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Test Suite for MCP Data Server

This directory contains the test suite for the MCP Data Server project.

Structure

  • test_server.py - Unit tests for server functions, utilities, and components
  • test_integration.py - Integration tests for end-to-end query execution
  • conftest.py - Pytest fixtures and configuration
  • __init__.py - Package initialization

Running Tests

Run all tests:

pytest tests/

Run with verbose output:

pytest tests/ -v

Run a specific test file:

pytest tests/test_server.py

Run a specific test:

pytest tests/test_server.py::TestFileLoading::test_load_text_file_exists

Run with coverage:

pytest tests/ --cov=. --cov-report=html

Test Categories

Unit Tests (test_server.py)

  • File loading and parsing utilities
  • SQL parsing from markdown
  • Database isolation and connection handling
  • Query execution and result formatting
  • Data catalog parsing
  • MCP resource and prompt functions
  • Error handling

Integration Tests (test_integration.py)

  • End-to-end query execution
  • Database extensions (spatial, httpfs)
  • Error recovery scenarios
  • Performance and result limiting

Notes

  • Tests are designed to be resilient to changes in markdown file content
  • Mock fixtures are used where appropriate to avoid hard dependencies
  • Some tests may skip if certain DuckDB extensions are unavailable
  • Tests assume DuckDB and required dependencies are installed

Requirements

Install test dependencies:

pip install pytest pytest-cov

Or if using the project's virtual environment, the dependencies should already be installed.