresetControlMap -Window $Window -SettingsJson $LastUsedSettingsJson
-    $script:PrivacyTweakPresetMap = Get-CategoryTweakPresetMap -Window $Window -Category 'Privacy & Suggested Content'
+    $script:PrivacyTweakPresetMap = Get-CategoryTweakPresetMap -Window $Window -CategoryId 'PrivacySuggestedContent'
-    $script:AITweakPresetMap = Get-CategoryTweakPresetMap -Window $Window -Category 'AI'
+    $script:AITweakPresetMap = Get-CategoryTweakPresetMap -Window $Window -CategoryId 'AI'
 
     $presetLastUsedTweaksBtn = $Window.FindName('PresetLastUsedTweaksBtn')
     if ($presetLastUsedTweaksBtn) {
@@ -478,11 +478,14 @@ function Test-OtherUsername {
         [System.Windows.Window]$Window,
         [System.Windows.Controls.ComboBox]$UserSelectionCombo,
         [System.Windows.Controls.TextBox]$OtherUsernameTextBox,
-        [System.Windows.Controls.TextBlock]$UsernameValidationMessage
+        [System.Windows.Controls.TextBlock]$UsernameValidationMessage,
+        [System.Windows.Controls.ComboBox]$AppRemovalScopeCombo
     )
 
-    # Only validate if "Other User" is selected
+    # Only validate if "Other User" is the deployment target, or "Target user only" is the app-removal scope
-    if ($UserSelectionCombo.SelectedIndex -ne 1) {
+    $isOtherUserSelected = ($UserSelectionCombo.SelectedIndex -eq 1)
+    $isAppRemovalTargetUserSelected = Test-AppRemovalScopeTargetsOtherUser -AppRemovalScopeCombo $AppRemovalScopeCombo
+    if (-not $isOtherUserSelected -and -not $isAppRemovalTargetUserSelected) {
         return $true
     }
 

Scripts/GUI/MainWindow-TweaksBuilder.ps1

@@ -234,8 +234,17 @@ function New-DynamicTweakControls {
         foreach ($c in $featuresJson.Categories) {
             $categoryName = if ($c -is [string]) { $c } else { $c.Name }
             if ($categoriesPresent.ContainsKey($categoryName)) {
-                # Store the full category object (or create one with default icon for string categories)
+                # Store the full category object (or create one with default icon for string categories).
-                $categoryObj = if ($c -is [string]) { @{Name = $c; Icon = '' } } else { $c }
+                # A category without its own CategoryId falls back to its Name, same as before CategoryId existed.
+                $categoryObj = if ($c -is [string]) {
+                    @{Name = $c; CategoryId = $c; Icon = '' }
+                }
+                elseif (-not $c.CategoryId) {
+                    @{Name = $c.Name; CategoryId = $c.Name; Icon = $c.Icon }
+                }
+                else {
+                    $c
+                }
                 $orderedCategories += $categoryObj
             }
         }
@@ -243,7 +252,7 @@ function New-DynamicTweakControls {
     else {
         # For backward compatibility, create category objects from keys
         foreach ($catName in $categoriesPresent.Keys) {
-            $orderedCategories += @{Name = $catName; Icon = '' }
+            $orderedCategories += @{Name = $catName; CategoryId = $catName; Icon = '' }
         }
     }
 
@@ -255,6 +264,7 @@ function New-DynamicTweakControls {
 
     foreach ($categoryObj in $orderedCategories) {
         $categoryName = $categoryObj.Name
+        $categoryId = $categoryObj.CategoryId
 
