Don't warn about the list view window size from Get-PSReadLineOption

PSReadLine/Cmdlets.cs

@@ -634,9 +634,7 @@ public class GetPSReadLineOption : PSCmdlet
         [ExcludeFromCodeCoverage]
         protected override void EndProcessing()
         {
-            var options = PSConsoleReadLine.GetOptions();
-            WriteObject(options);
-            PSConsoleReadLine.WarnWhenWindowSizeTooSmallForView(options.PredictionViewStyle, this);
+            WriteObject(PSConsoleReadLine.GetOptions());
         }
     }
 

test/ListPredictionTest.cs

@@ -9,7 +9,7 @@ public partial class ReadLine
         // The source of truth is defined in 'Microsoft.PowerShell.PSConsoleReadLine+PredictionListView'.
         // Make sure the values are in sync.
         private const int MinWindowWidth = 50;
-        private const int MinWindowHeight = 15;
+        private const int MinWindowHeight = 5;
         private const int ListMaxWidth = 100;
         private const int SourceMaxWidth = 15;
 

test/ListScrollableViewTest.cs

@@ -1,4 +1,5 @@
 using System;
+using System.Management.Automation.Runspaces;
 using Microsoft.PowerShell;
 using Xunit;
 
@@ -910,5 +911,31 @@ public void ListView_TermSize_Warning()
                         NextLine))
             ));
         }
+
+        [SkippableFact]
+        public void ListView_TermSize_WarningOnlyFromSetOption()
+        {
+            Skip.If(ScreenReaderModeEnabled, "List view is not supported in screen reader mode.");
+
+            // The console is under the list view minimum. 'F2' switches the view without
+            // 'Set-PSReadLineOption', so the two cmdlets can be measured separately.
+            TestSetup(new TestConsole(keyboardLayout: _, width: 40, height: 4), KeyMode.Cmd);
+            using var disp = SetPrediction(PredictionSource.History, PredictionViewStyle.InlineView);
+            Test("", Keys(_.F2, _.Enter));
+
+            var iss = InitialSessionState.CreateDefault();
+            iss.Commands.Add(new SessionStateCmdletEntry("Get-PSReadLineOption", typeof(GetPSReadLineOption), helpFileName: null));
+            iss.Commands.Add(new SessionStateCmdletEntry("Set-PSReadLineOption", typeof(SetPSReadLineOption), helpFileName: null));
+            using var ps = System.Management.Automation.PowerShell.Create(iss);
+
+            var result = ps.AddCommand("Get-PSReadLineOption").Invoke();
+            var options = Assert.IsType<PSConsoleReadLineOptions>(Assert.Single(result).BaseObject);
+            Assert.Equal(PredictionViewStyle.ListView, options.PredictionViewStyle);
+            Assert.Empty(ps.Streams.Warning);
+
+            ps.Commands.Clear();
+            ps.AddCommand("Set-PSReadLineOption").AddParameter("PredictionViewStyle", PredictionViewStyle.ListView).Invoke();
+            Assert.Single(ps.Streams.Warning);
+        }
     }
 }