gre6en check flip

describe('Utils', () => {
  let str;
  let compose;
  let filter;
  let map;
  let split;
  const { flip } = require('./../utils.js');

  beforeEach(() => {
    str = '1,2,30';
    compose = (...funcs) => {
      const fn = (str) => {
        return funcs.reduce((acc, func) => {
          acc = func(acc);
          return acc;
        }, str);
      };
      return fn;
    };
    const flipfn = flip(compose)(
        filter((x) => x > 10),
        map(Number),
        split(','),
    )(str);
  });

  describe('compose should', () => {
    it('return a new array', () => {
      // Arrange & Act
      const newComposition = flip(compose);

      // Assert
      expect(str).not.toEqual(newComposition);
    });

    it('return a new array with the composed elements', () => {
      // Arrange & Act
      const newCmp = flip(compose);
      // Assert
      expect(newCmp).not.toEqual(str);
    });
  });
});