         # Card is created lazily on the first rendered item
         $panel = $null
@@ -359,7 +369,7 @@ function New-DynamicTweakControls {
                             try { $lblBorderObj = $Window.FindName("$comboName`_LabelBorder") } catch {}
                             if ($lblBorderObj) { $lblBorderObj.ToolTip = $tipBlock }
                         }
-                        $script:UiControlMappings[$comboName] = @{ Type = 'feature'; FeatureId = $soleFeature.FeatureId; Label = $soleFeature.Label; Category = $categoryName }
+                        $script:UiControlMappings[$comboName] = @{ Type = 'feature'; FeatureId = $soleFeature.FeatureId; Label = $soleFeature.Label; Category = $categoryName; CategoryId = $categoryId }
                     }
                     continue
                 }
@@ -379,7 +389,7 @@ function New-DynamicTweakControls {
                     try { $lblBorderObj = $Window.FindName("$comboName`_LabelBorder") } catch {}
                     if ($lblBorderObj) { $lblBorderObj.ToolTip = $tipBlock }
                 }
-                $script:UiControlMappings[$comboName] = @{ Type = 'group'; Values = $filteredValues; Label = $group.Label; Category = $categoryName }
+                $script:UiControlMappings[$comboName] = @{ Type = 'group'; Values = $filteredValues; Label = $group.Label; Category = $categoryName; CategoryId = $categoryId }
             }
             elseif ($item.Type -eq 'feature') {
                 $feature = $item.Data
@@ -406,7 +416,7 @@ function New-DynamicTweakControls {
                     try { $lblBorderObj = $Window.FindName("$comboName`_LabelBorder") } catch {}
                     if ($lblBorderObj) { $lblBorderObj.ToolTip = $tipBlock }
                 }
-                $script:UiControlMappings[$comboName] = @{ Type = 'feature'; FeatureId = $feature.FeatureId; Label = $feature.Label; Category = $categoryName }
+                $script:UiControlMappings[$comboName] = @{ Type = 'feature'; FeatureId = $feature.FeatureId; Label = $feature.Label; Category = $categoryName; CategoryId = $categoryId }
             }
         }
     }

Scripts/GUI/Show-MainWindow.ps1

@@ -577,6 +577,7 @@ function Show-MainWindow {
     # ---- App removal scope combo ----
     $appRemovalScopeCombo.Add_SelectionChanged({
         Update-AppRemovalScopeDescription -AppRemovalScopeCombo $appRemovalScopeCombo -AppRemovalScopeDescription $appRemovalScopeDescription
+        Test-OtherUsername -Window $window -UserSelectionCombo $userSelectionCombo -OtherUsernameTextBox $otherUsernameTextBox -UsernameValidationMessage $usernameValidationMessage -AppRemovalScopeCombo $appRemovalScopeCombo | Out-Null
     })
 
     # ---- Other username text box ----
@@ -588,12 +589,12 @@ function Show-MainWindow {
             $usernameTextBoxPlaceholder.Visibility = 'Collapsed'
         }
         Update-UserSelectionDescription -Window $window -UserSelectionCombo $userSelectionCombo -OtherUsernameTextBox $otherUsernameTextBox -UserSelectionDescription $userSelectionDescription
-        Test-OtherUsername -Window $window -UserSelectionCombo $userSelectionCombo -OtherUsernameTextBox $otherUsernameTextBox -UsernameValidationMessage $usernameValidationMessage | Out-Null
+        Test-OtherUsername -Window $window -UserSelectionCombo $userSelectionCombo -OtherUsernameTextBox $otherUsernameTextBox -UsernameValidationMessage $usernameValidationMessage -AppRemovalScopeCombo $appRemovalScopeCombo | Out-Null
     })
 
     # ---- Validate target user helper ----
     $ensureValidTargetUserOrWarn = {
-        if (-not (Test-OtherUsername -Window $window -UserSelectionCombo $userSelectionCombo -OtherUsernameTextBox $otherUsernameTextBox -UsernameValidationMessage $usernameValidationMessage)) {
+        if (-not (Test-OtherUsername -Window $window -UserSelectionCombo $userSelectionCombo -OtherUsernameTextBox $otherUsernameTextBox -UsernameValidationMessage $usernameValidationMessage -AppRemovalScopeCombo $appRemovalScopeCombo)) {
             $validationMessage = if (-not [string]::IsNullOrWhiteSpace($usernameValidationMessage.Text)) {
                 $usernameValidationMessage.Text
             }
@@ -672,13 +673,9 @@ function Show-MainWindow {
             Add-Parameter 'RemoveApps'
             Add-Parameter 'Apps' ($selectedApps -join ',')
 
