new_contents: # Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
  
  import unittest
  
  from densepose.structures import normalized_coords_transform
  
  
  class TestStructures(unittest.TestCase):
      def test_normalized_coords_transform(self):
          bbox = (32, 24, 288, 216)
          x0, y0, w, h = bbox
          xmin, ymin, xmax, ymax = x0, y0, x0 + w, y0 + h
          f = normalized_coords_transform(*bbox)
          # Top-left
          expected_p, actual_p = (-1, -1), f((xmin, ymin))
          self.assertEqual(expected_p, actual_p)
          # Top-right
          expected_p, actual_p = (1, -1), f((xmax, ymin))
          self.assertEqual(expected_p, actual_p)
          # Bottom-left
          expected_p, actual_p = (-1, 1), f((xmin, ymax))
          self.assertEqual(expected_p, actual_p)
          # Bottom-right
          expected_p, actual_p = (1, 1), f((xmax, ymax))
          self.assertEqual(expected_p, actual_p)
  
subject: Add target for unit tests + basic test