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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 18.12.0// This file is automatically generated by "node/_tools/setup.ts". Do not modify this file manually
'use strict';const common = require('../common');
// Regression test for https://github.com/nodejs/node/issues/12718.// Tests that piping a source stream twice to the same destination stream// works, and that a subsequent unpipe() call only removes the pipe *once*.const assert = require('assert');const { PassThrough, Writable } = require('stream');
{  const passThrough = new PassThrough();  const dest = new Writable({    write: common.mustCall((chunk, encoding, cb) => {      assert.strictEqual(`${chunk}`, 'foobar');      cb();    })  });
  passThrough.pipe(dest);  passThrough.pipe(dest);
  assert.strictEqual(passThrough._events.data.length, 2);  assert.strictEqual(passThrough._readableState.pipes.length, 2);  assert.strictEqual(passThrough._readableState.pipes[0], dest);  assert.strictEqual(passThrough._readableState.pipes[1], dest);
  passThrough.unpipe(dest);
  assert.strictEqual(passThrough._events.data.length, 1);  assert.strictEqual(passThrough._readableState.pipes.length, 1);  assert.deepStrictEqual(passThrough._readableState.pipes, [dest]);
  passThrough.write('foobar');  passThrough.pipe(dest);}
{  const passThrough = new PassThrough();  const dest = new Writable({    write: common.mustCall((chunk, encoding, cb) => {      assert.strictEqual(`${chunk}`, 'foobar');      cb();    }, 2)  });
  passThrough.pipe(dest);  passThrough.pipe(dest);
  assert.strictEqual(passThrough._events.data.length, 2);  assert.strictEqual(passThrough._readableState.pipes.length, 2);  assert.strictEqual(passThrough._readableState.pipes[0], dest);  assert.strictEqual(passThrough._readableState.pipes[1], dest);
  passThrough.write('foobar');}
{  const passThrough = new PassThrough();  const dest = new Writable({    write: common.mustNotCall()  });
  passThrough.pipe(dest);  passThrough.pipe(dest);
  assert.strictEqual(passThrough._events.data.length, 2);  assert.strictEqual(passThrough._readableState.pipes.length, 2);  assert.strictEqual(passThrough._readableState.pipes[0], dest);  assert.strictEqual(passThrough._readableState.pipes[1], dest);
  passThrough.unpipe(dest);  passThrough.unpipe(dest);
  assert.strictEqual(passThrough._events.data, undefined);  assert.strictEqual(passThrough._readableState.pipes.length, 0);
  passThrough.write('foobar');}