/
multi-param.test.js
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/
multi-param.test.js
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'use strict'
/* eslint-env mocha */
const assert = require('assert')
const path = require('path')
const crypto = require('crypto')
const os = require('os')
const fs = require('../..')
const SIZE = 1000
describe('fs.read()', () => {
let TEST_FILE
let TEST_DATA
let TEST_FD
beforeEach(() => {
TEST_FILE = path.join(os.tmpdir(), 'fs-extra', 'read-test-file')
TEST_DATA = crypto.randomBytes(SIZE)
fs.writeFileSync(TEST_FILE, TEST_DATA)
TEST_FD = fs.openSync(TEST_FILE, 'r')
})
afterEach(() => {
return fs.close(TEST_FD)
.then(() => fs.remove(TEST_FILE))
})
describe('with promises', () => {
it('returns an object', () => {
return fs.read(TEST_FD, Buffer.alloc(SIZE), 0, SIZE, 0)
.then(results => {
const bytesRead = results.bytesRead
const buffer = results.buffer
assert.strictEqual(bytesRead, SIZE, 'bytesRead is correct')
assert(buffer.equals(TEST_DATA), 'data is correct')
})
})
it('returns an object when position is not set', () => {
return fs.read(TEST_FD, Buffer.alloc(SIZE), 0, SIZE)
.then(results => {
const bytesRead = results.bytesRead
const buffer = results.buffer
assert.strictEqual(bytesRead, SIZE, 'bytesRead is correct')
assert(buffer.equals(TEST_DATA), 'data is correct')
})
})
})
describe('with callbacks', () => {
it('works', done => {
fs.read(TEST_FD, Buffer.alloc(SIZE), 0, SIZE, 0, (err, bytesRead, buffer) => {
assert.ifError(err)
assert.strictEqual(bytesRead, SIZE, 'bytesRead is correct')
assert(buffer.equals(TEST_DATA), 'data is correct')
done()
})
})
it('works when position is null', done => {
fs.read(TEST_FD, Buffer.alloc(SIZE), 0, SIZE, null, (err, bytesRead, buffer) => {
assert.ifError(err)
assert.strictEqual(bytesRead, SIZE, 'bytesRead is correct')
assert(buffer.equals(TEST_DATA), 'data is correct')
done()
})
})
})
})
describe('fs.write()', () => {
let TEST_FILE
let TEST_DATA
let TEST_FD
beforeEach(() => {
TEST_FILE = path.join(os.tmpdir(), 'fs-extra', 'write-test-file')
TEST_DATA = crypto.randomBytes(SIZE)
fs.ensureDirSync(path.dirname(TEST_FILE))
TEST_FD = fs.openSync(TEST_FILE, 'w')
})
afterEach(() => {
return fs.close(TEST_FD)
.then(() => fs.remove(TEST_FILE))
})
describe('with promises', () => {
it('returns an object', () => {
return fs.write(TEST_FD, TEST_DATA, 0, SIZE, 0)
.then(results => {
const bytesWritten = results.bytesWritten
const buffer = results.buffer
assert.strictEqual(bytesWritten, SIZE, 'bytesWritten is correct')
assert(buffer.equals(TEST_DATA), 'data is correct')
})
})
it('returns an object when minimal arguments are passed', () => {
return fs.write(TEST_FD, TEST_DATA)
.then(results => {
const bytesWritten = results.bytesWritten
const buffer = results.buffer
assert.strictEqual(bytesWritten, SIZE, 'bytesWritten is correct')
assert(buffer.equals(TEST_DATA), 'data is correct')
})
})
it('returns an object when writing a string', () => {
const message = 'Hello World!'
return fs.write(TEST_FD, message)
.then(results => {
const bytesWritten = results.bytesWritten
const buffer = results.buffer
assert.strictEqual(bytesWritten, message.length, 'bytesWritten is correct')
assert.strictEqual(buffer, message, 'data is correct')
})
})
})
describe('with callbacks', () => {
it('works', done => {
fs.write(TEST_FD, TEST_DATA, 0, SIZE, 0, (err, bytesWritten, buffer) => {
assert.ifError(err)
assert.strictEqual(bytesWritten, SIZE, 'bytesWritten is correct')
assert(buffer.equals(TEST_DATA), 'data is correct')
done()
})
})
it('works when minimal arguments are passed', done => {
fs.write(TEST_FD, TEST_DATA, (err, bytesWritten, buffer) => {
assert.ifError(err)
assert.strictEqual(bytesWritten, SIZE, 'bytesWritten is correct')
assert(buffer.equals(TEST_DATA), 'data is correct')
done()
})
})
it('works when writing a string', done => {
const message = 'Hello World!'
return fs.write(TEST_FD, message, (err, bytesWritten, buffer) => {
assert.ifError(err)
assert.strictEqual(bytesWritten, message.length, 'bytesWritten is correct')
assert.strictEqual(buffer, message, 'data is correct')
done()
})
})
})
})
describe('fs.writev()', () => {
let TEST_FILE
let TEST_DATA
let TEST_FD
beforeEach(() => {
TEST_FILE = path.join(os.tmpdir(), 'fs-extra', 'writev-test-file')
TEST_DATA = [crypto.randomBytes(SIZE / 2), crypto.randomBytes(SIZE / 2)]
fs.ensureDirSync(path.dirname(TEST_FILE))
TEST_FD = fs.openSync(TEST_FILE, 'w')
})
afterEach(() => {
return fs.close(TEST_FD)
.then(() => fs.remove(TEST_FILE))
})
describe('with promises', () => {
it('returns an object', () => {
return fs.writev(TEST_FD, TEST_DATA, 0)
.then(({ bytesWritten, buffers }) => {
assert.strictEqual(bytesWritten, SIZE, 'bytesWritten is correct')
assert.deepStrictEqual(buffers, TEST_DATA, 'data is correct')
})
})
it('returns an object when minimal arguments are passed', () => {
return fs.writev(TEST_FD, TEST_DATA)
.then(({ bytesWritten, buffers }) => {
assert.strictEqual(bytesWritten, SIZE, 'bytesWritten is correct')
assert.deepStrictEqual(buffers, TEST_DATA, 'data is correct')
})
})
})
describe('with callbacks', () => {
it('works', done => {
fs.writev(TEST_FD, TEST_DATA, 0, (err, bytesWritten, buffers) => {
assert.ifError(err)
assert.strictEqual(bytesWritten, SIZE, 'bytesWritten is correct')
assert.deepStrictEqual(buffers, TEST_DATA, 'data is correct')
done()
})
})
it('works when minimal arguments are passed', done => {
fs.writev(TEST_FD, TEST_DATA, (err, bytesWritten, buffers) => {
assert.ifError(err)
assert.strictEqual(bytesWritten, SIZE, 'bytesWritten is correct')
assert.deepStrictEqual(buffers, TEST_DATA, 'data is correct')
done()
})
})
})
})