nodejs/test/parallel/test-buffer-new.js

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'use strict';
const common = require('../common');
const assert = require('assert');
assert.throws(() => new Buffer(42, 'utf8'), common.expectsError({
code: 'ERR_INVALID_ARG_TYPE',
type: TypeError,
message: 'The "string" argument must be of type string. Received type number'
}));