Question

我想编写一个测试用例来检查我的withdraw函数是否正常工作。代码如下所示：

function withdraw(uint _amount, address _to) public onlyAuthors {
  require(!isNullAddress(_to));
  require(_amount <= this.balance);

  _to.transfer(_amount);
}

但在测试用例中，似乎this.balance或[some_address].balance不可用。有没有什么好方法可以在单元测试中测试这种功能？

Answer 1

1）签订合同工厂：

import web3 from './web3';
import contractFactory from './build/ContractFactory.json';

const instance = new web3.eth.Contract(
  JSON.parse(contractFactory.interface),
  '<address of deployed contract>'
);

export default instance;

2）在您的测试中，您新建合同并执行必要的操作以使您想要测试的状态达到平衡。在您的测试文件中：

const compiledFactory = require('../ethereum/build/ContractFactory.json');
const compiledContract = require('../ethereum/build/Contract.json');

beforeEach(async () => {
  accounts = await web3.eth.getAccounts();
  factory = await new web3.eth.Contract(JSON.parse(compiledFactory.interface))
    .deploy({ data : compiledFactory.bytecode })
    .send({ from : accounts[0], gas : '1000000' });
  factory.setProvider(provider);

  await factory.methods.createContract('100').send({
    from : accounts[ 0 ],
    gas : '1000000'
  });

等。此步骤将根据您的合同而有所不同。

3）尝试与合同互动（E.G。尝试提取超过您允许的金额或其他任何金额。然后期待您正在测试的行为。

Answer 2

我认为您可以使用$credentials = array( 'key' => env('AWS_IAM_KEY', ''), 'secret' => env('AWS_IAM_SECRET', '') ); //2014-06-30 $client = CognitoIdentityClient::factory(array('region' => env('AWS_REGION',''), 'version' => 'latest', $credentials)); $result = $client->adminInitiateAuth([ 'AuthFlow' => 'ADMIN_NO_SRP_AUTH', 'ClientId' => COGNITO_APP_CLIENT_ID, 'UserPoolId' => COGNITO_USER_POOL_ID, 'AuthParameters' => [ 'USERNAME' => "name", 'PASSWORD' => 'password', ], ]); $accessToken = $result->get('AuthenticationResult')['AccessToken'];来检索合约余额。

检查＆＃34;撤销＆＃34;合同中的功能？

2 个答案: