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'use strict'
const { test } = require('tap')
const fs = require('fs')
const proxyquire = require('proxyquire')
const SonicBoom = require('../')
const { file } = require('./helper')
test('write buffers that are not totally written with sync mode', (t) => {
t.plan(9)
const fakeFs = Object.create(fs)
fakeFs.writeSync = function (fd, buf, enc) {
t.pass('fake fs.write called')
fakeFs.writeSync = (fd, buf, enc) => {
t.pass('calling real fs.writeSync, ' + buf)
return fs.writeSync(fd, buf, enc)
}
return 0
}
const SonicBoom = proxyquire('../', {
fs: fakeFs
})
const dest = file()
const fd = fs.openSync(dest, 'w')
const stream = new SonicBoom({ fd, minLength: 0, sync: true })
stream.on('ready', () => {
t.pass('ready emitted')
})
t.ok(stream.write('hello world\n'))
t.ok(stream.write('something else\n'))
stream.end()
stream.on('finish', () => {
fs.readFile(dest, 'utf8', (err, data) => {
t.error(err)
t.equal(data, 'hello world\nsomething else\n')
})
})
stream.on('close', () => {
t.pass('close emitted')
})
})
test('write buffers that are not totally written with flush sync', (t) => {
t.plan(7)
const fakeFs = Object.create(fs)
fakeFs.writeSync = function (fd, buf, enc) {
t.pass('fake fs.write called')
fakeFs.writeSync = fs.writeSync
return 0
}
const SonicBoom = proxyquire('../', {
fs: fakeFs
})
const dest = file()
const fd = fs.openSync(dest, 'w')
const stream = new SonicBoom({ fd, minLength: 100, sync: false })
stream.on('ready', () => {
t.pass('ready emitted')
})
t.ok(stream.write('hello world\n'))
t.ok(stream.write('something else\n'))
stream.flushSync()
stream.on('write', (n) => {
if (n === 0) {
t.fail('throwing to avoid infinite loop')
throw Error('shouldn\'t call write handler after flushing with n === 0')
}
})
stream.end()
stream.on('finish', () => {
fs.readFile(dest, 'utf8', (err, data) => {
t.error(err)
t.equal(data, 'hello world\nsomething else\n')
})
})
stream.on('close', () => {
t.pass('close emitted')
})
})
test('sync writing is fully sync', (t) => {
t.plan(6)
const fakeFs = Object.create(fs)
fakeFs.writeSync = function (fd, buf, enc, cb) {
t.pass('fake fs.write called')
return fs.writeSync(fd, buf, enc)
}
const SonicBoom = proxyquire('../', {
fs: fakeFs
})
const dest = file()
const fd = fs.openSync(dest, 'w')
const stream = new SonicBoom({ fd, minLength: 0, sync: true })
t.ok(stream.write('hello world\n'))
t.ok(stream.write('something else\n'))
// 'drain' will be only emitted once,
// the number of assertions at the top check this.
stream.on('drain', () => {
t.pass('drain emitted')
})
const data = fs.readFileSync(dest, 'utf8')
t.equal(data, 'hello world\nsomething else\n')
})
test('write enormously large buffers sync', (t) => {
t.plan(3)
const dest = file()
const fd = fs.openSync(dest, 'w')
const stream = new SonicBoom({ fd, minLength: 0, sync: true })
const buf = Buffer.alloc(1024).fill('x').toString() // 1 MB
let length = 0
for (let i = 0; i < 1024 * 512; i++) {
length += buf.length
stream.write(buf)
}
stream.end()
stream.on('finish', () => {
fs.stat(dest, (err, stat) => {
t.error(err)
t.equal(stat.size, length)
})
})
stream.on('close', () => {
t.pass('close emitted')
})
})
test('write enormously large buffers sync with utf8 multi-byte split', (t) => {
t.plan(4)
const dest = file()
const fd = fs.openSync(dest, 'w')
const stream = new SonicBoom({ fd, minLength: 0, sync: true })
let buf = Buffer.alloc((1024 * 16) - 2).fill('x') // 16MB - 3B
const length = buf.length + 4
buf = buf.toString() + '🌲' // 16 MB + 1B
stream.write(buf)
stream.end()
stream.on('finish', () => {
fs.stat(dest, (err, stat) => {
t.error(err)
t.equal(stat.size, length)
const char = Buffer.alloc(4)
const fd = fs.openSync(dest, 'r')
fs.readSync(fd, char, 0, 4, length - 4)
t.equal(char.toString(), '🌲')
})
})
stream.on('close', () => {
t.pass('close emitted')
})
})
// for context see this issue https://github.com/pinojs/pino/issues/871
test('file specified by dest path available immediately when options.sync is true', (t) => {
t.plan(3)
const dest = file()
const stream = new SonicBoom({ dest, sync: true })
t.ok(stream.write('hello world\n'))
t.ok(stream.write('something else\n'))
stream.flushSync()
t.pass('file opened and written to without error')
})
test('sync error handling', (t) => {
t.plan(1)
try {
/* eslint no-new: off */
new SonicBoom({ dest: '/path/to/nowwhere', sync: true })
t.fail('must throw synchronously')
} catch (err) {
t.pass('an error happened')
}
})
for (const fd of [1, 2]) {
test(`fd ${fd}`, (t) => {
t.plan(1)
const fakeFs = Object.create(fs)
const SonicBoom = proxyquire('../', {
fs: fakeFs
})
const stream = new SonicBoom({ fd })
fakeFs.close = function (fd, cb) {
t.fail(`should not close fd ${fd}`)
}
stream.end()
stream.on('close', () => {
t.pass('close emitted')
})
})
}
test('._len must always be equal or greater than 0', (t) => {
t.plan(3)
const dest = file()
const fd = fs.openSync(dest, 'w')
const stream = new SonicBoom({ fd, sync: true })
t.ok(stream.write('hello world 👀\n'))
t.ok(stream.write('another line 👀\n'))
t.equal(stream._len, 0)
stream.end()
})
test('._len must always be equal or greater than 0', (t) => {
const n = 20
t.plan(n + 3)
const dest = file()
const fd = fs.openSync(dest, 'w')
const stream = new SonicBoom({ fd, sync: true, minLength: 20 })
let str = ''
for (let i = 0; i < 20; i++) {
t.ok(stream.write('👀'))
str += '👀'
}
t.equal(stream._len, 0)
fs.readFile(dest, 'utf8', (err, data) => {
t.error(err)
t.equal(data, str)
})
})