truffleでEthereum Baseのdappを作る(3) |

４）単体TEST
この段階で、Remix を使ってTESTもできるが
ちゃんと test.js を使ってTESTする
＊＊TEST仕様書のもとにもなる
先ずは必要なものを npm install する

	npm install --save ganache-cli mocha fs-extra web3@1.0.0-beta.26

1	npm install --save ganache-cli mocha fs-extra web3@1.0.0-beta.26

ganache-cli:単体TEST用の network node:
mocha:javascriptのTESTモジュール
fs-extra:FileSystem モジュール
web3@1.0.0-beta.26:javascriptを動かすモジュール
Webでdappを動かす時も使う
1.0.0-beta.26 を使うのは非同期処理を簡単にするため
** asinc , await を使う
solc:solidity Compiler はtruffle組み込みのものでcompile済なのでここでは不要

cd ./test に hoge.js を書いていく
File名は特に制約はない
./test/**.js と ./test/ ディレクトリに置くことがPOINT

	const assert = require('assert');
	const ganache = require('ganache-cli');
	const Web3 = require('web3');

	const provider = ganache.provider();
	const web3 = new Web3(provider);

	const compiledMyProject =require('/home/aoki/truffle/myproject/build/contracts/MyProject.json');

	let myproject;
	let accounts;
	beforeEach(async ()=>{
	  accounts = await web3.eth.getAccounts();
	  myproject = await new web3.eth.Contract(compiledMyProject.abi)
	    .deploy({data: compiledMyProject.bytecode})
	    .send({ from: accounts[0], gas: 5000000});
	});

	describe('myproject Contract', () => {

	  it('deploys a contract',() =>{
	    console.log(accounts);
	    assert.ok(myproject.options.address);
	  });

	  it('Initial message の確認',async() =>{
	    const msg = await myproject.methods.message().call({
	        from:accounts[0]
	      });
	    assert.equal(msg,'Initial Message','STEP01');
	  });
	});

const assert = require('assert');

const ganache = require('ganache-cli');

const Web3 = require('web3');

const provider = ganache.provider();

const web3 = new Web3(provider);

const compiledMyProject =require('/home/aoki/truffle/myproject/build/contracts/MyProject.json');

let myproject;

let accounts;

beforeEach(async ()=>{

accounts = await web3.eth.getAccounts();

myproject = await new web3.eth.Contract(compiledMyProject.abi)

.deploy({data: compiledMyProject.bytecode})

.send({ from: accounts[0], gas: 5000000});

});

describe('myproject Contract', () => {

it('deploys a contract',() =>{

console.log(accounts);

assert.ok(myproject.options.address);

});

it('Initial message の確認',async() =>{

const msg = await myproject.methods.message().call({

from:accounts[0]

});

assert.equal(msg,'Initial Message','STEP01');

});