deCONZ improve gateway tests (#26709)

* Improve gateway tests

* Harmonize all tests to use the same gateway initialization method

* Improve scene tests

* Add gateway resync call to platform tests

* Forgot to change switch tests to use common gateway method

* Improve event tests

tests/components/deconz/test_switch.py

@@ -3,13 +3,13 @@ from copy import deepcopy
 
 from asynctest import patch
 
-from homeassistant import config_entries
 from homeassistant.components import deconz
 from homeassistant.setup import async_setup_component
 
-
 import homeassistant.components.switch as switch
 
+from .test_gateway import ENTRY_CONFIG, DECONZ_WEB_REQUEST, setup_deconz_integration
+
 SWITCHES = {
     "1": {
         "id": "On off switch id",
@@ -41,50 +41,6 @@ SWITCHES = {
     },
 }
 
-BRIDGEID = "0123456789"
-
-ENTRY_CONFIG = {
-    deconz.config_flow.CONF_API_KEY: "ABCDEF",
-    deconz.config_flow.CONF_BRIDGEID: BRIDGEID,
-    deconz.config_flow.CONF_HOST: "1.2.3.4",
-    deconz.config_flow.CONF_PORT: 80,
-}
-
-DECONZ_CONFIG = {
-    "bridgeid": BRIDGEID,
-    "mac": "00:11:22:33:44:55",
-    "name": "deCONZ mock gateway",
-    "sw_version": "2.05.69",
-    "websocketport": 1234,
-}
-
-DECONZ_WEB_REQUEST = {"config": DECONZ_CONFIG}
-
-
-async def setup_deconz_integration(hass, config, options, get_state_response):
-    """Create the deCONZ gateway."""
-    config_entry = config_entries.ConfigEntry(
-        version=1,
-        domain=deconz.DOMAIN,
-        title="Mock Title",
-        data=config,
-        source="test",
-        connection_class=config_entries.CONN_CLASS_LOCAL_PUSH,
-        system_options={},
-        options=options,
-        entry_id="1",
-    )
-
-    with patch(
-        "pydeconz.DeconzSession.async_get_state", return_value=get_state_response
-    ), patch("pydeconz.DeconzSession.start", return_value=True):
-        await deconz.async_setup_entry(hass, config_entry)
-    await hass.async_block_till_done()
-
-    hass.config_entries._entries.append(config_entry)
-
-    return hass.data[deconz.DOMAIN][config[deconz.CONF_BRIDGEID]]
-
 
 async def test_platform_manually_configured(hass):
     """Test that we do not discover anything or try to set up a gateway."""
@@ -189,3 +145,7 @@ async def test_switches(hass):
         )
         await hass.async_block_till_done()
         set_callback.assert_called_with("/lights/3/state", {"alert": "none"})
+
+    await gateway.async_reset()
+
+    assert len(hass.states.async_all()) == 2