Use snapshot assertion for Co2signal diagnostics test (#98905)

tests/components/co2signal/test_diagnostics.py

@@ -1,8 +1,9 @@
 """Test the CO2Signal diagnostics."""
 from unittest.mock import patch
 
+from syrupy import SnapshotAssertion
+
 from homeassistant.components.co2signal import DOMAIN
-from homeassistant.components.diagnostics import REDACTED
 from homeassistant.const import CONF_API_KEY
 from homeassistant.core import HomeAssistant
 from homeassistant.setup import async_setup_component
@@ -15,11 +16,15 @@ from tests.typing import ClientSessionGenerator
 
 
 async def test_entry_diagnostics(
-    hass: HomeAssistant, hass_client: ClientSessionGenerator
+    hass: HomeAssistant,
+    hass_client: ClientSessionGenerator,
+    snapshot: SnapshotAssertion,
 ) -> None:
     """Test config entry diagnostics."""
     config_entry = MockConfigEntry(
-        domain=DOMAIN, data={CONF_API_KEY: "api_key", "location": ""}
+        domain=DOMAIN,
+        data={CONF_API_KEY: "api_key", "location": ""},
+        entry_id="904a74160aa6f335526706bee85dfb83",
     )
     config_entry.add_to_hass(hass)
     with patch("CO2Signal.get_latest", return_value=VALID_PAYLOAD):
@@ -27,10 +32,4 @@ async def test_entry_diagnostics(
 
     result = await get_diagnostics_for_config_entry(hass, hass_client, config_entry)
 
-    config_entry_dict = config_entry.as_dict()
-    config_entry_dict["data"][CONF_API_KEY] = REDACTED
-
-    assert result == {
-        "config_entry": config_entry_dict,
-        "data": VALID_PAYLOAD,
-    }
+    assert result == snapshot