Unit test for listsinceblock bug where a reorg results in an invalid depth, losing transactions made on alternate (now main) chain.

testcase-listsinceblock.js

if (process.argv.length !== 3) {
    console.log("syntax: <bitcoin/src path>");
    process.exit(1);
}
const bitcoin = process.argv[2];
const { BitcoinNet, BitcoinGraph } = require('bitcointest');
const net = new BitcoinNet(bitcoin, '/tmp/bitcointest', 23001, 23002);

try {
console.log('starting nodes');
const graph = new BitcoinGraph(net);
const nodes = net.launchBatchS(4);
const [n1,n2,n3,n4] = nodes;
net.waitForNodesS(nodes, 50000);
console.log('generating initial blocks');
net.mergeS(nodes);
n3.generateBlocksS(100);
net.syncS(nodes);
n1.generateBlocksS(10);
net.syncS(nodes);
console.log('waiting for balance');
n3.waitForBalanceChangeS(0);
if (n3.getBalanceS() < 1) throw "n3 balance invalid";
addr = n1.getNewAddressS();
console.log(`splitting network and making payment to ${addr} (left) from right side`);
const [g1,g2] = net.partitionS(nodes, 2);
graph.printBlockChainsS(g1,g2);
txid = n3.sendToNodeS(n1, 1);
blocks = n1.generateBlocksS(6);
lastblock = blocks[5];
console.log(`known last block = ${lastblock}`);
n3.generateBlocksS(6);
net.mergeS(nodes);
n3.generateBlocksS(1);
// a node on n1 last checked when lastblock was as above, but a reorg has now occured
net.syncS(nodes);
n1.client.listSinceBlock(lastblock, (e,i) => {
    if (e) throw e.message;
    r = i.result;
    let found = false;
    for (const tx of r.transactions) {
        if (tx.txid === txid) {
            found = true;
            break;
        }
    }
    net.shutdownS();
    if (!found) throw "did not find tx";
    console.log('found tx');
    process.exit(0);
});
} catch (e) {
    net.shutdownS();
    throw typeof(e) == 'string' ? e : JSON.stringify(e);
}