-            $selectedScopeItem = $appRemovalScopeCombo.SelectedItem
+            $scopeTarget = Get-AppRemovalScopeTarget -AppRemovalScopeCombo $appRemovalScopeCombo -OtherUsernameTextBox $otherUsernameTextBox
-            if ($selectedScopeItem) {
+            if ($scopeTarget) {
-                switch ($selectedScopeItem.Content) {
+                Add-Parameter 'AppRemovalTarget' $scopeTarget
-                    "All users" { Add-Parameter 'AppRemovalTarget' 'AllUsers' }
-                    "Current user only" { Add-Parameter 'AppRemovalTarget' 'CurrentUser' }
-                    "Target user only" { Add-Parameter 'AppRemovalTarget' ($otherUsernameTextBox.Text.Trim()) }
-                }
             }
         }
 

Tests/MainWindow-AppSelection.Tests.ps1

@@ -117,14 +117,27 @@ Describe 'Get-PendingTweakActions' {
         $checkBox = New-Object System.Windows.Controls.CheckBox
         $checkBox.Visibility = 'Visible'
         $window.RegisterName('DisableTelemetryCheckBox', $checkBox)
-        $script:UiControlMappings = @{ DisableTelemetryCheckBox = [PSCustomObject]@{ Category = 'Privacy'; Type = 'feature'; FeatureId = 'DisableTelemetry' } }
+        $script:UiControlMappings = @{ DisableTelemetryCheckBox = [PSCustomObject]@{ Category = 'Privacy & Suggested Content'; CategoryId = 'PrivacySuggestedContent'; Type = 'feature'; FeatureId = 'DisableTelemetry' } }
 
-        $map = Get-CategoryTweakPresetMap -Window $window -Category 'Privacy'
+        $map = Get-CategoryTweakPresetMap -Window $window -CategoryId 'PrivacySuggestedContent'
 
         $map['DisableTelemetryCheckBox'].ControlType | Should -Be 'CheckBox'
         $map['DisableTelemetryCheckBox'].DesiredValue | Should -BeTrue
     }
 
+    It 'matches a mapping whose CategoryId fell back to its Name, for a category missing CategoryId' {
+        $window = New-TestWindow
+        $checkBox = New-Object System.Windows.Controls.CheckBox
+        $checkBox.Visibility = 'Visible'
+        $window.RegisterName('LegacyCheckBox', $checkBox)
+        # New-DynamicTweakControls falls back to Name when a category has no CategoryId of its own.
+        $script:UiControlMappings = @{ LegacyCheckBox = [PSCustomObject]@{ Category = 'Legacy Category'; CategoryId = 'Legacy Category'; Type = 'feature'; FeatureId = 'SomeFeature' } }
+
+        $map = Get-CategoryTweakPresetMap -Window $window -CategoryId 'Legacy Category'
+
+        $map['LegacyCheckBox'].ControlType | Should -Be 'CheckBox'
+    }
+
     It 'updates navigation visibility and progress indicators for an interior tab' {
         $window = New-TestWindow
         $tabControl = New-Object System.Windows.Controls.TabControl
@@ -142,6 +155,86 @@ Describe 'Get-PendingTweakActions' {
     }
 }
 
