feat: Add test suite and health check tests for Log Analysis Service

Author: samuelogboye

tests/__init__.py

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+"""Test suite for Log Analysis Service."""

tests/conftest.py

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+"""Pytest configuration and fixtures."""
+
+import asyncio
+from typing import AsyncGenerator, Generator
+
+import pytest
+from fastapi.testclient import TestClient
+from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine, async_sessionmaker
+
+from app.main import app
+from app.models.base import Base
+from app.db.session import get_db
+from app.core.config import get_settings
+
+
+# Test database URL
+TEST_DATABASE_URL = "postgresql+asyncpg://postgres:password@localhost:5432/log_analysis_test_db"
+
+
+@pytest.fixture(scope="session")
+def event_loop() -> Generator:
+    """Create event loop for async tests."""
+    loop = asyncio.get_event_loop_policy().new_event_loop()
+    yield loop
+    loop.close()
+
+
+@pytest.fixture(scope="session")
+async def test_engine():
+    """Create test database engine."""
+    engine = create_async_engine(TEST_DATABASE_URL, echo=False)
+
+    async with engine.begin() as conn:
+        await conn.run_sync(Base.metadata.create_all)
+
+    yield engine
+
+    async with engine.begin() as conn:
+        await conn.run_sync(Base.metadata.drop_all)
+
+    await engine.dispose()
+
+
+@pytest.fixture
+async def test_db(test_engine) -> AsyncGenerator[AsyncSession, None]:
+    """Create test database session."""
+    async_session = async_sessionmaker(
+        test_engine,
+        class_=AsyncSession,
+        expire_on_commit=False,
+    )
+
+    async with async_session() as session:
+        yield session
+
+
+@pytest.fixture
+def client(test_db) -> TestClient:
+    """Create test client with database override."""
+
+    async def override_get_db():
+        yield test_db
+
+    app.dependency_overrides[get_db] = override_get_db
+
+    with TestClient(app) as c:
+        yield c
+
+    app.dependency_overrides.clear()
+
+
+@pytest.fixture
+def mock_jwt_token() -> str:
+    """Create mock JWT token for testing."""
+    from app.core.security import SecurityManager
+
+    security_manager = SecurityManager()
+    token = security_manager.create_access_token(
+        data={"sub": "test_user", "role": "admin"}
+    )
+    return token

tests/test_health.py

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+"""Test health check endpoints."""
+
+from fastapi.testclient import TestClient
+
+
+def test_health_check(client: TestClient):
+    """Test basic health check endpoint."""
+    response = client.get("/health/")
+
+    assert response.status_code == 200
+    data = response.json()
+    assert data["status"] == "healthy"
+    assert "service" in data
+    assert "version" in data
+
+
+def test_root_endpoint(client: TestClient):
+    """Test root endpoint."""
+    response = client.get("/")
+
+    assert response.status_code == 200
+    data = response.json()
+    assert data["status"] == "running"
+    assert "service" in data