def test_negative_value(self): assert_that(fibonacci(-10), equal_to(False))
def test_string(self): assert_that(fibonacci("xxx"), equal_to(False)) # assert 1+1 == 2
def test_ten(self): assert_that(fibonacci(10), equal_to(34))
def test_two(self): assert_that(fibonacci(2), equal_to(1))
def test_one(self): assert_that(fibonacci(1), equal_to(0))
def test_zero(self): assert_that(fibonacci(0), equal_to(False))