4.0.0

(cherry picked from commit a3712a3288)

CHANGELOG.md

@@ -1,23 +1,29 @@
 # Changelog
 
-## 4.0.0
+## 4.0.0 (2021-03-23)
 
  * Now targeting the 0.8.x line of Solidity compilers. For 0.6.x (resp 0.7.x) support, use version 3.4.0 (resp 3.4.0-solc-0.7) of OpenZeppelin.
  * `Context`: making `_msgData` return `bytes calldata` instead of `bytes memory` ([#2492](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2492))
- * `ERC20`: Removed the `_setDecimals` function and the storage slot associated to decimals. ([#2502](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2502))
+ * `ERC20`: removed the `_setDecimals` function and the storage slot associated to decimals. ([#2502](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2502))
  * `Strings`: addition of a `toHexString` function.  ([#2504](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2504))
  * `EnumerableMap`: change implementation to optimize for `key → value` lookups instead of enumeration. ([#2518](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2518))
- * `GSN`: Deprecate GSNv1 support in favor of upcomming support for GSNv2. ([#2521](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2521))
+ * `GSN`: deprecate GSNv1 support in favor of upcoming support for GSNv2. ([#2521](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2521))
- * `ERC165`: Remove uses of storage in the base ERC165 implementation. ERC165 based contracts now use storage-less virtual functions. Old behaviour remains available in the `ERC165Storage` extension. ([#2505](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2505))
+ * `ERC165`: remove uses of storage in the base ERC165 implementation. ERC165 based contracts now use storage-less virtual functions. Old behavior remains available in the `ERC165Storage` extension. ([#2505](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2505))
- * `Initializable`: Make initializer check stricter during construction. ([#2531](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2531))
+ * `Initializable`: make initializer check stricter during construction. ([#2531](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2531))
  * `ERC721`: remove enumerability of tokens from the base implementation. This feature is now provided separately through the `ERC721Enumerable` extension. ([#2511](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2511))
  * `AccessControl`: removed enumerability by default for a more lightweight contract. It is now opt-in through `AccessControlEnumerable`. ([#2512](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2512))
  * Meta Transactions: add `ERC2771Context` and a `MinimalForwarder` for meta-transactions. ([#2508](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2508))
- * Overall reorganisation of the contract folder to improve clarity and discoverability. ([#2503](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2503))
+ * Overall reorganization of the contract folder to improve clarity and discoverability. ([#2503](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2503))
- * `ERC20Capped`: optimize gas usage of by enforcing te check directly in `_mint`. ([#2524](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2524))
+ * `ERC20Capped`: optimize gas usage by enforcing the check directly in `_mint`. ([#2524](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2524))
  * Rename `UpgradeableProxy` to `ERC1967Proxy`. ([#2547](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2547))
- * `ERC777`: Optimize the gas costs of the constructor. ([#2551](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2551))
+ * `ERC777`: optimize the gas costs of the constructor. ([#2551](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2551))
- * `ERC721TokenUri`: Add a new extension ERC721TokenUri that implements the tokenURI behavior as it was available in 3.4.0. ([#2555](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2555))
+ * `ERC721URIStorage`: add a new extension that implements the `_setTokenURI` behavior as it was available in 3.4.0. ([#2555](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2555))
+ * `AccessControl`: added ERC165 interface detection. ([#2562](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2562))
+ * `ERC1155`: make `uri` public so overloading function can call it using super. ([#2576](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2576))
+
+### Bug fixes for beta releases
+
+ * `AccessControlEnumerable`: Fixed `renounceRole` not updating enumerable set of addresses for a role. ([#2572](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2572))
 
 ### How to upgrade from 3.x
 
@@ -29,6 +35,10 @@ npx openzeppelin-contracts-migrate-imports
 
 Make sure you're using git or another version control system to be able to recover from any potential error in our script.
 
