aave-protocol-v2/contracts/mocks/upgradeability/MockVariableDebtToken.sol

// SPDX-License-Identifier: agpl-3.0
pragma solidity ^0.6.8;

import {VariableDebtToken} from '../../tokenization/VariableDebtToken.sol';
import {LendingPool} from '../../lendingpool/LendingPool.sol';

contract MockVariableDebtToken is VariableDebtToken {
  constructor(
    address _pool,
    address _underlyingAssetAddress,
    string memory _tokenName,
    string memory _tokenSymbol,
    address incentivesController
  )
    public
    VariableDebtToken(
      _pool,
      _underlyingAssetAddress,
      _tokenName,
      _tokenSymbol,
      incentivesController
    )
  {}

  function getRevision() internal override pure returns (uint256) {
    return 0x2;
  }
}