Add the concurrency option to node tests

packages/typescript/test/async/astnav.test.ts

@@ -24,6 +24,7 @@ import {
     test,
 } from "node:test";
 import { fileURLToPath } from "node:url";
+import { areTestsFiltered } from "../testUtils.ts";
 
 // ---------------------------------------------------------------------------
 // Go JSON baseline format
@@ -76,7 +77,7 @@ const baselineDir = resolve(repoRoot, "tsc/testdata/baselines/reference/astnav")
 // Tests
 // ---------------------------------------------------------------------------
 
-describe("astnav", () => {
+describe("astnav", { concurrency: areTestsFiltered() }, () => {
     let fileText: string;
 
     try {

packages/typescript/test/diagnosticFormatter.test.ts

@@ -9,8 +9,9 @@ import {
     describe,
     test,
 } from "node:test";
+import { areTestsFiltered } from "./testUtils.ts";
 
-describe("diagnosticFormatter", () => {
+describe("diagnosticFormatter", { concurrency: areTestsFiltered() }, () => {
     test("formats diagnostics with a configured program host", async () => {
         const source = `const x: number = "oops";\n`;
         const api = spawnAPI({

packages/typescript/test/encoder.test.ts

@@ -47,6 +47,9 @@ import {
     NODE_OFFSET_DATA,
 } from "../src/api/node/protocol.ts";
 import { Wtf8Decoder } from "../src/api/node/wtf8.ts";
+import { areTestsFiltered } from "./testUtils.ts";
+
+const concurrency = areTestsFiltered();
 
 function makeSF(text: string, fileName: string, statements: readonly Statement[]): SourceFile {
     const endOfFileToken = createToken(SyntaxKind.EndOfFile);
@@ -57,7 +60,7 @@ function decode(data: Uint8Array): RemoteSourceFile {
     return new RemoteSourceFile(data, new Wtf8Decoder());
 }
 
-describe("Encoder", () => {
+describe("Encoder", { concurrency }, () => {
     test("encodes empty source file", () => {
         const sf = makeSF("", "/test.ts", []);
 
@@ -348,7 +351,7 @@ describe("Encoder", () => {
     });
 });
 
-describe("UTF-8 vs UTF-16 position encoding", () => {
+describe("UTF-8 vs UTF-16 position encoding", { concurrency }, () => {
     // Positions in the encoded AST must be UTF-16 code unit offsets so that
     // file.text.slice(node.pos, node.end) works correctly on JS strings.
     // This is the same convention TypeScript uses.
@@ -409,7 +412,7 @@ describe("UTF-8 vs UTF-16 position encoding", () => {
     });
 });
 
-describe("Line and character mapping", () => {
+describe("Line and character mapping", { concurrency }, () => {
     function makeSourceFile(text: string): RemoteSourceFile {
         return decode(encodeSourceFile(makeSF(text, "/test.ts", [])));
     }

packages/typescript/test/spanMap.test.ts

@@ -9,8 +9,9 @@ import {
     describe,
     test,
 } from "node:test";
+import { areTestsFiltered } from "./testUtils.ts";
 
-describe("SpanMap", () => {
+describe("SpanMap", { concurrency: areTestsFiltered() }, () => {
     const map = new SpanMap([
         { virtualStart: 2, virtualEnd: 6, originalStart: 10, originalEnd: 14, kind: SpanMapKind.Verbatim },
         { virtualStart: 8, virtualEnd: 11, originalStart: 20, originalEnd: 27, kind: SpanMapKind.Atom },

packages/typescript/test/sync/api-generators.test.ts

@@ -67,6 +67,7 @@ import {
     type APIRequestGenerator,
     executeRequestGenerators,
 } from "../../src/api/sync/generatorSupport.ts";
+import { areTestsFiltered } from "../testUtils.ts";
 import { spawnAPI } from "./api.testUtils.ts";
 
 const parityFiles = {
@@ -415,7 +416,7 @@ function assertPublicGeneratorCoverage(owners: readonly { readonly name: string;
     assert.deepEqual(missing, [], `Uncovered public generator getters: ${missing.join(", ")}`);
 }
 
-describe("API - generator batching", () => {
+describe("API - generator batching", { concurrency: areTestsFiltered() }, () => {
     test("batches source file requests", context => {
         const api = spawnAPI(parityFiles);
         context.after(() => api.close());