code: def test_camera_movement_delay(self):
      obs1 = self.observe()
      screen1 = self._features.transform_obs(obs1[0])["feature_screen"]
      nexus1 = utils.xy_locs(screen1.unit_type == units.Protoss.Nexus)
  
      self.step(1)
      obs2 = self.observe()
      screen2 = self._features.transform_obs(obs2[0])["feature_screen"]
      nexus2 = utils.xy_locs(screen2.unit_type == units.Protoss.Nexus)
  
      self.assertEqual(nexus1, nexus2)  # Same place.
  
      loc = obs1[0].observation.raw_data.player.camera
      self.move_camera(loc.x + 3, loc.y + 3)
  
      self.step(EXPECTED_ACTION_DELAY + 1)
  
      obs3 = self.observe()
      screen3 = self._features.transform_obs(obs3[0])["feature_screen"]
      nexus3 = utils.xy_locs(screen3.unit_type == units.Protoss.Nexus)
  
      self.assertNotEqual(nexus1, nexus3)
  
file_path: pysc2/pysc2/tests/obs_test.py
imports: from absl.testing import absltest
  from pysc2.lib import actions
  from pysc2.lib import buffs
  from pysc2.lib import features
  from pysc2.lib import units
  from pysc2.tests import utils
  from s2clientprotocol import debug_pb2
  from s2clientprotocol import raw_pb2
label_desc: Use image node_id 10 for calling the ObsTest obj's underlying member method code with example usage: obj.test_camera_movement_delay() without return types