├── README.md
├── compile.js
├── contracts
    └── inbox.sol
├── package-lock.json
├── package.json
└── test
    └── inbox.test.js


/README.md:
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1 | You can add changes to contracts.sol
2 | The contract have some issues
3 | 


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/compile.js:
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1 | const path= require ('path');
2 | const fs= require('fs');
3 | const solc = require('solc');
4 | const inboxPath= path.resolve(__dirname,'contracts','inbox.sol');
5 | const source =fs.readFileSync(inboxPath , 'utf-8');
6 | 
7 | module.exports = solc.compile(source , 1).contracts [':Inbox'];


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/contracts/inbox.sol:
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 1 | // SPDX-License-Identifier: MIT
 2 | 
 3 | pragma solidity >=0.4.17 ;
 4 | 
 5 | contract Inbox {
 6 |     string public message;
 7 |     
 8 |     function Inbox(string initialMessage) public {
 9 |         message = initialMessage;
10 |     }
11 |     
12 |     function setMessage(string newMessage) public {
13 |         message = newMessage;
14 |     }
15 |     
16 | }


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/package.json:
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 1 | {
 2 |   "name": "inbox",
 3 |   "version": "1.0.0",
 4 |   "description": "",
 5 |   "main": "index.js",
 6 |   "scripts": {
 7 |     "test": "mocha"
 8 |   },
 9 |   "author": "",
10 |   "license": "ISC",
11 |   "dependencies": {
12 |     "ganache-cli": "^6.12.2",
13 |     "mocha": "^10.0.0",
14 |     "solc": "^0.4.17",
15 |     "web3": "^1.7.5"
16 |   }
17 | }
18 | 


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/test/inbox.test.js:
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 1 | const assert = require('assert');
 2 | const ganache = require('ganache-cli');
 3 | const Web3 = require('web3');
 4 | const web3 = new Web3 (ganache.provider());
 5 |  let accounts;
 6 |  let inbox;
 7 |  const {interface , bytecode}= require('../compile');
 8 | 
 9 | beforeEach(async ()=>
10 | {
11 |   accounts = await web3.eth.getAccounts()
12 |   inbox = await new web3.eth.Contract(JSON.parse(interface))
13 |   .deploy({data : bytecode, arguments : ['Hi there']})
14 |   .send({from : accounts[0], gas:'1000000'})
15 | });
16 | 
17 | describe('inbox' , ()=>
18 | {
19 |    it('deploys a contract', ()=> {
20 | 
21 |    assert.ok(inbox.options.address);
22 |    });
23 | 
24 |    it('has a default message', async ()=>
25 |    {
26 |      const message= await inbox.methods.message().call();
27 |      assert.equal(message, 'Hi there');
28 |    });
29 | });
30 | /*describe('Car',()=>
31 | {
32 |    it('can park' , ()=>
33 |    {
34 |      const car=new Car();
35 |      assert.equal(car.park(),'stopped');
36 |    } );
37 | } );*/


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