# coding: utf-8
import unittest
import numbers
from fib import fib
import logging
import pandas as pd

logging.basicConfig( format='%(asctime)-15s [%(levelname)s] %(funcName)s: %(message)s', level=logging.DEBUG)

class TestFib(unittest.TestCase):

# Methode zur Division a/b.
  def divide(self, a,b):
   if b == 0:
     raise ValueError('Dividend darf nicht 0 sein.')

   return int(a/b)


# Die setUp() Methode wird zu Beginn jedes Testcases aufgrufen
  def setUp(self):
    logging.debug('setting up test')
    self.results = [1,1,2,3,5,8,13,21,34,55]

#die beiden Tests aus ./testfib.py mit unittest
  def test_fib(self):

# assertEqual(n,r) testet, ob das Resultat r der Vorgabe n entspricht.
    self.assertEqual(8,fib(5))
    self.assertEqual(34,fib(8))

  def test_mult_fib(self):
    results =[1,1,2,3,5,8,13,21,34,55]

    for n in range(0,9):
     self.assertEqual(results[n],fib(n))

  def test_divide(self):

    self.assertEqual(2, self.divide(2,1))
    self.assertEqual(2, self.divide(4,2))
    self.assertEqual(3, self.divide(6,2))

    with self.assertRaises(ValueError):
      self.divide(1,0)

  def test_excel(self):
    data = pd.read_excel('./Fib-Testdaten.xlsx')
    results  = data["Ergebnis"]

    for key, result in data.items():
      if isinstance(key, numbers.Number): #Überspringen der Überschriftenzeile
        self.assertEqual(result, fib(int(key)))

    print(f'Testdatentyp: ${type(data)}')
    print(f'Testdaten ${results}')

if __name__ == '__main__':
  unittest.main()