def test_to_ten(self):
fib = Fibonacci()
self.assertEqual(2, fib.fib(3))
self.assertEqual(3, fib.fib(4))
self.assertEqual(5, fib.fib(5))
self.assertEqual(8, fib.fib(6))
self.assertEqual(13, fib.fib(7))
self.assertEqual(21, fib.fib(8))
self.assertEqual(34, fib.fib(9))
self.assertEqual(55, fib.fib(10))
def test_neg_number(self):
fib = Fibonacci()
self.assertEqual(0, fib.fib(-5))
def test_larger_nums(self):
fib = Fibonacci()
self.assertEqual(55, fib.fib(20))
self.assertEqual(55, fib.fib(40))
def test_two(self):
fib = Fibonacci()
self.assertEqual(1, fib.fib(2))
def test_one(self):
fib = Fibonacci()
self.assertEqual(1, fib.fib(1))
def test_zero(self):
fib = Fibonacci()
self.assertEqual(0, fib.fib(0))
