OpenOracleGasMeasure.sol

pragma solidity ^0.5.0;

interface Oracle {
    function getUnderlyingPrice(address cToken) external view returns (uint);
}

contract Comptroller {
    Oracle public oracle;
}

contract GasMeasure {
    address public comp;
    address public cToken;
    
    constructor() public{
        comp = 0x5eAe89DC1C671724A672ff0630122ee834098657;
        cToken = 0x4a77fAeE9650b09849Ff459eA1476eaB01606C7a;
    }
    
    function measureGasCost() public view returns (uint, uint) {
        Oracle myOracle = Comptroller(comp).oracle();
        uint startingGas = gasleft();
        uint price = myOracle.getUnderlyingPrice(cToken);
        uint finishingGas = gasleft();
        
        return (startingGas - finishingGas, price);
        
    }
    
}