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 = 0.0
_max = 10.0
instance = FloatHyperParam(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)
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.float_info.max = 1000.0
mock_sys.float_info.min = 0.0
instance = FloatHyperParam()
values = np.array([[0.1], [0.2]])
# run
result = instance._inverse_transform(values)
# assert
expected_result = np.array([[100.],
[200.]])
np.testing.assert_array_equal(result, expected_result)