package itests import ( "context" "fmt" "testing" "time" "github.com/stretchr/testify/require" "github.com/filecoin-project/go-state-types/abi" "github.com/filecoin-project/lotus/itests/kit" ) // TestEthBlockHashesCorrect_MultiBlockTipset validates that blocks retrieved through // EthGetBlockByNumber are identical to blocks retrieved through // EthGetBlockByHash, when using the block hash returned by the former. // // Specifically, it checks the system behaves correctly with multiblock tipsets. // // Catches regressions around https://github.com/filecoin-project/lotus/issues/10061. func TestEthBlockHashesCorrect_MultiBlockTipset(t *testing.T) { // miner is connected to the first node, and we want to observe the chain // from the second node. blocktime := 100 * time.Millisecond n1, m1, m2, ens := kit.EnsembleOneTwo(t, kit.MockProofs(), kit.ThroughRPC(), ) ens.InterconnectAll().BeginMining(blocktime) ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second) n1.WaitTillChain(ctx, kit.HeightAtLeast(abi.ChainEpoch(25))) defer cancel() var n2 kit.TestFullNode ens.FullNode(&n2, kit.ThroughRPC()).Start().Connect(n2, n1) // find the first tipset where all miners mined a block. ctx, cancel = context.WithTimeout(context.Background(), 1*time.Minute) n2.WaitTillChain(ctx, kit.BlocksMinedByAll(m1.ActorAddr, m2.ActorAddr)) defer cancel() head, err := n2.ChainHead(context.Background()) require.NoError(t, err) // let the chain run a little bit longer to minimise the chance of reorgs n2.WaitTillChain(ctx, kit.HeightAtLeast(head.Height()+50)) head, err = n2.ChainHead(context.Background()) require.NoError(t, err) for i := 1; i <= int(head.Height()); i++ { hex := fmt.Sprintf("0x%x", i) ethBlockA, err := n2.EthGetBlockByNumber(ctx, hex, true) require.NoError(t, err) ethBlockB, err := n2.EthGetBlockByHash(ctx, ethBlockA.Hash, true) require.NoError(t, err) require.Equal(t, ethBlockA, ethBlockB) } }