tinylink/node_modules/thread-stream/test/multibyte-chars.test.mjs

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import { test } from 'node:test'
import assert from 'node:assert'
import { readFile } from 'fs'
import ThreadStream from '../index.js'
import { join } from 'desm'
import { file } from './helper.js'
test('break up utf8 multibyte (sync)', (t, done) => {
const longString = '\u03A3'.repeat(16)
const dest = file()
const stream = new ThreadStream({
bufferSize: 15, // this must be odd
filename: join(import.meta.url, 'to-file.js'),
workerData: { dest },
sync: true
})
stream.on('finish', () => {
readFile(dest, 'utf8', (err, data) => {
assert.ifError(err)
assert.strictEqual(data, longString)
done()
})
})
stream.write(longString)
stream.end()
})
test('break up utf8 multibyte (async)', (t, done) => {
const longString = '\u03A3'.repeat(16)
const dest = file()
const stream = new ThreadStream({
bufferSize: 15, // this must be odd
filename: join(import.meta.url, 'to-file.js'),
workerData: { dest },
sync: false
})
stream.on('finish', () => {
readFile(dest, 'utf8', (err, data) => {
assert.ifError(err)
assert.strictEqual(data, longString)
done()
})
})
stream.write(longString)
stream.end()
})
test('break up utf8 multibyte several times bigger than write buffer', (t, done) => {
const longString = '\u03A3'.repeat(32)
const dest = file()
const stream = new ThreadStream({
bufferSize: 15, // this must be odd
filename: join(import.meta.url, 'to-file.js'),
workerData: { dest },
sync: false
})
stream.on('finish', () => {
readFile(dest, 'utf8', (err, data) => {
assert.ifError(err)
assert.strictEqual(data, longString)
done()
})
})
stream.write(longString)
stream.end()
})