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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');const assert = require('assert');
const { Readable, Writable } = require('stream');
const ABC = new Uint8Array([0x41, 0x42, 0x43]);const DEF = new Uint8Array([0x44, 0x45, 0x46]);const GHI = new Uint8Array([0x47, 0x48, 0x49]);
{  // Simple Writable test.
  let n = 0;  const writable = new Writable({    write: common.mustCall((chunk, encoding, cb) => {      assert(chunk instanceof Buffer);      if (n++ === 0) {        assert.strictEqual(String(chunk), 'ABC');      } else {        assert.strictEqual(String(chunk), 'DEF');      }
      cb();    }, 2)  });
  writable.write(ABC);  writable.end(DEF);}
{  // Writable test, pass in Uint8Array in object mode.
  const writable = new Writable({    objectMode: true,    write: common.mustCall((chunk, encoding, cb) => {      assert(!(chunk instanceof Buffer));      assert(chunk instanceof Uint8Array);      assert.strictEqual(chunk, ABC);      assert.strictEqual(encoding, 'utf8');      cb();    })  });
  writable.end(ABC);}
{  // Writable test, multiple writes carried out via writev.  let callback;
  const writable = new Writable({    write: common.mustCall((chunk, encoding, cb) => {      assert(chunk instanceof Buffer);      assert.strictEqual(encoding, 'buffer');      assert.strictEqual(String(chunk), 'ABC');      callback = cb;    }),    writev: common.mustCall((chunks, cb) => {      assert.strictEqual(chunks.length, 2);      assert.strictEqual(chunks[0].encoding, 'buffer');      assert.strictEqual(chunks[1].encoding, 'buffer');      assert.strictEqual(chunks[0].chunk + chunks[1].chunk, 'DEFGHI');    })  });
  writable.write(ABC);  writable.write(DEF);  writable.end(GHI);  callback();}
{  // Simple Readable test.  const readable = new Readable({    read() {}  });
  readable.push(DEF);  readable.unshift(ABC);
  const buf = readable.read();  assert(buf instanceof Buffer);  assert.deepStrictEqual([...buf], [...ABC, ...DEF]);}
{  // Readable test, setEncoding.  const readable = new Readable({    read() {}  });
  readable.setEncoding('utf8');
  readable.push(DEF);  readable.unshift(ABC);
  const out = readable.read();  assert.strictEqual(out, 'ABCDEF');}