Load/unload gpslogger entities correctly between component and platform (#20448)

* Embed device_tracker in gpslogger

* Load/unload gpslogger entities correctly between component and platform

* Await the coroutine directly

tests/components/gpslogger/test_init.py

@@ -2,15 +2,17 @@
 from unittest.mock import patch, Mock
 
 import pytest
+from homeassistant.helpers.dispatcher import DATA_DISPATCHER
 
 from homeassistant import data_entry_flow
-from homeassistant.components import zone
+from homeassistant.components import zone, gpslogger
 from homeassistant.components.device_tracker import \
     DOMAIN as DEVICE_TRACKER_DOMAIN
-from homeassistant.components.gpslogger import DOMAIN
+from homeassistant.components.gpslogger import DOMAIN, TRACKER_UPDATE
 from homeassistant.const import HTTP_OK, HTTP_UNPROCESSABLE_ENTITY, \
-    STATE_HOME, STATE_NOT_HOME
+    STATE_HOME, STATE_NOT_HOME, CONF_WEBHOOK_ID
 from homeassistant.setup import async_setup_component
+from tests.common import MockConfigEntry
 
 HOME_LATITUDE = 37.239622
 HOME_LONGITUDE = -115.815811
@@ -164,3 +166,21 @@ async def test_enter_with_attrs(hass, gpslogger_client, webhook_id):
     assert 102.0 == state.attributes['altitude']
     assert 'gps' == state.attributes['provider']
     assert 'running' == state.attributes['activity']
+
+
+@pytest.mark.xfail(
+    reason='The device_tracker component does not support unloading yet.'
+)
+async def test_load_unload_entry(hass):
+    """Test that the appropriate dispatch signals are added and removed."""
+    entry = MockConfigEntry(domain=DOMAIN, data={
+        CONF_WEBHOOK_ID: 'gpslogger_test'
+    })
+
+    await gpslogger.async_setup_entry(hass, entry)
+    await hass.async_block_till_done()
+    assert 1 == len(hass.data[DATA_DISPATCHER][TRACKER_UPDATE])
+
+    await gpslogger.async_unload_entry(hass, entry)
+    await hass.async_block_till_done()
+    assert 0 == len(hass.data[DATA_DISPATCHER][TRACKER_UPDATE])