+Describe 'Update-AppRemovalScopeDescription' {
+    It 'matches on the ComboBoxItem Name rather than its (translatable) Content for <Name>' -ForEach @(
+        @{ Name = 'AppRemovalScopeAllUsers'; ExpectedText = 'Apps will be removed for all users and from the Windows image to prevent reinstallation for new users.' }
+        @{ Name = 'AppRemovalScopeCurrentUser'; ExpectedText = 'Apps will only be removed for the current user.' }
+        @{ Name = 'AppRemovalScopeTargetUser'; ExpectedText = 'Apps will only be removed for the specified target user.' }
+    ) {
+        $combo = New-Object System.Windows.Controls.ComboBox
+        $item = New-Object System.Windows.Controls.ComboBoxItem
+        $item.Name = $Name
+        $item.Content = 'Texto traducido'
+        $combo.Items.Add($item) | Out-Null
+        $combo.SelectedItem = $item
+        $description = New-Object System.Windows.Controls.TextBlock
+
+        Update-AppRemovalScopeDescription -AppRemovalScopeCombo $combo -AppRemovalScopeDescription $description
+
+        $description.Text | Should -Be $ExpectedText
+    }
+}
+
+Describe 'Get-AppRemovalScopeTarget' {
+    It 'matches on the ComboBoxItem Name rather than its (translatable) Content for <Name>' -ForEach @(
+        @{ Name = 'AppRemovalScopeAllUsers'; ExpectedTarget = 'AllUsers' }
+        @{ Name = 'AppRemovalScopeCurrentUser'; ExpectedTarget = 'CurrentUser' }
+    ) {
+        $combo = New-Object System.Windows.Controls.ComboBox
+        $item = New-Object System.Windows.Controls.ComboBoxItem
+        $item.Name = $Name
+        $item.Content = 'Texto traducido'
+        $combo.Items.Add($item) | Out-Null
+        $combo.SelectedItem = $item
+        $usernameBox = New-Object System.Windows.Controls.TextBox
+
+        Get-AppRemovalScopeTarget -AppRemovalScopeCombo $combo -OtherUsernameTextBox $usernameBox | Should -Be $ExpectedTarget
+    }
+
+    It 'returns the trimmed username for the target-user scope' {
+        $combo = New-Object System.Windows.Controls.ComboBox
+        $item = New-Object System.Windows.Controls.ComboBoxItem
+        $item.Name = 'AppRemovalScopeTargetUser'
+        $item.Content = 'Texto traducido'
+        $combo.Items.Add($item) | Out-Null
+        $combo.SelectedItem = $item
+        $usernameBox = New-Object System.Windows.Controls.TextBox
+        $usernameBox.Text = '  jdoe  '
+
+        Get-AppRemovalScopeTarget -AppRemovalScopeCombo $combo -OtherUsernameTextBox $usernameBox | Should -Be 'jdoe'
+    }
+
+    It 'returns null when nothing is selected' {
+        $combo = New-Object System.Windows.Controls.ComboBox
+        $usernameBox = New-Object System.Windows.Controls.TextBox
+
+        Get-AppRemovalScopeTarget -AppRemovalScopeCombo $combo -OtherUsernameTextBox $usernameBox | Should -BeNullOrEmpty
+    }
+
+    It 'returns null for an unrecognized ComboBoxItem Name' {
+        $combo = New-Object System.Windows.Controls.ComboBox
+        $item = New-Object System.Windows.Controls.ComboBoxItem
+        $item.Name = 'SomeUnrelatedControl'
+        $combo.Items.Add($item) | Out-Null
+        $combo.SelectedItem = $item
+        $usernameBox = New-Object System.Windows.Controls.TextBox
+
+        Get-AppRemovalScopeTarget -AppRemovalScopeCombo $combo -OtherUsernameTextBox $usernameBox | Should -BeNullOrEmpty
+    }
+
+    It 'returns an empty string for the target-user scope when the username is blank' {
+        $combo = New-Object System.Windows.Controls.ComboBox
+        $item = New-Object System.Windows.Controls.ComboBoxItem
+        $item.Name = 'AppRemovalScopeTargetUser'
+        $combo.Items.Add($item) | Out-Null
+        $combo.SelectedItem = $item
+        $usernameBox = New-Object System.Windows.Controls.TextBox
+        $usernameBox.Text = '   '
+
+        Get-AppRemovalScopeTarget -AppRemovalScopeCombo $combo -OtherUsernameTextBox $usernameBox | Should -BeExactly ''
+    }
+}
+
 Describe 'Set-WindowThemeResources' {
     It 'populates themed resources and selects the Windows 11 icon font' {
         $window = New-TestWindow

