import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
import { detectTrends, clearAnalyticsCache } from '../src/google/tools/analytics';
import { getSearchConsoleClient } from '../src/google/client';
// Mock the client
vi.mock('../src/google/client', () => ({
getSearchConsoleClient: vi.fn(),
}));
const mockQuery = vi.fn().mockResolvedValue({ data: { rows: [] } });
(getSearchConsoleClient as any).mockResolvedValue({
searchanalytics: { query: mockQuery }
});
// Mock Date to ensure deterministic tests
const MOCK_DATE = new Date('2025-06-01T12:00:00Z');
describe('detectTrends Date Overlap', () => {
beforeEach(() => {
vi.clearAllMocks();
clearAnalyticsCache();
vi.useFakeTimers();
vi.setSystemTime(MOCK_DATE);
});
afterEach(() => {
vi.useRealTimers();
});
it('should calculate correct date ranges without overlap', async () => {
// 28 days total -> 14 days per period
await detectTrends('https://example.com', { days: 28 });
expect(mockQuery).toHaveBeenCalledTimes(2);
const calls = mockQuery.mock.calls;
if (calls.length < 2) throw new Error('Not enough calls');
// Extract parameters
const args1 = calls[0][0].requestBody;
const args2 = calls[1][0].requestBody;
console.log('Call 1:', args1.startDate, args1.endDate);
console.log('Call 2:', args2.startDate, args2.endDate);
const period1 = { start: args1.startDate, end: args1.endDate };
const period2 = { start: args2.startDate, end: args2.endDate };
// Identify which is which (Current vs Previous)
// Current period should be LATER than Previous period
const laterPeriod = period1.start > period2.start ? period1 : period2;
const earlierPeriod = period1.start > period2.start ? period2 : period1;
// Ensure strictly non-overlapping dates
// If End Date of Previous == Start Date of Current, that IS an overlap because GSC dates are inclusive.
// We want Previous.End < Current.Start
expect(earlierPeriod.end).not.toBe(laterPeriod.start);
expect(new Date(earlierPeriod.end).getTime()).toBeLessThan(new Date(laterPeriod.start).getTime());
});
});
