mirror of
https://github.com/LBRYFoundation/LBRY-Vault.git
synced 2025-08-23 17:47:31 +00:00
4f5f949979
Clean up tests a bit, and rm some of them. It's overkill to test with SPV._raise_if_valid_tx mocked out.
50 lines
2.2 KiB
Python
50 lines
2.2 KiB
Python
# -*- coding: utf-8 -*-
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from electrum.bitcoin import hash_encode
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from electrum.transaction import Transaction
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from electrum.util import bfh
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from electrum.verifier import SPV, InnerNodeOfSpvProofIsValidTx
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from . import TestCaseForTestnet
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MERKLE_BRANCH = [
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'f2994fd4546086b21b4916b76cf901afb5c4db1c3ecbfc91d6f4cae1186dfe12',
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'6b65935528311901c7acda7db817bd6e3ce2f05d1c62c385b7caadb65fac7520']
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MERKLE_ROOT = '11dbac015b6969ea75509dd1250f33c04ec4d562c2d895de139a65f62f808254'
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VALID_64_BYTE_TX = ('0200000001cb659c5528311901a7aada7db817bd6e3ce2f05d1c62c385b7caad'
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'b65fac75201234000000fabcdefa01abcd1234010000000405060708fabcdefa')
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assert len(VALID_64_BYTE_TX) == 128
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class VerifierTestCase(TestCaseForTestnet):
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# these tests are regarding the attack described in
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# https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2018-June/016105.html
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def test_verify_ok_t_tx(self):
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"""Actually mined 64 byte tx should not raise."""
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t_tx = Transaction(VALID_64_BYTE_TX)
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t_tx_hash = t_tx.txid()
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self.assertEqual(MERKLE_ROOT, SPV.hash_merkle_root(MERKLE_BRANCH, t_tx_hash, 3))
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def test_verify_fail_f_tx_odd(self):
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"""Raise if inner node of merkle branch is valid tx. ('odd' fake leaf position)"""
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# first 32 bytes of T encoded as hash
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fake_branch_node = hash_encode(bfh(VALID_64_BYTE_TX[:64]))
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fake_mbranch = [fake_branch_node] + MERKLE_BRANCH
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# last 32 bytes of T encoded as hash
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f_tx_hash = hash_encode(bfh(VALID_64_BYTE_TX[64:]))
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with self.assertRaises(InnerNodeOfSpvProofIsValidTx):
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SPV.hash_merkle_root(fake_mbranch, f_tx_hash, 7)
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def test_verify_fail_f_tx_even(self):
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"""Raise if inner node of merkle branch is valid tx. ('even' fake leaf position)"""
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# last 32 bytes of T encoded as hash
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fake_branch_node = hash_encode(bfh(VALID_64_BYTE_TX[64:]))
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fake_mbranch = [fake_branch_node] + MERKLE_BRANCH
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# first 32 bytes of T encoded as hash
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f_tx_hash = hash_encode(bfh(VALID_64_BYTE_TX[:64]))
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with self.assertRaises(InnerNodeOfSpvProofIsValidTx):
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SPV.hash_merkle_root(fake_mbranch, f_tx_hash, 6)
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