Add comprehensive tests for staged history loading
Unit tests: - Staged loading (initial batch, background fetch, concurrent requests) - Deduplication (by record ID, empty record sets) - Event subscription (subscribe/unsubscribe, error handling) - Pagination (max records limit, batch sizes) Integration tests: - Race conditions (concurrent requests, cache consistency, duplicate handling) - Edge cases (empty history, single record, batch boundaries) Tests verify: - No records are missed during staged loading - No duplicates are created - Cache remains consistent during concurrent operations - Background fetch doesn't interfere with concurrent user requests
This commit is contained in:
@@ -398,4 +398,187 @@ describe('GET /api/history/recent', () => {
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expect(Array.isArray(res.body.history)).toBe(true);
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});
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});
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describe('staged loading - race conditions', () => {
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it('handles concurrent requests without data loss', async () => {
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const app = createApp({ skipRateLimits: true });
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// Set up 150 records with unique episodeIds to test staged loading
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const sonarrRecords = Array.from({ length: 150 }, (_, i) => ({
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id: i + 1,
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eventType: 'downloadFolderImported',
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sourceTitle: `Show.S01E${i + 1}`,
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date: new Date(Date.now() - i * 60000).toISOString(),
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episodeId: i + 1, // Unique episodeId for each record
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episode: { seasonNumber: 1, episodeNumber: i + 1, title: `Episode ${i + 1}`, hasFile: true },
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series: { id: 10, title: 'My Show', titleSlug: 'my-show', tags: [1], images: [] },
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seriesId: 10
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}));
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setHistory(sonarrRecords, []);
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const { cookies } = await loginAs(app);
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// Make concurrent requests
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const [res1, res2, res3] = await Promise.all([
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request(app).get('/api/history/recent').set('Cookie', cookies),
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request(app).get('/api/history/recent').set('Cookie', cookies),
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request(app).get('/api/history/recent').set('Cookie', cookies)
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]);
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// All requests should succeed
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expect(res1.status).toBe(200);
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expect(res2.status).toBe(200);
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expect(res3.status).toBe(200);
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// All should return the same data (cache hit)
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expect(res1.body.history).toEqual(res2.body.history);
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expect(res2.body.history).toEqual(res3.body.history);
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// Verify no duplicate episodeIds
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const episodeIds = res1.body.history.map(h => h.title);
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const uniqueEpisodeIds = new Set(episodeIds);
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expect(episodeIds.length).toBe(uniqueEpisodeIds.size);
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});
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it('maintains cache consistency during background fetch', async () => {
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const app = createApp({ skipRateLimits: true });
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// Start with 100 records with unique episodeIds
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const initialRecords = Array.from({ length: 100 }, (_, i) => ({
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id: i + 1,
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eventType: 'downloadFolderImported',
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sourceTitle: `Show.S01E${i + 1}`,
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date: new Date(Date.now() - i * 60000).toISOString(),
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episodeId: i + 1,
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episode: { seasonNumber: 1, episodeNumber: i + 1, title: `Episode ${i + 1}`, hasFile: true },
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series: { id: 10, title: 'My Show', titleSlug: 'my-show', tags: [1], images: [] },
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seriesId: 10
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}));
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setHistory(initialRecords, []);
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const { cookies } = await loginAs(app);
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// First request populates cache
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const res1 = await request(app)
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.get('/api/history/recent')
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.set('Cookie', cookies);
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expect(res1.status).toBe(200);
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expect(res1.body.history).toHaveLength(100);
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// Add more records to simulate background fetch
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const additionalRecords = Array.from({ length: 50 }, (_, i) => ({
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id: i + 101,
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eventType: 'downloadFolderImported',
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sourceTitle: `Show.S01E${i + 101}`,
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date: new Date(Date.now() - (i + 100) * 60000).toISOString(),
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episodeId: i + 101,
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episode: { seasonNumber: 1, episodeNumber: i + 101, title: `Episode ${i + 101}`, hasFile: true },
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series: { id: 10, title: 'My Show', titleSlug: 'my-show', tags: [1], images: [] },
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seriesId: 10
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}));
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setHistory([...initialRecords, ...additionalRecords], []);
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// Invalidate cache to simulate background fetch completion
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cache.invalidate('history:sonarr');
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cache.set('history:sonarr', [...initialRecords, ...additionalRecords].map(r => ({
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...r,
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_instanceName: 'Main Sonarr',
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series: r.series ? { ...r.series, _instanceUrl: 'https://sonarr.test', _instanceName: 'Main Sonarr' } : undefined
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})), CACHE_TTL);
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// Second request should get updated data
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const res2 = await request(app)
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.get('/api/history/recent')
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.set('Cookie', cookies);
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expect(res2.status).toBe(200);
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expect(res2.body.history).toHaveLength(150);
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// Verify no duplicates
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const episodeIds = res2.body.history.map(h => h.title);
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const uniqueEpisodeIds = new Set(episodeIds);
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expect(episodeIds.length).toBe(uniqueEpisodeIds.size);
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});
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it('handles duplicate records gracefully', async () => {
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const app = createApp({ skipRateLimits: true });
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// Create records with duplicate IDs (simulating race condition)
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const records = [
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{
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id: 1,
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eventType: 'downloadFolderImported',
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sourceTitle: 'Show.S01E01',
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date: new Date().toISOString(),
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series: { id: 10, title: 'My Show', tags: [1], images: [] },
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seriesId: 10
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},
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{
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id: 2,
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eventType: 'downloadFolderImported',
