ci: fix HA-harness tests — asyncio_mode=auto (pytest.ini), per-module enable_custom_integrations fixture instead of a global autouse that broke sync tests

pytest.ini

@@ -0,0 +1,3 @@
+[pytest]
+asyncio_mode = auto
+testpaths = tests_backend

tests_backend/conftest.py

@@ -1,7 +1,6 @@
-"""Shared fixtures. HA-harness tests are skipped when homeassistant is not installed
-(the local sandbox has Python 3.10; CI runs them on 3.13 with
-pytest-homeassistant-custom-component)."""
-import pytest
+"""Shared test config. HA-harness tests (test_ha_*.py) are skipped when
+homeassistant is not installed: the local sandbox has Python 3.10, CI runs them
+on 3.13 with pytest-homeassistant-custom-component."""
 
 try:
     import homeassistant  # noqa: F401
@@ -10,10 +9,3 @@ except ImportError:
     HAS_HA = False
 
 collect_ignore_glob = [] if HAS_HA else ["test_ha_*.py"]
-
-
-if HAS_HA:
-    @pytest.fixture(autouse=True)
-    def auto_enable_custom_integrations(enable_custom_integrations):
-        """Allow loading custom_components in the test hass."""
-        yield

tests_backend/test_ha_config_flow.py

@@ -1,4 +1,12 @@
 """Config flow tests (run in CI with pytest-homeassistant-custom-component)."""
+import pytest
+
+
+@pytest.fixture(autouse=True)
+def _enable_custom_integrations(enable_custom_integrations):
+    """Allow loading custom_components in the test hass."""
+    yield
+
 from homeassistant import config_entries
 from homeassistant.core import HomeAssistant
 from homeassistant.data_entry_flow import FlowResultType

tests_backend/test_ha_setup.py

@@ -1,4 +1,12 @@
 """Entry setup/unload tests (CI)."""
+import pytest
+
+
+@pytest.fixture(autouse=True)
+def _enable_custom_integrations(enable_custom_integrations):
+    """Allow loading custom_components in the test hass."""
+    yield
+
 from homeassistant.core import HomeAssistant
 from pytest_homeassistant_custom_component.common import MockConfigEntry
 

tests_backend/test_ha_upload.py

@@ -1,4 +1,12 @@
 """HTTP upload endpoint tests (CI)."""
+import pytest
+
+
+@pytest.fixture(autouse=True)
+def _enable_custom_integrations(enable_custom_integrations):
+    """Allow loading custom_components in the test hass."""
+    yield
+
 from aiohttp import FormData
 from homeassistant.core import HomeAssistant
 from pytest_homeassistant_custom_component.common import MockConfigEntry

tests_backend/test_ha_websocket.py

@@ -1,4 +1,12 @@
 """WebSocket API tests (CI): layout ops, config rev conflict, not_ready gate."""
+import pytest
+
+
+@pytest.fixture(autouse=True)
+def _enable_custom_integrations(enable_custom_integrations):
+    """Allow loading custom_components in the test hass."""
+    yield
+
 from homeassistant.core import HomeAssistant
 from pytest_homeassistant_custom_component.common import MockConfigEntry
 from pytest_homeassistant_custom_component.typing import WebSocketGenerator