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# Copyright (c) DataLab Platform Developers, BSD 3-Clause license, see LICENSE file.
"""
Signal offset correction unit test.
"""
# pylint: disable=invalid-name # Allows short reference names like x, y, ...
# pylint: disable=duplicate-code
from __future__ import annotations
import numpy as np
import pytest
import sigima.objects
import sigima.proc.signal
from sigima.tests.data import create_paracetamol_signal
@pytest.mark.validation
def test_signal_offset_correction() -> None:
"""Signal offset correction validation test."""
s1 = create_paracetamol_signal()
param = sigima.objects.ROI1DParam.create(xmin=10.0, xmax=12.0)
s2 = sigima.proc.signal.offset_correction(s1, param)
# Check that the offset correction has been applied
imin, imax = np.searchsorted(s1.x, [param.xmin, param.xmax])
offset = np.mean(s1.y[imin:imax])
assert np.allclose(s2.y, s1.y - offset), "Offset correction failed"
if __name__ == "__main__":
test_signal_offset_correction()
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