old_contents: """Testing interfaces to digital elevation models.
  """
  import os
  import pytest
  import numpy as np
  from typhon.topography import SRTM30
  
  class TestEnvironment:
      """Testing the environment handler."""
      def setup_method(self):
          """No setup required."""
          pass
  
      def teardown_method(self):
          """No teardown required"""
          pass
  
      def test_srtm30_grids(self):
          for t, _, _, _, _ in SRTM30._tiles:
              lat_min, lon_min, lat_max, lon_max = SRTM30.get_bounds(t)
              lats_r, lons_r = SRTM30.get_grids(t)
              lats, lons = SRTM30.get_native_grids(lat_min, lon_min, lat_max, lon_max)
              print(t)
              assert(np.allclose(lats, lats_r))
              assert(np.allclose(lons, lons_r))
  
      def test_elevation(self):
          lat_min = 30
          lat_max = 50
          lon_min = 10
          lon_max = 30
          lats, lons, z = SRTM30.elevation(lat_min, lon_min, lat_max, lon_max)
  
new_contents: """Testing interfaces to digital elevation models.
  """
  import os
  import pytest
  import numpy as np
  from typhon.topography import SRTM30
  
  class TestEnvironment:
      """Testing the environment handler."""
      def setup_method(self):
          """No setup required."""
          pass
  
      def teardown_method(self):
          """No teardown required"""
          pass
  
      def test_srtm30_grids(self):
          for t, _, _, _, _ in SRTM30._tiles:
              lat_min, lon_min, lat_max, lon_max = SRTM30.get_bounds(t)
              lats_r, lons_r = SRTM30.get_grids(t)
              lats, lons = SRTM30.get_native_grids(lat_min, lon_min, lat_max, lon_max)
              assert(np.allclose(lats, lats_r))
              assert(np.allclose(lons, lons_r))
  
      def test_elevation(self):
          lat_min = 30
          lat_max = 50
          lon_min = 10
          lon_max = 30
          lats, lons, z = SRTM30.elevation(lat_min, lon_min, lat_max, lon_max)
  
subject: Remove print statement