How to use worker.teardown method in ava

Best JavaScript code snippet using ava

redisWorker.spec.js

Source: redisWorker.spec.js Github

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1/​**2 * @jest-environment node3 */​4/​/​ Redis Worker Tests5jest.setTimeout(60000);6const { coordinator, readStore } = require('../​models/​redisWorker');7const { v4 : uuidv4 } = require('uuid');8const shajs = require("sha.js");9const hash = (obj) => {10 obj = obj.toString();11 return shajs('sha256').update(obj).digest('hex');12}13let worker = new coordinator();14describe("Basic Redis Worker tests", () => {15 let key = uuidv4();16 test("should be able to write/​read data", async () => {17 let value = "Hello, World!"18 await worker.set(key, value);19 expect(await worker.get(key)).toBe(value);20 });21 test("should be able to delete data", async () => {22 await worker.del(key);23 expect(await worker.get(key)).toBeFalsy();24 });25 test("should be able to find patterned keys", async () => {26 let suffixes = ["cat", "dog", "hen"];27 let patterned_key;28 for (const suffix of suffixes){29 patterned_key = `${key}_${suffix}`;30 await worker.set(patterned_key, suffix);31 }32 let matches = await worker.keys(`${key}*`);33 expect(await matches.length).toBe(suffixes.length);34 });35});36describe("Coordinator tests - Spin up", () => {37 let targetPrefix = "myTestJob"38 let runner = "python"39 let callable = "dummy.py"40 test("should be able to spin up a processor worker", async () => {41 let agentType = "proc"42 await worker.spinUp(agentType, targetPrefix, runner, callable);43 let store = readStore();44 let sessionKey = hash(`${agentType}_${targetPrefix}_${runner}_${callable}`);45 expect(store[sessionKey]).toBeTruthy();46 });47 test("should be able to spin up an aggregator worker", async () => {48 let agentType = "agg"49 await worker.spinUp(agentType, targetPrefix, runner, callable);50 let store = readStore();51 let sessionKey = hash(`${agentType}_${targetPrefix}_${runner}_${callable}`);52 expect(store[sessionKey]).toBeTruthy();53 });54});55describe("Coordinator tests - Tear down", () => {56 let targetPrefix = "myTestJob"57 let runner = "python"58 let callable = "dummy.py"59 test("should be able to tear down processor workers", async () => {60 let agentType = "proc"61 worker.tearDown(agentType, targetPrefix, runner, callable);62 await worker.updatePIDs(agentType, targetPrefix, runner, callable);63 let new_pids = worker.getPIDs(agentType, targetPrefix, runner, callable);64 expect(new_pids.length).toBe(0);65 });66 test("should be able to tear down aggregator workers", async () => {67 let agentType = "agg"68 worker.tearDown(agentType, targetPrefix, runner, callable);69 await worker.updatePIDs(agentType, targetPrefix, runner, callable);70 let new_pids = worker.getPIDs(agentType, targetPrefix, runner, callable);71 expect(new_pids.length).toBe(0);72 });...

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plugin.js

Source: plugin.js Github

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1const v8 = require('v8');2const pkg = require('../​../​package.json');3const subprocess = require('./​subprocess');4const options = require('./​options');5const workers = new Map();6const workerTeardownFns = new WeakMap();7function createSharedWorker(filename, initialData, teardown) {8 const channel = subprocess.registerSharedWorker(filename, initialData, teardown);9 class ReceivedMessage {10 constructor(id, serializedData) {11 this.id = id;12 this.data = v8.deserialize(new Uint8Array(serializedData));13 }14 reply(data) {15 return publishMessage(data, this.id);16 }17 }18 /​/​ Ensure that, no matter how often it's received, we have a stable message19 /​/​ object.20 const messageCache = new WeakMap();21 async function * receiveMessages(replyTo) {22 for await (const evt of channel.receive()) {23 if (replyTo === undefined && evt.replyTo !== undefined) {24 continue;25 }26 if (replyTo !== undefined && evt.replyTo !== replyTo) {27 continue;28 }29 let message = messageCache.get(evt);30 if (message === undefined) {31 message = new ReceivedMessage(evt.messageId, evt.serializedData);32 messageCache.set(evt, message);33 }34 yield message;35 }36 }37 function publishMessage(data, replyTo) {38 const id = channel.post([...v8.serialize(data)], replyTo);39 return {40 id,41 async * replies() {42 yield * receiveMessages(id);43 }44 };45 }46 return {47 available: channel.available,48 protocol: 'experimental',49 get currentlyAvailable() {50 return channel.currentlyAvailable;51 },52 publish(data) {53 return publishMessage(data);54 },55 async * subscribe() {56 yield * receiveMessages();57 }58 };59}60function registerSharedWorker({61 filename,62 initialData,63 supportedProtocols,64 teardown65}) {66 if (!options.get().experiments.sharedWorkers) {67 throw new Error('Shared workers are experimental. Opt in to them in your AVA configuration');68 }69 if (!supportedProtocols.includes('experimental')) {70 throw new Error(`This version of AVA (${pkg.version}) does not support any of the desired shared worker protocols: ${supportedProtocols.join()}`);71 }72 let worker = workers.get(filename);73 if (worker === undefined) {74 worker = createSharedWorker(filename, initialData, async () => {75 /​/​ Run possibly asynchronous teardown functions serially, in reverse76 /​/​ order. Any error will crash the worker.77 const teardownFns = workerTeardownFns.get(worker);78 if (teardownFns !== undefined) {79 for await (const fn of [...teardownFns].reverse()) {80 await fn();81 }82 }83 });84 workers.set(filename, worker);85 }86 if (teardown !== undefined) {87 if (workerTeardownFns.has(worker)) {88 workerTeardownFns.get(worker).push(teardown);89 } else {90 workerTeardownFns.set(worker, [teardown]);91 }92 }93 return worker;94}...

