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denoland-deno/tests/node_compat/test/parallel/test-stream-passthrough-drain.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 assert = require('assert');
const { PassThrough } = require('stream');
const pt = new PassThrough({ highWaterMark: 0 });
pt.on('drain', common.mustCall());
assert(!pt.write('hello1'));
pt.read();
pt.read();