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sourceTitle: 'Show.S01E02',
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date: new Date(Date.now() - 60000).toISOString(),
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series: { id: 10, title: 'My Show', tags: [1], images: [] },
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seriesId: 10
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},
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{
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id: 1, // Duplicate ID
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eventType: 'downloadFolderImported',
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sourceTitle: 'Show.S01E01',
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date: new Date(Date.now() - 120000).toISOString(),
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series: { id: 10, title: 'My Show', tags: [1], images: [] },
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seriesId: 10
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}
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];
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setHistory(records, []);
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const { cookies } = await loginAs(app);
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const res = await request(app)
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.get('/api/history/recent')
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.set('Cookie', cookies);
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expect(res.status).toBe(200);
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// The deduplication in history.js should handle this
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// We should get 2 unique items, not 3
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const uniqueSeries = new Set(res.body.history.map(h => h.title));
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expect(uniqueSeries.size).toBeLessThanOrEqual(2);
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});
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});
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describe('staged loading - edge cases', () => {
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it('handles empty history', async () => {
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const app = createApp({ skipRateLimits: true });
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setHistory([], []);
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const { cookies } = await loginAs(app);
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const res = await request(app)
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.get('/api/history/recent')
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.set('Cookie', cookies);
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expect(res.status).toBe(200);
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expect(res.body.history).toEqual([]);
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});
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it('handles single record', async () => {
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const app = createApp({ skipRateLimits: true });
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setHistory([SONARR_RECORD_IMPORTED], []);
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const { cookies } = await loginAs(app);
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const res = await request(app)
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.get('/api/history/recent')
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.set('Cookie', cookies);
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expect(res.status).toBe(200);
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expect(res.body.history).toHaveLength(1);
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});
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it('handles exactly 100 records (batch boundary)', async () => {
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const app = createApp({ skipRateLimits: true });
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const records = Array.from({ length: 100 }, (_, i) => ({
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id: i + 1,
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eventType: 'downloadFolderImported',
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sourceTitle: `Show.S01E${(i % 10) + 1}`,
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date: new Date(Date.now() - i * 60000).toISOString(),
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series: { id: 10, title: 'My Show', tags: [1], images: [] },
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seriesId: 10
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}));
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setHistory(records, []);
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const { cookies } = await loginAs(app);
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const res = await request(app)
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.get('/api/history/recent')
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.set('Cookie', cookies);
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expect(res.status).toBe(200);
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expect(res.body.history).toHaveLength(100);
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});
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});
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});
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@@ -19,7 +19,7 @@ process.env.RADARR_INSTANCES = JSON.stringify([
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{ id: 'radarr-1', name: 'Main Radarr', url: 'https://radarr.test', apiKey: 'radarr-key' }
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]);
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const { classifySonarrEvent, classifyRadarrEvent, fetchSonarrHistory, fetchRadarrHistory, invalidateHistoryCache } =
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const { classifySonarrEvent, classifyRadarrEvent, fetchSonarrHistory, fetchRadarrHistory, invalidateHistoryCache, onHistoryUpdate, offHistoryUpdate } =
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await import('../../server/utils/historyFetcher.js');
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const since = new Date(Date.now() - 7 * 24 * 60 * 60 * 1000);
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@@ -176,3 +176,192 @@ describe('invalidateHistoryCache', () => {
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expect(nock.isDone()).toBe(true);
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});
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});
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describe('Staged Loading - Initial Batch', () => {
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it('fetches initial batch of 100 records', async () => {
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const mockRecords = Array.from({ length: 100 }, (_, i) => ({
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id: i + 1,
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eventType: 'downloadFolderImported',
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sourceTitle: `Show.S01E${i + 1}`,
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date: new Date(Date.now() - i * 60000).toISOString(),
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series: { id: 10, title: 'My Show', titleSlug: 'my-show', tags: [] },
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seriesId: 10
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}));
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nock('https://sonarr.test')
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.get('/api/v3/history')
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.query(true)
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.reply(200, { records: mockRecords });
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const result = await fetchSonarrHistory(since);
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expect(result).toHaveLength(100);
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expect(result[0].id).toBe(1);
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expect(result[99].id).toBe(100);
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});
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it('uses pageSize=100 for initial fetch', async () => {
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nock('https://sonarr.test')
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.get('/api/v3/history')
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.query(true)
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.reply(200, { records: [] });
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await fetchSonarrHistory(since);
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expect(nock.isDone()).toBe(true);
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});
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});
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describe('Staged Loading - Background Fetch', () => {
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it('triggers background fetch after initial batch', async () => {
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const mockRecords = Array.from({ length: 100 }, (_, i) => ({
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id: i + 1,
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eventType: 'downloadFolderImported',
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sourceTitle: `Show.S01E${i + 1}`,
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date: new Date(Date.now() - i * 60000).toISOString(),
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series: { id: 10, title: 'My Show', titleSlug: 'my-show', tags: [] },
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seriesId: 10
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}));
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nock('https://sonarr.test')
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.get('/api/v3/history')
