f7cc7f6468
8fcd684505test: ensure reason is checked for invalid blocks rejection (Greg Sanders)1a689a2c88test: fix block tests of invalid_txs (Greg Sanders) Pull request description: We are not actually testing some cases accidentally, for block inclusion. Issue discovered while reviewing https://github.com/bitcoin/bitcoin/pull/32533 ACKs for top commit: maflcko: review ACK8fcd684505🔶 theStack: ACK8fcd684505BrandonOdiwuor: Code Review ACK8fcd684505TheCharlatan: ACK8fcd684505Tree-SHA512: 7e79ea35b64f56b29811b29df5752945cb10ec62465b385be5e4e2d295c3237b15d5dacf9e99661346967e84899da6fc82e3d2bd0ef6e5c51da85247da31e26a
Various test vectors
mainnet_alt.json
For easier testing the difficulty is maximally increased in the first (and only) retarget period, by producing blocks approximately 2 minutes apart.
The alternate mainnet chain was generated as follows:
- use faketime to set node clock to 2 minutes after genesis block
- mine a block using a CPU miner such as https://github.com/pooler/cpuminer
- restart node with a faketime 2 minutes later
for i in {1..2015}
do
faketime "`date -d @"$(( 1231006505 + $i * 120 ))" +'%Y-%m-%d %H:%M:%S'`" \
bitcoind -connect=0 -nocheckpoints -stopatheight=$i
done
The CPU miner is kept running as follows:
./minerd --coinbase-addr 1NQpH6Nf8QtR2HphLRcvuVqfhXBXsiWn8r --no-stratum --algo sha256d --no-longpoll --scantime 3 --retry-pause 1
The payout address is derived from first BIP32 test vector master key:
pkh(xprv9s21ZrQH143K3QTDL4LXw2F7HEK3wJUD2nW2nRk4stbPy6cq3jPPqjiChkVvvNKmPGJxWUtg6LnF5kejMRNNU3TGtRBeJgk33yuGBxrMPHi/44h/0h/0h/<0;1>/*)#fkjtr0yn
It uses pkh() because tr() outputs at low heights are not spendable (unexpected-witness).
This makes each block deterministic except for its timestamp and nonce, which
are stored in mainnet_alt.json and used to reconstruct the chain without
having to redo the proof-of-work.
The timestamp was not kept constant because at difficulty 1 it's not sufficient to only grind the nonce. Grinding the extra_nonce or version field instead would have required additional (stratum) software. It would also make it more complicated to reconstruct the blocks in this test.