def test_fibonacci_sequence(self):
'''Test a known sequence of Fibonacci numbers'''
# Source: https://en.wikipedia.org/wiki/Fibonacci_number
known_fibonacci_sequence = {
1: 0,
2: 1,
3: 1,
4: 2,
5: 3,
6: 5,
7: 8,
8: 13,
9: 21,
10: 34,
11: 55,
12: 89,
13: 144,
14: 233,
15: 377,
16: 610,
17: 987,
18: 1597,
19: 2584,
20: 4181,
21: 6765,
}
for n_th, expected_result in known_fibonacci_sequence.items():
calculated = fibonacci.calculate(n=n_th)
self.assertEqual(first=calculated, second=expected_result)
def handler(event: Dict, context: Dict) -> Dict:
'''Lambda handler function'''
global first_run
cold_start = True if first_run else False
first_run = False
n = event.get('n', c.DEFAULT_FIBONACCI_N)
n_th = fibonacci.calculate(n=n)
return {
'cold_start': cold_start,
'n_th': n_th,
'remaining_time': context.get_remaining_time_in_millis(),
}
def test_boundary_logic(self):
self.assertEqual(fibonacci.calculate(0), 0)
self.assertEqual(fibonacci.calculate(1), 1)
def test_api_interface(self):
# self.assertRaises(fibonacci.calculate(), 'TypeError')
self.assertEqual(fibonacci.calculate(0), 0)
def test_incorrect_input(self):
self.assertEqual(fibonacci.calculate(-1), "WRONG INPUT")
self.assertEqual(fibonacci.calculate(4.4), "WRONG INPUT")
self.assertEqual(fibonacci.calculate("a small banana"), "WRONG INPUT")
self.assertEqual(fibonacci.calculate(False), "WRONG INPUT")
self.assertEqual(fibonacci.calculate(None), "WRONG INPUT")
def test_logic(self):
self.assertEqual(fibonacci.calculate(2), 1)
self.assertEqual(fibonacci.calculate(3), 2)
self.assertEqual(fibonacci.calculate(4), 3)
self.assertEqual(fibonacci.calculate(5), 5)
self.assertEqual(fibonacci.calculate(10), 55)
def test_one():
result = fibonacci.calculate(1)
assert result == 1
def test_zero():
result = fibonacci.calculate(0)
assert result == 0
def test_negative_number():
with pytest.raises(ValueError):
fibonacci.calculate(-1)
def test_string():
with pytest.raises(TypeError):
fibonacci.calculate('AAAA')
def test_valid_number():
result = fibonacci.calculate(6)
assert result == 8
def test_three():
result = fibonacci.calculate(3)
assert result == 2
