Add E2E tests for powerShell/getModule request

Author: Copilot

test/PowerShellEditorServices.Test.E2E/LanguageServerProtocolMessageTests.cs

@@ -1274,6 +1274,40 @@ await PsesLanguageClient
             Assert.Equal("Get-ChildItem", expandAliasResult.Text);
         }
 
+        [Fact]
+        public async Task CanSendGetModuleRequestAsync()
+        {
+            PSModuleMessage module =
+                await PsesLanguageClient
+                    .SendRequest(
+                        "powerShell/getModule",
+                        new GetModuleParams
+                        {
+                            Name = "Microsoft.PowerShell.Management"
+                        })
+                    .Returning<PSModuleMessage>(CancellationToken.None);
+
+            Assert.NotNull(module);
+            Assert.Equal("Microsoft.PowerShell.Management", module.Name);
+            Assert.NotEmpty(module.Version);
+        }
+
+        [Fact]
+        public async Task CanSendGetModuleRequestForMissingModuleAsync()
+        {
+            PSModuleMessage module =
+                await PsesLanguageClient
+                    .SendRequest(
+                        "powerShell/getModule",
+                        new GetModuleParams
+                        {
+                            Name = "ThisModuleDoesNotExist-" + Guid.NewGuid().ToString("N")
+                        })
+                    .Returning<PSModuleMessage>(CancellationToken.None);
+
+            Assert.Null(module);
+        }
+
         [Fact]
         public async Task CanSendSemanticTokenRequestAsync()
         {