def test_from_raw(self):
new_block = Block.from_raw_with_operations(self.block.raw_with_operations())
self.assertIsInstance(new_block, Block)
for attr in ('previous_block_rev', 'timestamp', 'operations_limit', 'difficulty',
'padding', 'signature'):
self.assertEqual(getattr(new_block, attr), getattr(self.block, attr))
self.assertEqual(new_block.operations_full_raw(), self.block.operations_full_raw())
self.assertEqual(new_block.public_key.der, self.block.public_key.der)
self.assertEqual(new_block.is_checksum_correct(), self.block.is_checksum_correct())
def test_mangled_raw(self):
raw = self.block.raw_with_operations()
with self.assertRaisesRegex(RawFormatError, "raw input too short"):
Block.from_raw_with_operations(raw[:-1])
with self.assertRaisesRegex(RawFormatError, "raw input too long"):
Block.from_raw_with_operations(raw + b'\x00')
with self.assertRaisesRegex(Block.VerifyError, "wrong signature"):
mangled_raw = bytearray(raw)
mangled_raw[-1] = 0
Block.from_raw_with_operations(mangled_raw).verify_id(self.block.id)
with self.assertRaisesRegex(Block.VerifyError, "wrong object id"):
Block.from_raw_with_operations(raw).verify_id(b'wrong hash')
with self.assertRaisesRegex(Block.VerifyError, "wrong object id"):
Block.from_raw_with_operations(raw).verify_id(sha256(b'wrong hash'))
with self.assertRaisesRegex(RawFormatError, "version number mismatch"):
Block.from_raw((2).to_bytes(4, 'big') + self.block.raw()[4:])
def process_block(self, raw_block):
block = Block.from_raw_with_operations(raw_block)
with patch.object(BlockChain, '_get_new_blocks', return_value=[block]):
pmpi.core.get_blockchain().update_blocks()
