def test_big_integer_to_ba(self):
b1 = BigInteger(8972340892734890723)
ba = b1.ToByteArray()
integer = BigInteger.from_bytes(ba, 'little')
self.assertEqual(integer, 8972340892734890723)
b2 = BigInteger(-100)
b2ba = b2.ToByteArray()
integer2 = BigInteger.from_bytes(b2ba, 'little')
self.assertEqual(integer2, 65436)
b3 = BigInteger(128)
b3ba = b3.ToByteArray()
self.assertEqual(b3ba, b'\x80\x00')
def test_big_integer_frombytes(self):
b1 = BigInteger(8972340892734890723)
ba = b1.ToByteArray()
b2 = BigInteger.FromBytes(ba)
self.assertEqual(b1, b2)
self.assertTrue(b1.Equals(b2))
def GetHashCodeBytes(self):
"""
Get the hash code in bytes.
Returns:
bytes:
"""
bigint = BigInteger(self.GetHashCode())
return bigint.ToByteArray()
def test_big_integer_sign(self):
b1 = BigInteger(3)
b2 = BigInteger(0)
b3 = BigInteger(-4)
self.assertEqual(b1.Sign, 1)
self.assertEqual(b2.Sign, 0)
self.assertEqual(b3.Sign, -1)
c1 = BigInteger(-100)
c1_bytes = c1.ToByteArray()
c2 = BigInteger.FromBytes(c1_bytes, signed=True)
self.assertEqual(c2.Sign, -1)
c2_unsigned = BigInteger.FromBytes(c1_bytes, signed=False)
self.assertEqual(c2_unsigned.Sign, 1)