old_contents: from __future__ import absolute_import
  
  import socket
  
  from mock import patch
  
  from sentry.metrics.datadog import DatadogMetricsBackend
  from sentry.testutils import TestCase
  
  
  class DatadogMetricsBackendTest(TestCase):
      def setUp(self):
          self.backend = DatadogMetricsBackend(prefix='sentrytest.')
  
      @patch('datadog.threadstats.base.ThreadStats.increment')
      def test_incr(self, mock_incr):
          self.backend.incr('foo', instance='bar')
          mock_incr.assert_called_once_with(
              'sentrytest.foo', 1,
              sample_rate=1,
              tags=['instance:bar'],
              host=socket.gethostname(),
          )
  
      @patch('datadog.threadstats.base.ThreadStats.timing')
      def test_timing(self, mock_timing):
          self.backend.timing('foo', 30, instance='bar')
          mock_timing.assert_called_once_with(
              'sentrytest.foo', 30,
              sample_rate=1,
              tags=['instance:bar'],
              host=socket.gethostname(),
          )
  
new_contents: from __future__ import absolute_import
  
  import socket
  
  from mock import patch
  
  from sentry.metrics.datadog import DatadogMetricsBackend
  from sentry.testutils import TestCase
  
  
  class DatadogMetricsBackendTest(TestCase):
      def setUp(self):
          self.backend = DatadogMetricsBackend(prefix='sentrytest.')
  
      @patch('datadog.threadstats.base.ThreadStats.increment')
      def test_incr(self, mock_incr):
          self.backend.incr('foo', instance='bar')
          mock_incr.assert_called_once_with(
              'sentrytest.foo', 1,
              tags=['instance:bar'],
              host=socket.gethostname(),
          )
  
      @patch('datadog.threadstats.base.ThreadStats.timing')
      def test_timing(self, mock_timing):
          self.backend.timing('foo', 30, instance='bar')
          mock_timing.assert_called_once_with(
              'sentrytest.foo', 30,
              sample_rate=1,
              tags=['instance:bar'],
              host=socket.gethostname(),
          )
  
subject: Remove no longer valid test