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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';require('../common');const assert = require('assert');const stream = require('stream');const Writable = stream.Writable;
// Test the buffering behavior of Writable streams.//// The call to cork() triggers storing chunks which are flushed// on calling uncork() in the same tick.//// node version target: 0.12
const expectedChunks = ['please', 'buffer', 'me', 'kindly'];const inputChunks = expectedChunks.slice(0);let seenChunks = [];let seenEnd = false;
const w = new Writable();// Let's arrange to store the chunks.w._write = function(chunk, encoding, cb) {  // Default encoding given none was specified.  assert.strictEqual(encoding, 'buffer');
  seenChunks.push(chunk);  cb();};// Let's record the stream end event.w.on('finish', () => {  seenEnd = true;});
function writeChunks(remainingChunks, callback) {  const writeChunk = remainingChunks.shift();  let writeState;
  if (writeChunk) {    setImmediate(() => {      writeState = w.write(writeChunk);      // We were not told to stop writing.      assert.ok(writeState);
      writeChunks(remainingChunks, callback);    });  } else {    callback();  }}
// Do an initial write.w.write('stuff');// The write was immediate.assert.strictEqual(seenChunks.length, 1);// Reset the chunks seen so far.seenChunks = [];
// Trigger stream buffering.w.cork();
// Write the bufferedChunks.writeChunks(inputChunks, () => {  // Should not have seen anything yet.  assert.strictEqual(seenChunks.length, 0);
  // Trigger writing out the buffer.  w.uncork();
  // Buffered bytes should be seen in current tick.  assert.strictEqual(seenChunks.length, 4);
  // Did the chunks match.  for (let i = 0, l = expectedChunks.length; i < l; i++) {    const seen = seenChunks[i];    // There was a chunk.    assert.ok(seen);
    const expected = Buffer.from(expectedChunks[i]);    // It was what we expected.    assert.ok(seen.equals(expected));  }
  setImmediate(() => {    // The stream should not have been ended.    assert.ok(!seenEnd);  });});