初始化项目 1 2 3 4 ~ $ mkdir app ~ $ cd app ~/app $ npm init -y ~/app $ truffle init
1 2 3 4 5 6 7 8 9 10 11 ~/app $ tree . |-- contracts | `-- Migrations.sol |-- migrations | `-- 1_initial_migration.js |-- package.json |-- test `-- truffle-config.js 3 directories, 4 files
VSCode中打开项目目录
安装Solidity扩展
新建.sol合约文件并安装依赖包 1 2 ~/app $ touch contracts/TestNFT.sol ~/app $ npm install @openzeppelin/contracts
1 2 3 4 5 6 7 8 9 10 11 12 13 ~/app $ tree -I "node_modules" . |-- contracts | |-- Migrations.sol | `-- TestNFT.sol |-- migrations | `-- 1_initial_migration.js |-- package-lock.json |-- package.json |-- test `-- truffle-config.js 3 directories, 6 files
在VSCode中编写合约 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 // SPDX-License-Identifier: UNLICENSED pragma solidity >=0.4.22 <0.9.0; import "@openzeppelin/contracts/token/ERC721/ERC721.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/utils/Counters.sol"; import "@openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol"; contract TestNFT is ERC721URIStorage, Ownable{ using Counters for Counters.Counter; Counters.Counter private _tokenIds; mapping(uint => uint) public priceMap; event Minted(address indexed minter, uint price, uint nftID, string uri); constructor() ERC721("TestNFT", "NFT"){} function mintNFT(string memory _uri, address _toAddress, uint _price) public onlyOwner returns (uint256) { _tokenIds.increment(); uint256 newItemId = _tokenIds.current(); priceMap[newItemId] = _price; _safeMint(_toAddress, newItemId); _setTokenURI(newItemId, _uri); emit Minted(_toAddress, _price, newItemId, _uri); return newItemId; } }
新建合约测试文件并安装依赖库 1 2 3 4 5 6 ~/app $ touch test/testnft_test.js ~/app $ npm install chai ~/app $ npm install bignumber.js ~/app $ npm install dotenv ~/app $ npm install @truffle/hdwallet-provider ~/app $ npm install @openzeppelin/test-environment
1 2 3 4 5 6 7 8 9 10 11 12 13 14 ~/app $ tree -I "node_modules" . |-- contracts | |-- Migrations.sol | `-- TestNFT.sol |-- migrations | `-- 1_initial_migration.js |-- package-lock.json |-- package.json |-- test | `-- testnft_test.js `-- truffle-config.js 3 directories, 7 file
编写合约测试文件 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 const { web3 } = require ("@openzeppelin/test-environment" );const { expect } = require ("chai" );const { BigNumber } = require ("bignumber.js" );const TestNFTContract = artifacts.require ("TestNFT" );contract ("TestNFT" , (accounts ) => { describe ("testnft" , () => { beforeEach (async () => { this .contract = await TestNFTContract .new ({ from : accounts[0 ] }); }); it ("It should mint NFT successfully" , async () => { const tokenURI = "ipfs://QmXzG9HN8Z4kFE2yHF81Vjb3xDYu53tqhRciktrt25JpAN" ; const mintResult = await this .contract .mintNFT ( tokenURI, accounts[0 ], web3.utils .toWei ("12" , "ether" ), { from : accounts[0 ] } ); console .log (mintResult); const price = web3.utils .fromWei ( new BigNumber (mintResult.logs [1 ].args .price ).toString (), "ether" ); expect (mintResult.logs [1 ].args .nftID .toNumber ()).to .eq (1 ); expect (mintResult.logs [1 ].args .uri ).to .eq (tokenURI); expect (mintResult.logs [1 ].args .minter ).to .eq (accounts[0 ]); expect (price).to .eq ("12" ); }); }); describe ("owner()" , () => { it ("returns the address of the owner" , async () => { const testntf = await TestNFTContract .deployed (); const owner = await testntf.owner (); assert (owner, "the current owner" ); }); it ("matches the address that originally deployed the contract" , async () => { const testntf = await TestNFTContract .deployed (); const owner = await testntf.owner (); const expected = accounts[0 ]; assert.equal (owner, expected, "matches address used to deploy contract" ); }); }); });
修改truffle配置文件 合约在正式部署之前需要在我们之前建立的Azure Quorum测试环境中进行测试，truffle init在初始化项目的时候生成了一个配置文件：truffle-config.js，需要修改这个配置文件添加Quorum测试环境的网络配置。
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 const HDWalletProvider = require ("@truffle/hdwallet-provider" );module .exports = { networks : { development : { provider : () => new HDWalletProvider (mnemonic, `https://chain.azure-api.net/testrpc` ), network_id : "1337" , } }, mocha : {}, compilers : { solc : { version : "0.8.14" , } }, };
运行测试 1 ~/app $ truffle test --network development
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Compiling your contracts... =========================== > Compiling ./contracts/Migrations.sol > Compiling ./contracts/TestNFT.sol > Compiling @openzeppelin/contracts/token/ERC721/ERC721.sol > Compiling @openzeppelin/contracts/token/ERC721/IERC721.sol > Compiling @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol > Compiling @openzeppelin/contracts/token/ERC721/extensions/ERC721URIStorage.sol > Compiling @openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol > Compiling @openzeppelin/contracts/utils/Address.sol > Compiling @openzeppelin/contracts/utils/Context.sol > Compiling @openzeppelin/contracts/utils/Counters.sol > Compiling @openzeppelin/contracts/utils/Strings.sol > Compiling @openzeppelin/contracts/utils/introspection/ERC165.sol > Compiling @openzeppelin/contracts/utils/introspection/IERC165.sol > Artifacts written to /tmp/test--792396-qihnnT01oLfP > Compiled successfully using: - solc: 0.8.14+commit.80d49f37.Emscripten.clang Contract: TestNFT testnft ✔ It should mint NFT successfully (9142ms) owner() ✔ returns the address of the owner (1069ms) ✔ matches the address that originally deployed the contract (1090ms) 3 passing (21s)
