Error in MoodNft Testing

[heheboii11]

Here is the deployment code,

pragma solidity ^0.8.18;

import {Script} from "forge-std/Script.sol";
import {MoodNft} from "../src/MoodNft.sol";
import {Base64} from "@openzeppelin/contracts/utils/Base64.sol";

contract deployMood is Script {
    MoodNft MoodNFT;
    string s_saduri =
        "data:image/svg+xml;base64,PD94bWwgdmVyc2lvbj0iMS4wIiBzdGFuZGFsb25lPSJubyI/Pgo8c3ZnIHdpZHRoPSIxMDI0cHgiIGhlaWdodD0iMTAyNHB4IiB2aWV3Qm94PSIwIDAgMTAyNCAxMDI0IiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPgogIDxwYXRoIGZpbGw9IiMzMzMiIGQ9Ik01MTIgNjRDMjY0LjYgNjQgNjQgMjY0LjYgNjQgNTEyczIwMC42IDQ0OCA0NDggNDQ4IDQ0OC0yMDAuNiA0NDgtNDQ4Uzc1OS40IDY0IDUxMiA2NHptMCA4MjBjLTIwNS40IDAtMzcyLTE2Ni42LTM3Mi0zNzJzMTY2LjYtMzcyIDM3Mi0zNzIgMzcyIDE2Ni42IDM3MiAzNzItMTY2LjYgMzcyLTM3MiAzNzJ6Ii8+CiAgPHBhdGggZmlsbD0iI0U2RTZFNiIgZD0iTTUxMiAxNDBjLTIwNS40IDAtMzcyIDE2Ni42LTM3MiAzNzJzMTY2LjYgMzcyIDM3MiAzNzIgMzcyLTE2Ni42IDM3Mi0zNzItMTY2LjYtMzcyLTM3Mi0zNzJ6TTI4OCA0MjFhNDguMDEgNDguMDEgMCAwIDEgOTYgMCA0OC4wMSA0OC4wMSAwIDAgMS05NiAwem0zNzYgMjcyaC00OC4xYy00LjIgMC03LjgtMy4yLTguMS03LjRDNjA0IDYzNi4xIDU2Mi41IDU5NyA1MTIgNTk3cy05Mi4xIDM5LjEtOTUuOCA4OC42Yy0uMyA0LjItMy45IDcuNC04LjEgNy40SDM2MGE4IDggMCAwIDEtOC04LjRjNC40LTg0LjMgNzQuNS0xNTEuNiAxNjAtMTUxLjZzMTU1LjYgNjcuMyAxNjAgMTUxLjZhOCA4IDAgMCAxLTggOC40em0yNC0yMjRhNDguMDEgNDguMDEgMCAwIDEgMC05NiA0OC4wMSA0OC4wMSAwIDAgMSAwIDk2eiIvPgogIDxwYXRoIGZpbGw9IiMzMzMiIGQ9Ik0yODggNDIxYTQ4IDQ4IDAgMSAwIDk2IDAgNDggNDggMCAxIDAtOTYgMHptMjI0IDExMmMtODUuNSAwLTE1NS42IDY3LjMtMTYwIDE1MS42YTggOCAwIDAgMCA4IDguNGg0OC4xYzQuMiAwIDcuOC0zLjIgOC4xLTcuNCAzLjctNDkuNSA0NS4zLTg4LjYgOTUuOC04OC42czkyIDM5LjEgOTUuOCA4OC42Yy4zIDQuMiAzLjkgNy40IDguMSA3LjRINjY0YTggOCAwIDAgMCA4LTguNEM2NjcuNiA2MDAuMyA1OTcuNSA1MzMgNTEyIDUzM3ptMTI4LTExMmE0OCA0OCAwIDEgMCA5NiAwIDQ4IDQ4IDAgMSAwLTk2IDB6Ii8+Cjwvc3ZnPg==";
    string s_happyuri =
        "data:image/svg+xml;base64,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";

    function run() external returns (MoodNft) {
        MoodNFT = new MoodNft(s_saduri, s_happyuri);
        return MoodNFT;
    }

    function SvgtoUri(string memory Svg) public pure returns (string memory) {
        string memory baseUri = "data:application/json;base64,";
        string memory SvgbasedUri = Base64.encode(
            bytes(string(abi.encodePacked(Svg)))
        );
        return string(abi.encodePacked(baseUri, SvgbasedUri));
    }
}

