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Add assertRevert #26

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Add assertRevert #26

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25 changes: 25 additions & 0 deletions src/test.sol
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Original file line number Diff line number Diff line change
Expand Up @@ -431,4 +431,29 @@ contract DSTest {
assertEq0(a, b);
}
}
function assertRevert(address target, bytes memory data, string memory expectedMessage) internal {
assertRevert(target, data, 0, expectedMessage);
}
function assertRevert(address target, bytes memory data, uint256 value, string memory expectedMessage) internal {
bool succeeded;
bytes memory response;
(succeeded, response) = target.call{value:value}(data);
if (succeeded) {
emit log("Error: call not reverted");
fail();
} else {
string memory message;
assembly {
let size := mload(add(response, 0x44))
message := mload(0x40)
mstore(message, size)
mstore(0x40, add(message, and(add(add(size, 0x20), 0x1f), not(0x1f))))
returndatacopy(add(message, 0x20), 0x44, size)
}
if (keccak256(abi.encodePacked(message)) != keccak256(abi.encodePacked(expectedMessage))) {
emit log("Error: revert message not satisfied");
fail();
}
}
}
}