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package l1
import (
"context"
"math/big"
"testing"
"github.com/stretchr/testify/require"
"github.com/ethereum/go-ethereum"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum-optimism/optimism/op-node/rollup/derive"
"github.com/ethereum-optimism/optimism/op-program/client/l1/test"
"github.com/ethereum-optimism/optimism/op-service/eth"
"github.com/ethereum-optimism/optimism/op-service/testlog"
"github.com/ethereum-optimism/optimism/op-service/testutils"
)
var _ derive.L1Fetcher = (*OracleL1Client)(nil)
var head = blockNum(1000)
func TestInfoByHash(t *testing.T) {
client, oracle := newClient(t)
hash := common.HexToHash("0xAABBCC")
expected := &testutils.MockBlockInfo{}
oracle.Blocks[hash] = expected
info, err := client.InfoByHash(context.Background(), hash)
require.NoError(t, err)
require.Equal(t, expected, info)
}
func TestL1BlockRefByHash(t *testing.T) {
client, oracle := newClient(t)
hash := common.HexToHash("0xAABBCC")
header := &testutils.MockBlockInfo{}
oracle.Blocks[hash] = header
expected := eth.InfoToL1BlockRef(header)
ref, err := client.L1BlockRefByHash(context.Background(), hash)
require.NoError(t, err)
require.Equal(t, expected, ref)
}
func TestFetchReceipts(t *testing.T) {
client, oracle := newClient(t)
hash := common.HexToHash("0xAABBCC")
expectedInfo := &testutils.MockBlockInfo{}
expectedReceipts := types.Receipts{
&types.Receipt{},
}
oracle.Blocks[hash] = expectedInfo
oracle.Rcpts[hash] = expectedReceipts
info, rcpts, err := client.FetchReceipts(context.Background(), hash)
require.NoError(t, err)
require.Equal(t, expectedInfo, info)
require.Equal(t, expectedReceipts, rcpts)
}
func TestInfoAndTxsByHash(t *testing.T) {
client, oracle := newClient(t)
hash := common.HexToHash("0xAABBCC")
expectedInfo := &testutils.MockBlockInfo{}
expectedTxs := types.Transactions{
&types.Transaction{},
}
oracle.Blocks[hash] = expectedInfo
oracle.Txs[hash] = expectedTxs
info, txs, err := client.InfoAndTxsByHash(context.Background(), hash)
require.NoError(t, err)
require.Equal(t, expectedInfo, info)
require.Equal(t, expectedTxs, txs)
}
func TestL1BlockRefByLabel(t *testing.T) {
t.Run("Unsafe", func(t *testing.T) {
client, _ := newClient(t)
ref, err := client.L1BlockRefByLabel(context.Background(), eth.Unsafe)
require.NoError(t, err)
require.Equal(t, eth.InfoToL1BlockRef(head), ref)
})
t.Run("Safe", func(t *testing.T) {
client, _ := newClient(t)
ref, err := client.L1BlockRefByLabel(context.Background(), eth.Safe)
require.NoError(t, err)
require.Equal(t, eth.InfoToL1BlockRef(head), ref)
})
t.Run("Finalized", func(t *testing.T) {
client, _ := newClient(t)
ref, err := client.L1BlockRefByLabel(context.Background(), eth.Finalized)
require.NoError(t, err)
require.Equal(t, eth.InfoToL1BlockRef(head), ref)
})
t.Run("UnknownLabel", func(t *testing.T) {
client, _ := newClient(t)
ref, err := client.L1BlockRefByLabel(context.Background(), eth.BlockLabel("unknown"))
require.ErrorIs(t, err, ErrUnknownLabel)
require.Equal(t, eth.L1BlockRef{}, ref)
})
}
func TestL1BlockRefByNumber(t *testing.T) {
t.Run("Head", func(t *testing.T) {
client, _ := newClient(t)
ref, err := client.L1BlockRefByNumber(context.Background(), head.NumberU64())
require.NoError(t, err)
require.Equal(t, eth.InfoToL1BlockRef(head), ref)
})
t.Run("AfterHead", func(t *testing.T) {
client, _ := newClient(t)
ref, err := client.L1BlockRefByNumber(context.Background(), head.NumberU64()+1)
// Must be ethereum.NotFound error so the derivation pipeline knows it has gone past the chain head
require.ErrorIs(t, err, ethereum.NotFound)
require.Equal(t, eth.L1BlockRef{}, ref)
})
t.Run("ParentOfHead", func(t *testing.T) {
client, oracle := newClient(t)
parent := blockNum(head.NumberU64() - 1)
oracle.Blocks[parent.Hash()] = parent
ref, err := client.L1BlockRefByNumber(context.Background(), parent.NumberU64())
require.NoError(t, err)
require.Equal(t, eth.InfoToL1BlockRef(parent), ref)
})
createBlocks := func(oracle *test.StubOracle) []eth.BlockInfo {
block := head
blocks := []eth.BlockInfo{block}
for i := 0; i < 10; i++ {
block = blockNum(block.NumberU64() - 1)
oracle.Blocks[block.Hash()] = block
blocks = append(blocks, block)
}
return blocks
}
t.Run("AncestorsAccessForwards", func(t *testing.T) {
client, oracle := newClient(t)
blocks := createBlocks(oracle)
for _, block := range blocks {
ref, err := client.L1BlockRefByNumber(context.Background(), block.NumberU64())
require.NoError(t, err)
require.Equal(t, eth.InfoToL1BlockRef(block), ref)
}
})
t.Run("AncestorsAccessReverse", func(t *testing.T) {
client, oracle := newClient(t)
blocks := createBlocks(oracle)
for i := len(blocks) - 1; i >= 0; i-- {
block := blocks[i]
ref, err := client.L1BlockRefByNumber(context.Background(), block.NumberU64())
require.NoError(t, err)
require.Equal(t, eth.InfoToL1BlockRef(block), ref)
}
})
}
func newClient(t *testing.T) (*OracleL1Client, *test.StubOracle) {
stub := test.NewStubOracle(t)
stub.Blocks[head.Hash()] = head
client := NewOracleL1Client(testlog.Logger(t, log.LevelDebug), stub, head.Hash())
return client, stub
}
func blockNum(num uint64) eth.BlockInfo {
parentNum := num - 1
return &testutils.MockBlockInfo{
InfoHash: common.BytesToHash(big.NewInt(int64(num)).Bytes()),
InfoParentHash: common.BytesToHash(big.NewInt(int64(parentNum)).Bytes()),
InfoCoinbase: common.Address{},
InfoRoot: common.Hash{},
InfoNum: num,
InfoTime: num * 2,
InfoMixDigest: [32]byte{},
InfoBaseFee: nil,
InfoReceiptRoot: common.Hash{},
InfoGasUsed: 0,
}
}