@tetcoin/util/string/lowerFirst.spec.js

A collection of useful utilities for @tetcoin

"use strict";

var _ = require(".");

// Copyright 2017-2019 @polkadot/util authors & contributors
// This software may be modified and distributed under the terms
// of the Apache-2.0 license. See the LICENSE file for details.
describe('stringLowerFirst', () => {
  it("lowers the first letter if it's a capital letter", () => {
    expect((0, _.stringLowerFirst)('ABC')).toBe('aBC');
  });
  it("lowers the first letter if it's a lowercase letter", () => {
    expect((0, _.stringLowerFirst)('abc')).toBe('abc');
  });
  it('returns undefined as empty', () => {
    expect((0, _.stringLowerFirst)()).toBe('');
  });
  it('returns null as empty', () => {
    expect((0, _.stringLowerFirst)(null)).toBe('');
  });
});