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'use strict'
const crypto = require('node:crypto')
const { join } = require('node:path')
const os = require('node:os')
const { existsSync, readFileSync, statSync, unlinkSync } = require('node:fs')
const writer = require('flush-write-stream')
const split = require('split2')
const pid = process.pid
const hostname = os.hostname()
const { tmpdir } = os
const isWin = process.platform === 'win32'
const isYarnPnp = process.versions.pnp !== undefined
function getPathToNull () {
return isWin ? '\\\\.\\NUL' : '/dev/null'
}
function once (emitter, name) {
return new Promise((resolve, reject) => {
if (name !== 'error') emitter.once('error', reject)
emitter.once(name, (...args) => {
emitter.removeListener('error', reject)
resolve(...args)
})
})
}
function sink (func) {
const result = split((data) => {
try {
return JSON.parse(data)
} catch (err) {
console.log(err)
console.log(data)
}
})
if (func) result.pipe(writer.obj(func))
return result
}
function check (is, chunk, level, msg) {
is(new Date(chunk.time) <= new Date(), true, 'time is greater than Date.now()')
delete chunk.time
is(chunk.pid, pid)
is(chunk.hostname, hostname)
is(chunk.level, level)
is(chunk.msg, msg)
}
function sleep (ms) {
return new Promise((resolve) => {
setTimeout(resolve, ms)
})
}
function watchFileCreated (filename) {
return new Promise((resolve, reject) => {
const TIMEOUT = process.env.PINO_TEST_WAIT_WATCHFILE_TIMEOUT || 10000
const INTERVAL = 100
const threshold = TIMEOUT / INTERVAL
let counter = 0
const interval = setInterval(() => {
const exists = existsSync(filename)
// On some CI runs file is created but not filled
if (exists && statSync(filename).size !== 0) {
clearInterval(interval)
resolve()
} else if (counter <= threshold) {
counter++
} else {
clearInterval(interval)
reject(new Error(
`${filename} hasn't been created within ${TIMEOUT} ms. ` +
(exists ? 'File exist, but still empty.' : 'File not yet created.')
))
}
}, INTERVAL)
})
}
function watchForWrite (filename, testString) {
return new Promise((resolve, reject) => {
const TIMEOUT = process.env.PINO_TEST_WAIT_WRITE_TIMEOUT || 10000
const INTERVAL = 100
const threshold = TIMEOUT / INTERVAL
let counter = 0
const interval = setInterval(() => {
if (readFileSync(filename).includes(testString)) {
clearInterval(interval)
resolve()
} else if (counter <= threshold) {
counter++
} else {
clearInterval(interval)
reject(new Error(`'${testString}' hasn't been written to ${filename} within ${TIMEOUT} ms.`))
}
}, INTERVAL)
})
}
let files = []
function file () {
const hash = crypto.randomBytes(12).toString('hex')
const file = join(tmpdir(), `pino-${pid}-${hash}`)
files.push(file)
return file
}
process.on('beforeExit', () => {
if (files.length === 0) return
for (const file of files) {
try {
unlinkSync(file)
} catch (e) {
}
}
files = []
})
/**
* match is a bare-bones object shape matcher. We should be able to replace
* this with `assert.partialDeepStrictEqual` when v22 is our minimum.
*
* @param {object} found
* @param {object} expected
*/
function match (found, expected) {
for (const [key, value] of Object.entries(expected)) {
if (Object.prototype.toString.call(value) === '[object Object]') {
match(found[key], value)
continue
}
if (value !== found[key]) {
throw Error(`expected "${value}" but found "${found[key]}"`)
}
}
}
module.exports = {
check,
file,
getPathToNull,
isWin,
isYarnPnp,
match,
once,
sink,
sleep,
watchFileCreated,
watchForWrite
}