Marc Mintel
5397309103
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44 lines
1.2 KiB
Plaintext
44 lines
1.2 KiB
Plaintext
'use strict'
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const { test } = require('tap')
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const { join } = require('node:path')
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const { createReadStream } = require('node:fs')
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const { promisify } = require('node:util')
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const execa = require('execa')
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const split = require('split2')
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const stream = require('node:stream')
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const { file } = require('../helper')
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const pipeline = promisify(stream.pipeline)
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const { Writable } = stream
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const sleep = promisify(setTimeout)
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const skip = process.env.CI || process.env.CITGM
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test('eight million lines', { skip }, async ({ equal, comment }) => {
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const destination = file()
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await execa(process.argv[0], [join(__dirname, '..', 'fixtures', 'transport-many-lines.js'), destination])
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if (process.platform !== 'win32') {
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try {
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await execa('sync') // Wait for the file to be written to disk
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} catch {
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// Just a fallback, this should be unreachable
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}
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}
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await sleep(1000) // It seems that sync is not enough (even in POSIX systems)
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const toWrite = 8 * 1000000
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let count = 0
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await pipeline(createReadStream(destination), split(), new Writable({
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write (chunk, enc, cb) {
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if (count % (toWrite / 10) === 0) {
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comment(`read ${count}`)
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}
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count++
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cb()
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}
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}))
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equal(count, toWrite)
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})
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