text: import pytest
  
  import numpy as np
  
  from fibonacci import fib, fib_numpy
  
  
  @pytest.mark.parametrize("f_fib", (fib, fib_numpy))
  def test_random_fib(f_fib):
      n = np.random.randint(1, 1000)
      a = f_fib(n)
      n2 = np.random.randint(3, n)
      assert a[n2] == a[n2-1] + a[n2-2]
  
  def test_fail():
      raise ValueError("It's coffe time now mumford shut up")
  