+### How to upgrade from 4.0-beta.x
+
+Some further changes have been done between the different beta iterations. Transitions made during this period are configured in the `migrate-imports` script. Consequently, you can upgrade from any previous 4.0-beta.x version using the same script as described in the *How to upgrade from 3.x* section.
+
 ## 3.4.0 (2021-02-02)
 
  * `BeaconProxy`: added new kind of proxy that allows simultaneous atomic upgrades. ([#2411](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2411))

contracts/access/AccessControl.sol

@@ -3,6 +3,18 @@
 pragma solidity ^0.8.0;
 
 import "../utils/Context.sol";
+import "../utils/introspection/ERC165.sol";
+
+/**
+ * @dev External interface of AccessControl declared to support ERC165 detection.
+ */
+interface IAccessControl {
+    function hasRole(bytes32 role, address account) external view returns (bool);
+    function getRoleAdmin(bytes32 role) external view returns (bytes32);
+    function grantRole(bytes32 role, address account) external;
+    function revokeRole(bytes32 role, address account) external;
+    function renounceRole(bytes32 role, address account) external;
+}
 
 /**
  * @dev Contract module that allows children to implement role-based access
@@ -42,7 +54,7 @@ import "../utils/Context.sol";
  * grant and revoke this role. Extra precautions should be taken to secure
  * accounts that have been granted it.
  */
-abstract contract AccessControl is Context {
+abstract contract AccessControl is Context, IAccessControl, ERC165 {
     struct RoleData {
         mapping (address => bool) members;
         bytes32 adminRole;
@@ -79,10 +91,18 @@ abstract contract AccessControl is Context {
      */
     event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);
 
+    /**
+     * @dev See {IERC165-supportsInterface}.
+     */
+    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
+        return interfaceId == type(IAccessControl).interfaceId
+            || super.supportsInterface(interfaceId);
+    }
+
     /**
      * @dev Returns `true` if `account` has been granted `role`.
      */
-    function hasRole(bytes32 role, address account) public view returns (bool) {
+    function hasRole(bytes32 role, address account) public view override returns (bool) {
         return _roles[role].members[account];
     }
 
@@ -92,7 +112,7 @@ abstract contract AccessControl is Context {
      *
      * To change a role's admin, use {_setRoleAdmin}.
      */
-    function getRoleAdmin(bytes32 role) public view returns (bytes32) {
+    function getRoleAdmin(bytes32 role) public view override returns (bytes32) {
         return _roles[role].adminRole;
     }
 
@@ -106,7 +126,7 @@ abstract contract AccessControl is Context {
      *
      * - the caller must have ``role``'s admin role.
      */
-    function grantRole(bytes32 role, address account) public virtual {
+    function grantRole(bytes32 role, address account) public virtual override {
         require(hasRole(getRoleAdmin(role), _msgSender()), "AccessControl: sender must be an admin to grant");
 
         _grantRole(role, account);
@@ -121,7 +141,7 @@ abstract contract AccessControl is Context {
      *
      * - the caller must have ``role``'s admin role.
      */
-    function revokeRole(bytes32 role, address account) public virtual {
+    function revokeRole(bytes32 role, address account) public virtual override {
         require(hasRole(getRoleAdmin(role), _msgSender()), "AccessControl: sender must be an admin to revoke");
 
         _revokeRole(role, account);
@@ -141,7 +161,7 @@ abstract contract AccessControl is Context {
      *
      * - the caller must be `account`.
      */
-    function renounceRole(bytes32 role, address account) public virtual {
+    function renounceRole(bytes32 role, address account) public virtual override {
         require(account == _msgSender(), "AccessControl: can only renounce roles for self");
 
         _revokeRole(role, account);

contracts/access/AccessControlEnumerable.sol

@@ -5,14 +5,30 @@ pragma solidity ^0.8.0;
 import "./AccessControl.sol";
 import "../utils/structs/EnumerableSet.sol";
 
+/**
+ * @dev External interface of AccessControlEnumerable declared to support ERC165 detection.
+ */
+interface IAccessControlEnumerable {
+    function getRoleMember(bytes32 role, uint256 index) external view returns (address);
+    function getRoleMemberCount(bytes32 role) external view returns (uint256);
+}
+
 /**
  * @dev Extension of {AccessControl} that allows enumerating the members of each role.
  */
-abstract contract AccessControlEnumerable is AccessControl {
+abstract contract AccessControlEnumerable is IAccessControlEnumerable, AccessControl {
     using EnumerableSet for EnumerableSet.AddressSet;
 
     mapping (bytes32 => EnumerableSet.AddressSet) private _roleMembers;
 