Tests/MainWindow-Deployment.Tests.ps1

@@ -1,6 +1,40 @@
 BeforeAll {
+    Add-Type -AssemblyName PresentationFramework
+    function Test-TargetUserName { param($UserName) }
+    . (Join-Path $PSScriptRoot '..\Scripts\GUI\MainWindow-AppSelection.ps1')
     . (Join-Path $PSScriptRoot '..\Scripts\GUI\MainWindow-Deployment.ps1')
     . (Join-Path $PSScriptRoot '..\Scripts\GUI\Get-SystemUsesDarkMode.ps1')
+
+    function New-TestWindow {
+        $window = New-Object System.Windows.Window
+        $window.Resources['ValidationErrorColor'] = [System.Windows.Media.Brushes]::Red
+        $window.Resources['ValidationSuccessColor'] = [System.Windows.Media.Brushes]::Green
+        return $window
+    }
+
+    function New-UserSelectionCombo {
+        param([int]$SelectedIndex = 0)
+
+        $combo = New-Object System.Windows.Controls.ComboBox
+        'Current User', 'Other User', 'Windows Default User (Sysprep)' | ForEach-Object {
+            $combo.Items.Add((New-Object System.Windows.Controls.ComboBoxItem -Property @{ Content = $_ })) | Out-Null
+        }
+        $combo.SelectedIndex = $SelectedIndex
+        return $combo
+    }
+
+    function New-AppRemovalScopeCombo {
+        param([string]$SelectedItemName)
+
+        $combo = New-Object System.Windows.Controls.ComboBox
+        if ($SelectedItemName) {
+            $item = New-Object System.Windows.Controls.ComboBoxItem
+            $item.Name = $SelectedItemName
+            $combo.Items.Add($item) | Out-Null
+            $combo.SelectedItem = $item
+        }
+        return $combo
+    }
 }
 
 Describe 'Get-UndoFeatureLabel' {
@@ -31,3 +65,44 @@ Describe 'Get-UndoFeatureLabel' {
         Get-SystemUsesDarkMode | Should -BeFalse
     }
 }
+
+Describe 'Test-OtherUsername' {
+    It 'skips validation when neither the deployment target nor the app-removal scope needs a username' {
+        Mock Test-TargetUserName { [PSCustomObject]@{ IsValid = $false; Message = 'unused' } }
+        $window = New-TestWindow
+        $userCombo = New-UserSelectionCombo -SelectedIndex 0
+        $usernameBox = New-Object System.Windows.Controls.TextBox
+        $message = New-Object System.Windows.Controls.TextBlock
+        $scopeCombo = New-AppRemovalScopeCombo -SelectedItemName 'AppRemovalScopeAllUsers'
+
+        Test-OtherUsername -Window $window -UserSelectionCombo $userCombo -OtherUsernameTextBox $usernameBox -UsernameValidationMessage $message -AppRemovalScopeCombo $scopeCombo | Should -BeTrue
+        Should -Invoke Test-TargetUserName -Times 0 -Exactly
+    }
+
+    It 'validates when the deployment target is Other User' {
+        Mock Test-TargetUserName { [PSCustomObject]@{ IsValid = $false; Message = 'Please enter a username' } }
+        $window = New-TestWindow
+        $userCombo = New-UserSelectionCombo -SelectedIndex 1
+        $usernameBox = New-Object System.Windows.Controls.TextBox
+        $usernameBox.Text = ''
+        $message = New-Object System.Windows.Controls.TextBlock
+
+        Test-OtherUsername -Window $window -UserSelectionCombo $userCombo -OtherUsernameTextBox $usernameBox -UsernameValidationMessage $message | Should -BeFalse
+    }
+
+    It 'validates when the app-removal scope is Target user only, even if the deployment target is not Other User' {
+        $window = New-TestWindow
+        $userCombo = New-UserSelectionCombo -SelectedIndex 0
+        $usernameBox = New-Object System.Windows.Controls.TextBox
+        $usernameBox.Text = '  '
+        $message = New-Object System.Windows.Controls.TextBlock
+        $scopeCombo = New-AppRemovalScopeCombo -SelectedItemName 'AppRemovalScopeTargetUser'
+
+        Mock Test-TargetUserName { [PSCustomObject]@{ IsValid = $false; Message = 'Please enter a username' } }
+        Test-OtherUsername -Window $window -UserSelectionCombo $userCombo -OtherUsernameTextBox $usernameBox -UsernameValidationMessage $message -AppRemovalScopeCombo $scopeCombo | Should -BeFalse
+
+        $usernameBox.Text = 'jdoe'
+        Mock Test-TargetUserName { [PSCustomObject]@{ IsValid = $true; Message = 'User found: jdoe' } }
+        Test-OtherUsername -Window $window -UserSelectionCombo $userCombo -OtherUsernameTextBox $usernameBox -UsernameValidationMessage $message -AppRemovalScopeCombo $scopeCombo | Should -BeTrue
+    }
+}