webhook-action/node_modules/eslint-plugin-jest/docs/rules/prefer-hooks-on-top.md
Joel Male 1ada95e04a
v2.0.0 (#12)
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2020-08-26 10:52:47 +10:00

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# Suggest having hooks before any test cases (`prefer-hooks-on-top`)
All hooks should be defined before the start of the tests
## Rule Details
Examples of **incorrect** code for this rule
```js
/* eslint jest/prefer-hooks-on-top: "error" */
describe('foo', () => {
beforeEach(() => {
//some hook code
});
test('bar', () => {
some_fn();
});
beforeAll(() => {
//some hook code
});
test('bar', () => {
some_fn();
});
});
// Nested describe scenario
describe('foo', () => {
beforeAll(() => {
//some hook code
});
test('bar', () => {
some_fn();
});
describe('inner_foo', () => {
beforeEach(() => {
//some hook code
});
test('inner bar', () => {
some_fn();
});
test('inner bar', () => {
some_fn();
});
beforeAll(() => {
//some hook code
});
afterAll(() => {
//some hook code
});
test('inner bar', () => {
some_fn();
});
});
});
```
Examples of **correct** code for this rule
```js
/* eslint jest/prefer-hooks-on-top: "error" */
describe('foo', () => {
beforeEach(() => {
//some hook code
});
// Not affected by rule
someSetup();
afterEach(() => {
//some hook code
});
test('bar', () => {
some_fn();
});
});
// Nested describe scenario
describe('foo', () => {
beforeEach(() => {
//some hook code
});
test('bar', () => {
some_fn();
});
describe('inner_foo', () => {
beforeEach(() => {
//some hook code
});
test('inner bar', () => {
some_fn();
});
});
});
```