#jest/no-deprecated-functions

#Configuration

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

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

#Rule Details

Jest sometimes deprecates globals and jest helpers in favor of newer APIs. This rule flags calls to those deprecated members and reports a replacement. A fix rewrites the callee to the suggested API; bracket-style access is preserved (for example jest['genMockFromModule'] becomes jest['createMockFromModule']).

Which names are considered deprecated depends on the Jest version rslint uses for the file (from settings.jest.version or the resolved package.json dependency). A symbol is only reported once your configured major version is at least the version that deprecated it:

If the resolved Jest version is too old for any of these deprecations, the rule does not report them.

Examples of incorrect code for this rule (assuming a Jest version where the corresponding API is deprecated):

jest.resetModuleRegistry();
jest.addMatchers({});
require.requireMock('a');
require.requireActual('a');
jest.runTimersToTime(1000);
jest.genMockFromModule('m');

Examples of correct code for this rule:

jest.resetModules();
expect.extend({});
jest.requireMock('a');
jest.requireActual('a');
jest.advanceTimersByTime(1000);
jest.createMockFromModule('m');

#Original Documentation

• jest/no-deprecated-functions