def test__inverse_transform_no_min_no_max(self, mock_sys):
"""Test that the method ``_inverse_transform`` performs a normalization of values between
``min`` and ``max`` with no min or max set.
"""
# setup
mock_sys.maxsize = 1000
instance = IntHyperParam()
values = np.array([[0.0009], [0.1008]])
# run
result = instance._inverse_transform(values)
# assert
expected_result = np.array([[-500],
[-400]])
np.testing.assert_array_equal(result, expected_result.astype(int))
def test__inverse_transform_min_max(self, mock_sys):
"""Test that the method ``_inverse_transform`` performs a normalization of values between
``min`` and ``max`` with a min and max value set up.
"""
# setup
_min = 0
_max = 10
instance = IntHyperParam(min=_min, max=_max)
values = np.array([[0.1], [0.9]])
# run
result = instance._inverse_transform(values)
# assert
expected_result = np.array([[1],
[9]])
np.testing.assert_array_equal(result, expected_result.astype(int))