jest.setup.js

require('@testing-library/jest-dom');

// Mock window.matchMedia
Object.defineProperty(window, 'matchMedia', {
    writable: true,
    value: jest.fn().mockImplementation((query) => ({
        matches: false,
        media: query,
        onchange: null,
        addListener: jest.fn(),
        removeListener: jest.fn(),
        addEventListener: jest.fn(),
        removeEventListener: jest.fn(),
        dispatchEvent: jest.fn(),
    })),
});

// Mock IntersectionObserver
global.IntersectionObserver = class IntersectionObserver {
    constructor() {}
    disconnect() {}
    observe() {}
    takeRecords() {
        return [];
    }
    unobserve() {}
};

// Mock localStorage with actual implementation for tests
const localStorageMock = (() => {
    let store = {};
    return {
        getItem: (key) => store[key] || null,
        setItem: (key, value) => {
            store[key] = value.toString();
        },
        removeItem: (key) => {
            delete store[key];
        },
        clear: () => {
            store = {};
        },
    };
})();
global.localStorage = localStorageMock;