import { fibonacciIndex } from '../Problem025'

describe('Check Problem 25 - 1000 digit Fibonnaci number', () => {
  it('First term of the Fibonnaci sequence containing 3 digits', () => {
    expect(fibonacciIndex(3)).toBe(12)
  })

  it('First term of the Fibonnaci sequence containing 10 digits', () => {
    expect(fibonacciIndex(10)).toBe(45)
  })

  it('First term of the Fibonnaci sequence containing 50 digits', () => {
    expect(fibonacciIndex(50)).toBe(237)
  })

  it('First term of the Fibonnaci sequence containing 100 digits', () => {
    expect(fibonacciIndex(100)).toBe(476)
  })

  it('First term of the Fibonnaci sequence containing 1000 digits', () => {
    expect(fibonacciIndex(1000)).toBe(4782)
  })

  it('First term of the Fibonnaci sequence containing 10000 digits', () => {
    expect(fibonacciIndex(10000)).toBe(47847)
  })
})