Make CommandTypes a const enum and use allCommandTypes for unit test

Author: Andy Hanson

Diff for: src/harness/unittests/session.ts

@@ -172,12 +172,81 @@ namespace ts.server {
         });
 
         describe("onMessage", () => {
+            const allCommandNames: CommandNames[] = [
+                CommandNames.Brace,
+                CommandNames.BraceFull,
+                CommandNames.BraceCompletion,
+                CommandNames.Change,
+                CommandNames.Close,
+                CommandNames.Completions,
+                CommandNames.CompletionsFull,
+                CommandNames.CompletionDetails,
+                CommandNames.CompileOnSaveAffectedFileList,
+                CommandNames.Configure,
+                CommandNames.Definition,
+                CommandNames.DefinitionFull,
+                CommandNames.Implementation,
+                CommandNames.ImplementationFull,
+                CommandNames.Exit,
+                CommandNames.Format,
+                CommandNames.Formatonkey,
+                CommandNames.FormatFull,
+                CommandNames.FormatonkeyFull,
+                CommandNames.FormatRangeFull,
+                CommandNames.Geterr,
+                CommandNames.GeterrForProject,
+                CommandNames.SemanticDiagnosticsSync,
+                CommandNames.SyntacticDiagnosticsSync,
+                CommandNames.NavBar,
+                CommandNames.NavBarFull,
+                CommandNames.Navto,
+                CommandNames.NavtoFull,
+                CommandNames.NavTree,
+                CommandNames.NavTreeFull,
+                CommandNames.Occurrences,
+                CommandNames.DocumentHighlights,
+                CommandNames.DocumentHighlightsFull,
+                CommandNames.Open,
+                CommandNames.Quickinfo,
+                CommandNames.QuickinfoFull,
+                CommandNames.References,
+                CommandNames.ReferencesFull,
+                CommandNames.Reload,
+                CommandNames.Rename,
+                CommandNames.RenameInfoFull,
+                CommandNames.RenameLocationsFull,
+                CommandNames.Saveto,
+                CommandNames.SignatureHelp,
+                CommandNames.SignatureHelpFull,
+                CommandNames.TypeDefinition,
+                CommandNames.ProjectInfo,
+                CommandNames.ReloadProjects,
+                CommandNames.Unknown,
+                CommandNames.OpenExternalProject,
+                CommandNames.CloseExternalProject,
+                CommandNames.SynchronizeProjectList,
+                CommandNames.ApplyChangedToOpenFiles,
+                CommandNames.EncodedSemanticClassificationsFull,
+                CommandNames.Cleanup,
+                CommandNames.OutliningSpans,
+                CommandNames.TodoComments,
+                CommandNames.Indentation,
+                CommandNames.DocCommentTemplate,
+                CommandNames.CompilerOptionsDiagnosticsFull,
+                CommandNames.NameOrDottedNameSpan,
+                CommandNames.BreakpointStatement,
+                CommandNames.CompilerOptionsForInferredProjects,
+                CommandNames.GetCodeFixes,
+                CommandNames.GetCodeFixesFull,
+                CommandNames.GetSupportedCodeFixes,
+                CommandNames.GetApplicableRefactors,
+                CommandNames.GetRefactorCodeActions,
+                CommandNames.GetRefactorCodeActionsFull,
+            ];
+
             it("should not throw when commands are executed with invalid arguments", () => {
                 let i = 0;
-                for (const name in CommandNames) {
-                    if (!Object.prototype.hasOwnProperty.call(CommandNames, name)) {
-                        continue;
-                    }
+                for (const name of allCommandNames) {
                     const req: protocol.Request = {
                         command: name,
                         seq: i,

Diff for: src/server/protocol.ts

@@ -2,7 +2,8 @@
  * Declaration module describing the TypeScript Server protocol
  */
 namespace ts.server.protocol {
-    export enum CommandTypes {
+    // NOTE: If updating this, be sure to also update `allCommandNames` in `harness/unittests/session.ts`.
+    export const enum CommandTypes {
         Brace = "brace",
         /* @internal */
         BraceFull = "brace-full",