Add ERC-165 detection for ERC6909ContentURI

.changeset/curly-pandas-flow.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`ERC6909ContentURI`: Add ERC-165 detection for the `IERC6909ContentURI` interface.

contracts/token/ERC6909/extensions/ERC6909ContentURI.sol

@@ -5,6 +5,7 @@ pragma solidity ^0.8.20;
 
 import {ERC6909} from "../ERC6909.sol";
 import {IERC6909ContentURI} from "../../../interfaces/IERC6909.sol";
+import {IERC165} from "../../../utils/introspection/IERC165.sol";
 
 /**
  * @dev Implementation of the Content URI extension defined in ERC6909.
@@ -19,6 +20,11 @@ contract ERC6909ContentURI is ERC6909, IERC6909ContentURI {
     /// @dev See {IERC1155-URI}
     event URI(string value, uint256 indexed id);
 
+    /// @inheritdoc IERC165
+    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC6909, IERC165) returns (bool) {
+        return interfaceId == type(IERC6909ContentURI).interfaceId || super.supportsInterface(interfaceId);
+    }
+
     /// @inheritdoc IERC6909ContentURI
     function contractURI() public view virtual override returns (string memory) {
         return _contractURI;

test/token/ERC6909/extensions/ERC6909ContentURI.test.js

@@ -1,6 +1,7 @@
 const { ethers } = require('hardhat');
 const { expect } = require('chai');
 const { loadFixture } = require('@nomicfoundation/hardhat-network-helpers');
+const { shouldSupportInterfaces } = require('../../../utils/introspection/SupportsInterface.behavior');
 
 async function fixture() {
   const token = await ethers.deployContract('$ERC6909ContentURI');
@@ -46,4 +47,6 @@ describe('ERC6909ContentURI', function () {
         .withArgs('https://example.com/1', 1n);
     });
   });
+
+  shouldSupportInterfaces(['ERC6909', 'ERC6909ContentURI']);
 });

test/utils/introspection/SupportsInterface.behavior.js

@@ -99,6 +99,7 @@ const SIGNATURES = {
     'approve(address,uint256,uint256)',
     'setOperator(address,bool)',
   ],
+  ERC6909ContentURI: ['contractURI()', 'tokenURI(uint256)'],
 };
 
 const INTERFACE_IDS = mapValues(SIGNATURES, interfaceId);