dapp_indexer/test/DappIndexer.t.sol

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.23;

import { Test, console2 } from "forge-std/Test.sol";
import { DappIndexer } from "src/DappIndexer.sol";

contract DappIndexerTest is Test {
    DappIndexer public dappIdxr;
    string[] public dappsURI;
    
    function setUp() public {
        dappIdxr = new DappIndexer(address(this), address(this));
        dappsURI = vm.envString("dapps", ' ');
    }

    function testAddDapp() public {
        bytes32 CID1;
        bytes32 CID2;

        (CID1, CID2) = stringToBytes32Pair(dappsURI[0]);

        // Add Dapp
        console2.log("Bytes32 first:");
        console2.logBytes32(CID1);
        console2.log("Bytes32 second:");
        console2.logBytes32(CID2);
        console2.log(Bytes32PairToString(CID1, CID2));
        dappIdxr.addDapp(bytes32("Dapp01"), DappIndexer.PackedCID(CID1, CID2));
        // retrive Dapp
        DappIndexer.PackedCID memory dapp1 = dappIdxr.getCID(bytes32("Dapp01"));
        assertEq(CID1, dapp1.CID1);
        assertEq(CID2, dapp1.CID2);
        string memory retrivedDappURI = Bytes32PairToString(dapp1.CID1, dapp1.CID2);
        assertEq(dappsURI[0], retrivedDappURI);
    } 

    function Bytes32PairToString(bytes32 part1, bytes32 part2) public pure returns (string memory) {
        // Concatenate the two bytes32 variables
        bytes memory concatenatedBytes = abi.encodePacked(part1, part2);

        // Truncate the concatenated bytes to 59 bytes
        bytes memory truncatedBytes = new bytes(59);
        for (uint i = 0; i < 59; i++) {
            truncatedBytes[i] = concatenatedBytes[i];
        }

        // Convert the truncated bytes to a string
        string memory str = string(truncatedBytes);

        return str;
    }

    function stringToBytes32Pair(string memory source) public pure returns (bytes32 part1, bytes32 part2) {
        bytes memory sourceBytes = bytes(source);
        require(sourceBytes.length == 59, "URI string must equal to 59 bytes");

        assembly {
            // Load the first 32 bytes of the string data
            part1 := mload(add(sourceBytes, 32))
            // Load the second 32 bytes of the string data
            part2 := mload(add(sourceBytes, 64))
        }
    }
}