mirror of
https://github.com/denoland/deno.git
synced 2024-12-24 16:19:12 -05:00
89 lines
3 KiB
JavaScript
89 lines
3 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 "node/_tools/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';
|
||
|
|
require('../common');
|
||
|
|
const assert = require('assert');
|
||
|
|
|
||
|
|
const Transform = require('stream').Transform;
|
||
|
|
|
||
|
|
const parser = new Transform({ readableObjectMode: true });
|
||
|
|
|
||
|
|
assert(parser._readableState.objectMode);
|
||
|
|
assert(!parser._writableState.objectMode);
|
||
|
|
assert.strictEqual(parser.readableHighWaterMark, 16);
|
||
|
|
assert.strictEqual(parser.writableHighWaterMark, 16 * 1024);
|
||
|
|
assert.strictEqual(parser.readableHighWaterMark,
|
||
|
|
parser._readableState.highWaterMark);
|
||
|
|
assert.strictEqual(parser.writableHighWaterMark,
|
||
|
|
parser._writableState.highWaterMark);
|
||
|
|
|
||
|
|
parser._transform = function(chunk, enc, callback) {
|
||
|
|
callback(null, { val: chunk[0] });
|
||
|
|
};
|
||
|
|
|
||
|
|
let parsed;
|
||
|
|
|
||
|
|
parser.on('data', function(obj) {
|
||
|
|
parsed = obj;
|
||
|
|
});
|
||
|
|
|
||
|
|
parser.end(Buffer.from([42]));
|
||
|
|
|
||
|
|
process.on('exit', function() {
|
||
|
|
assert.strictEqual(parsed.val, 42);
|
||
|
|
});
|
||
|
|
|
||
|
|
|
||
|
|
const serializer = new Transform({ writableObjectMode: true });
|
||
|
|
|
||
|
|
assert(!serializer._readableState.objectMode);
|
||
|
|
assert(serializer._writableState.objectMode);
|
||
|
|
assert.strictEqual(serializer.readableHighWaterMark, 16 * 1024);
|
||
|
|
assert.strictEqual(serializer.writableHighWaterMark, 16);
|
||
|
|
assert.strictEqual(parser.readableHighWaterMark,
|
||
|
|
parser._readableState.highWaterMark);
|
||
|
|
assert.strictEqual(parser.writableHighWaterMark,
|
||
|
|
parser._writableState.highWaterMark);
|
||
|
|
|
||
|
|
serializer._transform = function(obj, _, callback) {
|
||
|
|
callback(null, Buffer.from([obj.val]));
|
||
|
|
};
|
||
|
|
|
||
|
|
let serialized;
|
||
|
|
|
||
|
|
serializer.on('data', function(chunk) {
|
||
|
|
serialized = chunk;
|
||
|
|
});
|
||
|
|
|
||
|
|
serializer.write({ val: 42 });
|
||
|
|
|
||
|
|
process.on('exit', function() {
|
||
|
|
assert.strictEqual(serialized[0], 42);
|
||
|
|
});
|