How to run integration tests for 11-Beefy First run the relay chain & parachain nodes: docker run -ti -p9944:9944 -p9988:9988 -p9998:9998 composablefi/composable-sandbox:latest Then wait until you see this line: 🚀 POLKADOT LAUNCH COMPLETE 🚀 Now you can run the tests in ./11-beefy/types/update_test.go go test -test.timeout=0 -run TestCheckHeaderAndUpdateState -v You should start to see these lines: ==== connected! ==== ====== subcribed! ====== Initializing client state clientState.LatestBeefyHeight: 169 clientState.MmrRootHash: 89a2850e8b5e475980ca1ef4c145f4c5624a072d287b85f0430815d5c9b7b387 ====== successfully processed justification! ====== This means the light client is following the relay chain consensus protocol