Add test code

contracts/ThreesixtyRouter02.sol

@@ -15,6 +15,8 @@ import "./interfaces/IBacker.sol";
 import "./Recorder.sol";
 import "./Vault.sol";
 
+import "hardhat/console.sol";
+
 contract ThreesixtyRouter02 is IThreesixtyRouter02 {
   using SafeMath for uint256;
 
@@ -270,6 +272,13 @@ contract ThreesixtyRouter02 is IThreesixtyRouter02 {
     for (uint256 i = 0; i < order; i++) {
       resultHash = keccak256(abi.encodePacked(resultHash,recorder.roundTxHashes(round, i)));
     }
+
+    console.log("txHash");
+    console.logBytes32(recorder.roundTxHashes(round, order));
+
+    console.log("proofHash");
+    console.logBytes32(resultHash);
+
     require(
       recorder.roundTxHashes(round, order) != txHash || proofHash != resultHash || recorder.skippedTxHashes(txHash),
       "360Router: No trace!!"

contracts/libraries/UniswapV2Library.sol

@@ -1,6 +1,7 @@
 pragma solidity >=0.5.0;
 
 import '@uniswap/v2-core/contracts/interfaces/IUniswapV2Pair.sol';
+import '@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol';
 
 import "./SafeMath.sol";
 
@@ -23,14 +24,8 @@ library UniswapV2Library {
     }
 
     // calculates the CREATE2 address for a pair without making any external calls
-    function pairFor(address factory, address tokenA, address tokenB) internal pure returns (address) {
-        (address token0, address token1) = sortTokens(tokenA, tokenB);
-        return(address(uint(keccak256(abi.encodePacked(
-                hex'ff',
-                factory,
-                keccak256(abi.encodePacked(token0, token1)),
-                hex'96e8ac4277198ff8b6f785478aa9a39f403cb768dd02cbee326c3e7da348845f' // init code hash // for test - c541af18c02455d609a9046750ab3e7523fd21870e93cbc83f1494ed505e4d54 
-            )))));
+    function pairFor(address factory, address tokenA, address tokenB) internal view returns (address pair) {
+        pair = IUniswapV2Factory(factory).getPair(tokenA,tokenB);
     }
 
     // fetches and sorts the reserves for a pair

contracts/test/TestRouter.sol

@@ -0,0 +1,8 @@
+pragma experimental ABIEncoderV2;
+pragma solidity =0.6.6;
+
+import '@uniswap/v2-periphery/contracts/UniswapV2Router02.sol';
+
+contract TestRouter{
+  UniswapV2Router02 router;
+}

hardhat.config.ts

@@ -21,6 +21,15 @@ const config: HardhatUserConfig = {
           },
         },
       },
+      {
+        version: "0.6.6",
+        settings: {
+          optimizer: {
+            enabled: true,
+            runs: 1000,
+          },
+        },
+      },
       {
         version: "0.6.12",
         settings: {
@@ -38,15 +47,15 @@ const config: HardhatUserConfig = {
             runs: 1000,
           },
         },
-      }    
+      },
     ],
     overrides: {},
   },
   paths: {
     sources: "./contracts",
     tests: "./test",
     cache: "./cache",
-    artifacts: "./artifacts"
+    artifacts: "./artifacts",
   },
   networks: {
     mumbai: {
@@ -66,7 +75,7 @@ const config: HardhatUserConfig = {
         process.env.PRIV_R3 as any,
       ],
       gas: 10000000,
-    }
+    },
   },
 };