describe('NonEmptyArray sort', () => {
  it('sorts numbers', () => {
    const arr: NEA.NonEmptyArray<number> = [5, 2, 8, 1, 9]
    const result = sortNumbers(arr)
    expect(result).toEqual([1, 2, 5, 8, 9])
  })

  it('sorts strings', () => {
    const arr: NEA.NonEmptyArray<string> = ['zebra', 'apple', 'mango']
    const result = sortStrings(arr)
    expect(result).toEqual(['apple', 'mango', 'zebra'])
  })

  it('preserves non-emptiness after sort', () => {
    const arr = NEA.of(42)
    const result = sortNumbers(arr)
    expect(result.length).toBeGreaterThan(0)
  })
})