def test_base256_padding(self):
result = Helper.base256_encode(1230, minwidth=5)
self.assertEqual(5, len(result))
def test_base256_zero_input(self):
result = Helper.base256_encode(0)
self.assertEqual(bytearray.fromhex('00'), result)
def test_base256_negative_input(self):
with self.assertRaises(ValueError) as context:
Helper.base256_encode(-1)
self.assertTrue(
"Negative numbers not supported" in str(context.exception))
def test_base256_encode(self):
val = 1234567890
res = Helper.base256_encode(val)
self.assertEqual(res, bytearray(b'\xd2\x02\x96I'))