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
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
package test
import (
"testing"
"github.com/ethereum-optimism/optimism/op-service/eth"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/ethdb"
)
// Same as l2.StateOracle but need to use our own copy to avoid dependency loops
type stateOracle interface {
NodeByHash(nodeHash common.Hash) []byte
CodeByHash(codeHash common.Hash) []byte
}
type StubBlockOracle struct {
t *testing.T
Blocks map[common.Hash]*types.Block
Outputs map[common.Hash]eth.Output
stateOracle
}
func NewStubOracle(t *testing.T) (*StubBlockOracle, *StubStateOracle) {
stateOracle := NewStubStateOracle(t)
blockOracle := StubBlockOracle{
t: t,
Blocks: make(map[common.Hash]*types.Block),
Outputs: make(map[common.Hash]eth.Output),
stateOracle: stateOracle,
}
return &blockOracle, stateOracle
}
func NewStubOracleWithBlocks(t *testing.T, chain []*types.Block, outputs []eth.Output, db ethdb.Database) *StubBlockOracle {
blocks := make(map[common.Hash]*types.Block, len(chain))
for _, block := range chain {
blocks[block.Hash()] = block
}
o := make(map[common.Hash]eth.Output, len(outputs))
for _, output := range outputs {
o[common.Hash(eth.OutputRoot(output))] = output
}
return &StubBlockOracle{
t: t,
Blocks: blocks,
Outputs: o,
stateOracle: &KvStateOracle{t: t, Source: db},
}
}
func (o StubBlockOracle) BlockByHash(blockHash common.Hash) *types.Block {
block, ok := o.Blocks[blockHash]
if !ok {
o.t.Fatalf("requested unknown block %s", blockHash)
}
return block
}
func (o StubBlockOracle) OutputByRoot(root common.Hash) eth.Output {
output, ok := o.Outputs[root]
if !ok {
o.t.Fatalf("requested unknown output root %s", root)
}
return output
}
// KvStateOracle loads data from a source ethdb.KeyValueStore
type KvStateOracle struct {
t *testing.T
Source ethdb.KeyValueStore
}
func NewKvStateOracle(t *testing.T, db ethdb.KeyValueStore) *KvStateOracle {
return &KvStateOracle{
t: t,
Source: db,
}
}
func (o *KvStateOracle) NodeByHash(nodeHash common.Hash) []byte {
val, err := o.Source.Get(nodeHash.Bytes())
if err != nil {
o.t.Fatalf("error retrieving node %v: %v", nodeHash, err)
}
return val
}
func (o *KvStateOracle) CodeByHash(hash common.Hash) []byte {
return rawdb.ReadCode(o.Source, hash)
}
func NewStubStateOracle(t *testing.T) *StubStateOracle {
return &StubStateOracle{
t: t,
Data: make(map[common.Hash][]byte),
Code: make(map[common.Hash][]byte),
}
}
// StubStateOracle is a StateOracle implementation that reads from simple maps
type StubStateOracle struct {
t *testing.T
Data map[common.Hash][]byte
Code map[common.Hash][]byte
}
func (o *StubStateOracle) NodeByHash(nodeHash common.Hash) []byte {
data, ok := o.Data[nodeHash]
if !ok {
o.t.Fatalf("no value for node %v", nodeHash)
}
return data
}
func (o *StubStateOracle) CodeByHash(hash common.Hash) []byte {
data, ok := o.Code[hash]
if !ok {
o.t.Fatalf("no value for code %v", hash)
}
return data
}
type StubKZGOracle struct {
t *testing.T
PtEvals map[common.Hash]bool
Calls int
}
func (o *StubKZGOracle) KZGPointEvaluation(input []byte) bool {
result, ok := o.PtEvals[crypto.Keccak256Hash(input)]
if !ok {
o.t.Fatalf("no value for point evaluation %v", input)
}
o.Calls++
return result
}