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denoland-deno/tests/node_compat/test/parallel/test-stdout-pipeline-destroy.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 20.11.1
// This file is automatically generated by `tests/node_compat/runner/setup.ts`. Do not modify this file manually.
'use strict';
const common = require('../common');
const { Transform, Readable, pipeline } = require('stream');
const assert = require('assert');
const reader = new Readable({
read(size) { this.push('foo'); }
});
let count = 0;
const err = new Error('this-error-gets-hidden');
const transform = new Transform({
transform(chunk, enc, cb) {
if (count++ >= 5)
this.emit('error', err);
else
cb(null, count.toString() + '\n');
}
});
pipeline(
reader,
transform,
process.stdout,
common.mustCall((e) => {
assert.strictEqual(e, err);
})
);