diff --git a/tests/conftest.py b/tests/conftest.py
index 818aeb9b..006a1adc 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -42,8 +42,30 @@ sys.modules['nodes'] = nodes_mock
 
 
 def pytest_pyfunc_call(pyfuncitem):
-    if inspect.iscoroutinefunction(pyfuncitem.function):
-        asyncio.run(pyfuncitem.obj(**pyfuncitem.funcargs))
+    """Allow bare async tests to run without pytest.mark.asyncio."""
+    test_function = pyfuncitem.function
+    if inspect.iscoroutinefunction(test_function):
+        func = pyfuncitem.obj
+        signature = inspect.signature(func)
+        accepted_kwargs: Dict[str, Any] = {}
+        for name, parameter in signature.parameters.items():
+            if parameter.kind is inspect.Parameter.VAR_POSITIONAL:
+                continue
+            if parameter.kind is inspect.Parameter.VAR_KEYWORD:
+                accepted_kwargs = dict(pyfuncitem.funcargs)
+                break
+            if name in pyfuncitem.funcargs:
+                accepted_kwargs[name] = pyfuncitem.funcargs[name]
+
+        original_policy = asyncio.get_event_loop_policy()
+        policy = pyfuncitem.funcargs.get("event_loop_policy")
+        if policy is not None and policy is not original_policy:
+            asyncio.set_event_loop_policy(policy)
+        try:
+            asyncio.run(func(**accepted_kwargs))
+        finally:
+            if policy is not None and policy is not original_policy:
+                asyncio.set_event_loop_policy(original_policy)
         return True
     return None
 
@@ -196,3 +218,5 @@ def mock_scanner(mock_cache: MockCache, mock_hash_index: MockHashIndex) -> MockS
 @pytest.fixture
 def mock_service(mock_scanner: MockScanner) -> MockModelService:
     return MockModelService(scanner=mock_scanner)
+
+