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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
// 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');
let passed = false;
class TestStream extends stream.Transform {  _transform(chunk, encoding, done) {    if (!passed) {      // Char 'a' only exists in the last write      passed = chunk.toString().includes('a');    }    done();  }}
const s1 = new stream.Transform({  transform(chunk, encoding, cb) {    process.nextTick(cb, null, chunk);  }});const s2 = new stream.PassThrough();const s3 = new TestStream();s1.pipe(s3);// Don't let s2 auto close which may close s3s2.pipe(s3, { end: false });
// We must write a buffer larger than highWaterMarkconst big = Buffer.alloc(s1.writableHighWaterMark + 1, 'x');
// Since big is larger than highWaterMark, it will be buffered internally.assert(!s1.write(big));// 'tiny' is small enough to pass through internal buffer.assert(s2.write('tiny'));
// Write some small data in next IO loop, which will never be written to s3// Because 'drain' event is not emitted from s1 and s1 is still pausedsetImmediate(s1.write.bind(s1), 'later');
// Assert after two IO loops when all operations have been done.process.on('exit', function() {  assert(passed, 'Large buffer is not handled properly by Writable Stream');});