new_contents: # -*- coding: utf-8 -*-
  
  import pytest
  
  from skylines.lib.geo import geographic_distance
  from skylines.model.geo import Location
  
  
  @pytest.mark.parametrize(
      "loc1,loc2,expected",
      [
          (
              Location(latitude=0.0, longitude=0.0),
              Location(latitude=0.0, longitude=0.0),
              0.0,
          ),
          (
              Location(latitude=38.898556, longitude=-77.037852),
              Location(latitude=38.897147, longitude=-77.043934),
              548.812,
          ),
      ],
  )
  def test_geographic_distance(loc1, loc2, expected):
      result = geographic_distance(loc1, loc2)
      assert result == pytest.approx(expected)
  
subject: Add basic tests for `geographic_distance()`