Add testcase for midnight rollover

Author: bouwew

tests/test_usb.py

@@ -1145,6 +1145,21 @@ def test_pulse_collection_consumption(
             fixed_this_hour, is_consumption=True
         ) == (2222 + 3333 + 321, pulse_update_5)
 
+        # Test next midnight rollover
+        pulse_update_6 = fixed_this_hour.replace(hour=0, minute=0, second=3) + td(days=1)
+        assert not tst_consumption.log_rollover
+        tst_consumption.update_pulse_counter(584, 0, pulse_update_6)
+        test_timestamp_3 = pulse_update_6 + td(hours=0, minutes=0, seconds=5)
+        assert tst_consumption.collected_pulses(
+            test_timestamp_3, is_consumption=True
+        ) == (14000, pulse_update_6)
+        pulse_update_7 = fixed_this_hour.replace(hour=0, minute=1, second=3)
+        tst_consumption.update_pulse_counter(50, 0, pulse_update_7)
+        test_timestamp_4 = pulse_update_7 + td(hours=0, minutes=1, seconds=5)
+        assert tst_consumption.collected_pulses(
+            test_timestamp_3, is_consumption=True
+        ) == (500, pulse_update_7)
+
     @freeze_time(dt.now())
     def test_pulse_collection_consumption_empty(
         self, monkeypatch: pytest.MonkeyPatch