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import { renderHook } from '@testing-library/react-hooks';
import { renderHook as renderHookSSR } from '@testing-library/react-hooks/server';
import { useMedia } from '../src';
const createMockMediaMatcher = (matches: Record<string, boolean>) => (qs: string) => ({
matches: matches[qs] ?? false,
addEventListener: () => {},
removeEventListener: () => {},
});
describe('useMedia', () => {
beforeEach(() => {
window.matchMedia = createMockMediaMatcher({
'(min-width: 500px)': true,
'(min-width: 1000px)': false,
}) as any;
});
it('should return true if media query matches', () => {
const { result } = renderHook(() => useMedia('(min-width: 500px)'));
expect(result.current).toBe(true);
});
it('should return false if media query does not match', () => {
const { result } = renderHook(() => useMedia('(min-width: 1200px)'));
expect(result.current).toBe(false);
});
it('should return default state before hydration', () => {
const { result } = renderHookSSR(() => useMedia('(min-width: 500px)', false));
expect(result.current).toBe(false);
});
it('should return media query result after hydration', async () => {
const { result, hydrate } = renderHookSSR(() => useMedia('(min-width: 500px)', false));
expect(result.current).toBe(false);
hydrate();
expect(result.current).toBe(true);
});
it('should return media query result after hydration', async () => {
const { result, hydrate } = renderHookSSR(() => useMedia('(min-width: 1200px)', true));
expect(result.current).toBe(true);
hydrate();
expect(result.current).toBe(false);
});
});
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