feat: retry contract (#259)

contracts/Retry.sol

@@ -0,0 +1,24 @@
+// The Licensed Work is (c) 2022 Sygma
+// SPDX-License-Identifier: LGPL-3.0-only
+
+pragma solidity 0.8.11;
+
+import "@openzeppelin/contracts/access/Ownable.sol";
+
+contract Retry is Ownable {
+
+    event Retry(uint8 sourceDomainID, uint8 destinationDomainID, uint256 blockHeight, bytes32 resourceID);
+
+    /**
+        @notice This method is used to trigger the process for retrying failed deposits on the MPC side.
+        @notice Only callable by admin.
+        @param sourceDomainID ID of the retry source. 
+        @param destinationDomainID ID of the transfer destination. 
+        @param blockHeight Block height on origin chain which contains failed deposits.
+        @param resourceID Resource ID of transfers that are to be retried.
+     */
+    function retry(uint8 sourceDomainID, uint8 destinationDomainID, uint256 blockHeight, bytes32 resourceID) external onlyOwner {
+        emit Retry(sourceDomainID, destinationDomainID, blockHeight, resourceID);
+    }
+
+}

test/retry/retry.js

@@ -0,0 +1,43 @@
+// The Licensed Work is (c) 2022 Sygma
+// SPDX-License-Identifier: LGPL-3.0-only
+
+const TruffleAssert = require("truffle-assertions");
+const Retry = artifacts.require("Retry")
+
+contract("Retry", (accounts) => {
+    let RetryInstance;
+
+    const sourceDomainID = 1;
+    const destinationDomainID = 2;
+    const blockHeight = 15;
+    const resourceID = "0x0000000000000000000000000000000000000000000000000000000000000300";
+
+    beforeEach(async () => {
+        RetryInstance = await Retry.new(accounts[0]);
+    });
+
+    it("should emit Retry event when retry is called by the owner", async () => {
+      const tx = await RetryInstance.retry(
+        sourceDomainID, 
+        destinationDomainID,  
+        blockHeight, 
+        resourceID, 
+        {from: accounts[0]})
+
+        TruffleAssert.eventEmitted(tx, "Retry", (event) => {
+            return (
+                event.sourceDomainID.toNumber() === sourceDomainID && 
+                event.destinationDomainID.toNumber() === destinationDomainID && 
+                event.blockHeight.toNumber() === blockHeight &&
+                event.resourceID === resourceID
+            );
+        });
+    });
+
+    it("should revert when retry is not called by the owner", async () => {
+      await TruffleAssert.reverts(
+        RetryInstance.retry(sourceDomainID, destinationDomainID, blockHeight, resourceID, {from: accounts[1]}),
+        "Ownable: caller is not the owner."
+      )
+    });
+})