old_contents: """ Unit tests for grid_utils module. """
  
  from datetime import datetime
  import numpy as np
  
  from tint import grid_utils
  from tint.testing.sample_objects import grid, field
  from tint.testing.sample_objects import params, grid_size
  
  
  def test_parse_grid_datetime():
      dt = grid_utils.parse_grid_datetime(grid)
      assert(dt == datetime(2015, 7, 10, 18, 34, 6))
  
  
  def test_get_grid_size():
      grid_size = grid_utils.get_grid_size(grid)
      assert np.all(grid_size == np.array([500., 500., 500.]))
  
  
  def test_extract_grid_data():
      raw, filtered = grid_utils.extract_grid_data(grid, field,
                                                   grid_size, params)
      assert np.max(filtered) == 11
      assert np.min(filtered) == 0
  
new_contents: """ Unit tests for grid_utils module. """
  
  from datetime import datetime
  import numpy as np
  
  from tint import grid_utils
  from tint.testing.sample_objects import grid, field
  from tint.testing.sample_objects import params, grid_size
  
  
  def test_parse_grid_datetime():
      dt = grid_utils.parse_grid_datetime(grid)
      assert(dt == datetime(2015, 7, 10, 18, 34, 102000))
  
  
  def test_get_grid_size():
      grid_size = grid_utils.get_grid_size(grid)
      assert np.all(grid_size == np.array([500., 500., 500.]))
  
  
  def test_extract_grid_data():
      raw, filtered = grid_utils.extract_grid_data(grid, field,
                                                   grid_size, params)
      assert np.max(filtered) == 11
      assert np.min(filtered) == 0
  
subject: Update for unit tests for PR 37