lotus/itests/eth_block_hash_test.go

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package itests
import (
"context"
"fmt"
"strings"
"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))
for i := 1; i <= int(head.Height()); i++ {
hex := fmt.Sprintf("0x%x", i)
ethBlockA, err := n2.EthGetBlockByNumber(ctx, hex, true)
// Cannot use static ErrFullRound error for comparison since it gets reserialized as a JSON RPC error.
if err != nil && strings.Contains(err.Error(), "null round") {
continue
}
require.NoError(t, err)
ethBlockB, err := n2.EthGetBlockByHash(ctx, ethBlockA.Hash, true)
require.NoError(t, err)
require.Equal(t, ethBlockA, ethBlockB)
}
}