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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
require('../common');
const assert = require('assert');
const path = require('path');
const fs = require('fs');
const tmpdir = require('../common/tmpdir');
const filepath = path.join(tmpdir.path, 'write.txt');
const EXPECTED = '012345678910';
const cb_expected = 'write open drain write drain close error ';
let cb_occurred = '';
let countDrains = 0;
process.on('exit', function() {
removeTestFile();
if (cb_occurred !== cb_expected) {
console.log(' Test callback events missing or out of order:');
console.log(` expected: ${cb_expected}`);
console.log(` occurred: ${cb_occurred}`);
assert.strictEqual(
cb_occurred, cb_expected,
`events missing or out of order: "${cb_occurred}" !== "${cb_expected}"`);
} else {
console.log('ok');
}
});
function removeTestFile() {
try {
fs.unlinkSync(filepath);
} catch {}
}
tmpdir.refresh();
// Drain at 0, return false at 10.
const file = fs.createWriteStream(filepath, {
highWaterMark: 11
});
file.on('open', function(fd) {
console.error('open');
cb_occurred += 'open ';
assert.strictEqual(typeof fd, 'number');
});
file.on('drain', function() {
console.error('drain');
cb_occurred += 'drain ';
++countDrains;
if (countDrains === 1) {
console.error('drain=1, write again');
assert.strictEqual(fs.readFileSync(filepath, 'utf8'), EXPECTED);
console.error(`ondrain write ret= ${file.write(EXPECTED)}`);
cb_occurred += 'write ';
} else if (countDrains === 2) {
console.error('second drain, end');
assert.strictEqual(fs.readFileSync(filepath, 'utf8'), EXPECTED + EXPECTED);
file.end();
}
});
file.on('close', function() {
cb_occurred += 'close ';
assert.strictEqual(file.bytesWritten, EXPECTED.length * 2);
file.write('should not work anymore');
});
file.on('error', function(err) {
cb_occurred += 'error ';
assert.ok(err.message.includes('write after end'));
});
for (let i = 0; i < 11; i++) {
const ret = file.write(String(i));
console.error(`${i} ${ret}`);
// Return false when i hits 10
assert.strictEqual(ret, i !== 10);
}
cb_occurred += 'write ';
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