node/test/parallel/test-stream-decoder-objectmode.js

'use strict';
require('../common');
const stream = require('stream');
const assert = require('assert');

const readable = new stream.Readable({
  read: () => {},
  encoding: 'utf16le',
  objectMode: true
});

readable.push(Buffer.from('abc', 'utf16le'));
readable.push(Buffer.from('def', 'utf16le'));
readable.push(null);

// Without object mode, these would be concatenated into a single chunk.
assert.strictEqual(readable.read(), 'abc');
assert.strictEqual(readable.read(), 'def');
assert.strictEqual(readable.read(), null);