**isLicensePlate(str [, locale])** | check if string matches the format of a country's license plate.<br/><br/>(locale is one of `['de-DE', 'de-LI', 'pt-PT', 'sq-AL', 'pt-BR'']` or `any`).

**isLocale(str)** | check if the string is a locale

**isLowercase(str)** | check if the string is lowercase.

**isMACAddress(str)** | check if the string is a MAC address.<br/><br/>`options` is an object which defaults to `{no_separators: false}`. If `no_separators` is true, the validator will allow MAC addresses without separators. Also, it allows the use of hyphens, spaces or dots e.g '01 02 03 04 05 ab', '01-02-03-04-05-ab' or '0102.0304.05ab'.

**isMagnetURI(str)** | check if the string is a [magnet uri format](https://en.wikipedia.org/wiki/Magnet_URI_scheme).

**isMD5(str)** | check if the string is a MD5 hash.<br/><br/>Please note that you can also use the `isHash(str, 'md5')` function. Keep in mind that MD5 has some collision weaknesses compared to other algorithms (e.g., SHA).

import isNumeric from './lib/isNumeric';

import isPassportNumber from './lib/isPassportNumber';

import isPort from './lib/isPort';

import isLowercase from './lib/isLowercase';

import isUppercase from './lib/isUppercase';

isPassportNumber,

isPort,

isLowercase,

isUppercase,

isAscii,

isFullWidth,

});

});

it('should validate lowercase strings', () => {

test({

validator: 'isLowercase',