当我在终端上运行truffle test
时我得到以下错误Error: Attempting to run transaction which calls a contract function, but recipient address 0x3ad2c00512808bd7fafa6dce844a583621f3df87 is not a contract address
我不明白为什么我得到这个因为我的build
文件夹是正常的意思,如果我运行truffle migrate --reset
终端中的地址与构建文件中的地址相同。当我运行松露迁移它的工作原理。此外,每次我运行松露测试时,收件人地址总是会改变。我不知道该怎么做才能帮忙。
另外一件事只有在我使用代码selfdestruct(admin);
时才会发生,然后我收到此错误。 admin is = to msg.sender这是ganache中的第一个帐户所以我不知道什么是错的。
我正在使用this视频。我已经完成了这个家伙的所有其他视频,一切都很好,直到现在15:11他做了最后的测试,对他来说,它有效,但对我来说,它给了我上面的错误。
任何人,请帮忙
这些是我的测试(javascript)
var CinoCoin = artifacts.require("./CinoCoin.sol");
var CinoCoinSale = artifacts.require("./CinoCoinSale.sol");
contract('CinoCoinSale', function(accounts) {
var tokenInstance;
var tokenSaleInstance;
var admin = accounts[0];
var buyer = accounts[1];
var tokenPrice = 1000000000000000; // in wei 0.01 ether
var tokensAvailable = 750000;
var numberOfTokens;
it('initializes the contract with the correct values', function() {
return CinoCoinSale.deployed().then(function(instance) {
tokenSaleInstance = instance;
return tokenSaleInstance.address
}).then(function(address) {
assert.notEqual(address, 0x0, 'has contract address');
return tokenSaleInstance.tokenContract();
}).then(function(address) {
assert.notEqual(address, 0x0, 'has token contract address');
return tokenSaleInstance.tokenPrice();
}).then(function(price) {
assert.equal(price, tokenPrice, 'token price is correct');
});
});
it('facilitats token buying', function() {
return CinoCoin.deployed().then(function(instance) {
//Grab token instance first
tokenInstance = instance;
return CinoCoinSale.deployed();
}).then(function(instance) {
//Then grab token sale instance
tokenSaleInstance = instance;
//Provision 75% of all tokens to the token sale contract
return tokenInstance.transfer(tokenSaleInstance.address, tokensAvailable, { from: admin})
}).then(function(receipt) {
numberOfTokens = 10;
return tokenSaleInstance.buyTokens(numberOfTokens, { from: buyer, value: numberOfTokens * tokenPrice })
}).then(function(receipt) {
assert.equal(receipt.logs.length, 1, 'triggers one event');
assert.equal(receipt.logs[0].event, 'Sell', 'should be the "Sell" event');
assert.equal(receipt.logs[0].args._buyer, buyer, 'logs the account that purchased the tokens');
assert.equal(receipt.logs[0].args._amount, numberOfTokens, 'logs the number of tokens purchased');
return tokenSaleInstance.tokensSold();
}).then(function(amount) {
assert.equal(amount.toNumber(), numberOfTokens, 'increments the number of tokens sold');
return tokenInstance.balanceOf(buyer);
}).then(function(balance) {
assert.equal(balance.toNumber(), numberOfTokens);
return tokenInstance.balanceOf(tokenSaleInstance.address);
}).then(function(balance) {
assert.equal(balance.toNumber(), tokensAvailable - numberOfTokens);
//Try to buy tokens different from the ether value
return tokenSaleInstance.buyTokens(numberOfTokens, { from: buyer, value: 1 });
}).then(assert.fail).catch(function(error) {
assert(error.message.indexOf('revert') >= 0, 'msg.value must equal number of tokens in wei');
return tokenSaleInstance.buyTokens(800000, { from: buyer, value: numberOfTokens * tokenPrice });
}).then(assert.fail).catch(function(error) {
assert(error.message.indexOf('revert') >= 0, 'connot purchase more tokens than available');
});
});
it('ends token sale', function () {
return CinoCoin.deployed().then(function(instance) {
//Grab token instance first
tokenInstance = instance;
return CinoCoinSale.deployed();
}).then(function(instance) {
//Then grab token sale instance
tokenSaleInstance = instance;
//try to end sale from account other than admin
return tokenSaleInstance.endSale({ from: buyer });
}).then(assert.fail).catch(function(error) {
assert(error.message.indexOf('revert' >= 0, 'must be admin to end sale'));
//End sale as admin
return tokenSaleInstance.endSale({ from: admin });
}).then(function(receipt) {
return tokenInstance.balanceOf(admin);
}).then(function(balance) {
assert.equal(balance.toNumber(), 999990, 'returns all unsold cino coins to admin');
//Check that the token price was reset when selfFestruct was called
return tokenSaleInstance.tokenPrice();
}).then(function(price) {
assert.equal(price.toNumber(), 0, 'token price was reset');
});
});
});
这是我的合同代码(可靠性)
pragma solidity ^0.4.23;
import "./CinoCoin.sol";
contract CinoCoinSale {
address admin;
CinoCoin public tokenContract;
