test(bridge): LibBridgeProcess unit tests (#238)

packages/protocol/.eslintignore

@@ -1,4 +1,4 @@
 node_modules
 artifacts
 cache
-coverage
+coverage

packages/protocol/contracts/L2/V1TaikoL2.sol

@@ -64,11 +64,11 @@ contract V1TaikoL2 is AddressResolver, ReentrancyGuard, IHeaderSync {
      * External Functions *
      **********************/
 
-    /**
-     * Persist the latest L1 block height and hash to L2 for cross-layer
-     * bridging. This function will also check certain block-level global
-     * variables because they are not part of the Trie structure.
-     * Note: this transaction shall be the first transaction in everyL2 block.
+    /** Persist the latest L1 block height and hash to L2 for cross-layer
+     *        bridging. This function will also check certain block-level global
+     *        variables because they are not part of the Trie structure.
+     *
+     *        Note that this transaction shall be the first transaction in every L2 block.
      *
      * @param l1Height The latest L1 block height when this block was proposed.
      * @param l1Hash The latest L1 block hash when this block was proposed.

packages/protocol/contracts/bridge/libs/LibBridgeSignal.sol

@@ -95,11 +95,9 @@ library LibBridgeSignal {
             bytes32(uint256(1)),
             mkp.proof
         );
-
         // get synced header hash of the header height specified in the proof
         bytes32 syncedHeaderHash = IHeaderSync(resolver.resolve("taiko"))
             .getSyncedHeader(mkp.header.height);
-
         // check header hash specified in the proof matches the current chain
         return
             syncedHeaderHash != 0 &&

packages/protocol/contracts/test/bridge/TestHeaderSync.sol

@@ -0,0 +1,28 @@
+// SPDX-License-Identifier: MIT
+//
+// ╭━━━━╮╱╱╭╮╱╱╱╱╱╭╮╱╱╱╱╱╭╮
+// ┃╭╮╭╮┃╱╱┃┃╱╱╱╱╱┃┃╱╱╱╱╱┃┃
+// ╰╯┃┃┣┻━┳┫┃╭┳━━╮┃┃╱╱╭━━┫╰━┳━━╮
+// ╱╱┃┃┃╭╮┣┫╰╯┫╭╮┃┃┃╱╭┫╭╮┃╭╮┃━━┫
+// ╱╱┃┃┃╭╮┃┃╭╮┫╰╯┃┃╰━╯┃╭╮┃╰╯┣━━┃
+// ╱╱╰╯╰╯╰┻┻╯╰┻━━╯╰━━━┻╯╰┻━━┻━━╯
+pragma solidity ^0.8.9;
+
+import "../../common/IHeaderSync.sol";
+
+contract TestHeaderSync is IHeaderSync {
+    bytes32 public headerHash;
+
+    function setSyncedHeader(bytes32 header) external {
+        headerHash = header;
+    }
+
+    function getSyncedHeader(uint256 number) external view returns (bytes32) {
+        number;
+        return headerHash;
+    }
+
+    function getLatestSyncedHeader() external view returns (bytes32) {
+        return headerHash;
+    }
+}

packages/protocol/contracts/test/bridge/libs/TestLibBridgeProcess.sol

@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: MIT
+//
+// ╭━━━━╮╱╱╭╮╱╱╱╱╱╭╮╱╱╱╱╱╭╮
+// ┃╭╮╭╮┃╱╱┃┃╱╱╱╱╱┃┃╱╱╱╱╱┃┃
+// ╰╯┃┃┣┻━┳┫┃╭┳━━╮┃┃╱╱╭━━┫╰━┳━━╮
+// ╱╱┃┃┃╭╮┣┫╰╯┫╭╮┃┃┃╱╭┫╭╮┃╭╮┃━━┫
+// ╱╱┃┃┃╭╮┃┃╭╮┫╰╯┃┃╰━╯┃╭╮┃╰╯┣━━┃
+// ╱╱╰╯╰╯╰┻┻╯╰┻━━╯╰━━━┻╯╰┻━━┻━━╯
+pragma solidity ^0.8.9;
+
+import "../../../common/EssentialContract.sol";
+import "../../../bridge/libs/LibBridgeProcess.sol";
+
+contract TestLibBridgeProcess is EssentialContract {
+    LibBridgeData.State public state;
+
+    function init(address _addressManager) external initializer {
+        EssentialContract._init(_addressManager);
+    }
+
+    function processMessage(
+        IBridge.Message calldata message,
+        bytes calldata proof
+    ) public payable {
+        LibBridgeProcess.processMessage(
+            state,
+            AddressResolver(this),
+            message,
+            proof
+        );
+    }
+}

packages/protocol/tasks/utils.ts

@@ -77,6 +77,12 @@ async function decode(hre: any, type: any, data: any) {
     return hre.ethers.utils.defaultAbiCoder.decode([type], data).toString()
 }
 
+const MessageStatus = {
+    NEW: 0,
+    RETRIABLE: 1,
+    DONE: 2,
+}
+
 export {
     deployContract,
     getDeployer,
@@ -86,4 +92,5 @@ export {
     getDeployments,
     getSlot,
     decode,
+    MessageStatus,
 }