Refactor Hue: phue -> aiohue (#13043)

* phue -> aiohue

* Clean up

* Fix config

* Address comments

* Typo

* Fix rebase error

* Mark light as unavailable when bridge is disconnected

* Tests

* Make Throttle work with double delay and async

* Rework update logic

* Don't resolve host to IP

* Clarify comment

* No longer do unnecessary updates

* Add more doc

* Another comment update

* Wrap up tests

* Lint

* Fix tests

* PyLint does not like mix 'n match async and coroutine

* Lint

* Update aiohue to 1.2

* Lint

* Fix await MagicMock

tests/components/hue/conftest.py

@@ -0,0 +1,17 @@
+"""Fixtures for Hue tests."""
+from unittest.mock import patch
+
+import pytest
+
+from tests.common import mock_coro_func
+
+
+@pytest.fixture
+def mock_bridge():
+    """Mock the HueBridge from initializing."""
+    with patch('homeassistant.components.hue._find_username_from_config',
+               return_value=None), \
+            patch('homeassistant.components.hue.HueBridge') as mock_bridge:
+        mock_bridge().async_setup = mock_coro_func()
+        mock_bridge.reset_mock()
+        yield mock_bridge