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test: simplify symbolic tests using new halmos cheatcode #431

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test: simplify symbolic tests using new halmos cheatcode #431

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ec2c88d
test: simplify symbolic tests using new halmos cheatcode
daejunpark Sep 25, 2024
f5f6f26
ci: update halmos command
daejunpark Sep 25, 2024
8501dd6
chore: fix compiler warning
daejunpark Sep 25, 2024
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2 changes: 1 addition & 1 deletion .github/workflows/ci.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -136,7 +136,7 @@ jobs:
run: pip install halmos

- name: Run halmos
run: halmos --error-unknown --test-parallel --solver-parallel --storage-layout=generic --solver-timeout-assertion 0
run: halmos --solver-timeout-assertion 0
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coverage:
permissions:
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2 changes: 1 addition & 1 deletion lib/halmos-cheatcodes
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Submodule halmos-cheatcodes updated 1 files
+30 −7 src/SVM.sol
84 changes: 2 additions & 82 deletions test/IdRegistry/IdRegistry.symbolic.t.sol
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Expand Up @@ -39,7 +39,7 @@ contract IdRegistrySymTest is SymTest, Test {
y = svm.createAddress("y");
}

function check_Invariants_PostMigration(bytes4 selector, address caller) public {
function check_Invariants_PostMigration(address caller) public {
_assumeMigrated();
_initState();
vm.assume(x != y);
Expand All @@ -52,7 +52,7 @@ contract IdRegistrySymTest is SymTest, Test {

// Execute an arbitrary tx to IdRegistry
vm.prank(caller);
(bool success,) = address(idRegistry).call(_calldataFor(selector));
(bool success,) = address(idRegistry).call(svm.createCalldata("IdRegistry"));
vm.assume(success); // ignore reverting cases

// Record post-state
Expand Down Expand Up @@ -176,84 +176,4 @@ contract IdRegistrySymTest is SymTest, Test {
idRegistry.isMigrated() && block.timestamp > idRegistry.migratedAt() + idRegistry.gracePeriod();
vm.assume(migrationCompleted);
}

/**
* @dev Generates valid calldata for a given function selector.
*/
function _calldataFor(bytes4 selector) internal returns (bytes memory) {
bytes memory args;
if (selector == idRegistry.transfer.selector) {
args = abi.encode(svm.createAddress("to"), svm.createUint256("deadline"), svm.createBytes(65, "sig"));
} else if (selector == idRegistry.transferFor.selector) {
args = abi.encode(
svm.createAddress("from"),
svm.createAddress("to"),
svm.createUint256("fromDeadline"),
svm.createBytes(65, "fromSig"),
svm.createUint256("toDeadline"),
svm.createBytes(65, "toSig")
);
} else if (selector == idRegistry.transferAndChangeRecovery.selector) {
args = abi.encode(
svm.createAddress("to"),
svm.createAddress("recovery"),
svm.createUint256("deadline"),
svm.createBytes(65, "sig")
);
} else if (selector == idRegistry.transferAndChangeRecoveryFor.selector) {
args = abi.encode(
svm.createAddress("from"),
svm.createAddress("to"),
svm.createAddress("recovery"),
svm.createUint256("fromDeadline"),
svm.createBytes(65, "fromSig"),
svm.createUint256("toDeadline"),
svm.createBytes(65, "toSig")
);
} else if (selector == idRegistry.changeRecoveryAddressFor.selector) {
args = abi.encode(
svm.createAddress("owner"),
svm.createAddress("recovery"),
svm.createUint256("deadline"),
svm.createBytes(65, "sig")
);
} else if (selector == idRegistry.recover.selector) {
args = abi.encode(
svm.createAddress("from"),
svm.createAddress("to"),
svm.createUint256("deadline"),
svm.createBytes(65, "sig")
);
} else if (selector == idRegistry.recoverFor.selector) {
args = abi.encode(
svm.createAddress("from"),
svm.createAddress("to"),
svm.createUint256("recoveryDeadline"),
svm.createBytes(65, "recoverySig"),
svm.createUint256("toDeadline"),
svm.createBytes(65, "toSig")
);
} else if (selector == idRegistry.verifyFidSignature.selector) {
args = abi.encode(
svm.createAddress("custodyAddress"),
svm.createUint256("fid"),
svm.createBytes32("digest"),
svm.createBytes(65, "sig")
);
} else if (selector == idRegistry.bulkRegisterIds.selector) {
IIdRegistry.BulkRegisterData[] memory ids = new IIdRegistry.BulkRegisterData[](0);
args = abi.encode(ids);
} else if (selector == idRegistry.bulkRegisterIdsWithDefaultRecovery.selector) {
IIdRegistry.BulkRegisterDefaultRecoveryData[] memory ids =
new IIdRegistry.BulkRegisterDefaultRecoveryData[](0);
args = abi.encode(ids, address(0));
} else if (selector == idRegistry.bulkResetIds.selector) {
uint24[] memory ids = new uint24[](0);
args = abi.encode(ids);
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} else {
args = svm.createBytes(1024, "data");
}

return abi.encodePacked(selector, args);
}
}
105 changes: 13 additions & 92 deletions test/KeyRegistry/KeyRegistry.symbolic.t.sol
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Expand Up @@ -10,6 +10,7 @@ import {KeyRegistryHarness} from "./utils/KeyRegistryHarness.sol";
import {IdRegistry} from "../../src/IdRegistry.sol";
import {StubValidator} from "../Utils.sol";

