Test burn function with OpenSea integration

test/ERC721Community.test.js

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+const {expect} = require("chai");
+const {ethers} = require("hardhat");
+const {utils} = require("ethers");
+
+describe("ERC721Community - Burn function with OpenSea integration", function () {
+  let erc721Community;
+  let owner;
+  let addr1;
+  let addr2;
+  let addr3;
+  let tokenURI;
+  let tokenId;
+
+  beforeEach(async function () {
+    [owner, addr1, addr2, addr3] = await ethers.getSigners();
+    tokenURI = "https://example.com/token/";
+    tokenId = 1;
+
+    const ERC721Community = await ethers.getContractFactory("ERC721Community");
+    erc721Community = await ERC721Community.deploy("ERC721CommunityExample", "EXM");
+    await erc721Community.deployed();
+
+    await erc721Community.connect(addr1).mint(addr1.address, tokenId, tokenURI);
+  });
+
+  it("Should decrease maxSupply when a token is burned", async function () {
+    const initialMaxSupply = await erc721Community.maxSupply();
+    await erc721Community.connect(addr1).burn(tokenId);
+
+    const finalMaxSupply = await erc721Community.maxSupply();
+    expect(finalMaxSupply).to.equal(initialMaxSupply.sub(1));
+  });
+
+  it("Should decrease totalMinted and totalSupply when a token is burned", async function () {
+    const initialTotalMinted = await erc721Community.totalMinted();
+    const initialTotalSupply = await erc721Community.totalSupply();
+    await erc721Community.connect(addr1).burn(tokenId);
+
+    const finalTotalMinted = await erc721Community.totalMinted();
+    const finalTotalSupply = await erc721Community.totalSupply();
+    expect(finalTotalMinted).to.equal(initialTotalMinted.sub(1));
+    expect(finalTotalSupply).to.equal(initialTotalSupply.sub(1));
+  });
+
+  it("Should update token balance when a token is burned", async function () {
+    const initialBalance = await erc721Community.balanceOf(addr1.address);
+    await erc721Community.connect(addr1).burn(tokenId);
+
+    const finalBalance = await erc721Community.balanceOf(addr1.address);
+    expect(finalBalance).to.equal(initialBalance.sub(1));
+  });
+
+  it("Should fail if non-token owner tries to burn a token", async function () {
+    await expect(erc721Community.connect(addr2).burn(tokenId)).to.be.revertedWith("ERC721: burn caller is not owner nor approved");
+  });
+});