+    /**
+     * @dev See {IERC165-supportsInterface}.
+     */
+    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
+        return interfaceId == type(IAccessControlEnumerable).interfaceId
+            || super.supportsInterface(interfaceId);
+    }
+
     /**
      * @dev Returns one of the accounts that have `role`. `index` must be a
      * value between 0 and {getRoleMemberCount}, non-inclusive.
@@ -25,7 +41,7 @@ abstract contract AccessControlEnumerable is AccessControl {
      * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
      * for more information.
      */
-    function getRoleMember(bytes32 role, uint256 index) public view returns (address) {
+    function getRoleMember(bytes32 role, uint256 index) public view override returns (address) {
         return _roleMembers[role].at(index);
     }
 
@@ -33,7 +49,7 @@ abstract contract AccessControlEnumerable is AccessControl {
      * @dev Returns the number of accounts that have `role`. Can be used
      * together with {getRoleMember} to enumerate all bearers of a role.
      */
-    function getRoleMemberCount(bytes32 role) public view returns (uint256) {
+    function getRoleMemberCount(bytes32 role) public view override returns (uint256) {
         return _roleMembers[role].length();
     }
 
@@ -53,6 +69,14 @@ abstract contract AccessControlEnumerable is AccessControl {
         _roleMembers[role].remove(account);
     }
 
+    /**
+     * @dev Overload {renounceRole} to track enumerable memberships
+     */
+    function renounceRole(bytes32 role, address account) public virtual override {
+        super.renounceRole(role, account);
+        _roleMembers[role].remove(account);
+    }
+
     /**
      * @dev Overload {_setupRole} to track enumerable memberships
      */

contracts/finance/PaymentSplitter.sol

@@ -2,9 +2,9 @@
 
 pragma solidity ^0.8.0;
 
-import "./Address.sol";
+import "../utils/Address.sol";
-import "./Context.sol";
+import "../utils/Context.sol";
-import "./math/SafeMath.sol";
+import "../utils/math/SafeMath.sol";
 
 /**
  * @title PaymentSplitter

contracts/finance/README.adoc

@@ -0,0 +1,10 @@
+= Finance
+
+[.readme-notice]
+NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/api/finance
+
+This directory includes primitives for financial systems. We currently only offer the {PaymentSplitter} contract, but we want to grow this directory so we welcome ideas.
+
+== PaymentSplitter
+
+{{PaymentSplitter}}

contracts/governance/README.adoc

@@ -1,7 +1,7 @@
 = Governance
 
 [.readme-notice]
-NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/api/access
+NOTE: This document is better viewed at https://docs.openzeppelin.com/contracts/api/governance
 
 This directory includes primitives for on-chain governance. We currently only offer the {TimelockController} contract, that can be used as a component in a governance systems to introduce a delay between a proposal and its execution.
 

contracts/mocks/InitializableMock.sol

@@ -2,7 +2,7 @@
 
 pragma solidity ^0.8.0;
 
-import "../utils/Initializable.sol";
+import "../proxy/utils/Initializable.sol";
 
 /**
  * @title InitializableMock

contracts/mocks/MultipleInheritanceInitializableMocks.sol

@@ -2,7 +2,7 @@
 
 pragma solidity ^0.8.0;
 
-import "../utils/Initializable.sol";
+import "../proxy/utils/Initializable.sol";
 
 // Sample contracts showing upgradeability with multiple inheritance.
 // Child contract inherits from Father and Mother contracts, and Father extends from Gramps.

contracts/mocks/RegressionImplementation.sol

@@ -2,7 +2,7 @@
 
 pragma solidity ^0.8.0;
 
-import "../utils/Initializable.sol";
+import "../proxy/utils/Initializable.sol";
 
 contract Implementation1 is Initializable {
   uint internal _value;

contracts/mocks/SingleInheritanceInitializableMocks.sol

@@ -2,7 +2,7 @@
 
 pragma solidity ^0.8.0;
 
-import "../utils/Initializable.sol";
+import "../proxy/utils/Initializable.sol";
 
 /**
  * @title MigratableMockV1

contracts/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@openzeppelin/contracts",
   "description": "Secure Smart Contract library for Solidity",
-  "version": "4.0.0-beta.1",
+  "version": "4.0.0",
   "files": [
     "**/*.sol",
     "/build/contracts/*.json",

contracts/proxy/README.adoc

@@ -40,3 +40,7 @@ CAUTION: Using upgradeable proxies correctly and securely is a difficult task th
 == Minimal Clones
 
 {{Clones}}
+
+== Utils
+
+{{Initializable}}

contracts/proxy/utils/Initializable.sol

@@ -3,7 +3,7 @@
 // solhint-disable-next-line compiler-version
 pragma solidity ^0.8.0;
 
