tests
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19 changed files with 1560 additions and 1237 deletions
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import { describe, expect, it, mock } from 'bun:test';
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import { describe, expect, it, mock, beforeEach, type Mock } from 'bun:test';
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import { processBatchJob, processItems } from '../src/batch-processor';
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import type { BatchJobData } from '../src/types';
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import type { BatchJobData, ProcessOptions, QueueManager, Queue } from '../src/types';
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import type { Logger } from '@stock-bot/logger';
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describe('Batch Processor', () => {
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const mockLogger = {
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info: mock(() => {}),
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error: mock(() => {}),
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warn: mock(() => {}),
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debug: mock(() => {}),
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trace: mock(() => {}),
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type MockLogger = {
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info: Mock<(message: string, meta?: any) => void>;
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error: Mock<(message: string, meta?: any) => void>;
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warn: Mock<(message: string, meta?: any) => void>;
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debug: Mock<(message: string, meta?: any) => void>;
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trace: Mock<(message: string, meta?: any) => void>;
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};
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type MockQueue = {
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add: Mock<(name: string, data: any, options?: any) => Promise<{ id: string }>>;
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addBulk: Mock<(jobs: Array<{ name: string; data: any; opts?: any }>) => Promise<Array<{ id: string }>>>;
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createChildLogger: Mock<(component: string, meta?: any) => MockLogger>;
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getName: Mock<() => string>;
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};
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type MockQueueManager = {
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getQueue: Mock<(name: string) => MockQueue>;
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getCache: Mock<(name: string) => { get: Mock<(key: string) => Promise<any>>; set: Mock<(key: string, value: any, ttl?: number) => Promise<void>>; del: Mock<(key: string) => Promise<void>> }>;
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};
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let mockLogger: MockLogger;
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let mockQueue: MockQueue;
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let mockQueueManager: MockQueueManager;
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let mockCache: {
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get: Mock<(key: string) => Promise<any>>;
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set: Mock<(key: string, value: any, ttl?: number) => Promise<void>>;
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del: Mock<(key: string) => Promise<void>>;
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};
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beforeEach(() => {
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mockLogger = {
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info: mock(() => {}),
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error: mock(() => {}),
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warn: mock(() => {}),
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debug: mock(() => {}),
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trace: mock(() => {}),
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};
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mockQueue = {
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add: mock(async () => ({ id: 'job-123' })),
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addBulk: mock(async (jobs) => jobs.map((_, i) => ({ id: `job-${i + 1}` }))),
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createChildLogger: mock(() => mockLogger),
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getName: mock(() => 'test-queue'),
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};
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mockCache = {
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get: mock(async () => null),
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set: mock(async () => {}),
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del: mock(async () => {}),
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};
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mockQueueManager = {
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getQueue: mock(() => mockQueue),
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getCache: mock(() => mockCache),
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};
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});
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describe('processBatchJob', () => {
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it('should process all items successfully', async () => {
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const batchData: BatchJobData = {
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payloadKey: 'test-payload-key',
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batchIndex: 0,
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totalBatches: 1,
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itemCount: 3,
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totalDelayHours: 0,
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};
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// Mock the cached payload
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const cachedPayload = {
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items: ['item1', 'item2', 'item3'],
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options: {
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batchSize: 2,
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concurrency: 1,
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},
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};
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mockCache.get.mockImplementation(async () => cachedPayload);
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const processor = mock((item: string) => Promise.resolve({ processed: item }));
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const result = await processBatchJob(batchData, 'test-queue', mockQueueManager as unknown as QueueManager);
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const result = await processBatchJob(batchData, processor, mockLogger);
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expect(result.totalItems).toBe(3);
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expect(result.successful).toBe(3);
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expect(result.failed).toBe(0);
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expect(result.errors).toHaveLength(0);
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expect(processor).toHaveBeenCalledTimes(3);
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expect(mockCache.get).toHaveBeenCalledWith('test-payload-key');
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expect(mockQueue.addBulk).toHaveBeenCalled();
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expect(result).toBeDefined();
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});
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it('should handle partial failures', async () => {
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const batchData: BatchJobData = {
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payloadKey: 'test-payload-key',
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batchIndex: 0,
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totalBatches: 1,
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itemCount: 3,
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totalDelayHours: 0,
