// SPDX-License-Identifier: MIT
pragma solidity 0.6.6;

import "../interfaces/AggregatorValidatorInterface.sol";

contract AggregatorValidatorMock is AggregatorValidatorInterface {
  uint256 public previousRoundId;
  int256 public previousAnswer;
  uint256 public currentRoundId;
  int256 public currentAnswer;

  event Validated(
    uint256 _previousRoundId,
    int256 indexed _previousAnswer,
    uint256 _currentRoundId,
    int256 indexed _currentAnswer
  );

  function validate(
    uint256 _previousRoundId,
    int256 _previousAnswer,
    uint256 _currentRoundId,
    int256 _currentAnswer
  )
    external
    override
    returns (bool)
  {
    emit Validated(
      _previousRoundId,
      _previousAnswer,
      _currentRoundId,
      _currentAnswer
    );
    return true;
  }

}