flying-hero
96f6318101
新增: - backend/venv/ - Python 虚拟环境 - backend/start.sh - 启动脚本（使用虚拟环境） - backend/requirements.txt - 依赖列表 - .gitignore - 忽略虚拟环境和缓存文件 说明: - 每个项目使用独立虚拟环境 - 避免依赖冲突 - 启动脚本自动创建和激活虚拟环境
121 lines
1.9 KiB
Markdown
121 lines
1.9 KiB
Markdown
# Suggest having hooks before any test cases (`prefer-hooks-on-top`)
|
|
|
|
While hooks can be setup anywhere in a test file, they are always called in a
|
|
specific order which means it can be confusing if they're intermixed with test
|
|
cases.
|
|
|
|
This rule helps to ensure that hooks are always defined before test cases.
|
|
|
|
## Rule Details
|
|
|
|
Examples of **incorrect** code for this rule
|
|
|
|
```js
|
|
/* eslint jest/prefer-hooks-on-top: "error" */
|
|
|
|
describe('foo', () => {
|
|
beforeEach(() => {
|
|
seedMyDatabase();
|
|
});
|
|
|
|
it('accepts this input', () => {
|
|
// ...
|
|
});
|
|
|
|
beforeAll(() => {
|
|
createMyDatabase();
|
|
});
|
|
|
|
it('returns that value', () => {
|
|
// ...
|
|
});
|
|
|
|
describe('when the database has specific values', () => {
|
|
const specificValue = '...';
|
|
|
|
beforeEach(() => {
|
|
seedMyDatabase(specificValue);
|
|
});
|
|
|
|
it('accepts that input', () => {
|
|
// ...
|
|
});
|
|
|
|
it('throws an error', () => {
|
|
// ...
|
|
});
|
|
|
|
afterEach(() => {
|
|
clearLogger();
|
|
});
|
|
beforeEach(() => {
|
|
mockLogger();
|
|
});
|
|
|
|
it('logs a message', () => {
|
|
// ...
|
|
});
|
|
});
|
|
|
|
afterAll(() => {
|
|
removeMyDatabase();
|
|
});
|
|
});
|
|
```
|
|
|
|
Examples of **correct** code for this rule
|
|
|
|
```js
|
|
/* eslint jest/prefer-hooks-on-top: "error" */
|
|
|
|
describe('foo', () => {
|
|
beforeAll(() => {
|
|
createMyDatabase();
|
|
});
|
|
|
|
beforeEach(() => {
|
|
seedMyDatabase();
|
|
});
|
|
|
|
afterAll(() => {
|
|
clearMyDatabase();
|
|
});
|
|
|
|
it('accepts this input', () => {
|
|
// ...
|
|
});
|
|
|
|
it('returns that value', () => {
|
|
// ...
|
|
});
|
|
|
|
describe('when the database has specific values', () => {
|
|
const specificValue = '...';
|
|
|
|
beforeEach(() => {
|
|
seedMyDatabase(specificValue);
|
|
});
|
|
|
|
beforeEach(() => {
|
|
mockLogger();
|
|
});
|
|
|
|
afterEach(() => {
|
|
clearLogger();
|
|
});
|
|
|
|
it('accepts that input', () => {
|
|
// ...
|
|
});
|
|
|
|
it('throws an error', () => {
|
|
// ...
|
|
});
|
|
|
|
it('logs a message', () => {
|
|
// ...
|
|
});
|
|
});
|
|
});
|
|
```
|