refactor: update tests to use async mocks and improve readability

tests/integration/conftest.py

@@ -6,12 +6,18 @@ They are skipped automatically if the server is unreachable.
 
 from __future__ import annotations
 
+import pathlib
+
 import pytest
 
 
-def pytest_ignore_collect(path: str, config: pytest.Config) -> bool:
+def pytest_ignore_collect(
+    collection_path: pathlib.Path, config: pytest.Config
+) -> bool:
     """Skip integration tests unless --integration is passed."""
-    if "integration" in path and not config.getoption("--integration", False):
+    if "integration" in str(collection_path) and not config.getoption(
+        "--integration", False
+    ):
         return True
     return False
 
@@ -22,4 +28,4 @@ def pytest_addoption(parser: pytest.Parser) -> None:
         action="store_true",
         default=False,
         help="Run integration tests (requires PostgreSQL)",
-    )
+    )