text: 
  import numpy as np
  from numpy import testing as nptest
  
  from geneEcomparison import Utils
  
  def test_zscore():
    result = Utils.z_score(np.asarray([1, 3 , 5]))
    
    # https://stackoverflow.com/questions/3302949/best-way-to-assert-for-numpy-array-equality
    assert nptest.assert_allclose(result, np.asarray([-1.22474487,  0,  1.22474487])) is None
    
  