| 1 | import type { EventEnvelope } from './event-stream.service' |
| 2 | import { describe, expect, it, vi } from 'vitest' |
| 3 | import { EventStream } from './enum/event-stream.enum' |
| 4 | import { EventTopic } from './enum/event-topic.enum' |
| 5 | import { OnEventStream } from './event-stream.decorator' |
| 6 | import { EventStreamExplorer } from './event-stream.explorer' |
| 7 | import { EventStreamService } from './event-stream.service' |
| 8 | |
| 9 | function createModulesContainer(instance: object) { |
| 10 | return new Map([ |
| 11 | ['test-module', { |
| 12 | providers: new Map([ |
| 13 | ['handler', { instance }], |
| 14 | ]), |
| 15 | controllers: new Map(), |
| 16 | }], |
| 17 | ]) |
| 18 | } |
| 19 | |
| 20 | function createEnvelope(topic: EventTopic): EventEnvelope { |
| 21 | return { |
| 22 | eventId: 'event_1', |
| 23 | topic, |
| 24 | version: 1, |
| 25 | occurredAt: '2026-06-09T00:00:00.000Z', |
| 26 | source: 'spec', |
| 27 | idempotencyKey: 'event_1', |
| 28 | payload: {}, |
| 29 | } as EventEnvelope |
| 30 | } |
| 31 | |
| 32 | describe('eventStreamExplorer', () => { |
| 33 | it('registers decorated handlers with an inferred stream and generated group', async () => { |
| 34 | class AutoGroupHandler { |
| 35 | received: EventEnvelope[] = [] |
| 36 | |
| 37 | @OnEventStream(EventTopic.UserCreated) |
| 38 | async handle(envelope: EventEnvelope) { |
| 39 | this.received.push(envelope) |
| 40 | } |
| 41 | } |
| 42 | const instance = new AutoGroupHandler() |
| 43 | const eventStreamService = { subscribe: vi.fn() } |
| 44 | |
| 45 | new EventStreamExplorer( |
| 46 | createModulesContainer(instance) as never, |
| 47 | eventStreamService as unknown as EventStreamService, |
| 48 | ).onModuleInit() |
| 49 | |
| 50 | const expectedGroup = 'event-stream:AutoGroupHandler.handle:user.created' |
| 51 | expect(eventStreamService.subscribe).toHaveBeenCalledWith(expect.objectContaining({ |
| 52 | group: expectedGroup, |
| 53 | consumer: expect.stringContaining(`${expectedGroup}:`), |
| 54 | streams: [EventStream.User], |
| 55 | topics: [EventTopic.UserCreated], |
| 56 | })) |
| 57 | |
| 58 | await eventStreamService.subscribe.mock.calls[0][0].handler(createEnvelope(EventTopic.UserCreated)) |
| 59 | |
| 60 | expect(instance.received).toHaveLength(1) |
| 61 | }) |
| 62 | |
| 63 | it('keeps explicit consumer group options', () => { |
| 64 | class ExplicitGroupHandler { |
| 65 | @OnEventStream(EventTopic.ChannelsAccountConnected, { |
| 66 | streams: [EventStream.Channels], |
| 67 | group: 'channels-account-connected-spec', |
| 68 | consumer: 'consumer-1', |
| 69 | maxRetries: 2, |
| 70 | pollInterval: 300, |
| 71 | }) |
| 72 | async handle() { |
| 73 | return undefined |
| 74 | } |
| 75 | } |
| 76 | const eventStreamService = { subscribe: vi.fn() } |
| 77 | |
| 78 | new EventStreamExplorer( |
| 79 | createModulesContainer(new ExplicitGroupHandler()) as never, |
| 80 | eventStreamService as unknown as EventStreamService, |
| 81 | ).onModuleInit() |
| 82 | |
| 83 | expect(eventStreamService.subscribe).toHaveBeenCalledWith(expect.objectContaining({ |
| 84 | group: 'channels-account-connected-spec', |
| 85 | consumer: 'consumer-1', |
| 86 | streams: [EventStream.Channels], |
| 87 | topics: [EventTopic.ChannelsAccountConnected], |
| 88 | maxRetries: 2, |
| 89 | pollInterval: 300, |
| 90 | })) |
| 91 | }) |
| 92 | }) |
| 93 | |
| 94 | describe('eventStreamService topic filtering', () => { |
| 95 | it('acks messages without invoking handlers when the topic does not match', async () => { |
| 96 | const redis = { |
| 97 | xack: vi.fn(), |
| 98 | xadd: vi.fn(), |
| 99 | } |
| 100 | const service = new EventStreamService(redis as never) |
| 101 | const handler = vi.fn() |
| 102 | |
| 103 | await (service as unknown as { |
| 104 | processMessage: ( |
| 105 | stream: string, |
| 106 | id: string, |
| 107 | fields: string[], |
| 108 | config: { |
| 109 | group: string |
| 110 | consumer: string |
| 111 | streams: EventStream[] |
| 112 | topics: EventTopic[] |
| 113 | handler: (envelope: EventEnvelope) => Promise<void> |
| 114 | }, |
| 115 | maxRetries: number, |
| 116 | ) => Promise<void> |
| 117 | }).processMessage( |
| 118 | EventStream.User, |
| 119 | '1-0', |
| 120 | ['data', JSON.stringify(createEnvelope(EventTopic.UserCreated))], |
| 121 | { |
| 122 | group: 'group-1', |
| 123 | consumer: 'consumer-1', |
| 124 | streams: [EventStream.User], |
| 125 | topics: [EventTopic.ChannelsAccountConnected], |
| 126 | handler, |
| 127 | }, |
| 128 | 0, |
| 129 | ) |
| 130 | |
| 131 | expect(handler).not.toHaveBeenCalled() |
| 132 | expect(redis.xack).toHaveBeenCalledWith(EventStream.User, 'group-1', '1-0') |
| 133 | }) |
| 134 | }) |
| 135 |