Bring over custom errors definitions for tests

contracts/test/TestPaymasterRevertCustomError.sol

@@ -0,0 +1,48 @@
+// SPDX-License-Identifier: GPL-3.0-only
+pragma solidity ^0.8.23;
+
+import "@account-abstraction/contracts/core/BasePaymaster.sol";
+
+/**
+ * test postOp revert with custom error
+ */
+error CustomError(string customReason);
+
+contract TestPaymasterRevertCustomError is BasePaymaster {
+    bytes32 private constant INNER_OUT_OF_GAS = hex"deaddead";
+
+    enum RevertType {
+        customError,
+        entryPointError
+    }
+
+    RevertType private revertType;
+
+    // solhint-disable no-empty-blocks
+    constructor(IEntryPoint _entryPoint) BasePaymaster(_entryPoint)
+    {}
+
+    function _validatePaymasterUserOp(PackedUserOperation calldata userOp, bytes32, uint256)
+    internal virtual override view
+    returns (bytes memory context, uint256 validationData) {
+        validationData = 0;
+        context = abi.encodePacked(userOp.sender);
+    }
+
+    function setRevertType(RevertType _revertType) external {
+        revertType = _revertType;
+    }
+
+    function _postOp(PostOpMode, bytes calldata, uint256, uint256) internal view override {
+        if (revertType == RevertType.customError){
+            revert CustomError("this is a long revert reason string we are looking for");
+        }
+        else if (revertType == RevertType.entryPointError){
+            // solhint-disable-next-line no-inline-assembly
+            assembly {
+                mstore(0, INNER_OUT_OF_GAS)
+                revert(0, 32)
+            }
+        }
+    }
+}

test/testutils.ts

@@ -12,11 +12,14 @@ import {
 } from 'ethers/lib/utils'
 import { BigNumber, BigNumberish, Contract, ContractReceipt, Signer, Wallet } from 'ethers'
 import {
+  EntryPoint__factory,
   IERC20,
   SimpleAccount,
+  SimpleAccountFactory,
   SimpleAccountFactory__factory,
   SimpleAccount__factory,
-  SimpleAccountFactory, EntryPoint__factory
+  TestERC20__factory,
+  TestPaymasterRevertCustomError__factory
 } from '../typechain'
 import { BytesLike, Hexable } from '@ethersproject/bytes'
 // import { JsonRpcProvider } from '@ethersproject/providers'
@@ -162,8 +165,8 @@ export function rethrow (): (e: Error) => void {
 
 const decodeRevertReasonContracts = new Interface([
   ...EntryPoint__factory.createInterface().fragments,
-  // ...TestPaymasterRevertCustomError__factory.createInterface().fragments,
-  // ...TestERC20__factory.createInterface().fragments, // for OZ errors,
+  ...TestPaymasterRevertCustomError__factory.createInterface().fragments,
+  ...TestERC20__factory.createInterface().fragments, // for OZ errors,
   'error ECDSAInvalidSignature()'
 ]) // .filter(f => f.type === 'error'))