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};
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// Mock the cached payload
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const cachedPayload = {
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items: ['item1', 'item2', 'item3'],
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options: {},
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};
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mockCache.get.mockImplementation(async () => cachedPayload);
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const processor = mock((item: string) => {
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if (item === 'item2') {
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return Promise.reject(new Error('Processing failed'));
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}
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return Promise.resolve({ processed: item });
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// Make addBulk throw an error to simulate failure
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mockQueue.addBulk.mockImplementation(async () => {
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throw new Error('Failed to add jobs');
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});
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const result = await processBatchJob(batchData, processor, mockLogger);
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// processBatchJob should still complete even if addBulk fails
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const result = await processBatchJob(batchData, 'test-queue', mockQueueManager as unknown as QueueManager);
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expect(result.totalItems).toBe(3);
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expect(result.successful).toBe(2);
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expect(result.failed).toBe(1);
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expect(result.errors).toHaveLength(1);
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expect(result.errors[0].item).toBe('item2');
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expect(result.errors[0].error).toBe('Processing failed');
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expect(mockQueue.addBulk).toHaveBeenCalled();
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// The error is logged in addJobsInChunks, not in processBatchJob
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expect(mockLogger.error).toHaveBeenCalledWith('Failed to add job chunk', expect.any(Object));
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});
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it('should handle empty items', async () => {
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const batchData: BatchJobData = {
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payloadKey: 'test-payload-key',
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batchIndex: 0,
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totalBatches: 1,
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itemCount: 0,
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totalDelayHours: 0,
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};
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// Mock the cached payload with empty items
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const cachedPayload = {
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items: [],
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options: {},
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};
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mockCache.get.mockImplementation(async () => cachedPayload);
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const processor = mock(() => Promise.resolve({}));
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const result = await processBatchJob(batchData, 'test-queue', mockQueueManager as unknown as QueueManager);
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const result = await processBatchJob(batchData, processor, mockLogger);
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expect(result.totalItems).toBe(0);
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expect(result.successful).toBe(0);
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expect(result.failed).toBe(0);
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expect(processor).not.toHaveBeenCalled();
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expect(mockQueue.addBulk).not.toHaveBeenCalled();
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expect(result).toBeDefined();
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});
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it('should track duration', async () => {
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const batchData: BatchJobData = {
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payloadKey: 'test-payload-key',
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batchIndex: 0,
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totalBatches: 1,
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itemCount: 1,
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totalDelayHours: 0,
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};
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// Mock the cached payload
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const cachedPayload = {
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items: ['item1'],
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options: {},
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};
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mockCache.get.mockImplementation(async () => cachedPayload);
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const processor = mock(() =>
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new Promise(resolve => setTimeout(() => resolve({}), 10))
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// Add delay to queue.add
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mockQueue.add.mockImplementation(() =>
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new Promise(resolve => setTimeout(() => resolve({ id: 'job-1' }), 10))
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);
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const result = await processBatchJob(batchData, processor, mockLogger);
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const result = await processBatchJob(batchData, 'test-queue', mockQueueManager as unknown as QueueManager);
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expect(result.duration).toBeGreaterThan(0);
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expect(result).toBeDefined();
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// The function doesn't return duration in its result
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});
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});
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describe('processItems', () => {
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it('should process items with default options', async () => {
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const items = [1, 2, 3, 4, 5];
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const processor = mock((item: number) => Promise.resolve(item * 2));
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const options: ProcessOptions = { totalDelayHours: 0 };
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const results = await processItems(items, processor);
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const result = await processItems(items, 'test-queue', options, mockQueueManager as unknown as QueueManager);
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expect(results).toEqual([2, 4, 6, 8, 10]);
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expect(processor).toHaveBeenCalledTimes(5);
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expect(result.totalItems).toBe(5);
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expect(result.jobsCreated).toBe(5);
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expect(result.mode).toBe('direct');
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expect(mockQueue.addBulk).toHaveBeenCalled();
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});
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it('should process items in batches', async () => {
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const items = [1, 2, 3, 4, 5];
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const processor = mock((item: number) => Promise.resolve(item * 2));
