mirror of https://gitee.com/openkylin/nodejs.git
113 lines
3.2 KiB
JavaScript
113 lines
3.2 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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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 tmpdir = require('../common/tmpdir');
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const filepath = path.join(tmpdir.path, 'write.txt');
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const EXPECTED = '012345678910';
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const cb_expected = 'write open drain write drain close error ';
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let cb_occurred = '';
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let countDrains = 0;
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process.on('exit', function() {
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removeTestFile();
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if (cb_occurred !== cb_expected) {
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console.log(' Test callback events missing or out of order:');
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console.log(` expected: ${cb_expected}`);
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console.log(` occurred: ${cb_occurred}`);
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assert.strictEqual(
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cb_occurred, cb_expected,
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`events missing or out of order: "${cb_occurred}" !== "${cb_expected}"`);
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} else {
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console.log('ok');
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}
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});
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function removeTestFile() {
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try {
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fs.unlinkSync(filepath);
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} catch {}
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}
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tmpdir.refresh();
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// Drain at 0, return false at 10.
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const file = fs.createWriteStream(filepath, {
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highWaterMark: 11
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});
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file.on('open', function(fd) {
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console.error('open');
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cb_occurred += 'open ';
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assert.strictEqual(typeof fd, 'number');
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});
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file.on('drain', function() {
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console.error('drain');
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cb_occurred += 'drain ';
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++countDrains;
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if (countDrains === 1) {
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console.error('drain=1, write again');
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assert.strictEqual(fs.readFileSync(filepath, 'utf8'), EXPECTED);
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console.error(`ondrain write ret= ${file.write(EXPECTED)}`);
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cb_occurred += 'write ';
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} else if (countDrains === 2) {
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console.error('second drain, end');
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assert.strictEqual(fs.readFileSync(filepath, 'utf8'), EXPECTED + EXPECTED);
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file.end();
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}
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});
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file.on('close', function() {
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cb_occurred += 'close ';
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assert.strictEqual(file.bytesWritten, EXPECTED.length * 2);
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file.write('should not work anymore');
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});
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file.on('error', function(err) {
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cb_occurred += 'error ';
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assert.ok(err.message.includes('write after end'));
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});
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for (let i = 0; i < 11; i++) {
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const ret = file.write(String(i));
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console.error(`${i} ${ret}`);
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// Return false when i hits 10
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assert.strictEqual(ret, i !== 10);
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}
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cb_occurred += 'write ';
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