@variantjs/core/src/__tests__/pad.test.ts

VariantJS common functions and utilities

import pad from '../helpers/pad';

describe('pad', () => {
  it('adds a leading zero to a string', () => {
    expect(pad('1')).toBe('01');
  });
  it('adds a leading zero to a number', () => {
    expect(pad(1)).toBe('01');
  });

  it('doesnt adds more zero if already have 2 chars', () => {
    expect(pad('11')).toBe('11');
  });

  it('doesnt adds more zero if more than 2 chars', () => {
    expect(pad('111')).toBe('111');
  });

  it('adds up to 5 leading zeros', () => {
    expect(pad('23', 5)).toBe('00023');
  });
});