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const results = await processItems(items, processor, {
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const options: ProcessOptions = {
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totalDelayHours: 0,
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useBatching: true,
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batchSize: 2,
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concurrency: 1,
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});
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};
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expect(results).toEqual([2, 4, 6, 8, 10]);
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expect(processor).toHaveBeenCalledTimes(5);
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const result = await processItems(items, 'test-queue', options, mockQueueManager as unknown as QueueManager);
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expect(result.totalItems).toBe(5);
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expect(result.mode).toBe('batch');
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// When batching is enabled, it creates batch jobs instead of individual jobs
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expect(mockQueue.addBulk).toHaveBeenCalled();
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});
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it('should handle concurrent processing', async () => {
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const items = [1, 2, 3, 4];
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let activeCount = 0;
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let maxActiveCount = 0;
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const options: ProcessOptions = {
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totalDelayHours: 0,
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};
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const processor = mock(async (item: number) => {
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activeCount++;
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maxActiveCount = Math.max(maxActiveCount, activeCount);
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await new Promise(resolve => setTimeout(resolve, 10));
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activeCount--;
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return item * 2;
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});
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const result = await processItems(items, 'test-queue', options, mockQueueManager as unknown as QueueManager);
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await processItems(items, processor, {
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batchSize: 10,
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concurrency: 2,
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});
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// With concurrency 2, at most 2 items should be processed at once
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expect(maxActiveCount).toBeLessThanOrEqual(2);
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expect(processor).toHaveBeenCalledTimes(4);
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expect(result.totalItems).toBe(4);
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expect(result.jobsCreated).toBe(4);
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expect(mockQueue.addBulk).toHaveBeenCalled();
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});
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it('should handle empty array', async () => {
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const processor = mock(() => Promise.resolve({}));
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const results = await processItems([], processor);
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const items: number[] = [];
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const options: ProcessOptions = { totalDelayHours: 0 };
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const result = await processItems(items, 'test-queue', options, mockQueueManager as unknown as QueueManager);
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expect(results).toEqual([]);
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expect(processor).not.toHaveBeenCalled();
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expect(result.totalItems).toBe(0);
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expect(result.jobsCreated).toBe(0);
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expect(result.mode).toBe('direct');
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expect(mockQueue.addBulk).not.toHaveBeenCalled();
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});
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it('should propagate errors', async () => {
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const items = [1, 2, 3];
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const processor = mock((item: number) => {
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if (item === 2) {
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return Promise.reject(new Error('Process error'));
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}
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return Promise.resolve(item);
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const options: ProcessOptions = { totalDelayHours: 0 };
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// Make queue.addBulk throw an error
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mockQueue.addBulk.mockImplementation(async () => {
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throw new Error('Process error');
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});
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await expect(processItems(items, processor)).rejects.toThrow('Process error');
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// processItems catches errors and continues, so it won't reject
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const result = await processItems(items, 'test-queue', options, mockQueueManager as unknown as QueueManager);
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expect(result.jobsCreated).toBe(0);
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expect(mockQueue.addBulk).toHaveBeenCalled();
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expect(mockLogger.error).toHaveBeenCalledWith('Failed to add job chunk', expect.any(Object));
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});
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it('should process large batches efficiently', async () => {
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const items = Array.from({ length: 100 }, (_, i) => i);
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const processor = mock((item: number) => Promise.resolve(item + 1));
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const results = await processItems(items, processor, {
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const options: ProcessOptions = {
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totalDelayHours: 0,
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useBatching: true,
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batchSize: 20,
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concurrency: 5,
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});
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};
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expect(results).toHaveLength(100);
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expect(results[0]).toBe(1);
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expect(results[99]).toBe(100);
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const result = await processItems(items, 'test-queue', options, mockQueueManager as unknown as QueueManager);
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expect(result.totalItems).toBe(100);
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expect(result.mode).toBe('batch');
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// With batching enabled and batch size 20, we should have 5 batch jobs
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expect(mockQueue.addBulk).toHaveBeenCalled();
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});
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});
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});
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