@rocketmakers/api-swr/dist/esm/hooks/useClearCache.spec.js

Rocketmakers front-end library for parsing a generated Typescript API client into a set of configurable React hooks for fetching and mutating data.

import { renderHook } from '@testing-library/react';
import { useClearCache } from './useClearCache';
// key getter
const keyGetter = jest.fn().mockReturnValue(['key-1', 'key-2', 'key-3']);
// mutate
const mutate = jest.fn();
// Mock SWR
jest.mock('swr', () => {
    const actual = jest.requireActual('swr');
    return Object.assign(Object.assign({}, actual), { useSWRConfig: jest.fn(() => ({
            cache: {
                keys: keyGetter,
                get: jest.fn(),
                set: jest.fn(),
                delete: jest.fn(),
            },
            mutate,
        })) });
});
describe('useClearCache', () => {
    it('should provide a function to clear the SWR cache when executed', async () => {
        mutate.mockClear();
        const { result } = renderHook(() => useClearCache());
        await result.current();
        expect(mutate).toHaveBeenCalledTimes(3);
        expect(mutate).toHaveBeenCalledWith('key-1', undefined, { revalidate: false });
        expect(mutate).toHaveBeenCalledWith('key-2', undefined, { revalidate: false });
        expect(mutate).toHaveBeenCalledWith('key-3', undefined, { revalidate: false });
    });
});