import { cleanup } from '@testing-library/react';

import { arrayIsEmpty, arrayMove } from '.';

afterEach(cleanup);

describe('Check "utils/common/array"', () => {
  describe('arrayIsEmpty', () => {
    it('check with empty arrays', () => {
      expect(arrayIsEmpty([])).toBeTruthy();
      expect(arrayIsEmpty([false])).toBeTruthy();
      expect(arrayIsEmpty([null])).toBeTruthy();
      expect(arrayIsEmpty([undefined])).toBeTruthy();
      expect(arrayIsEmpty([NaN])).toBeTruthy();
    });

    it('check with non-empty arrays', () => {
      expect(arrayIsEmpty([0])).toBeFalsy();
      expect(arrayIsEmpty([''])).toBeFalsy();
      expect(arrayIsEmpty([[]])).toBeFalsy();
      expect(arrayIsEmpty([{}])).toBeFalsy();
      expect(arrayIsEmpty([() => false])).toBeFalsy();
    });
  });

  const item1 = 1;
  const item2 = 2;
  const item3 = 3;
  const array = [item1, item2, item3];

  describe('arrayMove', () => {
    it('check switch array items indexes', () => {
      const newArray = arrayMove(array, 0, 2);
      expect(newArray[2]).toBe(item1);
      expect(newArray[0]).toBe(item2);
    });

    it('check with the negative indexes', () => {
      const newArray = arrayMove(array, -3, -1);
      expect(newArray[2]).toBe(item1);
      expect(newArray[0]).toBe(item2);
    });
  });
});