浅谈：swap数字货币交易所系统开发代码呈现方案（成熟源码）

const path = require('path');
const assert = require('assert');
const Web3 = require('web3')
const ganache = require('ganache-cli')
//const BigNumber = require('bignumber.js')
const web3 = new Web3(ganache.provider())
// 引入合约的json
const CourseList = require(path.resolve(__dirname, '../src/compiled/CourseList.json'))
const Course = require(path.resolve(__dirname, '../src/compiled/Course.json'))


// 定义几个全局变量，所有测试都需要
let accounts
// 实例
let courseList
let course

describe('测试课程的智能', () => {

    before(async () => {
        // 测试前的数据初始化
        accounts = await web3.eth.getAccounts()

        console.log(accounts)
        // 1. 虚拟部署一个合约
        courseList = await new web3.eth.Contract(JSON.parse(CourseList.interface))
            .deploy({ data: CourseList.bytecode })
            .send({
                // 最后一个是创建者——重点
                from: accounts[9],
                gas: '5000000'
            })

    })

    it('合约部署成功', () => {
        assert.ok(courseList.options.address)
    })

    it('测试添加课程', async () => {
        const oldaddress = await courseList.methods.getCourse().call()
        assert.equal(oldaddress.length, 0)
        await courseList.methods.createCourse(
            '蜗牛的React课程'
        )
            .send({
                from: accounts[0],
                gas: '5000000'
            })
        const address = await courseList.methods.getCourse().call()
        assert.equal(address.length, 1)
        console.log(address)

    })

    it("添加课程的属性", async () => {
        const [address] = await courseList.methods.getCourse().call()
        // 添加的课程合约的地址
        course = await new web3.eth.Contract(JSON.parse(Course.interface), address)
        const name = await course.methods.name().call()
        assert.equal(name, '蜗牛的React课程')
    })



    //删除功能
    it("只能ceo能删", async () => {
        await courseList.methods.createCourse(
            '蜗牛的Vue课程'
        )
            .send({
                from: accounts[0],
                gas: '5000000'
            })
        const address = await courseList.methods.getCourse().call()
        assert.equal(address.length, 2)

      await courseList.methods.removeCourse(0).send({
        from:accounts[9],
        gas:'5000000'
      })
      const address1 = await courseList.methods.getCourse().call()
      console.log(address1)
      assert.equal(address1.length,1)
      
    })

})