codex-contracts-eth/contracts/FuzzMarketplace.sol

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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "./TestToken.sol";
import "./Marketplace.sol";
contract FuzzMarketplace is Marketplace {
constructor()
Marketplace(
new TestToken(),
MarketplaceConfig(CollateralConfig(10, 5, 3, 10), ProofConfig(10, 5, 64))
)
// solhint-disable-next-line no-empty-blocks
{
}
// Properties to be tested through fuzzing
MarketplaceTotals private _lastSeenTotals;
function neverDecreaseTotals() public {
assert(_marketplaceTotals.received >= _lastSeenTotals.received);
assert(_marketplaceTotals.sent >= _lastSeenTotals.sent);
_lastSeenTotals = _marketplaceTotals;
}
function neverLoseFunds() public view {
uint256 total = _marketplaceTotals.received - _marketplaceTotals.sent;
assert(token.balanceOf(address(this)) >= total);
}
}