Adding tests for [OZ] Pausable (#572)

* Adding tests for Pausable --------- Signed-off-by: Stefan Stefanov <[email protected]>
hashgraph · Nov 8, 2023 · 8b7b6a7 · 8b7b6a7
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diff --git a/contracts/solidity/oz/Pausable/Pausable.sol b/contracts/solidity/oz/Pausable/Pausable.sol
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: Apache-2.0
+pragma solidity ^0.8.20;
+
+import "@openzeppelin/contracts/utils/Pausable.sol";
+
+contract PausableTest is Pausable {
+    string public message;
+
+    function setPausedMessage(string calldata _message) external whenNotPaused {
+        message = _message;
+    }
+
+    function getPausedMessage() external view whenPaused returns (string memory) {
+        return message;
+    }
+
+    function pause() external {
+        _pause();
+    }
+
+    function unpause() external {
+        _unpause();
+    }
+}
diff --git a/test/solidity/oz/pausable/pausable.js b/test/solidity/oz/pausable/pausable.js
@@ -0,0 +1,101 @@
+/*-
+ *
+ * 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')
+
+describe('@solidityequiv3 Pausable', function () {
+  let signers,wallet
+  let contract
+  const CALL_EXCEPTION = 'CALL_EXCEPTION'
+
+  before(async function () {
+    signers = await ethers.getSigners()
+    wallet = signers[0]
+
+    const factory = await ethers.getContractFactory('PausableTest')
+    contract = await factory.deploy()
+    await contract.deployed()
+  })
+
+  it('should BE able to call function "setPausedMessage" with "whenNotPaused" modifier when unpaused', async function () {
+    const tx = await contract.setPausedMessage("Hello World")
+    await tx.wait()
+    const message = await contract.message()
+
+    expect(message).to.equal("Hello World")
+  })
+
+  it('should NOT be able to call function "setPausedMessage" with "whenNotPaused" modifier when paused', async function () {
+    await contract.pause()
+    const tx = await contract.setPausedMessage("Hello World")
+
+    expect(tx.wait()).to.eventually.be.rejected.and.have.property('code', CALL_EXCEPTION)
+  })
+
+  it('should BE able to call function "getPausedMessage" with "whenNotPaused" modifier when unpaused', async function () {
+    expect(await contract.getPausedMessage()).to.be.equal("Hello World")
+  })
+
+  it('should NOT be able to call function "getPausedMessage" with "whenNotPaused" modifier when paused', async function () {
+    await contract.unpause()
+
+    expect(contract.getPausedMessage()).to.eventually.be.rejected.and.have.property('code', CALL_EXCEPTION)
+  })
+
+  it('should fire event when Paused', async function () {
+    const tx = await contract.pause()
+    const rec = await tx.wait()
+    const event = rec.events[0]
+    const account = event.args.account
+
+
+    expect(event.event).to.be.equal("Paused")
+    expect(account).to.be.equal(wallet.address)
+  })
+
+  it('should fire event when Unpaused', async function () {
+    const tx = await contract.unpause()
+    const rec = await tx.wait()
+    const event = rec.events[0]
+    const account = event.args.account
+
+
+    expect(event.event).to.be.equal("Unpaused")
+    expect(account).to.be.equal(wallet.address)
+  })
+
+  it('should Not be able to pause when paused', async function () {
+    const tx = await contract.pause()
+    await tx.wait()
+    const tx2 = await contract.pause()
+
+    expect(tx2.wait()).to.eventually.be.rejected.and.have.property('code', CALL_EXCEPTION)
+  })
+
+  it('should Not be able to Unpause when Unpaused', async function () {
+    const tx = await contract.unpause()
+    await tx.wait()
+    const tx2 = await contract.unpause()
+
+    expect(tx2.wait()).to.eventually.be.rejected.and.have.property('code', CALL_EXCEPTION)
+  })
+
+})