code: def test_spectral_roll_on(self):
      np.testing.assert_almost_equal(spectral_roll_on(const0, Fs), 0.0)
      np.testing.assert_almost_equal(spectral_roll_on(const1, Fs), 0.0)
      np.testing.assert_almost_equal(
          spectral_roll_on(constNeg, Fs), 0.0
      )
      np.testing.assert_almost_equal(spectral_roll_on(constF, Fs), 0.0)
      np.testing.assert_almost_equal(spectral_roll_on(lin, Fs), 0.0)
      np.testing.assert_almost_equal(
          spectral_roll_on(lin0, Fs), 50.0, decimal=1
      )
      np.testing.assert_almost_equal(
          spectral_roll_on(wave, Fs), 5.0, decimal=5
      )
      np.testing.assert_almost_equal(
          spectral_roll_on(offsetWave, Fs), 0.0, decimal=5
      )
      np.testing.assert_almost_equal(
          spectral_roll_on(noiseWave, Fs), 5.0, decimal=5
      )
  
imports: import unittest
  import numpy
  from tsfel.feature_extraction.features import *
label_desc: Use image node_id 46 for calling the TestFeatures obj's underlying member method code with example usage: obj.test_spectral_roll_on() without return types