temp mock pol

[rezzmah]

// SPDX-License-Identifier: MIT
pragma solidity 0.8.26;

import "./ValidatorRegistry.sol";

/// @title SimplePoLDistributor
/// @notice Simple mock PoL distributor for testing bera-reth
/// @dev Updated to interact with ValidatorRegistry to test multi-contract state changes
contract SimplePoLDistributor {
    /// @notice System address that can call distributeFor (execution layer client)
    address private constant SYSTEM_ADDRESS = 0xffffFFFfFFffffffffffffffFfFFFfffFFFfFFfE;
    
    /// @notice The validator registry contract address (hardcoded for genesis deployment)
    ValidatorRegistry private constant VALIDATOR_REGISTRY = ValidatorRegistry(0x4200000000000000000000000000000000000043);
    
    /// @notice Event emitted when distributeFor is called
    event PoLDistributed(bytes pubkey);
    
    /// @notice Counter for total distributions
    uint256 public totalDistributions;
    
    /// @notice Error thrown when caller is not the system address
    error NotSystemAddress();
    
    /// @dev Modifier to restrict function access to system address.
    /// @dev This ensures only the execution layer client can call `distributeFor` function.
    modifier onlySystemCall() {
        if (msg.sender != SYSTEM_ADDRESS) {
            revert NotSystemAddress();
        }
        _;
    }
    
    /// @notice Main function that bera-reth will call
    /// @param pubkey The validator public key
    /// @dev Now calls the ValidatorRegistry to test multi-contract state changes
    function distributeFor(bytes calldata pubkey) external onlySystemCall {
        require(totalDistributions < 10, "Max distributions reached");
        // Update state in this contract
        totalDistributions++;
        
        // Call another contract to update its state
        // This tests whether system calls properly capture state changes from multiple contracts
        VALIDATOR_REGISTRY.recordValidatorActivity(pubkey);
        
        emit PoLDistributed(pubkey);
    }
}


// SPDX-License-Identifier: MIT
pragma solidity 0.8.26;

/// @title ValidatorRegistry
/// @notice A simple registry contract that increments a counter when called
/// @dev This contract will be called by SimplePoLDistributor to test multi-contract state changes
contract ValidatorRegistry {
    /// @notice Simple counter that increments on each call
    uint256 public callCount;
    
    /// @notice Event emitted when the contract is called
    event RegistryCalled(uint256 newCount);
    
    /// @notice Records activity - simply increments counter and emits event
    function recordValidatorActivity(bytes calldata /* pubkey */) external {
        callCount++;
        emit RegistryCalled(callCount);
    }
}

[calbera]

@rezbera can you add the contract solidity source code in the contracts/src folder ? And then we should merge this

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 60.74%. Comparing base (344c4bd) to head (6009eca).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2868      +/-   ##
==========================================
+ Coverage   60.70%   60.74%   +0.03%     
==========================================
  Files         354      354              
  Lines       16647    16647              
==========================================
+ Hits        10106    10112       +6     
+ Misses       5752     5747       -5     
+ Partials      789      788       -1     

see 3 files with indirect coverage changes

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[calbera]

Can probably close #2843 once this is resolved.

[rezzmah]

superced by #2878