uint256 public tokenPrice;
uint256 public tokensSold;
event Sell(address _buyer, uint256 _amount);
function CinoCoinSale(CinoCoin _tokenContract, uint256 _tokenPrice) public {
//Assign an admin / an external account connected to the blockchain that has certain priviliges
admin = msg.sender;
//Assign token contract
tokenContract = _tokenContract;
//Token Price how much the token will cost
tokenPrice = _tokenPrice;
}
//multiply function for
function multiply(uint x, uint y) internal pure returns (uint z) {
require(y == 0 || (z = x * y) / y == x);
}
//Buy tokens
function buyTokens(uint256 _numberOfTokens) public payable {
//Require that the value is equal to tokens
require(msg.value == multiply(_numberOfTokens, tokenPrice));
//Require that there are enough tokens in the contrat
require(tokenContract.balanceOf(this) >= _numberOfTokens);
//Require the transfer is successful
require(tokenContract.transfer(msg.sender, _numberOfTokens));
//Keep track of number of tokens sold
tokensSold += _numberOfTokens;
//Trigger a sell event
Sell(msg.sender, _numberOfTokens);
}
//ending token CinoCoinSale
function endSale()public {
//Only an admin can end the end the sale
require(msg.sender == admin);
//Transfer the amount of token in the sale back to the admin
require(tokenContract.transfer(admin, tokenContract.balanceOf(this)));
//Destroy contract
selfdestruct(admin);
}
}
它说我的测试正在通过,当我评论出selfdestruct(admin);
所以它似乎是一个问题
谢谢您的帮助
很高兴您已经修复了错误。在查看代码时,我注意到测试文件很难遵循,因为有很大的承诺链。我将文件转换为async / await,将来可能更容易维护和调试。
我还注意到,您正尝试通过手动检查日志并捕获还原异常来断言发出的事件并进行还原。我实际上写了一个库来使这更容易,所以我也为此添加了代码。
该库可以使用npm安装:
npm install truffle-assertions
在此之后,新的测试代码应该工作。我希望这对你的Dapp开发有所帮助,祝你好运。
const CinoCoin = artifacts.require("CinoCoin");
const CinoCoinSale = artifacts.require("CinoCoinSale");
const truffleAssert = require("truffle-assertions");
contract('CinoCoinSale', function(accounts) {
let tokenInstance;
let tokenSaleInstance;
let admin = accounts[0];
let buyer = accounts[1];
let tokenPrice = 1000000000000000; // in wei 0.01 ether
let tokensAvailable = 750000;
it('initializes the contract with the correct values', async function() {
tokenInstance = await CinoCoin.deployed();
tokenSaleInstance = await CinoCoinSale.deployed();
assert.notEqual(tokenSaleInstance.address, 0x0, 'has contract address');
assert.notEqual(await tokenSaleInstance.tokenContract(), 0x0, 'has token contract address');
assert.equal(await tokenSaleInstance.tokenPrice(), tokenPrice, 'token price is correct');
assert.equal(await tokenSaleInstance.admin(), admin, 'admin is correct');
});
it('facilitates token buying', async function() {
tokenInstance = await CinoCoin.deployed();
tokenSaleInstance = await CinoCoinSale.deployed();
await tokenInstance.transfer(tokenSaleInstance.address, tokensAvailable, { from: admin });
const numberOfTokens = 10;
const receipt = await tokenSaleInstance.buyTokens(numberOfTokens, { from: buyer, value: numberOfTokens * tokenPrice });
truffleAssert.eventEmitted(receipt, 'Sell', (ev) => {
return ev._buyer === buyer && ev._amount.toNumber() === numberOfTokens;
});
const tokensSold = await tokenSaleInstance.tokensSold();
assert.equal(tokensSold.toNumber(), numberOfTokens, 'increments the number of tokens sold');
const buyerBalance = await tokenInstance.balanceOf(tokenSaleInstance.address);
assert.equal(buyerBalance.toNumber(), numberOfTokens);
const tokenSaleBalance = await tokenInstance.balanceOf(tokenSaleInstance.address);
assert.equal(tokenSaleBalance.toNumber(), tokensAvailable - numberOfTokens);
truffleAssert.reverts(
tokenSaleInstance.buyTokens(numberOfTokens, { from: buyer, value: 1 }),
null,
'msg.value must equal number of tokens in wei'
);
truffleAssert.reverts(
tokenSaleInstance.buyTokens(800000, { from: buyer, value: numberOfTokens * tokenPrice }),
null,
'connot purchase more tokens than available'
);
});
it('ends token sale', async function () {
tokenInstance = await CinoCoin.deployed();
tokenSaleInstance = await CinoCoinSale.deployed();
truffleAssert.reverts(tokenSaleInstance.endSale({ from: buyer }), null, 'must be admin to end sale');
await tokenSaleInstance.endSale({ from: admin });
const adminBalance = await tokenInstance.balanceOf(admin);
assert.equal(adminBalance.toNumber(), 999990, 'returns all unsold cino coins to admin');
const tokenPrice = await tokenSaleInstance.tokenPrice();
assert.equal(tokenPrice.toNumber(), 0, 'token price was reset');
});
});