node/test/parallel/test-stream-transform-callback-twice.js
sreepurnajasti d50a802feb errors,stream-transform: migrate to use internal/errors.js
PR-URL: https://github.com/nodejs/node/pull/13310
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
2017-06-15 03:03:45 -04:00

16 lines
439 B
JavaScript

'use strict';
const common = require('../common');
const assert = require('assert');
const { Transform } = require('stream');
const stream = new Transform({
transform(chunk, enc, cb) { cb(); cb(); }
});
stream.on('error', common.mustCall((err) => {
assert.strictEqual(err.toString(),
'Error [ERR_TRANSFORM_MULTIPLE_CALLBACK]: ' +
'Callback called multiple times');
}));
stream.write('foo');