feat: implement blog project with CI pipeline

tests/unit/test_unit_app_run.py

@@ -0,0 +1,33 @@
+from contextlib import asynccontextmanager
+from unittest.mock import Mock, patch
+
+import pytest
+from fastapi import FastAPI
+
+from app.main import app_factory, lifespan, main
+
+
+@pytest.mark.asyncio
+async def test_lifespan() -> None:
+    app = FastAPI()
+    assert isinstance(lifespan, asynccontextmanager(lifespan).__class__)  # type: ignore[arg-type]
+
+    async with lifespan(app):
+        pass
+
+
+def test_app_factory() -> None:
+    app = app_factory()
+    assert isinstance(app, FastAPI)
+    assert app.router.lifespan_context == lifespan
+
+
+@patch("app.main.uvicorn.run")
+def test_main(mock_uvicorn_run: Mock) -> None:
+    main()
+    mock_uvicorn_run.assert_called_once_with(
+        app_factory,
+        factory=True,
+        host="0.0.0.0",
+        port=8000,
+    )