blocks|key|2287213|text|npm卸载-g松露|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2287214|npm安装-g松露@5.1.10(总是让我重回正轨)|2287215|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|F|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|G|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|H|8|@]|9|@]|A|$]]]|E|$]]

npm uninstall -g truffle

npm install -g truffle@5.1.10 (always got me back on track)

blocks|key|1652367|text|此外，当使用几个使用异步测试帮助程序而不使用等待(例如，OpenZeppelin测试助手:+expectEvent，expectRevert)的测试套件时，会出现此问题。|type|unstyled|depth|inlineStyleRanges|offset|length|style|BOLD|entityRanges|data|1652368|举个例子：|1652369|合同|1652370|//+SPDX-License-Identifier:+MIT
pragma+solidity+%5E0.8.3;

contract+Test03+{
++++address+public+owner;
++++int32+public+id;

++++event+ContractCreated();

++++constructor()+{
++++++++owner+=+msg.sender;

++++++++emit+ContractCreated();
++++}

++++function+doSmth(int32+_id)+public+{
++++++++require(id+!=+0,+"id+is+zero");
++++++++id=+_id;
++++}
}|code-block|syntax|javascript|1652371|测试|1652372|const+{+expectEvent,+expectRevert+}+=+require('@openzeppelin/test-helpers');

const+TestContract+=+artifacts.require('Test03');

contract('Test03',+function+(accounts)+{
++++const+[owner]+=+accounts;
++++const+txParams+=+{+from:+owner+};

++++beforeEach(async+function+()+{
++++++++this.testContract+=+await+TestContract.new(txParams);
++++});

++++describe('construction',+function+()+{
++++++++it('initial+state',+async+function+()+{
++++++++++++expect(await+this.testContract.owner()).to.equal(owner);

++++++++++++//+!!+DONT+FORGET+await+before+expectEvent-call+<<------------------------------
++++++++++++await+expectEvent.inConstruction(this.testContract,+'ContractCreated');
++++++++});
++++});

++++describe('doSmth',+function+()+{
++++++it('fail+when+passed+zero+id',+async+function+()+{

++++++++//+!!+DONT+FORGET+await+before+expectRevert-call+<<------------------------------
++++++++await+expectRevert(
++++++++++this.testContract.doSmth(0,+txParams),
++++++++++"id+is+zero");
++++++});
++});++++
});|1652373|package.json|1652374|{
..
++"devDependencies":+{
++++"@openzeppelin/test-helpers":+"%5E0.5.10"
++}
..
}|1652375|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.openzeppelin.com/test-helpers/0.5/api^0|M|2|S|16|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|14|8|@$9|15|A|16|B|C]]|D|@$9|17|A|18|1|19]]|E|$]]|$1|F|3|G|5|6|7|1A|8|@]|D|@]|E|$]]|$1|H|3|I|5|6|7|1B|8|@]|D|@]|E|$]]|$1|J|3|K|5|L|7|1C|8|@]|D|@]|E|$M|N]]|$1|O|3|P|5|6|7|1D|8|@]|D|@]|E|$]]|$1|Q|3|R|5|L|7|1E|8|@]|D|@]|E|$M|N]]|$1|S|3|T|5|6|7|1F|8|@]|D|@]|E|$]]|$1|U|3|V|5|L|7|1G|8|@]|D|@]|E|$M|N]]|$1|W|3|-4|5|6|7|1H|8|@]|D|@]|E|$]]]|X|$Y|$5|Z|10|11|E|$12|13]]]]

Also, this issue occurs when used several test suites that use async test-helpers without await (for example, <a href="https://docs.openzeppelin.com/test-helpers/0.5/api" rel="nofollow noreferrer">OpenZeppelin Test Helpers: expectEvent, expectRevert</a>).
Consider example:
contract
<pre class="lang-cs prettyprint-override"><code>// SPDX-License-Identifier: MIT
pragma solidity ^0.8.3;

contract Test03 {
 address public owner;
 int32 public id;

 event ContractCreated();

 constructor() {
 owner = msg.sender;

 emit ContractCreated();
 }

 function doSmth(int32 _id) public {
 require(id != 0, &quot;id is zero&quot;);
 id= _id;
 }
}
</code></pre>
test
<pre class="lang-js prettyprint-override"><code>const { expectEvent, expectRevert } = require('@openzeppelin/test-helpers');

const TestContract = artifacts.require('Test03');

contract('Test03', function (accounts) {
 const [owner] = accounts;
 const txParams = { from: owner };

 beforeEach(async function () {
 this.testContract = await TestContract.new(txParams);
 });

 describe('construction', function () {
 it('initial state', async function () {
 expect(await this.testContract.owner()).to.equal(owner);

 // !! DONT FORGET await before expectEvent-call &lt;&lt;------------------------------
 await expectEvent.inConstruction(this.testContract, 'ContractCreated');
 });
 });

 describe('doSmth', function () {
 it('fail when passed zero id', async function () {

 // !! DONT FORGET await before expectRevert-call &lt;&lt;------------------------------
 await expectRevert(
 this.testContract.doSmth(0, txParams),
 &quot;id is zero&quot;);
 });
 }); 
});
</code></pre>
package.json
<pre class="lang-json prettyprint-override"><code>{
..
 &quot;devDependencies&quot;: {
 &quot;@openzeppelin/test-helpers&quot;: &quot;^0.5.10&quot;
 }
..
}
</code></pre>

When I tested my contract, I got this error ""before all" hook: prepare suite:"

Does anyone know how to solve this error?

This is my dependencies.
"truffle": "5.0.7",
"web3": "1.0.0-beta.46"

How to solve the error ""before all" hook: prepare suite:"

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

教程

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云智能顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

聚焦“写作效率、视觉美观与运行性能”三方面进行全面升级，为您提供更高效、稳定的创作环境

社区富文本&Markdown编辑器全新改版上线，欢迎大家体验!

诚挚邀请您参与本次调研，分享您的真实使用感受与建议。您的反馈至关重要，感谢您的支持与参与！

社区新版编辑器体验调研

当我测试我的合同时，我得到了这个错误“在所有”钩子:准备套件：“有人知道如何解决这个错误吗？这是我的依赖关系。“松露”："5.0.7"，"web3"："1.0.0-beta.46“

问如何解决“一切”之前的错误:准备套件：
EN

Stack Overflow用户

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问如何解决“一切”之前的错误:准备套件：EN