Jest dynamic import. .

Jest dynamic import. This module can be imported in your test or setup files to make sure any component created with next/dynamic is added to a queue, which can then be flushed with the exported preloadAll function. Jun 2, 2020 · so I have a react component that uses: const MyPage = DynamicImport ( { id: 'MyPage', loader: () => import ('. To mock modules in ESM, you need to use require or dynamic import() after jest. . How do you mock both Success and Failing promise cases for this dynamic import using Jest to make sure each method (successMethod and errorMethod) are called when resolving or failing respectively?. /pages/MyPage/MyPageWrapper'), }); and jest complains that my test isn't covering Sep 26, 2024 · In conclusion, testing code splitting and dynamic imports with Jest can be challenging, but with these strategies in your toolbox, you’ll be well-equipped to tackle even the most complex scenarios. mock calls to load the mocked modules - the same applies to modules which load the mocked modules. Apr 6, 2025 · Implement the steps highlighted in this guide, and you’ll have a robust testing strategy for dynamic imports! Oct 24, 2022 · In cases where you have this pattern (hopefully we're not doing this too often?), the simplest solution is to mock the component in which the dynamic import is happening in your jest mocks folder without dynamic imports. fwiia sfccun ieom zvcjji ghd cgyo tcwjub bnirn udhle tsnc