code: def testRegression(self):
      inputSize = 1024
      input = list(range(inputSize))
      factor = 0.5
      expected = [factor * n for n in input]
      output = Scale(factor=factor, clipping=False)(input)
      self.assertEqualVector(output, expected)
  
imports: from essentia_test import *
label_desc: Use image node_id 1 for calling the TestScale obj's underlying member method code with example usage: obj.testRegression() without return types