Clarify previous state in total_increasing warning message (home-assistant#158805)

Author: ptarjan

homeassistant/components/sensor/recorder.py

@@ -416,8 +416,8 @@ def warn_dip(
         _LOGGER.warning(
             (
                 "Entity %s %shas state class total_increasing, but its state is not"
-                " strictly increasing. Triggered by state %s (%s) with last_updated set"
-                " to %s. Please %s"
+                " strictly increasing. Triggered by state %s (previous state: %s) with"
+                " last_updated set to %s. Please %s"
             ),
             entity_id,
             f"from integration {domain} " if domain else "",

tests/components/sensor/test_recorder.py

@@ -2261,8 +2261,8 @@ async def test_compile_hourly_sum_statistics_total_increasing_small_dip(
     last_updated = states["sensor.test1"][6].last_updated.isoformat()
     assert (
         "Entity sensor.test1 has state class total_increasing, but its state is not "
-        f"strictly increasing. Triggered by state {state} ({previous_state}) with "
-        f"last_updated set to {last_updated}. Please create a bug report at "
+        f"strictly increasing. Triggered by state {state} (previous state: {previous_state}) "
+        f"with last_updated set to {last_updated}. Please create a bug report at "
         "https://github.com/home-assistant/core/issues?q=is%3Aopen+is%3Aissue"
     ) in caplog.text
     statistic_ids = await async_list_statistic_ids(hass)