struct MarketItem {
    uint itemId;
    address nftContract;
    uint256 tokenId;
    address payable owner;
    address[] oldOwner;
    address payable creator;
    uint256[] oldPriceSold;
    uint256 price;
    bool inSell;
}

√ Should create and list an NFT (140ms)
√ Should create an NFT and remove it from sales (101ms)
√ Should create an NFT and remove it from sales and re add it to sales (185ms)
√ Should buy a nft (150ms)
√ Should not buy is own nft (134ms)
√ Should not buy a nft who is not in sell
√ Should send the right price to buy the nft (39ms)