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