core/test/mocks/MockFollowModuleWithRevertFlag.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.15;

import {IFollowModule} from 'contracts/interfaces/IFollowModule.sol';

/**
 * @dev This is a simple mock follow module to be used for testing revert cases on processFollow.
 */
contract MockFollowModuleWithRevertFlag is IFollowModule {
    error MockFollowModuleReverted();

    function initializeFollowModule(
        uint256, /* profileId */
        address, /* executor */
        bytes calldata /* data */
    ) external pure override returns (bytes memory) {
        return new bytes(0);
    }

    function processFollow(
        uint256, /* followerProfileId */
        uint256, /* followTokenId */
        address, /* executor */
        uint256, /* profileId */
        bytes calldata data
    ) external pure override {
        if (abi.decode(data, (bool))) {
            revert MockFollowModuleReverted();
        }
    }
}