describe('Array sort operations', () => {
  it('sorts numbers in ascending order', () => {
    const result = sortNumbersAscending([5, 2, 8, 1, 9])
    expect(result).toEqual([1, 2, 5, 8, 9])
  })

  it('handles empty array', () => {
    const result = sortNumbersAscending([])
    expect(result).toEqual([])
  })

  it('sorts users by age', () => {
    const users = [
      { name: 'Alice', age: 30 },
      { name: 'Bob', age: 25 },
      { name: 'Charlie', age: 35 },
    ]
    const result = sortUsersByAge(users)
    expect(result).toEqual([
      { name: 'Bob', age: 25 },
      { name: 'Alice', age: 30 },
      { name: 'Charlie', age: 35 },
    ])
  })
})