dexorder

lib_openzeppelin_contracts/contracts/mocks/token/ERC721ReceiverMock.sol

@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: MIT
+
+pragma solidity ^0.8.20;
+
+import {IERC721Receiver} from "../../token/ERC721/IERC721Receiver.sol";
+
+contract ERC721ReceiverMock is IERC721Receiver {
+    enum RevertType {
+        None,
+        RevertWithoutMessage,
+        RevertWithMessage,
+        RevertWithCustomError,
+        Panic
+    }
+
+    bytes4 private immutable _retval;
+    RevertType private immutable _error;
+
+    event Received(address operator, address from, uint256 tokenId, bytes data, uint256 gas);
+    error CustomError(bytes4);
+
+    constructor(bytes4 retval, RevertType error) {
+        _retval = retval;
+        _error = error;
+    }
+
+    function onERC721Received(
+        address operator,
+        address from,
+        uint256 tokenId,
+        bytes memory data
+    ) public returns (bytes4) {
+        if (_error == RevertType.RevertWithoutMessage) {
+            revert();
+        } else if (_error == RevertType.RevertWithMessage) {
+            revert("ERC721ReceiverMock: reverting");
+        } else if (_error == RevertType.RevertWithCustomError) {
+            revert CustomError(_retval);
+        } else if (_error == RevertType.Panic) {
+            uint256 a = uint256(0) / uint256(0);
+            a;
+        }
+
+        emit Received(operator, from, tokenId, data, gasleft());
+        return _retval;
+    }
+}