denoland-deno/tests/node_compat/test/parallel/test-fs-read-stream-fd.js

// 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 `tests/node_compat/runner/setup.ts`. Do not modify this file manually.

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'use strict';
const common = require('../common');
const fs = require('fs');
const assert = require('assert');
const tmpdir = require('../common/tmpdir');
const file = tmpdir.resolve('read_stream_fd_test.txt');
const input = 'hello world';

let output = '';
tmpdir.refresh();
fs.writeFileSync(file, input);

const fd = fs.openSync(file, 'r');
const stream = fs.createReadStream(null, { fd: fd, encoding: 'utf8' });

assert.strictEqual(stream.path, undefined);

stream.on('data', common.mustCallAtLeast((data) => {
  output += data;
}));

process.on('exit', () => {
  assert.strictEqual(output, input);
});