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Helpers.sol
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Helpers.sol
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import "./HEVMHelpers.sol";
import "./HEVMState.sol";
import "./extensions/Governance.sol";
import "./extensions/Time.sol";
import "./extensions/Tokens.sol";
interface Hevm {
function warp(uint) external;
function roll(uint) external;
function store(address,bytes32,bytes32) external;
function load(address,bytes32) external;
}
// example usage
// contract TestMyContract is TestHelper {
// function test_mytestfunction() public {...}
// }
//
contract TestHelper is TimeExtensions, GovernanceExtensions, TokenExtensions, HEVMHelpers, HEVMState {
// In a passing test, expect a revert with a string (takes a function signature and args and nonpayable)
function expect_revert_with(
address who,
string memory sig,
bytes memory args,
string memory revert_string
)
public
{
bytes memory calld = abi.encodePacked(helper.sigs(sig), args);
(bool success, bytes memory ret) = who.call(calld);
assertTrue(!success);
string memory ret_revert_string = abi.decode(slice(5, ret.length, ret), (string));
assertEq(ret_revert_string, revert_string);
}
// In a passing test, expect a revert with a string (takes a function signature and args and *is* payable)
function expect_revert_with(
address who,
string memory sig,
bytes memory args,
uint256 value,
string memory revert_string
)
public
{
bytes memory calld = abi.encodePacked(helper.sigs(sig), args);
(bool success, bytes memory ret) = who.call.value(value)(calld);
assertTrue(!success);
string memory ret_revert_string = abi.decode(slice(5, ret.length, ret), (string));
assertEq(ret_revert_string, revert_string);
}
// pass as a 4byte function signature instead
function expect_revert_with(
address who,
bytes4 sig,
bytes memory args,
string memory revert_string
)
public
{
bytes memory calld = abi.encodePacked(sig, args);
(bool success, bytes memory ret) = who.call(calld);
assertTrue(!success);
string memory ret_revert_string = abi.decode(slice(5, ret.length, ret), (string));
assertEq(ret_revert_string, revert_string);
}
}