DAPP开发【09】NFT交易市场开发（hardhat测试）

测试文件下新建market.js文件

扁平化，将所有依赖放在tmp.sol，可以去给他人使用
npx hardhat flatten > tmp.sol

测试文件

const {expect} = require('chai');
const {ethers} = require('hardhat');describe('Market',async function(){//定义三个合约，两个账户let usdt,nft,market,accountA,accountB;beforeEach(async () =>{  //hardhat提供两个账户[accountA,accountB] = await ethers.getSigners();//部署三个合约const USDT = await ethers.getContractFactory('cUSDT');usdt = await USDT.deploy();const MyNFT = await ethers.getContractFactory('NFTM');nft = await MyNFT.deploy(accountA.address);const Market = await ethers.getContractFactory('Market');market = await Market.deploy(usdt.target,nft.target);//给账户1挖1usdt的 erc20  部署erc20合约是就给账户A了1e26的erc20//给账户2挖两个nftawait nft.safeMint(accountB.address);await nft.safeMint(accountB.address);await nft.connect(accountB).setApprovalForAll(accountA.address,true);//给market授权花费A的钱(默认连接的就是第一个用户)//await usdt.connect(accountA).approve(market.target,"1e26");await usdt.approve(market.target,"100000000000000000000000000");});//验证erc20变量==usdt的地址it('its erc20 address should be usdt',async function(){expect(await market.erc20()).to.equal(usdt.target);});it('its erc721 address should be MyNft',async function(){expect(await market.erc721()).to.equal(nft.target);});it('accountB should have two nfts',async function(){expect(await nft.balanceOf(accountB.address)).to.equals(2);});it('accountA should have 1e26 usdt',async function(){expect(await usdt.balanceOf(accountA.address)).to.equals("100000000000000000000000000");});it('accountB can list 2 nft to market',async function(){const price = "0x0000000000000000000000000000000000000000000000000001c6bf52634000";//await nft.connect(accountB).safeTransferFrom(accountB.address,market.target,0,price);//报错//TypeError: ambiguous function description (i.e. matches "safeTransferFrom(address,address,uint256)", //"safeTransferFrom(address,address,uint256,bytes)") (argument="key", value="safeTransferFrom", code=INVALID_ARGUMENT, version=6.9.0)//ambiguous 混淆同名函数，即使参数不一样，也分不出来，所以用下面的方法，明确选择器的名字//这里应该是B来调用进行上架，但是默认是a，老师忘记怎么连接了//于是在上面定义  await nft.connect(accountB).setApprovalForAll(accountA.address,true);//b允许a使用它的nftexpect(await nft['safeTransferFrom(address,address,uint256,bytes)'](accountB.address,market.target,0,price)).to.emit(market,"NewOrder");expect(await nft['safeTransferFrom(address,address,uint256,bytes)'](accountB.address,market.target,1,price)).to.emit(market,"NewOrder");expect(await nft.balanceOf(accountB.address)).to.equal(0);expect(await nft.balanceOf(market.target)).to.equal(2);expect(await market.isListed(0)).to.equal(true);expect(await market.isListed(1)).to.equal(true);expect((await market.getAllNFTs())[0][0]).to.equal(accountB.address);expect((await market.getAllNFTs())[0][1]).to.equal(0);expect((await market.getAllNFTs())[0][2]).to.equal(price);expect((await market.getAllNFTs())[1][0]).to.equal(accountB.address);expect((await market.getAllNFTs())[1][1]).to.equal(1);expect((await market.getAllNFTs())[1][2]).to.equal(price);expect(await market.getOrderLength()).to.equal(2);expect((await market.connect(accountB).getMyNFTs())[0][0]).to.equal(accountB.address);expect((await market.connect(accountB).getMyNFTs())[0][1]).to.equal(0);expect((await market.connect(accountB).getMyNFTs())[0][2]).to.equal(price);expect((await market.connect(accountB).getMyNFTs())[1][0]).to.equal(accountB.address);expect((await market.connect(accountB).getMyNFTs())[1][1]).to.equal(1);expect((await market.connect(accountB).getMyNFTs())[1][2]).to.equal(price);});});