diff options
Diffstat (limited to 'spec/frontend/diffs/utils/queue_events_spec.js')
-rw-r--r-- | spec/frontend/diffs/utils/queue_events_spec.js | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/spec/frontend/diffs/utils/queue_events_spec.js b/spec/frontend/diffs/utils/queue_events_spec.js new file mode 100644 index 00000000000..007748d8b2c --- /dev/null +++ b/spec/frontend/diffs/utils/queue_events_spec.js @@ -0,0 +1,36 @@ +import api from '~/api'; +import { DEFER_DURATION } from '~/diffs/constants'; +import { queueRedisHllEvents } from '~/diffs/utils/queue_events'; + +jest.mock('~/api', () => ({ + trackRedisHllUserEvent: jest.fn(), +})); + +describe('diffs events queue', () => { + describe('queueRedisHllEvents', () => { + it('does not dispatch the event immediately', () => { + queueRedisHllEvents(['know_event']); + expect(api.trackRedisHllUserEvent).not.toHaveBeenCalled(); + }); + + it('does dispatch the event after the defer duration', () => { + queueRedisHllEvents(['know_event']); + jest.advanceTimersByTime(DEFER_DURATION + 1); + expect(api.trackRedisHllUserEvent).toHaveBeenCalled(); + }); + + it('increase defer duration based on the provided events count', () => { + let deferDuration = DEFER_DURATION + 1; + const events = ['know_event_a', 'know_event_b', 'know_event_c']; + queueRedisHllEvents(events); + + expect(api.trackRedisHllUserEvent).not.toHaveBeenCalled(); + + events.forEach((event, index) => { + jest.advanceTimersByTime(deferDuration); + expect(api.trackRedisHllUserEvent).toHaveBeenLastCalledWith(event); + deferDuration *= index + 1; + }); + }); + }); +}); |