1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
package test
import (
"testing"
"github.com/ethereum-optimism/optimism/op-service/eth"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
)
type StubOracle struct {
t *testing.T
// Blocks maps block hash to eth.BlockInfo
Blocks map[common.Hash]eth.BlockInfo
// Txs maps block hash to transactions
Txs map[common.Hash]types.Transactions
// Rcpts maps Block hash to receipts
Rcpts map[common.Hash]types.Receipts
// Blobs maps indexed blob hash to l1 block ref to blob
Blobs map[eth.L1BlockRef]map[eth.IndexedBlobHash]*eth.Blob
// PcmpResults maps hashed input to the results of precompile calls
PcmpResults map[common.Hash][]byte
}
func NewStubOracle(t *testing.T) *StubOracle {
return &StubOracle{
t: t,
Blocks: make(map[common.Hash]eth.BlockInfo),
Txs: make(map[common.Hash]types.Transactions),
Rcpts: make(map[common.Hash]types.Receipts),
Blobs: make(map[eth.L1BlockRef]map[eth.IndexedBlobHash]*eth.Blob),
PcmpResults: make(map[common.Hash][]byte),
}
}
func (o StubOracle) HeaderByBlockHash(blockHash common.Hash) eth.BlockInfo {
info, ok := o.Blocks[blockHash]
if !ok {
o.t.Fatalf("unknown block %s", blockHash)
}
return info
}
func (o StubOracle) TransactionsByBlockHash(blockHash common.Hash) (eth.BlockInfo, types.Transactions) {
txs, ok := o.Txs[blockHash]
if !ok {
o.t.Fatalf("unknown txs %s", blockHash)
}
return o.HeaderByBlockHash(blockHash), txs
}
func (o StubOracle) ReceiptsByBlockHash(blockHash common.Hash) (eth.BlockInfo, types.Receipts) {
rcpts, ok := o.Rcpts[blockHash]
if !ok {
o.t.Fatalf("unknown rcpts %s", blockHash)
}
return o.HeaderByBlockHash(blockHash), rcpts
}
func (o StubOracle) GetBlob(ref eth.L1BlockRef, blobHash eth.IndexedBlobHash) *eth.Blob {
blobMap, ok := o.Blobs[ref]
if !ok {
o.t.Fatalf("unknown blob ref %s", ref)
}
blob, ok := blobMap[blobHash]
if !ok {
o.t.Fatalf("unknown blob hash %s %d", blobHash.Hash, blobHash.Index)
}
return blob
}
func (o StubOracle) Precompile(addr common.Address, input []byte) ([]byte, bool) {
result, ok := o.PcmpResults[crypto.Keccak256Hash(append(addr.Bytes(), input...))]
if !ok {
o.t.Fatalf("unknown kzg point evaluation %x", input)
}
return result, true
}