import { expect, test, spyOn } from "bun:test"
import { arrayOfLength, arrayShuffle } from './utils';

test('arrayOfLength', () => {
  expect(arrayOfLength(3)).toHaveLength(3)
})

test('arrayShuffle', () => {
  spyOn(global.Math, 'random').mockReturnValue(0.123);

  const unshuffled = [1, 2, 3]
  const shuffled = arrayShuffle(unshuffled)

  expect(shuffled.includes(unshuffled[0])).toBe(true)
  expect(shuffled.includes(unshuffled[1])).toBe(true)
  expect(shuffled.includes(unshuffled[2])).toBe(true)
  expect(shuffled[0]).not.toBe(unshuffled[0])
  expect(shuffled[1]).not.toBe(unshuffled[1])
  expect(shuffled[2]).not.toBe(unshuffled[2])

  spyOn(global.Math, 'random').mockRestore();
}, { repeats: 9 })