def test_convert_to_homogenous_coordinates_on_empty_input(self):
"""Tests conversion to homogenous coordinates on empty input."""
non_homogenous_coordinates = np.array([])
computed = feature_utils.convert_to_homogenous_coordinates(non_homogenous_coordinates)
self.assertIsNone(computed)
def test_convert_to_homogenous_coordinates_on_none_input(self):
"""Tests conversion to homogenous coordinates on None input."""
non_homogenous_coordinates = None
computed = feature_utils.convert_to_homogenous_coordinates(non_homogenous_coordinates)
self.assertIsNone(computed)
def test_convert_to_homogenous_coordinates_on_valid_input(self):
"""Tests conversion to homogenous coordinates on valid input."""
non_homogenous_coordinates = np.random.rand(10, 2)
computed = feature_utils.convert_to_homogenous_coordinates(non_homogenous_coordinates)
np.testing.assert_allclose(computed[:, :2], non_homogenous_coordinates)
np.testing.assert_allclose(computed[:, 2], 1)