Respect -Shuffle:$false in Get-Random (#26457)

src/Microsoft.PowerShell.Commands.Utility/commands/utility/GetRandomCommandBase.cs

@@ -488,7 +488,7 @@ namespace Microsoft.PowerShell.Commands
         {
             if (EffectiveParameterSet == MyParameterSet.RandomListItem)
             {
-                if (ParameterSetName == ShuffleParameterSet)
+                if (Shuffle)
                 {
                     // this allows for $null to be in an array passed to InputObject
                     foreach (object item in InputObject ?? _nullInArray)

test/powershell/Modules/Microsoft.PowerShell.Utility/Get-Random.Tests.ps1

@@ -162,6 +162,12 @@ Describe "Get-Random" -Tags "CI" {
         $randomNumber | Should -BeIn 1, 2, 3, 5, 8, 13
     }
 
+    It "Should return a single random item when -Shuffle:`$false is used" {
+        $randomNumber = Get-Random -InputObject 1, 2, 3, 5, 8, 13 -Shuffle:$false
+        $randomNumber.Count | Should -Be 1
+        $randomNumber | Should -BeIn 1, 2, 3, 5, 8, 13
+    }
+
     It "Should return for a string collection " {
         $randomNumber = Get-Random -InputObject "red", "yellow", "blue"
         $randomNumber | Should -Be ("red" -or "yellow" -or "blue")