exit $TEST_RESULT
def check_channels(): channels = lnd.list_channels() for chan in channels.channels: local_bal = chan.local_balance remote_bal = chan.remote_balance total = local_bal + remote_bal ratio = local_bal / total if total else 0 lnd emulator utility work
Hook this into a CI pipeline (GitHub Actions, Jenkins) to run every time you update a utility. | Pitfall | Solution | |---------|----------| | Assuming emulator matches mainnet exactly | Emulators don’t simulate propagation delays or mempool congestion. Add artificial latency using tc (Linux traffic control). | | Forgetting to renew macaroons | Utilities hardcode macaroon paths. Use environment variables LND_MACAROON_PATH . | | Using gRPC reflection incorrectly | Emulators often expose different proto versions. Always test lnd --version parity. | | Not saving channel backups during testing | Simulate lncli exportchanbackup in your utility and verify you can restore on a fresh emulator node. | Part 7: Real-World Use Case – A Utility to Auto-Close Zombie Channels Problem: A channel has had no activity for 90 days and the peer is unresponsive. exit $TEST_RESULT def check_channels(): channels = lnd