gps-denied-desktop/docs/03_tests/43_realtime_streaming_spec.md

Acceptance Test: AC-8 - Real-Time Results + Async Refinement

Summary

Validate Acceptance Criterion 8: "Results of image processing should appear immediately to user, so that user shouldn't wait for the whole route to complete in order to analyze first results. Also, system could refine existing calculated results and send refined results again to user."

Linked Acceptance Criteria

AC-8: Real-time streaming + async refinement

Test Steps

Step 1: Immediate Results (Part 1 of AC-8)

• Action: Upload AD000001, connect SSE client
• Expected Result: "image_processed" event received within 1 second of processing complete

Step 2: Progressive Availability (Part 1)

• Action: Upload 60 images, monitor SSE stream
• Expected Result: First result available within 10 seconds, don't need to wait for all 60

Step 3: Refinement Notification (Part 2 of AC-8)

• Action: Image 20 adds GPS anchor, factor graph refines images 1-19
• Expected Result: "trajectory_refined" event sent within 2 seconds

Step 4: Refined Results Delivered

• Action: Client receives refinement event, fetches updated results
• Expected Result: Refined GPS coordinates available, version incremented

Success Criteria

• Initial results latency < 1 second
• First result available before flight complete
• Refinements notified immediately
• Both initial and refined results accessible

Pass/Fail Criteria

Passes If: AC-8 both parts met (immediate + refinement) Fails If: Results delayed > 2s, or refinements not sent