import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
import { detectTrends } from '../src/bing/tools/analytics';
import { getBingClient } from '../src/bing/client';
// Mock the client
vi.mock('../src/bing/client', () => ({
getBingClient: vi.fn(),
}));
// Mock Data
const MOCK_DATE = new Date('2025-06-01T12:00:00Z');
const createStat = (query: string, clicks: number, date: string) => ({
Query: query,
Clicks: clicks,
Impressions: clicks * 10,
CTR: 0.1,
AvgPosition: 1,
Date: date
});
describe('Bing detectTrends', () => {
let mockGetQueryStats;
beforeEach(() => {
vi.clearAllMocks();
vi.useFakeTimers();
vi.setSystemTime(MOCK_DATE);
mockGetQueryStats = vi.fn().mockResolvedValue([]);
(getBingClient as any).mockResolvedValue({
getQueryStats: mockGetQueryStats
});
});
afterEach(() => {
vi.useRealTimers();
});
it('should detect rising trends', async () => {
mockGetQueryStats.mockResolvedValue([
// Previous Period (May 3 - May 16)
createStat('rising query', 50, '2025-05-05'),
createStat('rising query', 50, '2025-05-06'), // Total 100
// Current Period (May 17 - May 30)
createStat('rising query', 100, '2025-05-18'),
createStat('rising query', 100, '2025-05-19'), // Total 200
]);
const trends = await detectTrends('https://example.com', { minClicks: 50 });
expect(trends.length).toBe(1);
expect(trends[0].key).toBe('rising query');
expect(trends[0].changePercent).toBe(100);
expect(trends[0].trend).toBe('rising');
});
it('should detect declining trends', async () => {
mockGetQueryStats.mockResolvedValue([
// Previous Period
createStat('dropping query', 100, '2025-05-05'),
// Current Period
createStat('dropping query', 50, '2025-05-18'),
]);
const trends = await detectTrends('https://example.com', { minClicks: 10 });
expect(trends.length).toBe(1);
expect(trends[0].key).toBe('dropping query');
expect(trends[0].changePercent).toBe(-50);
expect(trends[0].trend).toBe('declining');
});
it('should detect zero to hero trends', async () => {
mockGetQueryStats.mockResolvedValue([
// Current Period Only
createStat('new query', 100, '2025-05-18'),
]);
const trends = await detectTrends('https://example.com', { minClicks: 50 });
expect(trends.length).toBe(1);
expect(trends[0].key).toBe('new query');
expect(trends[0].changePercent).toBe(100);
expect(trends[0].previousValue).toBe(0);
});
it('should detect hero to zero trends', async () => {
mockGetQueryStats.mockResolvedValue([
// Previous Period Only
createStat('lost query', 100, '2025-05-05'),
]);
const trends = await detectTrends('https://example.com', { minClicks: 50 });
expect(trends.length).toBe(1);
expect(trends[0].key).toBe('lost query');
expect(trends[0].changePercent).toBe(-100);
expect(trends[0].currentValue).toBe(0);
});
});
