mirror of
https://github.com/denoland/deno.git
synced 2024-11-24 15:19:26 -05:00
81 lines
2.5 KiB
JavaScript
81 lines
2.5 KiB
JavaScript
// deno-fmt-ignore-file
|
|
// deno-lint-ignore-file
|
|
|
|
// Copyright Joyent and Node contributors. All rights reserved. MIT license.
|
|
// Taken from Node 18.12.1
|
|
// This file is automatically generated by `tools/node_compat/setup.ts`. Do not modify this file manually.
|
|
|
|
// 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';
|
|
const common = require('../common');
|
|
const assert = require('assert');
|
|
const stream = require('stream');
|
|
const str = 'asdfasdfasdfasdfasdf';
|
|
|
|
const r = new stream.Readable({
|
|
highWaterMark: 5,
|
|
encoding: 'utf8'
|
|
});
|
|
|
|
let reads = 0;
|
|
|
|
function _read() {
|
|
if (reads === 0) {
|
|
setTimeout(() => {
|
|
r.push(str);
|
|
}, 1);
|
|
reads++;
|
|
} else if (reads === 1) {
|
|
const ret = r.push(str);
|
|
assert.strictEqual(ret, false);
|
|
reads++;
|
|
} else {
|
|
r.push(null);
|
|
}
|
|
}
|
|
|
|
r._read = common.mustCall(_read, 3);
|
|
|
|
r.on('end', common.mustCall());
|
|
|
|
// Push some data in to start.
|
|
// We've never gotten any read event at this point.
|
|
const ret = r.push(str);
|
|
// Should be false. > hwm
|
|
assert(!ret);
|
|
let chunk = r.read();
|
|
assert.strictEqual(chunk, str);
|
|
chunk = r.read();
|
|
assert.strictEqual(chunk, null);
|
|
|
|
r.once('readable', () => {
|
|
// This time, we'll get *all* the remaining data, because
|
|
// it's been added synchronously, as the read WOULD take
|
|
// us below the hwm, and so it triggered a _read() again,
|
|
// which synchronously added more, which we then return.
|
|
chunk = r.read();
|
|
assert.strictEqual(chunk, str + str);
|
|
|
|
chunk = r.read();
|
|
assert.strictEqual(chunk, null);
|
|
});
|