Initial WS support (#2439)

* Initial WS support

* test

* Update frontend to fc7c4af2

* Fix issue with closing states

* log error

* make data optional

* limit stopping states

* Move wrappers to HomeAssistantWebSocket

* use info

* Use call_soon

* Use lookuptable for WS commands

* Fix tests

tests/conftest.py

@@ -6,6 +6,7 @@ from uuid import uuid4
 
 from aiohttp import web
 from aiohttp.test_utils import TestClient
+from awesomeversion import AwesomeVersion
 import pytest
 
 from supervisor.api import RestAPI
@@ -20,6 +21,12 @@ from tests.common import exists_fixture, load_fixture, load_json_fixture
 # pylint: disable=redefined-outer-name, protected-access
 
 
+async def mock_async_return_true() -> bool:
+    """Mock methods to return True."""
+
+    return True
+
+
 @pytest.fixture
 def docker() -> DockerAPI:
     """Mock DockerAPI."""
@@ -148,6 +155,12 @@ async def coresys(loop, docker, network_manager, aiohttp_client) -> CoreSys:
     coresys_obj.supervisor._connectivity = True
     coresys_obj.host.network._connectivity = True
 
+    # WebSocket
+    coresys_obj.homeassistant.api.check_api_state = mock_async_return_true
+    coresys_obj.homeassistant._websocket._client = AsyncMock(
+        ha_version=AwesomeVersion("2021.2.4")
+    )
+
     yield coresys_obj