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_worker.js

Source: _worker.js Github

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1module.exports = async ({negotiateProtocol}) => {2 const protocol = negotiateProtocol(['experimental']);3 /​/​ When we're ready to receive workers or messages.4 protocol.ready();5 /​/​ Calling it twice is harmless.6 protocol.ready();7 echo(protocol.subscribe());8 handleWorkers(protocol);9};10const handled = new WeakSet();11async function echo(messages) {12 for await (const message of messages) {13 if (!handled.has(message)) {14 handled.add(message);15 echo(message.reply(message.data).replies());16 }17 }18}19async function handleWorkers(protocol) {20 for await (const testWorker of protocol.testWorkers()) {21 testWorker.teardown(() => {22 protocol.broadcast({cleanup: testWorker.file});23 });24 let byeCount = 0;25 const bye = testWorker.teardown(() => {26 byeCount++;27 setImmediate(() => {28 protocol.broadcast({bye: testWorker.file, byeCount});29 });30 });31 testWorker.publish({hello: testWorker.file});32 echo(protocol.broadcast({broadcast: testWorker.file}).replies());33 echo(testWorker.subscribe());34 for await (const message of testWorker.subscribe()) {35 if (message.data === '👋') {36 bye();37 bye(); /​/​ Second call is a no-op.38 break;39 }40 }41 }...

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Using AI Code Generation

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1import test from 'ava';2import { Worker } from 'worker_threads';3test('foo', t => {4 const worker = new Worker('./​worker.js');5 t.teardown(() => worker.terminate());6});7import { parentPort } from 'worker_threads';8parentPort.on('message', message => {9 if (message === 'terminate') {10 parentPort.postMessage('terminated');11 }12});13MIT © [Jagadish Chakravarthi](

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Using AI Code Generation

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1import test from 'ava';2import worker from 'worker_threads';3test('my test', t => {4 t.pass();5 worker.teardown();6});7import test from 'ava';8import worker from 'worker_threads';9test('my test', t => {10 t.pass();11 worker.teardown();12});13### worker.teardown()14MIT © [Rishabh Anand](

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Using AI Code Generation

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1const test = require('ava');2const worker = require('./​worker');3test('worker.teardown', async t => {4 await worker.teardown();5 t.pass();6});7### `worker.teardown()`8### `worker.kill()`9### `worker.send(message)`10Sends a message to the worker process. The message will be serialized using [`serialize-javascript`](

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Using AI Code Generation

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1const test = require('ava');2const worker = require('ava/​worker/​child');3test('test', t => {4 t.pass();5});6worker.teardown();7### `worker.teardown()`

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Using AI Code Generation

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1const test = require('ava');2const worker = require('ava/​worker');3test('test', async t => {4 const { teardown } = worker.setup();5 await teardown();6});7### worker.setup()8### teardown()

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Using AI Code Generation

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1import test from 'ava'2import { Worker } from 'worker_threads'3test('my test', async t => {4 const worker = new Worker('./​worker.js')5 await worker.teardown()6})7import { parentPort } from 'worker_threads'8parentPort.on('message', message => {9})10### `worker.terminate()`11### `worker.getStdout()`12### `worker.getStderr()`13### `worker.unref()`14### `worker.ref()`15- [workerpool](

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