QA: Agentic Chat — LangGraph (FastAPI)

Prerequisites

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

Test Steps

1. Basic Functionality

• Navigate to the agentic-chat demo page
• Verify the chat interface loads with a text input placeholder "Type a message"
• Verify the background container (data-testid="background-container") is visible
• Verify the default background color is the theme default (rgb(250, 250, 249))
• Send a basic message (e.g. "Hello")
• Verify the agent responds with a text message

2. Feature-Specific Checks

Suggestions

• Verify "Change background" suggestion button is visible
• Verify "Generate sonnet" suggestion button is visible
• Click the "Change background" suggestion
• Verify the suggestion either populates the input or sends the message

Background Change (useFrontendTool)

• Ask "Change the background to a sunset gradient"
• Verify the background container style changes from the default
• Verify the change_background tool returns a success status

Weather Render Tool (useRenderTool)

• Type "What's the weather in Tokyo?"
• Verify loading state shows "Loading weather..." (data-testid="weather-info-loading")
• Verify WeatherCard renders (data-testid="weather-info") with:
  • City name displayed
  • Temperature in degrees C
  • Humidity percentage
  • Wind speed in mph
  • Conditions text

Agent Context

• Verify the agent knows the user's name is "Bob" (provided via useAgentContext)
• Ask "What is my name?" and verify the agent responds with "Bob"

3. Error Handling

• Send an empty message (should be handled gracefully)
• Verify no console errors during normal usage
• Send a very long message and verify no UI breakage

Expected Results

• Chat loads within 3 seconds
• Agent responds within 10 seconds
• Background changes are instant after tool execution
• Weather card renders with all data fields populated
• No UI errors or broken layouts