diff --git a/qa/pull-tester/rpc-tests.sh b/qa/pull-tester/rpc-tests.sh index 7a7b8c0f2..790c6e3f7 100755 --- a/qa/pull-tester/rpc-tests.sh +++ b/qa/pull-tester/rpc-tests.sh @@ -35,6 +35,7 @@ testScripts=( 'walletbackup.py' 'nodehandling.py' 'reindex.py' + 'decodescript.py' 'zcjoinsplit.py' 'zcjoinsplitdoublespend.py' 'getblocktemplate.py' diff --git a/qa/rpc-tests/decodescript.py b/qa/rpc-tests/decodescript.py new file mode 100755 index 000000000..ce3bc94ef --- /dev/null +++ b/qa/rpc-tests/decodescript.py @@ -0,0 +1,116 @@ +#!/usr/bin/env python2 +# Copyright (c) 2015 The Bitcoin Core developers +# Distributed under the MIT software license, see the accompanying +# file COPYING or http://www.opensource.org/licenses/mit-license.php. + +from test_framework.test_framework import BitcoinTestFramework +from test_framework.util import * + +class DecodeScriptTest(BitcoinTestFramework): + """Tests decoding scripts via RPC command "decodescript".""" + + def setup_chain(self): + print('Initializing test directory ' + self.options.tmpdir) + initialize_chain_clean(self.options.tmpdir, 1) + + def setup_network(self, split=False): + self.nodes = start_nodes(1, self.options.tmpdir) + self.is_network_split = False + + def decodescript_script_sig(self): + signature = '304502207fa7a6d1e0ee81132a269ad84e68d695483745cde8b541e3bf630749894e342a022100c1f7ab20e13e22fb95281a870f3dcf38d782e53023ee313d741ad0cfbc0c509001' + push_signature = '48' + signature + public_key = '03b0da749730dc9b4b1f4a14d6902877a92541f5368778853d9c4a0cb7802dcfb2' + push_public_key = '21' + public_key + + # below are test cases for all of the standard transaction types + + # 1) P2PK scriptSig + # the scriptSig of a public key scriptPubKey simply pushes a signature onto the stack + rpc_result = self.nodes[0].decodescript(push_signature) + assert_equal(signature, rpc_result['asm']) + + # 2) P2PKH scriptSig + rpc_result = self.nodes[0].decodescript(push_signature + push_public_key) + assert_equal(signature + ' ' + public_key, rpc_result['asm']) + + # 3) multisig scriptSig + # this also tests the leading portion of a P2SH multisig scriptSig + # OP_0 + rpc_result = self.nodes[0].decodescript('00' + push_signature + push_signature) + assert_equal('0 ' + signature + ' ' + signature, rpc_result['asm']) + + # 4) P2SH scriptSig + # an empty P2SH redeemScript is valid and makes for a very simple test case. + # thus, such a spending scriptSig would just need to pass the outer redeemScript + # hash test and leave true on the top of the stack. + rpc_result = self.nodes[0].decodescript('5100') + assert_equal('1 0', rpc_result['asm']) + + # 5) null data scriptSig - no such thing because null data scripts can not be spent. + # thus, no test case for that standard transaction type is here. + + def decodescript_script_pub_key(self): + public_key = '03b0da749730dc9b4b1f4a14d6902877a92541f5368778853d9c4a0cb7802dcfb2' + push_public_key = '21' + public_key + public_key_hash = '11695b6cd891484c2d49ec5aa738ec2b2f897777' + push_public_key_hash = '14' + public_key_hash + + # below are test cases for all of the standard transaction types + + # 1) P2PK scriptPubKey + # OP_CHECKSIG + rpc_result = self.nodes[0].decodescript(push_public_key + 'ac') + assert_equal(public_key + ' OP_CHECKSIG', rpc_result['asm']) + + # 2) P2PKH scriptPubKey + # OP_DUP OP_HASH160 OP_EQUALVERIFY OP_CHECKSIG + rpc_result = self.nodes[0].decodescript('76a9' + push_public_key_hash + '88ac') + assert_equal('OP_DUP OP_HASH160 ' + public_key_hash + ' OP_EQUALVERIFY OP_CHECKSIG', rpc_result['asm']) + + # 3) multisig scriptPubKey + # OP_CHECKMULTISIG + # just imagine that the pub keys used below are different. + # for our purposes here it does not matter that they are the same even though it is unrealistic. + rpc_result = self.nodes[0].decodescript('52' + push_public_key + push_public_key + push_public_key + '53ae') + assert_equal('2 ' + public_key + ' ' + public_key + ' ' + public_key + ' 3 OP_CHECKMULTISIG', rpc_result['asm']) + + # 4) P2SH scriptPubKey + # OP_HASH160 OP_EQUAL. + # push_public_key_hash here should actually be the hash of a redeem script. + # but this works the same for purposes of this test. + rpc_result = self.nodes[0].decodescript('a9' + push_public_key_hash + '87') + assert_equal('OP_HASH160 ' + public_key_hash + ' OP_EQUAL', rpc_result['asm']) + + # 5) null data scriptPubKey + # use a signature look-alike here to make sure that we do not decode random data as a signature. + # this matters if/when signature sighash decoding comes along. + # would want to make sure that no such decoding takes place in this case. + signature_imposter = '48304502207fa7a6d1e0ee81132a269ad84e68d695483745cde8b541e3bf630749894e342a022100c1f7ab20e13e22fb95281a870f3dcf38d782e53023ee313d741ad0cfbc0c509001' + # OP_RETURN + rpc_result = self.nodes[0].decodescript('6a' + signature_imposter) + assert_equal('OP_RETURN ' + signature_imposter[2:], rpc_result['asm']) + + # 6) a CLTV redeem script. redeem scripts are in-effect scriptPubKey scripts, so adding a test here. + # OP_NOP2 is also known as OP_CHECKLOCKTIMEVERIFY. + # just imagine that the pub keys used below are different. + # for our purposes here it does not matter that they are the same even though it is unrealistic. + # + # OP_IF + # OP_CHECKSIGVERIFY + # OP_ELSE + # OP_NOP2 OP_DROP + # OP_ENDIF + # OP_CHECKSIG + # + # lock until block 500,000 + rpc_result = self.nodes[0].decodescript('63' + push_public_key + 'ad670320a107b17568' + push_public_key + 'ac') + assert_equal('OP_IF ' + public_key + ' OP_CHECKSIGVERIFY OP_ELSE 500000 OP_NOP2 OP_DROP OP_ENDIF ' + public_key + ' OP_CHECKSIG', rpc_result['asm']) + + def run_test(self): + self.decodescript_script_sig() + self.decodescript_script_pub_key() + +if __name__ == '__main__': + DecodeScriptTest().main() +