odin-javascript-exercises/03_reverseString/solution/reverseString-solution.spec.js

const reverseString = require('./reverseString-solution');

describe('reverseString', () => {
  test('reverses single word', () => {
    expect(reverseString('hello')).toEqual('olleh');
  });

  test('reverses multiple words', () => {
    expect(reverseString('hello there')).toEqual('ereht olleh');
  });

  test('works with numbers and punctuation', () => {
    expect(reverseString('123! abc! Hello, Odinite.')).toEqual(
      '.etinidO ,olleH !cba !321'
    );
  });
  test('works with blank strings', () => {
    expect(reverseString('')).toEqual('');
  });
});