Add tests for AuthenticodeCheck warning in Save and Update cmdlets

Co-authored-by: alerickson <25858831+alerickson@users.noreply.github.com>

Author: Copilot

test/SavePSResourceTests/SavePSResourceV2.Tests.ps1

@@ -202,6 +202,13 @@ Describe 'Test HTTP Save-PSResource for V2 Server Protocol' -tags 'CI' {
         $err[1].FullyQualifiedErrorId | Should -Contain "InstallPackageFailure,Microsoft.PowerShell.PSResourceGet.Cmdlets.SavePSResource"
     }
 
+    # Test that AuthenticodeCheck parameter displays warning on non-Windows
+    It "Save with AuthenticodeCheck on non-Windows should display warning" -Skip:(Get-IsWindows) {
+        Save-PSResource -Name $testModuleName -Repository $PSGalleryName -TrustRepository -Path $SaveDir -AuthenticodeCheck -WarningVariable warn -WarningAction SilentlyContinue
+        $warn | Should -Contain "Authenticode check cannot be performed on Linux or MacOS."
+        Test-Path "$SaveDir/$testModuleName" | Should -Be $true
+    }
+
     # Save resource that requires license
     It "Save resource that requires accept license with -AcceptLicense flag" {
         $pkg = Save-PSResource -Repository $PSGalleryName -TrustRepository -Path $SaveDir -Name $testModuleNameWithLicense -AcceptLicense -PassThru

test/UpdatePSResourceTests/UpdatePSResourceV2.Tests.ps1

@@ -432,4 +432,11 @@ Describe 'Test HTTP Update-PSResource for V2 Server Protocol' -tags 'CI' {
         $err[0].FullyQualifiedErrorId | Should -Contain "GetAuthenticodeSignatureError,Microsoft.PowerShell.PSResourceGet.Cmdlets.UpdatePSResource"
         $err[1].FullyQualifiedErrorId | Should -BeExactly "InstallPackageFailure,Microsoft.PowerShell.PSResourceGet.Cmdlets.UpdatePSResource"
     }
+
+    # Test that AuthenticodeCheck parameter displays warning on non-Windows
+    It "Update with AuthenticodeCheck on non-Windows should display warning" -Skip:(Get-IsWindows) {
+        Install-PSResource -Name $testModuleName -Repository $PSGalleryName -TrustRepository
+        Update-PSResource -Name $testModuleName -AuthenticodeCheck -Repository $PSGalleryName -TrustRepository -WarningVariable warn -WarningAction SilentlyContinue
+        $warn | Should -Contain "Authenticode check cannot be performed on Linux or MacOS."
+    }
 }