QA: Agentic Generative UI — LangGraph (FastAPI)

Prerequisites

• Demo is deployed and accessible
• Agent backend is healthy (check /api/health)

Test Steps

1. Basic Functionality

• Navigate to the gen-ui-agent demo page
• Verify the chat interface loads in a centered full-height layout
• Verify the chat input placeholder "Type a message" is visible
• Send a basic message
• Verify the agent responds

2. Feature-Specific Checks

Suggestions

• Verify "Simple plan" suggestion button is visible (plan to go to Mars in 5 steps)
• Verify "Complex plan" suggestion button is visible (plan to make pizza in 10 steps)

Task Progress Tracker (useAgent with state streaming)

• Click "Simple plan" suggestion or type "Build a plan to go to Mars in 5 steps"
• Verify the TaskProgress component renders (data-testid="task-progress")
• Verify the progress bar appears with a gradient fill
• Verify step items appear with descriptions (data-testid="task-step-text")
• Verify the "N/N Complete" counter updates as steps complete
• Verify completed steps show:
  • Green background gradient
  • Check icon
  • Green text color
• Verify the current pending step shows:
  • Blue/purple background gradient
  • Spinner icon with "Processing..." text
  • Pulsing animation
• Verify future pending steps show:
  • Gray background
  • Clock icon
  • Muted text color

Complex Plan

• Type "Plan to make pizza in 10 steps"
• Verify 10 steps appear in the progress tracker
• Verify progress bar width increases as steps complete

3. Error Handling

• Send an empty message (should be handled gracefully)
• Verify no console errors during normal usage

Expected Results

• Chat loads within 3 seconds
• Agent responds within 10 seconds
• Task progress tracker shows live step completion
• Progress bar animates smoothly
• No UI errors or broken layouts