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6e86a6651c
Complete the migration to the new error system of _stream_readable and _stream_writable. Adds the corresponding documentation. PR-URL: https://github.com/nodejs/node/pull/16589 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
92 lines
2.7 KiB
JavaScript
92 lines
2.7 KiB
JavaScript
// Copyright Joyent, Inc. and other Node contributors.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the
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// "Software"), to deal in the Software without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Software, and to permit
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// persons to whom the Software is furnished to do so, subject to the
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// following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
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// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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// USE OR OTHER DEALINGS IN THE SOFTWARE.
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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 path = require('path');
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const fs = require('fs');
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const fn = path.join(common.tmpDir, 'write.txt');
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common.refreshTmpDir();
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const file = fs.createWriteStream(fn, {
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highWaterMark: 10
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});
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const EXPECTED = '012345678910';
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const callbacks = {
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open: -1,
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drain: -2,
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close: -1
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};
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file
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.on('open', function(fd) {
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console.error('open!');
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callbacks.open++;
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assert.strictEqual('number', typeof fd);
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})
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.on('error', function(err) {
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throw err;
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})
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.on('drain', function() {
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console.error('drain!', callbacks.drain);
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callbacks.drain++;
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if (callbacks.drain === -1) {
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assert.strictEqual(EXPECTED, fs.readFileSync(fn, 'utf8'));
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file.write(EXPECTED);
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} else if (callbacks.drain === 0) {
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assert.strictEqual(EXPECTED + EXPECTED, fs.readFileSync(fn, 'utf8'));
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file.end();
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}
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})
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.on('close', function() {
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console.error('close!');
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assert.strictEqual(file.bytesWritten, EXPECTED.length * 2);
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callbacks.close++;
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common.expectsError(
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() => {
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console.error('write after end should not be allowed');
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file.write('should not work anymore');
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},
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{
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code: 'ERR_STREAM_WRITE_AFTER_END',
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type: Error,
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message: 'write after end'
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}
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);
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fs.unlinkSync(fn);
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});
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for (let i = 0; i < 11; i++) {
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file.write(`${i}`);
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}
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process.on('exit', function() {
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for (const k in callbacks) {
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assert.strictEqual(0, callbacks[k], `${k} count off by ${callbacks[k]}`);
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}
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console.log('ok');
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});
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