Rewrite flaky test to use Get-Date instead of Expand-Archive

Author: JustinGrote

test/PowerShellEditorServices.Test.E2E/LanguageServerProtocolMessageTests.cs

@@ -1057,8 +1057,6 @@ public async Task CanSendCompletionAndCompletionResolveRequestAsync()
             Assert.Contains("Writes customized output to a host", updatedCompletionItem.Documentation.String);
         }
 
-
-        // [SkippableFact(Skip = "Completion for Expand-SlowArchive is flaky.")]
         [Fact]
         public async Task CanSendCompletionResolveWithModulePrefixRequestAsync()
         {
@@ -1067,11 +1065,11 @@ await PsesLanguageClient
                     "evaluate",
                     new EvaluateRequestArguments
                     {
-                        Expression = "Import-Module Microsoft.PowerShell.Archive -Prefix Slow"
+                        Expression = "Import-Module Microsoft.PowerShell.Utility -Prefix Test"
                     })
                 .ReturningVoid(CancellationToken.None);
 
-            string filePath = NewTestFile("Expand-SlowArch");
+            string filePath = NewTestFile("Get-TestDate");
 
             CompletionList completionItems = await PsesLanguageClient.TextDocument.RequestCompletion(
                 new CompletionParams
@@ -1080,15 +1078,15 @@ await PsesLanguageClient
                     {
                         Uri = DocumentUri.FromFileSystemPath(filePath)
                     },
-                    Position = new Position(line: 0, character: 15)
+                    Position = new Position(line: 0, character: 12)
                 });
 
             CompletionItem completionItem = Assert.Single(completionItems,
-                completionItem1 => completionItem1.Label == "Expand-SlowArchive");
+                completionItem1 => completionItem1.Label == "Get-TestDate");
 
             CompletionItem updatedCompletionItem = await PsesLanguageClient.ResolveCompletion(completionItem);
 
-            Assert.Contains("Extracts files from a specified archive", updatedCompletionItem.Documentation.String);
+            Assert.Contains("Gets the current date and time.", updatedCompletionItem.Documentation.String);
         }
 
         [SkippableFact]