#no-confusing-set-timeout

#Configuration

import { defineConfig, jestPlugin } from '@rslint/core';

export default defineConfig([
  jestPlugin.configs.recommended,
  {
    rules: {
      'jest/no-confusing-set-timeout': 'error',
    },
  },
]);

#Rule Details

Disallow confusing usages of jest.setTimeout. In a single test file Jest applies only the last jest.setTimeout call that runs before any tests execute; later calls and calls inside suites or cases do not change the timeout the way many authors expect. This rule flags patterns that look file- or suite-specific but are misleading.

rslint walks each Jest API call site (including jest imported from @jest/globals and renamed bindings such as Jest.setTimeout). For every jest.setTimeout call it may report:

• globalSetTimeout: the call is not at module/global top level (for example inside a describe / test / it callback, a beforeEach body, a block statement, or a class).
• orderSetTimeout: another Jest API (describe, test, it, hooks, expect, and so on) appears earlier in the same file.
• multipleSetTimeouts: jest.setTimeout is invoked more than once in the file (only the last pre-test call matters to Jest).

Plain setTimeout and window.setTimeout are not checked.

Examples of incorrect code for this rule:

describe('test foo', () => {
  jest.setTimeout(1000);
  it('test-description', () => {
    // test logic
  });
});

describe('test bar', () => {
  it('test-description', () => {
    jest.setTimeout(1000);
    // test logic
  });
});

test('foo-bar', () => {
  jest.setTimeout(1000);
});

describe('unit test', () => {
  beforeEach(() => {
    jest.setTimeout(1000);
  });
});

jest.setTimeout(1000);
describe('suite', () => {
  it('case', () => {});
});
jest.setTimeout(800);

jest.setTimeout(800);
jest.setTimeout(900);

import { jest } from '@jest/globals';
{
  jest.setTimeout(800);
}

Examples of correct code for this rule:

jest.setTimeout(500);
test('test test', () => {
  // do some stuff
});

jest.setTimeout(1000);
describe('test bar bar', () => {
  it('test-description', () => {
    // test logic
  });
});

jest.setTimeout(1000);
window.setTimeout(60000);
setTimeout(1000);

#Original Documentation

• jest/no-confusing-set-timeout