bun.sh/test/js/node/cluster.test.ts

import { bunEnv, bunRun, joinP, tempDirWithFiles } from "harness";

test("cloneable and transferable equals", () => {
  const dir = tempDirWithFiles("bun-test", {
    "index.ts": `
import cluster from "cluster";
import { expect } from "bun:test";
if (cluster.isPrimary) {
  cluster.settings.serialization = "advanced";
  const worker = cluster.fork();
  const original = Uint8Array.from([21, 11, 96, 126, 243, 128, 164]);
  const buf = Uint8Array.from([21, 11, 96, 126, 243, 128, 164]);
  const ab = buf.buffer.transfer();
  expect(ab).toBeInstanceOf(ArrayBuffer);
  expect(new Uint8Array(ab)).toEqual(original);
  worker.on("online", function () {
    worker.send(ab);
  });
  worker.on("message", function (data) {
    worker.kill();
    expect(data).toBeInstanceOf(ArrayBuffer);
    expect(new Uint8Array(data)).toEqual(original);
    process.exit(0);
  });
} else {
  process.on("message", msg => {
    console.log("W", msg);
    process.send!(msg);
  });
}
`,
  });
  bunRun(joinP(dir, "index.ts"), bunEnv);
});

test("cloneable and non-transferable not-equals (BunFile)", () => {
  const dir = tempDirWithFiles("bun-test", {
    "index.ts": `
import cluster from "cluster";
import { expect } from "bun:test";
if (cluster.isPrimary) {
  cluster.settings.serialization = "advanced";
  const worker = cluster.fork();
  const file = Bun.file(import.meta.filename);
  console.log("P", "O", file);
  expect(file).toBeInstanceOf(Blob); // Bun.BunFile isnt exposed to JS
  expect(file.name).toEqual(import.meta.filename);
  expect(file.type).toEqual("text/javascript;charset=utf-8");
  worker.on("online", function () {
    worker.send({ file });
  });
  worker.on("message", function (data) {
    worker.kill();
    const { file } = data;
    console.log("P", "M", file);
    expect(file.name).toBeUndefined();
    expect(file.type).toBeUndefined();
    expect(file).toBeEmptyObject();
    process.exit(0);
  });
} else {
  process.on("message", msg => {
    console.log("W", msg);
    process.send!(msg);
  });
}
`,
  });
  bunRun(joinP(dir, "index.ts"), bunEnv);
});

test("cloneable and non-transferable not-equals (net.BlockList)", () => {
  const dir = tempDirWithFiles("bun-test", {
    "index.ts": `
import cluster from "cluster";
import net from "net";
import { expect } from "bun:test";
if (cluster.isPrimary) {
  cluster.settings.serialization = "advanced";
  const worker = cluster.fork();
  const blocklist = new net.BlockList();
  console.log("P", "O", blocklist);
  blocklist.addAddress("123.123.123.123");
  worker.on("online", function () {
    worker.send({ blocklist });
  });
  worker.on("message", function (data) {
    worker.kill();
    const { blocklist } = data;
    console.log("P", "M", blocklist);
    expect(blocklist.rules).toBeUndefined();
    expect(blocklist).toBeEmptyObject();
    process.exit(0);
  });
} else {
  process.on("message", msg => {
    console.log("W", msg);
    process.send!(msg);
  });
}
`,
  });
  bunRun(joinP(dir, "index.ts"), bunEnv);
});