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Web Workers
Test background processing
Worker Status
Monitor the web worker state
Idle
Heavy Calculations
Run CPU-intensive tasks in a worker
Message Passing
Communicate with the worker
Communication Log
Messages sent and received
Run a task to see worker communication
UI Responsiveness Test
Verify UI stays responsive during calculations
Click the button during heavy calculation - UI stays responsive!
Testing Tips
Automation hints
- ✓ Use page.evaluate() to intercept worker messages via postMessage spy
- ✓ Verify worker-status element text changes to "Running" during calculation
- ✓ Test UI responsiveness by clicking ui-test-btn during heavy calculation
- ✓ Check progress-bar width changes during primes calculation
- ✓ Verify result-value appears after calculation completes
