Adding tests for [OZ] Multicall example (#548)

Adding tests for multicall

Signed-off-by: Stefan Stefanov <[email protected]>

contracts/oz/multicall/MulticallTest.sol

@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: Apache-2.0
+pragma solidity ^0.8.20;
+
+import "@openzeppelin/contracts/utils/Multicall.sol";
+
+contract MulticallTest is Multicall {
+    function foo() public pure returns (uint256) {
+        return 123;
+    }
+
+    function bar() public pure returns (uint256) {
+        return 456;
+    }
+}

test/constants.js

@@ -68,6 +68,14 @@ const Path = {
   TYPE_OPS: 'contracts/solidity/typeops/TypeOps.sol:TypeOps',
 }
 
+const OZ = {
+  ERC165: {
+    Test: 'Test_ERC165',
+    IClimber: 'IClimber',
+    ClimberSelector: 'ClimberSelector',
+  },
+}
+
 const Contract = {
   ERC20Mock: 'ERC20Mock',
   TokenCreateContract: 'TokenCreateContract',

test/solidity/oz/multicall/multicall.js

@@ -0,0 +1,45 @@
+/*-
+ *
+ * Hedera Smart Contracts
+ *
+ * Copyright (C) 2023 Hedera Hashgraph, LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
+
+const { expect } = require('chai')
+const { ethers } = require('hardhat')
+const { Contract } = require('../../../constants')
+
+describe('@solidityequiv3 Solidity OZ Multicall', function () {
+  let contract
+
+  before(async function () {
+    const factoryErrorsExternal = await ethers.getContractFactory('MulticallTest')
+    contract = await factoryErrorsExternal.deploy()
+    await contract.deployed()
+  })
+
+  it('should perform a multicall', async function () {
+    const foo =  await contract.populateTransaction.foo()
+    const bar = await contract.populateTransaction.bar()
+    const res = await contract.callStatic.multicall([
+     foo.data, bar.data      
+    ])
+
+    expect(ethers.BigNumber.from(res[0])).to.be.equal(ethers.BigNumber.from(123))
+    expect(ethers.BigNumber.from(res[1])).to.be.equal(ethers.BigNumber.from(456))
+  })
+
+})