'use strict'; const common = require('../common'); const { deepStrictEqual, throws } = require('assert'); const { runInNewContext } = require('vm'); const checkString = 'test'; const check = Buffer.from(checkString); class MyString extends String { constructor() { super(checkString); } } class MyPrimitive { [Symbol.toPrimitive]() { return checkString; } } class MyBadPrimitive { [Symbol.toPrimitive]() { return 1; } } deepStrictEqual(Buffer.from(new String(checkString)), check); deepStrictEqual(Buffer.from(new MyString()), check); deepStrictEqual(Buffer.from(new MyPrimitive()), check); deepStrictEqual( Buffer.from(runInNewContext('new String(checkString)', { checkString })), check ); [ [{}, 'object'], [new Boolean(true), 'boolean'], [{ valueOf() { return null; } }, 'object'], [{ valueOf() { return undefined; } }, 'object'], [{ valueOf: null }, 'object'], [Object.create(null), 'object'] ].forEach(([input, actualType]) => { const err = common.expectsError({ code: 'ERR_INVALID_ARG_TYPE', type: TypeError, message: 'The first argument must be one of type string, Buffer, ' + 'ArrayBuffer, Array, or Array-like Object. Received ' + `type ${actualType}` }); throws(() => Buffer.from(input), err); }); [ new Number(true), new MyBadPrimitive() ].forEach((input) => { const errMsg = common.expectsError({ code: 'ERR_INVALID_ARG_TYPE', type: TypeError, message: 'The "value" argument must not be of type number. ' + 'Received type number' }); throws(() => Buffer.from(input), errMsg); });