Improve influxdb throughput (#12882)

* Batch influxdb events for writing

* Name constants

tests/components/test_influxdb.py

@@ -14,6 +14,9 @@ from tests.common import get_test_home_assistant
 
 
 @mock.patch('influxdb.InfluxDBClient')
+@mock.patch(
+    'homeassistant.components.influxdb.InfluxThread.batch_timeout',
+    mock.Mock(return_value=0))
 class TestInfluxDB(unittest.TestCase):
     """Test the InfluxDB component."""