opbi / ncm-preset-package

import join from 'index';

describe('join', () => {

  it('works if input is string', () => {

    const result = join('hello', 'world');

    expect(result).toBe('hello world');

  });

  it('would fail if input is not string', () => {

    const corrupted = () => join(2, 'yes');

    expect(corrupted).toThrowErrorMatchingSnapshot();

  });

});