-import "./Address.sol";
+import "../../utils/Address.sol";
 
 /**
  * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed

contracts/token/ERC1155/ERC1155.sol

@@ -55,7 +55,7 @@ contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI {
      * Clients calling this function must replace the `\{id\}` substring with the
      * actual token type ID.
      */
-    function uri(uint256) external view virtual override returns (string memory) {
+    function uri(uint256) public view virtual override returns (string memory) {
         return _uri;
     }
 

contracts/token/ERC1155/presets/ERC1155PresetMinterPauser.sol

@@ -89,6 +89,13 @@ contract ERC1155PresetMinterPauser is Context, AccessControlEnumerable, ERC1155B
         _unpause();
     }
 
+    /**
+     * @dev See {IERC165-supportsInterface}.
+     */
+    function supportsInterface(bytes4 interfaceId) public view virtual override(AccessControlEnumerable, ERC1155) returns (bool) {
+        return super.supportsInterface(interfaceId);
+    }
+
     function _beforeTokenTransfer(
         address operator,
         address from,

contracts/token/ERC721/ERC721.sol

@@ -223,7 +223,7 @@ contract ERC721 is Context, ERC165, IERC721, IERC721Metadata {
      * @dev Safely mints `tokenId` and transfers it to `to`.
      *
      * Requirements:
-     d*
+     *
      * - `tokenId` must not exist.
      * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
      *

contracts/token/ERC721/README.adoc

@@ -39,7 +39,7 @@ NOTE: This core set of contracts is designed to be unopinionated, allowing devel
 
 {{ERC721Burnable}}
 
-{{ERC721TokenUri}}
+{{ERC721URIStorage}}
 
 == Presets
 

contracts/token/ERC721/extensions/ERC721URIStorage.sol

@@ -5,7 +5,7 @@ pragma solidity ^0.8.0;
 import "../ERC721.sol";
 
 /**
- * @dev ERC721 token with storage based token uri management.
+ * @dev ERC721 token with storage based token URI management.
  */
 abstract contract ERC721URIStorage is ERC721 {
     using Strings for uint256;

contracts/token/ERC721/presets/ERC721PresetMinterPauserAutoId.sol

@@ -110,7 +110,7 @@ contract ERC721PresetMinterPauserAutoId is Context, AccessControlEnumerable, ERC
     /**
      * @dev See {IERC165-supportsInterface}.
      */
-    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721, ERC721Enumerable) returns (bool) {
+    function supportsInterface(bytes4 interfaceId) public view virtual override(AccessControlEnumerable, ERC721, ERC721Enumerable) returns (bool) {
         return super.supportsInterface(interfaceId);
     }
 }

contracts/utils/README.adoc

@@ -40,6 +40,14 @@ Finally, {Create2} contains all necessary utilities to safely use the https://bl
 
 {{EIP712}}
 
+== Escrow
+
+{{ConditionalEscrow}}
+
+{{Escrow}}
+
+{{RefundEscrow}}
+
 == Introspection
 
 This set of interfaces and contracts deal with https://en.wikipedia.org/wiki/Type_introspection[type introspection] of contracts, that is, examining which functions can be called on them. This is usually referred to as a contract's _interface_.
@@ -84,7 +92,3 @@ Note that, in all cases, accounts simply _declare_ their interfaces, but they ar
 {{Counters}}
 
 {{Strings}}
-
-== Other
-
-{{Initializable}}

package.json

@@ -1,7 +1,7 @@
 {
   "name": "openzeppelin-solidity",
   "description": "Secure Smart Contract library for Solidity",
-  "version": "4.0.0-beta.1",
+  "version": "4.0.0",
   "files": [
     "/contracts/**/*.sol",
     "/build/contracts/*.json",
@@ -75,6 +75,5 @@
     "solidity-coverage": "^0.7.11",
     "solidity-docgen": "^0.5.3",
     "web3": "^1.3.0"
-  },
+  }
-  "dependencies": {}
 }

