From 299d1c07da607d91085f5b8fc7e28409a05e22e8 Mon Sep 17 00:00:00 2001 From: syntrust Date: Fri, 23 Aug 2024 18:45:05 +0800 Subject: [PATCH] diff test --- contracts/test/MiningLibTest.t.sol | 47 ++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 contracts/test/MiningLibTest.t.sol diff --git a/contracts/test/MiningLibTest.t.sol b/contracts/test/MiningLibTest.t.sol new file mode 100644 index 0000000..2ad8897 --- /dev/null +++ b/contracts/test/MiningLibTest.t.sol @@ -0,0 +1,47 @@ +// SPDX-License-Identifier: UNLICENSED +pragma solidity ^0.8.19; + +import "../libraries/MiningLib.sol"; +import "forge-std/Test.sol"; + +contract MiningLibTest is Test { + uint256 constant RANDOM_CHECKS = 2; + uint256 constant CUT_OFF = 7200; + uint256 constant DIFF_ADJ_DIVISOR = 32; + uint256 constant MIN_DIFF = 9437184; + + MiningLib.MiningInfo info; + + function test_CheckDiff() public { + address miner = 0x471977571aD818379E2b6CC37792a5EaC85FdE22; + uint256 minedTs = 1724243184; + uint256 lastMinedTime = 1724242128; + uint256 lastDiff = 71922272; + uint256 nonce = 870911; + bytes32 randao = 0xd2c65935c5fc39a515a0282c03ccd8a7879264ae01f697c89da2b0c6e3fa296d; + bytes32[] memory encodedSamples = new bytes32[](2); + encodedSamples[0] = 0x0c1e76b42ca04b0b349ed3e6300cc8f67bdfa16f35315acae9d53849935eb727; + encodedSamples[1] = 0x2a0b69a3663ae7ad5cf2d9da8bdfff961f5631243f5bdc337e1fd20fad5f3e2d; + + checkDiff(miner, minedTs, lastMinedTime, lastDiff, nonce, randao, encodedSamples); + } + + function checkDiff( + address _miner, + uint256 _minedTs, + uint256 _lastMinedTime, + uint256 _lastDiff, + uint256 _nonce, + bytes32 _randao, + bytes32[] memory _encodedSamples + ) public { + bytes32 hash0 = keccak256(abi.encode(_miner, _randao, _nonce)); + for (uint256 i = 0; i < RANDOM_CHECKS; i++) { + hash0 = keccak256(abi.encode(hash0, _encodedSamples[i])); + } + info = MiningLib.MiningInfo(_lastMinedTime, _lastDiff, 0); + uint256 diff = MiningLib.expectedDiff(info, _minedTs, CUT_OFF, DIFF_ADJ_DIVISOR, MIN_DIFF); + uint256 required = uint256(2 ** 256 - 1) / diff; + require(uint256(hash0) <= required, "diff not match"); + } +}