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