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// Copyright 2018-2023 the Deno authors. All rights reserved. MIT license.import { assert, assertEquals, assertObjectMatch } from "../testing/asserts.ts";import { fromFileUrl, relative } from "../path/mod.ts";import { EventEmitter, once } from "./events.ts";import * as workerThreads from "./worker_threads.ts";
Deno.test({  name: "[worker_threads] isMainThread",  fn() {    assertEquals(workerThreads.isMainThread, true);  },});
Deno.test({  name: "[worker_threads] threadId",  fn() {    assertEquals(workerThreads.threadId, 0);  },});
Deno.test({  name: "[worker_threads] resourceLimits",  fn() {    assertObjectMatch(workerThreads.resourceLimits, {});  },});
Deno.test({  name: "[worker_threads] parentPort",  fn() {    assertEquals(workerThreads.parentPort, null);  },});
Deno.test({  name: "[worker_threads] workerData",  fn() {    assertEquals(workerThreads.workerData, null);  },});
Deno.test({  name: "[worker_threads] setEnvironmentData / getEnvironmentData",  fn() {    workerThreads.setEnvironmentData("test", "test");    assertEquals(workerThreads.getEnvironmentData("test"), "test");    // delete    workerThreads.setEnvironmentData("test");    assertEquals(workerThreads.getEnvironmentData("test"), undefined);  },});
Deno.test({  name: "[worker_threads] Worker threadId",  async fn() {    const worker = new workerThreads.Worker(      new URL("./testdata/worker_threads.ts", import.meta.url),    );    worker.postMessage("Hello, how are you my thread?");    await once(worker, "message");    assertEquals((await once(worker, "message"))[0].threadId, 1);    worker.terminate();
    const worker1 = new workerThreads.Worker(      new URL("./testdata/worker_threads.ts", import.meta.url),    );    worker1.postMessage("Hello, how are you my thread?");    await once(worker1, "message");    assertEquals((await once(worker1, "message"))[0].threadId, 2);    worker1.terminate();  },});
Deno.test({  name: "[worker_threads] Worker basics",  async fn() {    workerThreads.setEnvironmentData("test", "test");    workerThreads.setEnvironmentData(1, {      test: "random",      random: "test",    });    const { port1 } = new MessageChannel();    const worker = new workerThreads.Worker(      new URL("./testdata/worker_threads.ts", import.meta.url),      {        workerData: ["hey", true, false, 2, port1],        transferList: [port1],      },    );    worker.postMessage("Hello, how are you my thread?");    assertEquals((await once(worker, "message"))[0], "I'm fine!");    const data = (await once(worker, "message"))[0];    // data.threadId can be 1 when this test is runned individually    if (data.threadId === 1) data.threadId = 3;    assertObjectMatch(data, {      isMainThread: false,      threadId: 3,      workerData: ["hey", true, false, 2],      envData: ["test", { test: "random", random: "test" }],    });    worker.terminate();  },  sanitizeResources: false,});
const workerThreadsURL = JSON.stringify(  new URL("./worker_threads.ts", import.meta.url).toString(),);
Deno.test({  name: "[worker_threads] Worker eval",  async fn() {    const worker = new workerThreads.Worker(      `      import { parentPort } from ${workerThreadsURL};      parentPort.postMessage("It works!");      `,      {        eval: true,      },    );    assertEquals((await once(worker, "message"))[0], "It works!");    worker.terminate();  },});
Deno.test({  name: "[worker_threads] inheritences",  async fn() {    const eventsURL = JSON.stringify(      new URL("./events.ts", import.meta.url).toString(),    );
    const worker = new workerThreads.Worker(      `      import { EventEmitter } from ${eventsURL};      import { parentPort } from ${workerThreadsURL};      parentPort.postMessage(parentPort instanceof EventTarget);      parentPort.postMessage(parentPort instanceof EventEmitter);      `,      {        eval: true,      },    );    assertEquals((await once(worker, "message"))[0], true);    assertEquals((await once(worker, "message"))[0], false);    assert(worker instanceof EventEmitter);    assert(!(worker instanceof EventTarget));    worker.terminate();  },});
Deno.test({  name: "[worker_threads] Worker workerData",  async fn() {    const worker = new workerThreads.Worker(      new URL("./testdata/worker_threads.ts", import.meta.url),      {        workerData: null,      },    );    worker.postMessage("Hello, how are you my thread?");    await once(worker, "message");    assertEquals((await once(worker, "message"))[0].workerData, null);    worker.terminate();
    const worker1 = new workerThreads.Worker(      new URL("./testdata/worker_threads.ts", import.meta.url),    );    worker1.postMessage("Hello, how are you my thread?");    await once(worker1, "message");    assertEquals((await once(worker1, "message"))[0].workerData, undefined);    worker1.terminate();  },});
Deno.test({  name: "[worker_threads] Worker with relative path",  async fn() {    const worker = new workerThreads.Worker(relative(      Deno.cwd(),      fromFileUrl(new URL("./testdata/worker_threads.ts", import.meta.url)),    ));    worker.postMessage("Hello, how are you my thread?");    assertEquals((await once(worker, "message"))[0], "I'm fine!");    worker.terminate();  },});