/// @custom:halmos --default-bytes-lengths 0,32,1024,65
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contract KeyRegistrySymTest is SymTest, Test {
IdRegistry idRegistry;
address idRegistration;
Expand Down Expand Up @@ -81,7 +82,7 @@ contract KeyRegistrySymTest is SymTest, Test {
}

// Verify the KeyRegistry invariants
function check_Invariants(bytes4 selector, address caller) public {
function check_Invariants(address caller) public {
// Additional setup to cover various input states
if (svm.createBool("migrate?")) {
vm.prank(migrator);
Expand All @@ -107,8 +108,16 @@ contract KeyRegistrySymTest is SymTest, Test {
!keyRegistry.isMigrated() || block.timestamp <= keyRegistry.migratedAt() + keyRegistry.gracePeriod();

// Execute an arbitrary tx to KeyRegistry
bytes memory data = svm.createCalldata("KeyRegistry");
bytes4 selector = bytes4(data);

// Link the first argument of removeFor() to the user variable so that it can be used later in assertions
if (selector == keyRegistry.removeFor.selector) {
vm.assume(user == address(uint160(uint256(bytes32(this.slice(data, 4, 36))))));
}

vm.prank(caller);
(bool success,) = address(keyRegistry).call(mk_calldata(selector, user));
(bool success,) = address(keyRegistry).call(data);
vm.assume(success); // ignore reverting cases

// Record post-state
Expand Down Expand Up @@ -170,95 +179,7 @@ contract KeyRegistrySymTest is SymTest, Test {
}
}

// Case-splitting tactic: explicitly branching into two states: cond vs !cond
function split_cases(bool cond) internal pure {
if (cond) return;
}
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function mk_calldata(bytes4 selector, address user) internal returns (bytes memory) {
// Ignore view functions
vm.assume(selector != keyRegistry.REMOVE_TYPEHASH.selector);
vm.assume(selector != keyRegistry.VERSION.selector);
vm.assume(selector != keyRegistry.eip712Domain.selector);
vm.assume(selector != keyRegistry.gatewayFrozen.selector);
vm.assume(selector != keyRegistry.gracePeriod.selector);
vm.assume(selector != keyRegistry.guardians.selector);
vm.assume(selector != keyRegistry.idRegistry.selector);
vm.assume(selector != keyRegistry.isMigrated.selector);
vm.assume(selector != keyRegistry.keyAt.selector);
vm.assume(selector != keyRegistry.keyDataOf.selector);
vm.assume(selector != keyRegistry.keyGateway.selector);
vm.assume(selector != keyRegistry.keys.selector);
vm.assume(selector != bytes4(0x1f64222f)); // keysOf
vm.assume(selector != bytes4(0xf27995e3)); // keysOf paged
vm.assume(selector != keyRegistry.maxKeysPerFid.selector);
vm.assume(selector != keyRegistry.migratedAt.selector);
vm.assume(selector != keyRegistry.migrator.selector);
vm.assume(selector != keyRegistry.nonces.selector);
vm.assume(selector != keyRegistry.owner.selector);
vm.assume(selector != keyRegistry.paused.selector);
vm.assume(selector != keyRegistry.pendingOwner.selector);
vm.assume(selector != keyRegistry.totalKeys.selector);
vm.assume(selector != keyRegistry.validators.selector);
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// Create symbolic values to be included in calldata
uint256 fid = svm.createUint256("fid");
uint32 keyType = uint32(svm.createUint(32, "keyType"));
bytes memory key = svm.createBytes(32, "key");
uint8 metadataType = uint8(svm.createUint(8, "metadataType"));
bytes memory metadata = svm.createBytes(32, "metadata");
uint256 deadline = svm.createUint256("deadline");
bytes memory sig = svm.createBytes(65, "sig");

// Halmos requires symbolic dynamic arrays to be given with a specific size.
// In this test, we provide arrays with length 2.
IKeyRegistry.BulkAddData[] memory addData = new IKeyRegistry.BulkAddData[](2);
IKeyRegistry.BulkResetData[] memory resetData = new IKeyRegistry.BulkResetData[](2);
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// New scope, stack workaround.
{
bytes[][] memory fidKeys = new bytes[][](2);
fidKeys[0] = new bytes[](1);
fidKeys[0][0] = key;

bytes memory key2 = svm.createBytes(32, "key2");
fidKeys[1] = new bytes[](1);
fidKeys[1][0] = key2;

uint256 fid2 = svm.createUint256("fid2");

