嗨,我是智能合约领域的新手,并且我遇到了与摩卡有关的问题。这是我正在从事的测试:
-EDIT-
const UsersContract = artifacts.require("../contracts/UsersContract.sol");
contract("TestUsersContract", async accounts => {
let instance;
beforeEach('setup contract for each test', async () => {
instance = await UsersContract.deployed();
});
it('should retrieve User', async () => {
instance.join(1, "John Doe");
instance.send({ from: accounts[0], gas: 50000 });
let user = await instance.getUser(accounts[0]);
assert.equal(user[0].toNumber(), 1);
assert.equal(user[1], 'John Doe');
});
});
这引发了以下错误:
1) Uncaught Error: the string "abort(Error: Given input \"[object Object]\" is not a number.). Build with -s ASSERTIONS=1 for more info." was thrown, throw an Error :)
2) Error: done() called multiple times in hook
我不知道为什么,但是当我将测试重构为非异步版本时:
it('should retrieve User', () => {
instance.join(1, "John Doe");
instance.send({ from: accounts[0], gas: 50000 });
instance.getUser(accounts[0]).then( user => {
assert.equal(user[0].toNumber(), 1);
assert.equal(user[1], 'John Doe');
});
});
一切顺利,测试按预期进行。为什么会这样呢?可以在这里完成async/await
版本吗?还是我必须始终坚持使用.then()
版本?
有点启发是很好的,谢谢。