Here is the test code

pragma solidity ^0.8.18;

import {Test} from "forge-std/Test.sol";
import "forge-std/console.sol";
import {deployMood} from "../script/deployMoodNft.s.sol";

contract DeployMoodtest is Test {
    deployMood deploymood;

    function setUp() public {
        deploymood = new deployMood();
    }

    function testSvgtoUri() public view {
        string
            memory expectedUri = "data:application/json;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIiB3aWR0aD0iNTAwIiBoZWlnaHQ9IjUwMCI+Cjx0ZXh0IHg9IjAiIHk9IjE1IiBmaWxsPSJibGFjayI+SGkhIFlvdXIgYnJvd3NlciBkZWNvZGVkIHRoaXM8L3RleHQ+Cjwvc3ZnPg==";
        string
            memory SvgUri = '<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="500" height="500"><text x="0" y="15" fill="black">Hi! Your browser decoded this</text></svg>';
        string memory ActualUri = deploymood.SvgtoUri(SvgUri);
        console.log(ActualUri);
        assert(
            keccak256(abi.encodePacked(ActualUri)) ==
                keccak256(abi.encodePacked(expectedUri))
        );
    }
}
```     here is the error I am facing 

Ran 1 test for test/DeployMood.t.sol:DeployMoodtest
[FAIL. Reason: panic: assertion failed (0x01)] testSvgtoUri() (gas: 30529)
Logs:
data:application/json;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIiB3aWR0aD0iNTAwIiBoZWlnaHQ9IjUwMCI+PHRleHQgeD0iMCIgeT0iMTUiIGZpbGw9ImJsYWNrIj5IaSEgWW91ciBicm93c2VyIGRlY29kZWQgdGhpczwvdGV4dD48L3N2Zz4=

Traces:
[3069599] DeployMoodtest::setUp()
├─ [3013076] → new deployMood@0x5615dEB798BB3E4dFa0139dFa1b3D433Cc23b72f
│ └─ ← 10115 bytes of code
└─ ← ()

[30529] DeployMoodtest::testSvgtoUri()
├─ [17779] deployMood::SvgtoUri("<svg xmlns="http://www.w3.org/2000/svg\" xmlns:xlink="http://www.w3.org/1999/xlink\" width="500" height="500"><text x="0" y="15" fill="black">Hi! Your browser decoded this") [staticcall]
│ └─ ← "data:application/json;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIiB3aWR0aD0iNTAwIiBoZWlnaHQ9IjUwMCI+PHRleHQgeD0iMCIgeT0iMTUiIGZpbGw9ImJsYWNrIj5IaSEgWW91ciBicm93c2VyIGRlY29kZWQgdGhpczwvdGV4dD48L3N2Zz4="
├─ [0] console::log("data:application/json;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIiB3aWR0aD0iNTAwIiBoZWlnaHQ9IjUwMCI+PHRleHQgeD0iMCIgeT0iMTUiIGZpbGw9ImJsYWNrIj5IaSEgWW91ciBicm93c2VyIGRlY29kZWQgdGhpczwvdGV4dD48L3N2Zz4=") [staticcall]
│ └─ ← ()
└─ ← panic: assertion failed (0x01)

Test result: FAILED. 0 passed; 1 failed; 0 skipped; finished in 6.93ms

Ran 1 test suite in 6.93ms: 0 tests passed, 1 failed, 0 skipped (1 total tests)

Failing tests:
Encountered 1 failing test in test/DeployMood.t.sol:DeployMoodtest
[FAIL. Reason: panic: assertion failed (0x01)] testSvgtoUri() (gas: 30529)

Encountered a total of 1 failing tests, 0 tests succeeded ```

[EngrPips]

Hello @heheboii11, Please set the string below as your expectedUri, then re-run the test and see if it fails again.

data:application/json;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHhtbG5zOnhsaW5rPSJodHRwOi8vd3d3LnczLm9yZy8xOTk5L3hsaW5rIiB3aWR0aD0iNTAwIiBoZWlnaHQ9IjUwMCI+PHRleHQgeD0iMCIgeT0iMTUiIGZpbGw9ImJsYWNrIj5IaSEgWW91ciBicm93c2VyIGRlY29kZWQgdGhpczwvdGV4dD48L3N2Zz4=

[heheboii11]

It has been solved but what is the reason ? As I have converted it from my terminal and pasted it to the test file

[EngrPips]

Base64 Encoding is strictly sensitive, so any slight change in the data you encode will change the output you get. So, one way or the other, the data you encoded differs from what Patrick encoded, so his expectedUri wouldn't work for you.