-
Notifications
You must be signed in to change notification settings - Fork 492
Expand file tree
/
Copy pathBlockHashLib.t.sol
More file actions
186 lines (161 loc) · 7.75 KB
/
Copy pathBlockHashLib.t.sol
File metadata and controls
186 lines (161 loc) · 7.75 KB
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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;
import "./utils/SoladyTest.sol";
import {BlockHashLib} from "../src/utils/BlockHashLib.sol";
import {LibRLP} from "../src/utils/LibRLP.sol";
contract BlockHashLibTest is SoladyTest {
using LibRLP for *;
struct BlockHeader {
bytes32 parentHash;
bytes32 ommersHash;
bytes20 beneficiary;
bytes32 stateRoot;
bytes32 transactionsRoot;
bytes32 receiptsRoot;
bytes32[8] logsBloom;
bytes32 difficultyOrPrevrandao;
uint256 number;
uint256 gasLimit;
uint256 gasUsed;
uint256 timestamp;
bytes extraData;
bytes32 mixHash;
bytes8 nonce;
}
uint256 internal startingBlock;
address internal constant SYSTEM_ADDRESS = 0xffffFFFfFFffffffffffffffFfFFFfffFFFfFFfE;
bytes private constant _HISTORY_STORAGE_BYTECODE =
hex"3373fffffffffffffffffffffffffffffffffffffffe14604657602036036042575f35600143038111604257611fff81430311604257611fff9006545f5260205ff35b5f5ffd5b5f35611fff60014303065500";
// cast block 23270177 --raw
// vm.getRawBlockHeader(23270177)
bytes private constant _ETH_BLOCK_23270177 =
hex"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";
// keccak256(_ETH_BLOCK_23270177)
bytes32 private constant _ETH_BLOCK_HASH_23270177 =
0x5def79dc43d588fafa396f3fbf0bcfb9bf83eaf8003f4508a626b6d3e806b29f;
function testBlockHash(
uint256 simulationBlockNumber,
uint256 queryBlockNumber,
uint256 savedBlockedNumber,
bytes32 hashToSave
) public {
if (_randomChance(2)) {
vm.etch(BlockHashLib.HISTORY_STORAGE_ADDRESS, _HISTORY_STORAGE_BYTECODE);
}
savedBlockedNumber = _bound(savedBlockedNumber, 0, 2 ** 64 - 1);
simulationBlockNumber = _bound(simulationBlockNumber, 0, 2 ** 64 - 1);
vm.roll(savedBlockedNumber + 1);
vm.prank(SYSTEM_ADDRESS);
(bool success,) = BlockHashLib.HISTORY_STORAGE_ADDRESS.call(abi.encode(hashToSave));
require(success);
vm.setBlockhash(savedBlockedNumber, hashToSave);
vm.roll(simulationBlockNumber);
assertEq(BlockHashLib.blockHash(queryBlockNumber), _blockHash(queryBlockNumber));
// Some random comment to trigger the CI via a visible diff. 3287623879676
}
function testBlockHashOfOverflowingQuery(uint256 simulationBlockNumber, uint256 offset) public {
if (_randomChance(2)) {
vm.etch(BlockHashLib.HISTORY_STORAGE_ADDRESS, _HISTORY_STORAGE_BYTECODE);
}
vm.roll(_bound(simulationBlockNumber, 0, 2 ** 64 - 1));
assertEq(BlockHashLib.blockHash(type(uint256).max - _bound(offset, 0, 255)), 0);
}
function _blockHash(uint256 blockNumber) internal view returns (bytes32) {
(bool success, bytes memory result) =
address(this).staticcall(abi.encodeWithSignature("blockHash(uint256)", blockNumber));
if (!success) return 0;
return abi.decode(result, (bytes32));
}
function blockHash(uint256 blockNumber) public view returns (bytes32 result) {
if (block.number <= blockNumber + 256) return blockhash(blockNumber);
address a = BlockHashLib.HISTORY_STORAGE_ADDRESS;
if (a.code.length == 0) return 0;
/// @solidity memory-safe-assembly
assembly {
mstore(0x20, blockNumber)
mstore(0x00, 0)
pop(staticcall(gas(), a, 0x20, 0x20, 0x00, 0x20))
result := mload(0x00)
}
}
function testVerifyBlock() public {
vm.roll(23270177 + 1);
vm.setBlockhash(23270177, _ETH_BLOCK_HASH_23270177);
assertEq(this.verifyBlock(_ETH_BLOCK_23270177, 23270177), _ETH_BLOCK_HASH_23270177);
}
function verifyBlock(bytes calldata blockHeader, uint256 blockNumber)
public
view
returns (bytes32)
{
return BlockHashLib.verifyBlock(blockHeader, blockNumber);
}
function _randomBlockHeader() internal returns (BlockHeader memory b, bytes memory encoded) {
if (_randomChance(2)) {
b.parentHash = bytes32(_random());
b.ommersHash = bytes32(_random());
b.beneficiary = bytes20(bytes32(_random()));
b.stateRoot = bytes32(_random());
b.transactionsRoot = bytes32(_random());
b.receiptsRoot = bytes32(_random());
}
if (_randomChance(2)) {
for (uint256 i; i < 8; ++i) {
b.logsBloom[i] = bytes32(_random());
}
}
if (_randomChance(2)) {
b.difficultyOrPrevrandao = bytes32(_random());
b.number = _random();
b.gasLimit = _random();
b.gasUsed = _random();
b.timestamp = _random();
b.extraData = _truncateBytes(_randomBytes(), 32);
b.mixHash = bytes32(_random());
b.nonce = bytes8(bytes32(_random()));
}
LibRLP.List memory l;
l.p(abi.encodePacked(b.parentHash));
l.p(abi.encodePacked(b.ommersHash));
l.p(abi.encodePacked(b.beneficiary));
l.p(abi.encodePacked(b.stateRoot));
l.p(abi.encodePacked(b.transactionsRoot));
l.p(abi.encodePacked(b.receiptsRoot));
l.p(abi.encodePacked(b.logsBloom));
l.p(abi.encodePacked(b.difficultyOrPrevrandao));
l.p(b.number);
l.p(b.gasLimit);
l.p(b.gasUsed);
l.p(b.timestamp);
l.p(b.extraData);
l.p(abi.encodePacked(b.mixHash));
l.p(abi.encodePacked(b.nonce));
encoded = l.encode();
}
function testToShortHeader(bytes32) public {
(BlockHeader memory b, bytes memory encoded) = _randomBlockHeader();
BlockHashLib.ShortHeader memory s =
this.toShortHeader(_truncateBytes(_randomBytes(), 128), encoded);
assertEq(s.parentHash, b.parentHash);
assertEq(s.stateRoot, b.stateRoot);
assertEq(s.transactionsRoot, b.transactionsRoot);
assertEq(s.receiptsRoot, b.receiptsRoot);
for (uint256 i; i < 8; ++i) {
assertEq(s.logsBloom[i], b.logsBloom[i]);
}
}
function toShortHeader(bytes calldata, bytes calldata encodedHeader)
public
view
returns (BlockHashLib.ShortHeader memory result)
{
_misalignFreeMemoryPointer();
_brutalizeMemory();
result = BlockHashLib.toShortHeader(encodedHeader);
_checkMemory();
}
function testRandomBlockHeader(bytes32) public {
(, bytes memory encoded) = _randomBlockHeader();
assertEq(uint8(bytes1(encoded[0])), 0xf9);
}
}