IKeyRegistry.BulkAddKey[] memory keyData1 = new IKeyRegistry.BulkAddKey[](1);
IKeyRegistry.BulkAddKey[] memory keyData2 = new IKeyRegistry.BulkAddKey[](1);
keyData1[0] = IKeyRegistry.BulkAddKey({key: key, metadata: ""});
keyData2[0] = IKeyRegistry.BulkAddKey({key: key2, metadata: ""});
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addData[0] = IKeyRegistry.BulkAddData({fid: fid, keys: keyData1});
addData[1] = IKeyRegistry.BulkAddData({fid: fid2, keys: keyData2});

resetData[0] = IKeyRegistry.BulkResetData({fid: fid, keys: fidKeys[0]});
resetData[1] = IKeyRegistry.BulkResetData({fid: fid2, keys: fidKeys[1]});
}

// Generate calldata based on the function selector
bytes memory args;
if (selector == keyRegistry.add.selector) {
// Explicitly branching based on conditions.
// Note: The negations of conditions are also taken into account.
split_cases(keyType == uint32(1) && metadataType == uint8(1));
args = abi.encode(user, keyType, key, metadataType, metadata);
} else if (selector == keyRegistry.remove.selector) {
args = abi.encode(key);
} else if (selector == keyRegistry.removeFor.selector) {
args = abi.encode(user, key, deadline, sig);
} else if (selector == keyRegistry.bulkAddKeysForMigration.selector) {
args = abi.encode(addData);
} else if (selector == keyRegistry.bulkResetKeysForMigration.selector) {
args = abi.encode(resetData);
} else {
// For functions where all parameters are static (not dynamic arrays or bytes),
// a raw byte array is sufficient instead of explicitly specifying each argument.
args = svm.createBytes(1024, "data"); // choose a size that is large enough to cover all parameters
}
return abi.encodePacked(selector, args);
function slice(bytes calldata data, uint start, uint end) external returns (bytes memory) {
return data[start:end];
}
}
14 changes: 5 additions & 9 deletions test/abstract/Guardians/Guardians.symbolic.t.sol
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Expand Up @@ -27,7 +27,7 @@ contract GuardiansSymTest is SymTest, Test {
y = svm.createAddress("y");
}

function check_Invariants(bytes4 selector, address caller) public {
function check_Invariants(address caller) public {
_initState();
vm.assume(x != owner);
vm.assume(x != y);
Expand All @@ -37,9 +37,12 @@ contract GuardiansSymTest is SymTest, Test {
bool oldGuardianX = guarded.guardians(x);
bool oldGuardianY = guarded.guardians(y);

bytes memory data = svm.createCalldata("GuardiansExample");
bytes4 selector = bytes4(data);

// Execute an arbitrary tx
vm.prank(caller);
(bool success,) = address(guarded).call(_calldataFor(selector));
(bool success,) = address(guarded).call(data);
vm.assume(success); // ignore reverting cases

// Record post-state
Expand Down Expand Up @@ -104,11 +107,4 @@ contract GuardiansSymTest is SymTest, Test {
guarded.pause();
}
}

/**
* @dev Generates valid calldata for a given function selector.
*/
function _calldataFor(bytes4 selector) internal returns (bytes memory) {
return abi.encodePacked(selector, svm.createBytes(1024, "data"));
}
}
14 changes: 5 additions & 9 deletions test/abstract/Migration/Migration.symbolic.t.sol
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Expand Up @@ -29,16 +29,19 @@ contract MigrationSymTest is SymTest, Test {
migration = new MigrationExample(gracePeriod, migrator, owner);
}

function check_Invariants(bytes4 selector, address caller) public {
function check_Invariants(address caller) public {
_initState();

// Record pre-state
uint40 oldMigratedAt = migration.migratedAt();
address oldMigrator = migration.migrator();

bytes memory data = svm.createCalldata("MigrationExample");
bytes4 selector = bytes4(data);

// Execute an arbitrary tx
vm.prank(caller);
(bool success,) = address(migration).call(_calldataFor(selector));
(bool success,) = address(migration).call(data);
vm.assume(success); // ignore reverting cases

// Record post-state
Expand Down Expand Up @@ -108,11 +111,4 @@ contract MigrationSymTest is SymTest, Test {
migration.migrate();
}
}

/**
* @dev Generates valid calldata for a given function selector.
*/
function _calldataFor(bytes4 selector) internal returns (bytes memory) {
return abi.encodePacked(selector, svm.createBytes(1024, "data"));
}
}
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