WIKIPEDIA end.test.js

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'use strict'

const { test } = require('tap')
const { join } = require('path')
const { readFile } = require('fs')
const { file } = require('./helper')
const ThreadStream = require('..')

test('destroy support', function (t) {
  t.plan(7)

const dest = file()
  const stream = new ThreadStream({
    filename: join(__dirname, 'to-file-on-destroy.js'),
    workerData: { dest },
    sync: true
  })

stream.on('close', () => {
    t.notOk(stream.writable)
    t.pass('close emitted')
  })

t.ok(stream.write('hello world\n'))
  t.ok(stream.write('something else\n'))
  t.ok(stream.writable)

stream.end()

readFile(dest, 'utf8', (err, data) => {
    t.error(err)
    t.equal(data, 'hello world\nsomething else\n')
  })
})

test('synchronous _final support', function (t) {
  t.plan(7)

const dest = file()
  const stream = new ThreadStream({
    filename: join(__dirname, 'to-file-on-final.js'),
    workerData: { dest },
    sync: true
  })

stream.on('close', () => {
    t.notOk(stream.writable)
    t.pass('close emitted')
  })

t.ok(stream.write('hello world\n'))
  t.ok(stream.write('something else\n'))
  t.ok(stream.writable)

stream.end()

readFile(dest, 'utf8', (err, data) => {
    t.error(err)
    t.equal(data, 'hello world\nsomething else\n')
  })
})