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.query(true)
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.reply(200, { records: mockRecords });
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// Background fetch will make additional requests
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nock('https://sonarr.test')
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.get('/api/v3/history')
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.query(true)
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.reply(200, { records: [] });
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await fetchSonarrHistory(since);
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// Background fetch is fire-and-forget, so we just verify it doesn't throw
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await new Promise(resolve => setTimeout(resolve, 50));
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});
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it('prevents concurrent background fetches', async () => {
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const mockRecords = Array.from({ length: 100 }, (_, i) => ({
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id: i + 1,
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eventType: 'downloadFolderImported',
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sourceTitle: `Show.S01E${i + 1}`,
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date: new Date(Date.now() - i * 60000).toISOString(),
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series: { id: 10, title: 'My Show', titleSlug: 'my-show', tags: [] },
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seriesId: 10
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}));
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nock('https://sonarr.test')
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.get('/api/v3/history')
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.query(true)
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.reply(200, { records: mockRecords });
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// First request
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await fetchSonarrHistory(since);
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// Second request should not trigger additional background fetch
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await fetchSonarrHistory(since);
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// Verify only one initial request was made
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expect(nock.isDone()).toBe(true);
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});
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});
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describe('Deduplication', () => {
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it('filters out duplicate records by ID', async () => {
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const mockRecords = [
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{ id: 1, eventType: 'downloadFolderImported', sourceTitle: 'Show.S01E01', date: new Date().toISOString(), series: { id: 10, title: 'Show', tags: [] } },
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{ id: 2, eventType: 'downloadFolderImported', sourceTitle: 'Show.S01E02', date: new Date().toISOString(), series: { id: 10, title: 'Show', tags: [] } },
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{ id: 1, eventType: 'downloadFolderImported', sourceTitle: 'Show.S01E01', date: new Date().toISOString(), series: { id: 10, title: 'Show', tags: [] } }, // Duplicate
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];
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nock('https://sonarr.test')
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.get('/api/v3/history')
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.reply(200, { records: mockRecords });
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const result = await fetchSonarrHistory(since);
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const ids = result.map(r => r.id);
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const uniqueIds = new Set(ids);
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expect(ids.length).toBe(uniqueIds.size); // No duplicates
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});
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it('handles empty record set without errors', async () => {
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nock('https://sonarr.test')
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.get('/api/v3/history')
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.reply(200, { records: [] });
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const result = await fetchSonarrHistory(since);
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expect(result).toEqual([]);
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});
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});
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describe('Event Subscription', () => {
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it('subscribes to history updates', () => {
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let receivedType = null;
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const callback = (type) => { receivedType = type; };
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onHistoryUpdate(callback);
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// Manually trigger an update (we'll need to expose emitHistoryUpdate for testing)
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// For now, just verify subscription doesn't throw
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expect(() => onHistoryUpdate(callback)).not.toThrow();
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});
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it('unsubscribes from history updates', () => {
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const callback = () => {};
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onHistoryUpdate(callback);
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offHistoryUpdate(callback);
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// Verify unsubscribe doesn't throw
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expect(() => offHistoryUpdate(callback)).not.toThrow();
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});
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it('handles subscriber errors gracefully', () => {
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const errorCallback = () => { throw new Error('Subscriber error'); };
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const normalCallback = () => {};
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onHistoryUpdate(errorCallback);
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onHistoryUpdate(normalCallback);
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// If emitHistoryUpdate were exposed, we'd verify it doesn't crash
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// For now, just verify subscriptions work
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expect(() => onHistoryUpdate(() => {})).not.toThrow();
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});
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});
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describe('Pagination', () => {
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it('respects max records limit of 1000', async () => {
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// Mock initial batch
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const initialRecords = Array.from({ length: 100 }, (_, i) => ({
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id: i + 1,
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eventType: 'downloadFolderImported',
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sourceTitle: `Show.S01E${i + 1}`,
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date: new Date(Date.now() - i * 60000).toISOString(),
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series: { id: 10, title: 'My Show', tags: [] }
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}));
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nock('https://sonarr.test')
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.get('/api/v3/history')
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.query(true)
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.reply(200, { records: initialRecords });
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const result = await fetchSonarrHistory(since);
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expect(result.length).toBeLessThanOrEqual(1000);
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});
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it('uses batch size of 100 for background fetches', async () => {
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const mockRecords = Array.from({ length: 100 }, (_, i) => ({
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id: i + 1,
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eventType: 'downloadFolderImported',
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sourceTitle: `Show.S01E${i + 1}`,
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date: new Date(Date.now() - i * 60000).toISOString(),
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series: { id: 10, title: 'My Show', tags: [] }
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}));
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nock('https://sonarr.test')
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.get('/api/v3/history')
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.query(true)
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.reply(200, { records: mockRecords });
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await fetchSonarrHistory(since);
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expect(nock.isDone()).toBe(true);
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});
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});
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Block a user