FISCOBCOS入门（十）Truffle自定义测试helloworld

在windos终端内安装truffle

npm install -g truffle

truffle --version

出现上图情况也没问题

下面就可以进行我们的操作了

创建一个文件truffle

创建一个空工程

truffle init

在contracts内加入HelloWorld合约

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
contract HelloWorld {
string private greeting;
// 构造函数，设置初始问候语
constructor() {
    greeting = "Hello World";
}

// 获取当前的问候语
function get() public view returns (string memory) {
    return greeting;
}

// 设置新的问候语
function set(string memory newGreeting) public {
    greeting = newGreeting;
}

}

在migration内编写迁移脚本

const HelloWorld = artifacts.require("HelloWorld");

module.exports =  async function (deployer) {
  // 部署 HelloWorld 合约
  await deployer.deploy(HelloWorld);
};

在test文件内添加测试脚本

const Helloworld = artifacts.require("HelloWorld");
contract("HelloWorld", async() => {
    let newData="123";
  
    it("Test helloWorld get", async () => {
      const hello = await Helloworld.deployed();
      let name = await hello.get();
      console.log("init data",name);
        assert.equal(name,"Hello World","Test fail");
      });
      
      it("Test helloWorld set", async () => {
        const hello = await Helloworld.deployed();
      
       
        await hello.set(newData);
      
      
      });
      
      it("Test HelloWorld get2", async () => {
      
        const hello = await Helloworld.deployed();
        let name = await hello.get();
       
        console.log("Updated data:", name);     
        assert.equal(name,"123","Test fail");
      });
  
});

更改文件truffle-config.js