Yield UI thread between editor commands in tests

MonoDevelop.MSBuild.Tests.Editor/Completion/MSBuildCommitTests.cs

@@ -1,12 +1,8 @@
 // Copyright (c) Microsoft. All rights reserved.
 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
 
-using System;
 using System.Threading.Tasks;
 
-using Microsoft.VisualStudio.Text.Editor.Commanding;
-using MonoDevelop.MSBuild.Editor.Completion;
-
 using MonoDevelop.Xml.Editor.Tests.Extensions;
 
 using NUnit.Framework;
@@ -24,7 +20,7 @@ async Task TestTypeCommands (string filename, string before, string typeChars, s
 				await this.TestCommands (
 					before,
 					after,
-					[ (s) => s.Type (typeChars) ],
+					EditorAction.Type (typeChars),
 					filename: filename,
 					initialize: (tv) => {
 						tv.Options.SetOptionValue ("BraceCompletion/Enabled", true);

MonoDevelop.MSBuild.Tests.Editor/Refactorings/MSBuildEditorTestExtensions.cs

@@ -224,7 +224,13 @@ public static async Task TestCodeActionContext (
 			// the refactoring may have left multiple selections sp the user can e.g. type a new name for an extracted property
 			await test.Catalog.JoinableTaskContext.Factory.SwitchToMainThreadAsync (default);
 			var commandService = test.Catalog.CommandServiceFactory.GetService (ctx.TextView);
-			commandService.Type (typeText);
+
+			foreach(var editorAction in EditorAction.Type (typeText)) {
+				editorAction (commandService);
+				// yield to let things catch up
+				// and so we don't block the UI thread between the commands
+				await Task.Delay (20);
+			}
 
 			Assert.That (
 				ctx.TextBuffer.CurrentSnapshot.GetText (),