Files
bitcoin/test/functional/data
Calin Culianu a7b581423e Fix 11-year-old mis-categorized error code in OP_IF evaluation
This was introduced by commit ab9edbd6b6.

It appears the original author may have gotten tired and pasted the wrong
error code into this 1 place. Every other situation where the value stack
lacks the required number of arguments for the op-code,
SCRIPT_ERR_INVALID_STACK_OPERATION is reported. Not so here.

This commit fixes the situation.

Also in this commit:

- Fix script_tests to adjust to the corrected error message
- Fix p2p_invalid_tx functional test to produce the desired error message
2025-03-26 08:12:39 -05:00
..

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.