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Added hevm.sol #21

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26 changes: 26 additions & 0 deletions src/hevm.sol
Original file line number Diff line number Diff line change
@@ -0,0 +1,26 @@
// SPDX-License-Identifier: GPL-3.0-or-later

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.

pragma solidity >=0.4.23;

interface Hevm {
function warp(uint256 x) external;
function roll(uint256 x) external;
function store(address c,bytes32 loc,bytes32 val) external;
function load(address c,bytes32 loc) external returns (bytes32 val);
function sign(uint256 sk,bytes32 digest) external returns (uint8 v, bytes32 r, bytes32 s);
function addr(uint256 sk) external returns (address addr);
function ffi(string[] calldata) external returns (bytes memory);
}
4 changes: 4 additions & 0 deletions src/test.sol
Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,8 @@

pragma solidity >=0.4.23;

import "./hevm.sol";

contract DSTest {
event log (string);
event logs (bytes);
Expand All @@ -40,6 +42,8 @@ contract DSTest {

address constant HEVM_ADDRESS =
address(bytes20(uint160(uint256(keccak256('hevm cheat code')))));

Hevm public hevm = Hevm(HEVM_ADDRESS);

modifier mayRevert() { _; }
modifier testopts(string memory) { _; }
Expand Down