"""
Unit tests for Paelladoc MCP tools.
Following TDD approach - tests are written before implementation.
"""
import unittest
import sys
from pathlib import Path
# Ensure we can import Paelladoc modules
project_root = Path(__file__).parent.parent.parent.absolute()
if str(project_root) not in sys.path:
sys.path.insert(0, str(project_root))
# Import directly from the domain layer
from paelladoc.domain import core_logic
class TestPingTool(unittest.TestCase):
"""Unit tests for the ping tool following TDD methodology."""
def test_ping_exists(self):
"""Test that the ping function exists."""
self.assertTrue(
hasattr(core_logic, "ping"),
"The ping function does not exist in core_logic",
)
def test_ping_returns_dict(self):
"""Test that ping returns a dictionary."""
result = core_logic.ping()
self.assertIsInstance(result, dict, "ping should return a dictionary")
def test_ping_has_required_fields(self):
"""Test that ping response has the required fields."""
result = core_logic.ping()
self.assertIn("status", result, "ping response should contain a 'status' field")
self.assertIn(
"message", result, "ping response should contain a 'message' field"
)
def test_ping_returns_expected_values(self):
"""Test that ping returns the expected values."""
result = core_logic.ping()
self.assertEqual(
result["status"],
"ok",
f"ping status should be 'ok', got '{result['status']}'",
)
self.assertEqual(
result["message"],
"pong",
f"ping message should be 'pong', got '{result['message']}'",
)
if __name__ == "__main__":
unittest.main()
