UUPS proxy smart contract

[18121A05L2]

Proxy contract

contract TwitterProxy is ERC1967Proxy {
    constructor(address implementation, bytes memory _data) payable ERC1967Proxy(implementation, _data) {
        ERC1967Utils.changeAdmin(msg.sender);
    }
}

This was the test i was using

   function testProxyOwner() public view {
      bytes32 constant ADMIN_SLOT = bytes32(uint256(keccak256("eip1967.proxy.admin")) - 1);
        bytes32 ownerAddressInBytes32 = vm.load(address(twitterProxy), ADMIN_SLOT);
        address ownerAddress = address(uint160(uint256(ownerAddressInBytes32)));
        assertEq(ownerAddress, deployedWithAccount);
    }

i was deploying using foundry and have given anvil first private key which has public address as - 0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266 , but i was getting the adminAddress as this - 0x1804c8AB1F12E6bbf3894d4083f33e07309d1f38 , which i came to know the Foundry default sender

i don't know why i was seeing difference in the admin address as i was setting it with the msg.sender in the constructor

[EngrPips]

Hello @18121A05L2, any transaction in your script which is not wrapped inside vm.startBroadcast() and vm.stopBroadcast() will be sent by the Foundry default sender address which is 0x1804c8AB1F12E6bbf3894d4083f33e07309d1f38 so to prevent the Foundry default sender from being the msg.sender wrap the line that deploys the contract inside vm.startBroadcast() and vm.stopBroadcast() and pass the private key of the address you want to use as the sender inside vm.startBroadcast() like this vm.startBroadcast(privateKey)