EEA Chatbot Tests

Playwright-based end-to-end test framework for volto-eea-chatbot with step-based logging, JSONL output, LLM-powered quality analysis, and PDF report generation.

Features

• Browser automation with Playwright (Chromium, Firefox, WebKit)
• Step-based test logging with timed actions and JSONL output
• Data-driven testing via parametrized fixtures with validation rules
• LLM quality verification of chatbot responses (relevance, specificity, citations, information)
• Halloumi fact-check integration and scoring
• Result analysis with performance metrics, failure categorization, and health assessment
• Multi-run comparison with regression/fix/flaky detection and stability scoring
• PDF report generation with EEA branding and executive summaries

Quick Start

Prerequisites

• Python 3.10+
• A running volto-eea-chatbot instance

Installation

pip install -e .
playwright install chromium

Or using Make:

make install

Configuration

Copy the example config and edit it:

cp config.example.json config.json

Set the chatbot URL and desired options:

{
  "chatbot_base_url": "https://www.eea.europa.eu",
  "chatbot_path": "/en/chatbot",
  "headless": true,
  "browser": "chromium",
  "timeout": 240000,
  "expect_timeout": 30000,
  "reports_dir": "./reports",
  "fixtures_dir": "./fixtures"
}

Run Tests

# Run all tests
chatbot_tests run

# Run specific markers
chatbot_tests run -m basic

# Run with visible browser
chatbot_tests run --headed

# Limit fixture questions
chatbot_tests run --limit 5

Analyze Results

# Summary with all sections
chatbot_tests analyze ./reports/test_run_*.jsonl --all

# Compare multiple runs
chatbot_tests compare ./reports/run1.jsonl ./reports/run2.jsonl

CLI Reference

chatbot_tests run

Run Playwright tests against a chatbot instance.

Option	Description
-c, --config	Path to JSON config file (default: config.json)
-m, --marker	Comma-separated test markers to filter
--headed	Show browser window (overrides config headless)
--limit N	Limit to first N fixture questions
-o, --output	Custom output file or directory
--color	Force ANSI color output

chatbot_tests analyze

Analyze a test run JSONL file.

Option	Description
input	JSONL file to analyze
-c, --config	Path to JSON config file
--failures	Show failure details grouped by category
--steps	Show step-by-step breakdown
--by-marker	Group results by pytest marker
--performance	Show duration metrics
--insights	Show auto-generated health insights
--all	Show all analysis sections
--llm	Run LLM analysis and generate PDF report

chatbot_tests compare

Compare multiple test runs for trends and regressions.

Option	Description
files	Two or more JSONL files to compare
-c, --config	Path to JSON config file
--llm	Run LLM comparison and generate PDF report

Configuration

Settings are loaded from (in priority order):

1. Environment variables (e.g., CHATBOT_BASE_URL)
2. .env file
3. JSON config file (config.json by default)

Settings

Setting	Default	Description
chatbot_base_url	http://localhost:3000	Volto frontend URL
chatbot_path	/chatbot	Path to chatbot page
headless	true	Run browser headless
browser	chromium	Browser engine
timeout	120000	Default timeout (ms)
expect_timeout	30000	Assertion timeout (ms)
reports_dir	./chatbot_tests/reports	Output directory
fixtures_dir	./fixtures	Test fixtures directory
pdf_font	null	TTF font path for PDF Unicode support
enable_llm_analysis	false	Enable LLM quality analysis
llm_model	Inhouse-LLM/gpt-oss-120b	LLM model identifier
llm_url	https://llmgw.eea.europa.eu	LLM API endpoint
llm_api_key	``	LLM API key

Test Structure

Test Files

File	Description
tests/test_basic.py	UI and integration tests (@pytest.mark.always) — always run
tests/test_questions.py	Data-driven question validation from fixtures/*.json

Fixtures (v2.0)

Test questions are defined in fixtures/*.json with a minimal format:

{
  "version": "2.0.0",
  "default_validation": {
    "response": { "min_length": 100 },
    "sources": { "min_count": 1 },
    "llm": {
      "verify_answers_question": true,
      "verify_not_vague": true,
      "verify_citations": true,
      "verify_lack_information": true
    }
  },
  "default_feedback": true,
  "test_cases": [
    {
      "id": "Q-001",
      "priority": "high",
      "question": "What is the current state of air quality in Europe?",
      "markers": ["air_quality"]
    }
  ]
}

Each test case inherits default_validation and can override specific fields.

Markers

Marker	Description
always	Tests that run regardless of -m filter
basic	Basic chatbot functionality
halloumi	Halloumi fact-check tests
feedback	Feedback functionality
follow_up	Follow-up query tests
high / medium / low	Priority (auto-added from fixture priority)

Topic markers (e.g., satellite, copernicus, ai) are dynamically applied from fixture markers arrays.

LLM Quality Analysis

When enabled, the framework uses an external LLM to evaluate chatbot responses across four dimensions:

Dimension	Pass	Fail
Information	Has sufficient information	Lacks information
Relevance	On-topic	Off-topic
Specificity	Not vague	Too vague
Citations	Has citations	Missing citations

Setup

Add LLM settings to config.json:

{
  "enable_llm_analysis": true,
  "llm_model": "Inhouse-LLM/gpt-oss-120b",
  "llm_url": "https://llmgw.eea.europa.eu",
  "llm_api_key": "your_api_key"
}

Report Generation

# Single run analysis with PDF
chatbot_tests analyze ./results.jsonl --llm

# Multi-run comparison with PDF
chatbot_tests compare ./run1.jsonl ./run2.jsonl --llm

Generated reports include executive summaries, risk assessments, trend analysis, and actionable recommendations.

Output Files

Test runs produce files in the reports/ directory:

File	Description
test_run_<timestamp>.jsonl	Raw test execution events
analysis_<timestamp>.json	Analyzed test results
analysis_<timestamp>.pdf	LLM-generated analysis report
comparison_<timestamp>.json	Multi-run comparison data
comparison_<timestamp>.pdf	LLM-generated comparison report

Make Targets

make install    Install dependencies and Playwright browser
make run        Run all chatbot tests
make headed     Run tests with visible browser
make analyze    Analyze a test report (FILE=path)
make compare    Compare test runs (FILES="path1 path2")
make help       Show available targets

Documentation

• GUIDE.md — Detailed guide for writing tests, page object reference, fixture format, LLM verification patterns
• CLAUDE.md — Developer reference with architecture, implementation details, and module documentation

Copyright and license

The Initial Owner of the Original Code is European Environment Agency (EEA). All Rights Reserved.

See LICENSE.md for details.

Funding

European Environment Agency (EU)