def test_p2sh(self):
script_type = "p2sh"
# self-consistency
pubkey = "02" "cc71eb30d653c0c3163990c47b976f3fb3f37cccdcbedb169a1dfef58bbfbfaf"
pubkey_hash = hash160(pubkey)
redeem_script = scriptPubKey_from_payload("p2pkh", pubkey_hash)
payload = hash160(redeem_script)
script = encode(["OP_HASH160", payload, "OP_EQUAL"])
# straight to the scriptPubKey
scriptPubKey = p2sh(redeem_script)
self.assertEqual(scriptPubKey.hex(), script.hex())
# to the scriptPubKey in two steps (through payload)
scriptPubKey = scriptPubKey_from_payload(script_type, payload)
self.assertEqual(scriptPubKey.hex(), script.hex())
# back from the scriptPubKey to the payload
script_type2, payload2, m2 = payload_from_scriptPubKey(scriptPubKey)
self.assertEqual(script_type, script_type2)
self.assertEqual(0, m2)
self.assertEqual(payload.hex(), payload2.hex())
script_type2, payload2, m2 = payload_from_scriptPubKey(script)
self.assertEqual(script_type, script_type2)
self.assertEqual(0, m2)
self.assertEqual(payload.hex(), payload2.hex())
# data -> payload is not invertible (hash functions)
# address
network = "mainnet"
address = base58address.p2sh(decode(redeem_script), network)
address2 = address_from_scriptPubKey(scriptPubKey, network)
self.assertEqual(address, address2)
prefix = NETWORKS[network]["p2sh"]
address2 = b58address_from_h160(prefix, payload, network)
self.assertEqual(address, address2)
scriptPubKey2, network2 = scriptPubKey_from_address(address)
self.assertEqual(scriptPubKey2, scriptPubKey)
self.assertEqual(network2, network)
# documented test case: https://learnmeabitcoin.com/guide/p2sh
payload = "748284390f9e263a4b766a75d0633c50426eb875"
script = "a914748284390f9e263a4b766a75d0633c50426eb87587"
scriptPubKey = scriptPubKey_from_payload(script_type, payload)
self.assertEqual(scriptPubKey.hex(), script)
network = "mainnet"
address = b"3CK4fEwbMP7heJarmU4eqA3sMbVJyEnU3V"
address2 = address_from_scriptPubKey(scriptPubKey, network)
self.assertEqual(address, address2)
scriptPubKey2, network2 = scriptPubKey_from_address(address)
self.assertEqual(scriptPubKey2, scriptPubKey)
self.assertEqual(network2, network)
# invalid size: 21 bytes instead of 20
self.assertRaises(ValueError, scriptPubKey_from_payload, "00" * 21,
"p2sh")
def test_p2pkh(self):
script_type = 'p2pkh'
# self-consistency
pubkey = "04cc71eb30d653c0c3163990c47b976f3fb3f37cccdcbedb169a1dfef58bbfbfaff7d8a473e7e2e6d317b87bafe8bde97e3cf8f065dec022b51d11fcdd0d348ac4"
payload = hash160(pubkey)
script = encode(['OP_DUP', 'OP_HASH160', payload,
'OP_EQUALVERIFY', 'OP_CHECKSIG'])
# straight to the scriptPubKey
scriptPubKey = p2pkh(pubkey)
self.assertEqual(scriptPubKey.hex(), script.hex())
# to the scriptPubKey in two steps (through payload)
scriptPubKey = scriptPubKey_from_payload(script_type, payload)
self.assertEqual(scriptPubKey.hex(), script.hex())
# back from the scriptPubKey to the payload
script_type2, payload2, m2 = payload_from_scriptPubKey(scriptPubKey)
self.assertEqual(script_type, script_type2)
self.assertEqual(0, m2)
self.assertEqual(payload.hex(), payload2.hex())
script_type2, payload2, m2 = payload_from_scriptPubKey(script)
self.assertEqual(script_type, script_type2)
self.assertEqual(0, m2)
self.assertEqual(payload.hex(), payload2.hex())
# data -> payload is not invertible (hash functions)
# address
network = 'mainnet'
address = base58address.p2pkh(pubkey, network)
address2 = address_from_scriptPubKey(scriptPubKey, network)
self.assertEqual(address, address2)
prefix = p2pkh_prefix_from_network(network)
address2 = b58address_from_h160(prefix, payload)
self.assertEqual(address, address2)
scriptPubKey2, network2 = scriptPubKey_from_address(address)
self.assertEqual(scriptPubKey2, scriptPubKey)
self.assertEqual(network2, network)
# documented test case: https://learnmeabitcoin.com/guide/p2pkh
payload = "12ab8dc588ca9d5787dde7eb29569da63c3a238c"
script = "76a91412ab8dc588ca9d5787dde7eb29569da63c3a238c88ac"
scriptPubKey = scriptPubKey_from_payload(script_type, payload)
self.assertEqual(scriptPubKey.hex(), script)
network = 'mainnet'
address = b"12higDjoCCNXSA95xZMWUdPvXNmkAduhWv"
address2 = address_from_scriptPubKey(scriptPubKey, network)
self.assertEqual(address, address2)
scriptPubKey2, network2 = scriptPubKey_from_address(address)
self.assertEqual(scriptPubKey2, scriptPubKey)
self.assertEqual(network2, network)
# Invalid size: 11 bytes instead of 20
self.assertRaises(
ValueError, scriptPubKey_from_payload, "00" * 11, 'p2pkh')
def test_p2wsh(self):
script_type = "p2wsh"
# self-consistency
pubkey = "02" "cc71eb30d653c0c3163990c47b976f3fb3f37cccdcbedb169a1dfef58bbfbfaf"
pubkey_hash = hash160(pubkey)
redeem_script = scriptPubKey_from_payload("p2pkh", pubkey_hash)
payload = sha256(redeem_script)
script = encode([0, payload])
# straight to the scriptPubKey
scriptPubKey = p2wsh(decode(redeem_script))
self.assertEqual(scriptPubKey.hex(), script.hex())
# to the scriptPubKey in two steps (through payload)
scriptPubKey = scriptPubKey_from_payload(script_type, payload)
self.assertEqual(scriptPubKey.hex(), script.hex())
# back from the scriptPubKey to the payload
script_type2, payload2, m2 = payload_from_scriptPubKey(scriptPubKey)
self.assertEqual(script_type, script_type2)
self.assertEqual(0, m2)
self.assertEqual(payload.hex(), payload2.hex())
script_type2, payload2, m2 = payload_from_scriptPubKey(script)
self.assertEqual(script_type, script_type2)
self.assertEqual(0, m2)
self.assertEqual(payload.hex(), payload2.hex())
# data -> payload is not invertible (hash functions)
# bech32 address
network = "mainnet"
address = bech32address.p2wsh(redeem_script, network)
address2 = address_from_scriptPubKey(scriptPubKey, network)
self.assertEqual(address, address2)
address2 = b32address_from_witness(0, payload, network)
self.assertEqual(address, address2)
scriptPubKey2, network2 = scriptPubKey_from_address(address)
self.assertEqual(scriptPubKey2, scriptPubKey)
self.assertEqual(network2, network)
# p2sh-wrapped base58 address
address = base58address.p2wsh_p2sh(redeem_script, network)
address2 = b58address_from_witness(payload, network)
self.assertEqual(address, address2)