scripts/migrate-imports.js

@@ -30,7 +30,8 @@ const pathUpdates = {
   'payment/escrow/ConditionalEscrow.sol': 'utils/escrow/ConditionalEscrow.sol',
   'payment/escrow/Escrow.sol': 'utils/escrow/Escrow.sol',
   'payment/escrow/RefundEscrow.sol': 'utils/escrow/RefundEscrow.sol',
-  'payment/PaymentSplitter.sol': 'utils/PaymentSplitter.sol',
+  'payment/PaymentSplitter.sol': 'finance/PaymentSplitter.sol',
+  'utils/PaymentSplitter.sol': 'finance/PaymentSplitter.sol',
   'payment/PullPayment.sol': 'security/PullPayment.sol',
   'presets/ERC1155PresetMinterPauser.sol': 'token/ERC1155/presets/ERC1155PresetMinterPauser.sol',
   'presets/ERC20PresetFixedSupply.sol': 'token/ERC20/presets/ERC20PresetFixedSupply.sol',
@@ -40,12 +41,13 @@ const pathUpdates = {
   'proxy/BeaconProxy.sol': 'proxy/beacon/BeaconProxy.sol',
   // 'proxy/Clones.sol': undefined,
   'proxy/IBeacon.sol': 'proxy/beacon/IBeacon.sol',
-  'proxy/Initializable.sol': 'utils/Initializable.sol',
+  'proxy/Initializable.sol': 'proxy/utils/Initializable.sol',
+  'utils/Initializable.sol': 'proxy/utils/Initializable.sol',
   'proxy/ProxyAdmin.sol': 'proxy/transparent/ProxyAdmin.sol',
   // 'proxy/Proxy.sol': undefined,
   'proxy/TransparentUpgradeableProxy.sol': 'proxy/transparent/TransparentUpgradeableProxy.sol',
   'proxy/UpgradeableBeacon.sol': 'proxy/beacon/UpgradeableBeacon.sol',
-  // 'proxy/UpgradeableProxy.sol': undefined,
+  'proxy/UpgradeableProxy.sol': 'proxy/ERC1967/ERC1967Proxy.sol',
   'token/ERC1155/ERC1155Burnable.sol': 'token/ERC1155/extensions/ERC1155Burnable.sol',
   'token/ERC1155/ERC1155Holder.sol': 'token/ERC1155/utils/ERC1155Holder.sol',
   'token/ERC1155/ERC1155Pausable.sol': 'token/ERC1155/extensions/ERC1155Pausable.sol',

scripts/remove-ignored-artifacts.js

@@ -23,23 +23,21 @@ const ignorePatternsSubtrees = ignorePatterns
   .concat(ignorePatterns.map(pat => path.join(pat, '**/*')))
   .map(p => p.replace(/^\//, ''));
 
+const artifactsDir = 'build/contracts';
 const buildinfo = 'artifacts/build-info';
 const filenames = fs.readdirSync(buildinfo);
-if (filenames.length !== 1) {
-  throw new Error(`There should only be one file in ${buildinfo}`);
-}
-const solcOutput = readJSON(path.join(buildinfo, filenames[0])).output;
-
-const artifactsDir = 'build/contracts';
 
 let n = 0;
 
-for (const sourcePath in solcOutput.contracts) {
+for (const filename of filenames) {
-  const ignore = match.any(sourcePath, ignorePatternsSubtrees);
+  const solcOutput = readJSON(path.join(buildinfo, filename)).output;
-  if (ignore) {
+  for (const sourcePath in solcOutput.contracts) {
-    for (const contract in solcOutput.contracts[sourcePath]) {
+    const ignore = match.any(sourcePath, ignorePatternsSubtrees);
-      fs.unlinkSync(path.join(artifactsDir, contract + '.json'));
+    if (ignore) {
-      n += 1;
+      for (const contract in solcOutput.contracts[sourcePath]) {
+        fs.unlinkSync(path.join(artifactsDir, contract + '.json'));
+        n += 1;
+      }
     }
   }
 }

test/access/AccessControl.behavior.js

@@ -1,11 +1,15 @@
 const { expectEvent, expectRevert } = require('@openzeppelin/test-helpers');
 const { expect } = require('chai');
 
