Cleanup hass.io component (#12556)

* Cleanup hass.io component

* fix lint

* Fix all tests

* Fix lint

* fix lint

* fix doc lint

tests/components/hassio/conftest.py

@@ -0,0 +1,40 @@
+"""Fixtures for Hass.io."""
+import os
+from unittest.mock import patch, Mock
+
+import pytest
+
+from homeassistant.setup import async_setup_component
+
+from tests.common import mock_coro
+from . import API_PASSWORD
+
+
+@pytest.fixture
+def hassio_env():
+    """Fixture to inject hassio env."""
+    with patch.dict(os.environ, {'HASSIO': "127.0.0.1"}), \
+            patch('homeassistant.components.hassio.HassIO.is_connected',
+                  Mock(return_value=mock_coro(
+                    {"result": "ok", "data": {}}))), \
+            patch.dict(os.environ, {'HASSIO_TOKEN': "123456"}), \
+            patch('homeassistant.components.hassio.HassIO.'
+                  'get_homeassistant_info',
+                  Mock(return_value=mock_coro(None))):
+        yield
+
+
+@pytest.fixture
+def hassio_client(hassio_env, hass, test_client):
+    """Create mock hassio http client."""
+    with patch('homeassistant.components.hassio.HassIO.update_hass_api',
+               Mock(return_value=mock_coro({"result": "ok"}))), \
+            patch('homeassistant.components.hassio.HassIO.'
+                  'get_homeassistant_info',
+                  Mock(return_value=mock_coro(None))):
+        hass.loop.run_until_complete(async_setup_component(hass, 'hassio', {
+            'http': {
+                'api_password': API_PASSWORD
+            }
+        }))
+    yield hass.loop.run_until_complete(test_client(hass.http.app))