@glidejs/glide/tests/unit/string.test.js

Glide.js is a dependency-free JavaScript ES6 slider and carousel. It’s lightweight, flexible and fast. Designed to slide. No less, no more

import { ucfirst } from '../../src/utils/string'

describe('Function', () => {
  test('`ucfirst` should capitalize passed string', () => {
    expect(ucfirst('string')).toBe('String')
  })
})