+const { shouldSupportInterfaces } = require('../utils/introspection/SupportsInterface.behavior');
+
 const DEFAULT_ADMIN_ROLE = '0x0000000000000000000000000000000000000000000000000000000000000000';
 const ROLE = web3.utils.soliditySha3('ROLE');
 const OTHER_ROLE = web3.utils.soliditySha3('OTHER_ROLE');
 
 function shouldBehaveLikeAccessControl (errorPrefix, admin, authorized, other, otherAdmin, otherAuthorized) {
+  shouldSupportInterfaces(['AccessControl']);
+
   describe('default admin', function () {
     it('deployer has default admin role', async function () {
       expect(await this.accessControl.hasRole(DEFAULT_ADMIN_ROLE, admin)).to.equal(true);
@@ -156,6 +160,8 @@ function shouldBehaveLikeAccessControl (errorPrefix, admin, authorized, other, o
 }
 
 function shouldBehaveLikeAccessControlEnumerable (errorPrefix, admin, authorized, other, otherAdmin, otherAuthorized) {
+  shouldSupportInterfaces(['AccessControlEnumerable']);
+
   describe('enumerating', function () {
     it('role bearers can be enumerated', async function () {
       await this.accessControl.grantRole(ROLE, authorized, { from: admin });
@@ -173,6 +179,13 @@ function shouldBehaveLikeAccessControlEnumerable (errorPrefix, admin, authorized
 
       expect(bearers).to.have.members([authorized, otherAuthorized]);
     });
+    it('role enumeration should be in sync after renounceRole call', async function () {
+      expect(await this.accessControl.getRoleMemberCount(ROLE)).to.bignumber.equal('0');
+      await this.accessControl.grantRole(ROLE, admin, { from: admin });
+      expect(await this.accessControl.getRoleMemberCount(ROLE)).to.bignumber.equal('1');
+      await this.accessControl.renounceRole(ROLE, admin, { from: admin });
+      expect(await this.accessControl.getRoleMemberCount(ROLE)).to.bignumber.equal('0');
+    });
   });
 }
 

test/token/ERC1155/presets/ERC1155PresetMinterPauser.test.js

@@ -1,5 +1,6 @@
 const { BN, constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers');
 const { ZERO_ADDRESS } = constants;
+const { shouldSupportInterfaces } = require('../../../utils/introspection/SupportsInterface.behavior');
 
 const { expect } = require('chai');
 
@@ -24,6 +25,8 @@ contract('ERC1155PresetMinterPauser', function (accounts) {
     this.token = await ERC1155PresetMinterPauser.new(uri, { from: deployer });
   });
 
+  shouldSupportInterfaces(['ERC1155', 'AccessControl', 'AccessControlEnumerable']);
+
   it('deployer has the default admin role', async function () {
     expect(await this.token.getRoleMemberCount(DEFAULT_ADMIN_ROLE)).to.be.bignumber.equal('1');
     expect(await this.token.getRoleMember(DEFAULT_ADMIN_ROLE, 0)).to.equal(deployer);

test/token/ERC721/presets/ERC721PresetMinterPauserAutoId.test.js

@@ -1,5 +1,6 @@
 const { BN, constants, expectEvent, expectRevert } = require('@openzeppelin/test-helpers');
 const { ZERO_ADDRESS } = constants;
+const { shouldSupportInterfaces } = require('../../../utils/introspection/SupportsInterface.behavior');
 
 const { expect } = require('chai');
 
@@ -19,6 +20,8 @@ contract('ERC721PresetMinterPauserAutoId', function (accounts) {
     this.token = await ERC721PresetMinterPauserAutoId.new(name, symbol, baseURI, { from: deployer });
   });
 
+  shouldSupportInterfaces(['ERC721', 'ERC721Enumerable', 'AccessControl', 'AccessControlEnumerable']);
+
   it('token has correct name', async function () {
     expect(await this.token.name()).to.equal(name);
   });

test/utils/introspection/SupportsInterface.behavior.js

@@ -39,6 +39,17 @@ const INTERFACES = {
     'onERC1155Received(address,address,uint256,uint256,bytes)',
     'onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)',
   ],
+  AccessControl: [
+    'hasRole(bytes32,address)',
+    'getRoleAdmin(bytes32)',
+    'grantRole(bytes32,address)',
+    'revokeRole(bytes32,address)',
+    'renounceRole(bytes32,address)',
+  ],
+  AccessControlEnumerable: [
+    'getRoleMember(bytes32,uint256)',
+    'getRoleMemberCount(bytes32)',
+  ],
 };
 
 const INTERFACE_IDS = {};
@@ -54,7 +65,7 @@ for (const k of Object.getOwnPropertyNames(INTERFACES)) {
 function shouldSupportInterfaces (interfaces = []) {
   describe('Contract interface', function () {
     beforeEach(function () {
-      this.contractUnderTest = this.mock || this.token || this.holder;
+      this.contractUnderTest = this.mock || this.token || this.holder || this.accessControl;
     });
 
     for (const k of interfaces) {