import { shuffle } from '../FisherYatesShuffle'

describe('shuffle', () => {

it('expects to have a new array with same size', () => {

const fibonacci = [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89]

const mixedArray = shuffle(fibonacci)

expect(mixedArray).toHaveLength(fibonacci.length)

})

it('expects to have a new array with same values', () => {

const fibonacci = [0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89]

const mixedArray = shuffle(fibonacci)

expect(mixedArray).toContain(0)

expect(mixedArray).toContain(1)

expect(mixedArray).toContain(2)

expect(mixedArray).toContain(3)

expect(mixedArray).toContain(5)

expect(mixedArray).toContain(8)

expect(mixedArray).toContain(13)

expect(mixedArray).toContain(21)

expect(mixedArray).toContain(34)

expect(mixedArray).toContain(55)

expect(mixedArray).toContain(89)

})

})