44 lines
1.6 KiB
Python
44 lines
1.6 KiB
Python
import unittest
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from binascii import hexlify, unhexlify
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from lbry.wallet.claim_proofs import get_hash_for_outpoint, verify_proof
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from torba.client.hash import double_sha256
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class ClaimProofsTestCase(unittest.TestCase):
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def test_verify_proof(self):
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claim1_name = 97 # 'a'
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claim1_txid = 'bd9fa7ffd57d810d4ce14de76beea29d847b8ac34e8e536802534ecb1ca43b68'
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claim1_outpoint = 0
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claim1_height = 10
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claim1_node_hash = get_hash_for_outpoint(
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unhexlify(claim1_txid)[::-1], claim1_outpoint, claim1_height)
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claim2_name = 98 # 'b'
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claim2_txid = 'ad9fa7ffd57d810d4ce14de76beea29d847b8ac34e8e536802534ecb1ca43b68'
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claim2_outpoint = 1
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claim2_height = 5
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claim2_node_hash = get_hash_for_outpoint(
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unhexlify(claim2_txid)[::-1], claim2_outpoint, claim2_height)
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to_hash1 = claim1_node_hash
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hash1 = double_sha256(to_hash1)
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to_hash2 = bytes((claim1_name,)) + hash1 + bytes((claim2_name,)) + claim2_node_hash
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root_hash = double_sha256(to_hash2)
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proof = {
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'last takeover height': claim1_height, 'txhash': claim1_txid, 'nOut': claim1_outpoint,
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'nodes': [
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{'children': [
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{'character': 97},
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{
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'character': 98,
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'nodeHash': hexlify(claim2_node_hash[::-1])
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}
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]},
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{'children': []},
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]
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}
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out = verify_proof(proof, hexlify(root_hash[::-1]), 'a')
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self.assertTrue(out)
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