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fix: Add Hardhat test suite for ListingRegistry.sol #8

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fix: Add Hardhat test suite for ListingRegistry.sol #8

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23 changes: 23 additions & 0 deletions fix_3.py
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// contracts/ListingRegistry.sol
pragma solidity ^0.8.0;

import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";

contract ListingRegistry {
mapping(address => bool) public sellers;
mapping(uint256 => string) public listingMetadata;

function isValidSignature(bytes32 hash, bytes memory signature) public view returns (bool) {
address signer = ECDSA.recover(hash, signature);
return sellers[signer];
}

function addSeller(address seller) public {
sellers[seller] = true;
}

function createListing(uint256 listingId, string memory metadata, bytes memory signature) public {
require(isValidSignature(keccak256(abi.encodePacked(listingId, metadata)), signature), "Invalid signature");
listingMetadata[listingId] = metadata;
}
}