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import React from 'react';
import '@testing-library/jest-dom';
import { render, screen, fireEvent, waitFor } from '@testing-library/react';
import { describe, it, expect, vi, beforeEach } from 'vitest';
import FeedItem from './FeedItem';
import type { Item } from '../types';
const mockItem: Item = {
_id: 1,
feed_id: 101,
title: 'Test Item',
url: 'http://example.com/item',
description: '<p>Description</p>',
publish_date: '2023-01-01',
read: false,
starred: false,
feed_title: 'Test Feed',
};
describe('FeedItem Component', () => {
beforeEach(() => {
vi.resetAllMocks();
global.fetch = vi.fn();
});
it('renders item details', () => {
render(<FeedItem item={mockItem} />);
expect(screen.getByText('Test Item')).toBeInTheDocument();
expect(screen.getByText(/Test Feed/)).toBeInTheDocument();
});
it('calls onToggleStar when star clicked', () => {
const onToggleStar = vi.fn();
render(<FeedItem item={mockItem} onToggleStar={onToggleStar} />);
const starBtn = screen.getByTitle('Star');
fireEvent.click(starBtn);
expect(onToggleStar).toHaveBeenCalledWith(mockItem);
});
it('updates styling when read state changes', () => {
const { rerender } = render(<FeedItem item={{ ...mockItem, read: false }} />);
const link = screen.getByText('Test Item');
const listItem = link.closest('li');
expect(listItem).toHaveClass('unread');
expect(listItem).not.toHaveClass('read');
rerender(<FeedItem item={{ ...mockItem, read: true }} />);
expect(listItem).toHaveClass('read');
expect(listItem).not.toHaveClass('unread');
});
it('loads full content and calls onUpdate', async () => {
const onUpdate = vi.fn();
vi.mocked(global.fetch).mockResolvedValueOnce({
ok: true,
json: async () => ({ full_content: '<p>Full Content Loaded</p>' }),
} as Response);
const { rerender } = render(<FeedItem item={mockItem} onUpdate={onUpdate} />);
const scrapeBtn = screen.getByTitle('Load Full Content');
fireEvent.click(scrapeBtn);
await waitFor(() => {
expect(global.fetch).toHaveBeenCalledWith('/api/item/1', expect.anything());
});
await waitFor(() => {
expect(onUpdate).toHaveBeenCalledWith(expect.objectContaining({
full_content: '<p>Full Content Loaded</p>'
}));
});
// Simulate parent updating prop
rerender(<FeedItem item={{ ...mockItem, full_content: '<p>Full Content Loaded</p>' }} onUpdate={onUpdate} />);
expect(screen.getByText('Full Content Loaded')).toBeInTheDocument();
});
});
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