code: def testSize(self):
      inputSize = 512
      fakeSize = 514
      expectedSize = int(inputSize / 2 + 1)
      input = [1] * inputSize
      output = Spectrum(size=fakeSize)(input)
      self.assertEqual(len(output), expectedSize)
  
file_path: essentia/test/src/unittests/standard/test_spectrum.py
imports: from essentia_test import *
label_desc: Use image node_id 5 for calling the TestSpectrum obj's underlying member method code with example usage: obj.testSize() without return types