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212 lines
5.2 KiB
JavaScript
212 lines
5.2 KiB
JavaScript
// deno-fmt-ignore-file
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// deno-lint-ignore-file
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// Copyright Joyent and Node contributors. All rights reserved. MIT license.
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// Taken from Node 18.12.1
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// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.
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'use strict';
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const common = require('../common');
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const assert = require('assert');
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const fs = require('fs');
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const fixtures = require('../common/fixtures');
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const fn = fixtures.path('elipses.txt');
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const rangeFile = fixtures.path('x.txt');
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{
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let paused = false;
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const file = fs.ReadStream(fn);
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file.on('open', common.mustCall(function(fd) {
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file.length = 0;
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assert.strictEqual(typeof fd, 'number');
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assert.ok(file.readable);
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// GH-535
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file.pause();
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file.resume();
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file.pause();
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file.resume();
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}));
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file.on('data', common.mustCallAtLeast(function(data) {
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assert.ok(data instanceof Buffer);
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assert.ok(!paused);
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file.length += data.length;
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paused = true;
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file.pause();
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setTimeout(function() {
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paused = false;
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file.resume();
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}, 10);
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}));
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file.on('end', common.mustCall());
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file.on('close', common.mustCall(function() {
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assert.strictEqual(file.length, 30000);
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}));
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}
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{
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const file = fs.createReadStream(fn, Object.create({ encoding: 'utf8' }));
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file.length = 0;
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file.on('data', function(data) {
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assert.strictEqual(typeof data, 'string');
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file.length += data.length;
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for (let i = 0; i < data.length; i++) {
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// http://www.fileformat.info/info/unicode/char/2026/index.htm
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assert.strictEqual(data[i], '\u2026');
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}
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});
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file.on('close', common.mustCall(function() {
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assert.strictEqual(file.length, 10000);
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}));
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}
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{
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const options = Object.create({ bufferSize: 1, start: 1, end: 2 });
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const file = fs.createReadStream(rangeFile, options);
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assert.strictEqual(file.start, 1);
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assert.strictEqual(file.end, 2);
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let contentRead = '';
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file.on('data', function(data) {
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contentRead += data.toString('utf-8');
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});
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file.on('end', common.mustCall(function() {
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assert.strictEqual(contentRead, 'yz');
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}));
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}
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{
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const options = Object.create({ bufferSize: 1, start: 1 });
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const file = fs.createReadStream(rangeFile, options);
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assert.strictEqual(file.start, 1);
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file.data = '';
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file.on('data', function(data) {
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file.data += data.toString('utf-8');
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});
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file.on('end', common.mustCall(function() {
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assert.strictEqual(file.data, 'yz\n');
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}));
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}
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// https://github.com/joyent/node/issues/2320
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{
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const options = Object.create({ bufferSize: 1.23, start: 1 });
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const file = fs.createReadStream(rangeFile, options);
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assert.strictEqual(file.start, 1);
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file.data = '';
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file.on('data', function(data) {
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file.data += data.toString('utf-8');
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});
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file.on('end', common.mustCall(function() {
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assert.strictEqual(file.data, 'yz\n');
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}));
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}
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{
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const message =
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'The value of "start" is out of range. It must be <= "end" (here: 2).' +
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' Received 10';
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assert.throws(
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() => {
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fs.createReadStream(rangeFile, Object.create({ start: 10, end: 2 }));
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},
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{
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code: 'ERR_OUT_OF_RANGE',
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message,
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name: 'RangeError'
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});
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}
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{
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const options = Object.create({ start: 0, end: 0 });
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const stream = fs.createReadStream(rangeFile, options);
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assert.strictEqual(stream.start, 0);
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assert.strictEqual(stream.end, 0);
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stream.data = '';
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stream.on('data', function(chunk) {
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stream.data += chunk;
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});
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stream.on('end', common.mustCall(function() {
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assert.strictEqual(stream.data, 'x');
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}));
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}
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// Pause and then resume immediately.
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{
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const pauseRes = fs.createReadStream(rangeFile);
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pauseRes.pause();
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pauseRes.resume();
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}
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{
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let data = '';
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let file =
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fs.createReadStream(rangeFile, Object.create({ autoClose: false }));
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assert.strictEqual(file.autoClose, false);
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file.on('data', (chunk) => { data += chunk; });
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file.on('end', common.mustCall(function() {
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process.nextTick(common.mustCall(function() {
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assert(!file.closed);
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assert(!file.destroyed);
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assert.strictEqual(data, 'xyz\n');
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fileNext();
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}));
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}));
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function fileNext() {
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// This will tell us if the fd is usable again or not.
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file = fs.createReadStream(null, Object.create({ fd: file.fd, start: 0 }));
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file.data = '';
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file.on('data', function(data) {
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file.data += data;
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});
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file.on('end', common.mustCall(function() {
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assert.strictEqual(file.data, 'xyz\n');
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}));
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}
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process.on('exit', function() {
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assert(file.closed);
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assert(file.destroyed);
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});
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}
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// Just to make sure autoClose won't close the stream because of error.
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{
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const options = Object.create({ fd: 13337, autoClose: false });
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const file = fs.createReadStream(null, options);
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file.on('data', common.mustNotCall());
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file.on('error', common.mustCall());
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process.on('exit', function() {
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assert(!file.closed);
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assert(!file.destroyed);
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assert(file.fd);
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});
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}
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// Make sure stream is destroyed when file does not exist.
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{
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const file = fs.createReadStream('/path/to/file/that/does/not/exist');
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file.on('data', common.mustNotCall());
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file.on('error', common.mustCall());
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process.on('exit', function() {
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assert(file.closed);
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assert(file.destroyed);
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});
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}
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