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denoland-deno/cli/tests/node_compat/test/parallel/test-stream-writable-decoded-encoding.js

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// 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';
require('../common');
const assert = require('assert');
const stream = require('stream');
class MyWritable extends stream.Writable {
constructor(fn, options) {
super(options);
this.fn = fn;
}
_write(chunk, encoding, callback) {
this.fn(Buffer.isBuffer(chunk), typeof chunk, encoding);
callback();
}
}
{
const m = new MyWritable(function(isBuffer, type, enc) {
assert(isBuffer);
assert.strictEqual(type, 'object');
assert.strictEqual(enc, 'buffer');
}, { decodeStrings: true });
m.write('some-text', 'utf8');
m.end();
}
{
const m = new MyWritable(function(isBuffer, type, enc) {
assert(!isBuffer);
assert.strictEqual(type, 'string');
assert.strictEqual(enc, 'utf8');
}, { decodeStrings: false });
m.write('some-text', 'utf8');
m.end();
}